C. RUF - JOURNAL
PUBLICATIONS
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Warnock, A., C. Ruf, A. Knoll, “Characterization of River Width Measurement Capability by Space Borne GNSS-Reflectometry,” Remote Sens., 16, 1446, doi: 10.3390/rs16081446, 2024.
Warnock, A. M., C. S. Ruf, A. Russel, M. Al-Khaldi, R. Balasubramaniam, “CYGNSS Level 3 Merged Wind Speed Data Product for Storm Force and Surrounding Environmental Winds,” IEEE J. Selected Topics Appl. Earth Obs., doi: 10.1109/JSTARS.2024.3379934, 2024.
Powell, C.E., C. S. Ruf, D. S. McKague, T. Wang, A. Russel, “An instrument error correlation model for GNSS reflectometry,” Remote Sensing, 16, 742, doi: 10.3390/rs16050742, 2024.
Powell, C.E., C. S. Ruf, S. Gleason, S. C. R. Rafkin, “Sampled Together: Assessing the Value of Simultaneous Co-located Measurements for Optimal Satellite Configurations,” Bull. Amer. Meteor. Soc., doi: 10.1175/BAMS-D-23-0198.1, Dec. 2023.
Abdalati, W., N. Baker, S. Boland, M. Bonadonna, C. A. Clayson, B. Demoz, K. Foster, C. Frankenberg, M. Hakub, T. Jorgensen, R. Kramer, D. Limonadi, A. Michalak, A. Nasel, P. Patterson, P. Pilewskie, S. Platnick, C. Powell, J. Privette, C. Ruf, T. Schneider, J. Schulz, P. Selmants, R. Shah, Q. Song, G. Stephens, T. Stryker, W. Su, M. Van Den Heever, A. Veldman, D. Waliser, E. Weatherhead, “Towards a U.S. Framework for Continuity of Satellite Observations of Earth’s Climate and for Supporting Societal Resilience,” AGU Earth’s Future, doi: 10.1029/2023EF003757, 2023.
Balasubramaniam, R., C. S. Ruf, “Development and Application of a GNSS-R Error Model for Hurricane Winds,” IEEE J. Selected Topics Appl. Earth Obs., Vol. 17, pp 2336-2346, doi: 10.1109/JSTARS.2023.3344371, 2023.
Carreno-Luengo, H., C. Ruf, S. Gleason, A. Russel, “Detection of inland water bodies under dense biomass by CYGNSS Hugo Carreno-Luengo,” Remote Sensing Environ., doi: 10.1016/j.rse.2023.113896, 2023.
Carreno-Luengo, H., C. Ruf, S. Gleason, A. Russel, “A New Multi-Resolution CYGNSS Data Product for Fully and Partially Coherent Scattering,” IEEE Trans. Geosci. Remote Sens., doi: 10.1109/TGRS.2023.3318639, 2023.
Al-Khaldi, M.M., S. Gleason, J.T. Johnson, R. Balasubramaniam, C. Ruf, D.S. McKague, B. Annane, T. Wang, A. Russel. D. Twigg, “Using Synthetic Cyclone Models for High Wind GNSS-R Calibration, Validation and Algorithm Development: A CYGNSS Case Study,” IEEE Trans. Geosci. Remote Sens. , doi: 10.1109/TGRS.2023.3294870, 2023.
Sun, Y., T. Bakker, C. Ruf, Y. Pan, “Effects of microplastics and surfactants on surface roughness of water waves,” Scientific Reports, doi: 10.1038/s41598-023-29088-9, 2023.
Mayers, D. R., C. S. Ruf, A. M. Warnock, “CYGNSS Storm-Centric Tropical Cyclone Gridded Wind Speed Product,” J. Appl. Meteor. Climatol., doi: 10.1175/JAMC-D-22-0054.1, 2023.
Winkelried, J., C. Ruf, S. Gleason, “Spatial and Temporal Sampling Properties of a Large GNSS-R Satellite Constellation,” Remote Sens., 15, 333, doi: 10.3390/rs15020333, 2023.
Carreno Luengo, H., C. S. Ruf, “Mapping Freezing and Thawing Surface State Periods with the CYGNSS Based F/T Seasonal Threshold Algorithm,” IEEE J. Selected Topics Appl. Earth Obs. Remote Sens., doi: 10.1109/JSTARS.2022.3216463, 2022.
Campbell, J., R. Akbar, A. Bringer, D. Comite, L. Dente, S. Gleason, L. Guerriero, E. Hodges, J. Johnson, S. Kim, A. Melebari, N. Pierdicca, C. S. Ruf, L. Tsang, T. Wang, H. Xu, J. Zhu, M. Moghaddam, “Intercomparison of Electromagnetic Scattering Models for Delay-Doppler Maps along a CYGNSS Land Track with Topography,” IEEE Trans. Geosci. Remote Sens., doi: 10.1109/TGRS.2022.3210160, 2022.
Asharaf, S., D. Posselt, F. Said, C. Ruf, “Updates on CYGNSS Ocean Surface Wind Validation in the Tropics,” J. Oceanic Atmos. Tech., doi: 10.1175/JTECH-D-21-0168.1, 2022.
Pu, Z., Y. Wang, X. Li, C. Ruf, L. Bi, A. Mehra, “Impacts of Assimilating CYGNSS Satellite Ocean Surface Wind on Prediction of Landfalling Hurricanes with the HWRF Model,” Remote Sensing, 14, 2118, doi: 10.3390/rs14092118, 2022.
Powell, C. E., C. S. Ruf, A. Russel, “An Improved Blackbody Calibration Cadence for CYGNSS,” IEEE Trans. Geosci. Remote Sens., doi: 10.1109/TGRS.2022.3165001, 2022.
Asgarimehr, M., C. Arnold, T. Weigel, C. Ruf, J. Wickert, “GNSS Reflectometry Global Ocean Wind Speed using Deep Learning: Development and Assessment of CyGNSSnet,” Remote Sensing of Environment, doi: 10.1016/j.rse.2021.112801, 2022.
Gerlein-Safdi, C., A. A. Bloom, G. Plant, E. Kort, C. S. Ruf, “Improving representation of tropical wetland methane emissions with CYGNSS inundation maps,” Global Biogeochemical Cycles, doi: 10.1029/2020GB006890, 2021.
Pascual, D., M. P. Clarizia, C. S. Ruf, “Improved CYGNSS Wind Speed Retrieval Using Significant Wave Height Correction,” Remote Sensing, doi: 10.3390/rs13214313, 2021.
Carreno Luengo, H., C. S. Ruf, “Retrieving Freeze/Thaw Surface State from CYGNSS Measurements,” IEEE Trans. Geosci. Remote Sens., doi: 10.1109/TGRS.2021.3120932, 2021.
Gleason, S., M. M. Al-Khaldi, C. Ruf, D. S. McKague, T. Wang, A. Russel, “Characterizing and Mitigating Digital Sampling Effects on the CYGNSS Level 1 Calibration,” IEEE Trans. Geosci. Remote Sens., doi: 10.1109/TGRS.2021.3120026, 2021.
Carreno Luengo, H., et al., “The IEEE-SA Working Group on Spaceborne GNSS-R: Scene Study,” IEEE Access, doi: 10.1109/ACCESS.2021.3089762, 2021.
Evans, M. C., C. S. Ruf, “Towards the Detection and Imaging of Ocean Microplastics with a Spaceborne Radar,” IEEE Trans. Geosci. Remote Sens., doi: 10.1109/TGRS.2021.3081691, 2021.
Carreno-Luengo, H., J. Crespo, R. Akbar, A. Bringer, A. Warnock, M. Morris, C. Ruf, “The CYGNSS Mission: On-Going Science Team Investigations,” Remote Sensing, 13(9), 1814, doi: 10.3390/rs13091814, 2021.
Wang, T., C. S. Ruf, S. Gleason, A. J. O’Brien, D. S. McKague, B. P. Block, A. Russel, “Dynamic Calibration of GPS Effective Isotropic Radiated Power for GNSS-Reflectometry Earth Remote Sensing,” IEEE Trans. Geosci. Remote Sens., doi: 10.1109/TGRS.2021.3070238, 2021.
Pascual, D., M. P. Clarizia, C. S. Ruf, “Spaceborne Demonstration of GNSS-R Scattering Cross-Section Sensitivity to Wind Direction,” Geosci. Remote. Sens. Ltrs., doi: 10.1109/LGRS.2021.3049526, 2021.
Asharaf, S., D. Waliser, D. Posselt, C. Ruf, C. Zhang, A. Putra, “CYGNSS Ocean Surface Wind Validation in the Tropics,” J. Oceanic Atmos. Tech., doi: 10.1175/JTECH-D-20-0079.1, 2020.
Mayers, D., C. S. Ruf, “MTrack: Improved Center Fix of Tropical Cyclones from SMAP Wind Observations,” Bull. Amer. Meteor. Soc., doi: 10.1175/BAMS-D-20-0068.1, 2020.
Balasubramaniam, R., C. Ruf, “Neural Network Based Quality Control of CYGNSS Wind Retrieval,” Remote Sensing: Oceans, 12,2859, doi:10.3390/rs12172859, 2020.
Balasubramaniam, R., C. Ruf, “Azimuthal dependence of GNSS-R scattering cross-section in hurricanes,” J. Geophys. Res.: Oceans, doi: 10.1029/2020JC016167, 2020.
Hoseini, M, M. Asgarimehr, V. Zavorotny, H. Nahavandchi, C. Ruf, J. Wickert, “First Evidence of Mesoscale Ocean Eddies Signature in GNSS Reflectometry Measurements,” Remote Sensing, doi: 10.3390/rs12030542, 12(3), 542, 2020.
Clarizia, M.P., C.S. Ruf, “Statistical Derivation of Wind Speeds from CYGNSS Data,” IEEE Trans. Geosci. Remote Sens., doi: 10.1109/TGRS.2019.2959715, 2020.
Balasubramaniam, R., C. Ruf, “Characterization of Rain Impact on L-Band GNSS-R Ocean Surface Measurements,” Remote Sensing of Environment, 239(15), doi: 10.1016/j.rse.2019.111607, 2020.
Mayers, D., C. S. Ruf, “Estimating the True Maximum Sustained Wind Speed of a Tropical Cyclone from Spatially Averaged Observations,” J. Appl. Meteor. Climatol., doi: 10.1175/JAMC-D-19-0177.1, 2020.
Cardellach, E, W. Li, A. Rius, M. Semmling, J. Wickert, C. Ruf, C. Buontempo, “First Precise Spaceborne Sea Surface Altimetry With GNSS Reflected Signals,” IEEE J. Sel. Topics Appl. Earth Obs. Remote Sens., doi: 10.1109/JSTARS.2019.2952694, 2019.
Gerlein-Safdi, C., C. S. Ruf, “A CYGNSS-Based Algorithm for the Detection of Inland Waterbodies,”Geophys. Res. Ltrs., doi: 10.1029/2019GL085134, 2019.
Warnock, A., C. Ruf, “Response to Variations in River Flowrate by a Spaceborne GNSS-R River Width Estimator,” Remote Sens., 11(20), 2450, doi: 10.3390/rs11202450, 2019.
Ruf, C. S., S. Asharaf, R. Balasubramaniam, S. Gleason, T. Lang, D. McKague, D. Twigg, D. Waliser, “In-Orbit Performance of the Constellation of CYGNSS Hurricane Satellites,” Bull. Amer. Meteor. Soc., doi: 10.1175/BAMS-D-18-0337.1, 2019.
Gleason, S., J. Johnson, C. Ruf, C. Bussy-Virat, “Characterizing Background Signals and Noise in Spaceborne GNSS Reflection Ocean Observations,” IEEE Geosci. Remote Sens. Ltrs., doi: 10.1109/LGRS.2019.2926695, 2019.
Mayers, D., and C. S. Ruf, “Tropical Cyclone Center Fix using CYGNSS Winds,” J. Appl. Meteor. Climatol., doi: 10.1175/JAMC-D-19-0054.1, 2019.
Cui, Z., Z. Pu, V. Tallapragada, R. Atlas, C. S. Ruf, “Impact of CYGNSS Ocean Surface Wind Speeds on Numerical Simulations of Hurricanes Harvey and Irma (2017),” Geophys. Res. Ltrs., doi: 10.1029/2019GL082236, 2019.
Krien, Y., G. Arnaud, R. Cece, C. Ruf, A. Belmadani, J. Khan, D. Bernard, A.K.M.S. Islam, F. Durand, L. Testut, P. Palany, N. Zahibo, "Can we improve parametric cyclonic wind fields using recent satellite remote sensing data?," Remote Sensing, 10, 1963, doi:10.3390/rs10121963, 2018.
Ruf, C.S., C. Chew, T. Lang, M.G. Morris, K. Nave, A. Ridley, R. Balasubramaniam, "A New Paradigm in Earth Environmental Monitoring with the CYGNSS Small Satellite Constellation," Scientific Reports, doi: 10.1038/s41598-018-27127-4, 2018.
Ruf, C., S. Gleason, D. S. McKague, “Assessment of CYGNSS Wind Speed Retrieval Uncertainty,” IEEE J. Sel. Topics Appl. Earth Obs. Remote Sens., doi: 10.1109/JSTARS.2018.2825948, 2018.
Ruf, C., R. Balasubramaniam, “Development of the CYGNSS Geophysical Model Function for Wind Speed,” IEEE J. Sel. Topics Appl. Earth Obs. Remote Sens., doi: 10.1109/JSTARS.2018.2833075, 2018.
Gleason, S., S. Ruf, A. O'Brien, D. S. McKague, “The CYGNSS Level 1 Calibration Algorithm and Error Analysis Based On On-Orbit Measurements,” IEEE J. Sel. Topics Appl. Earth Obs. Remote Sens., doi: 10.1109/JSTARS.2018.2832981, 2018.
Bussy-Virat, C. D., C. S. Ruf, A. J. Ridley, “Relationship between temporal and spatial resolution for a constellation of GNSS-R satellites,” IEEE J. Sel. Topics Appl. Earth Obs. Remote Sens., doi: 10.1109/JSTARS.2018.2833426, 2018.
Morris, M., and C. S. Ruf, “Determining Tropical Cyclone Surface Wind Speed Structure and Intensity with the CYGNSS Satellite Constellation,” J. Appl. Meteor. Climatol., 56(7), 1847–1865, doi: 10.1175/JAMC-D-16-0375.1, 2017.
Clarizia, M., and C. Ruf, “Bayesian Wind Speed Estimation Conditioned on Significant Wave Height for GNSS-R Ocean Observations,” J. Atmos. Oceanic Techn., doi:10.1175/JTECH-D-16-0196.1, 34(6), 1193-1202, 2017.
Morris, M., and C. S. Ruf, “Estimating Tropical Cyclone Integrated Kinetic Energy with the CYGNSS Satellite Constellation,” J. Appl. Meteor. Climatol., 56, 235–245, doi: 10.1175/JAMC-D-16-0176.1, 2017.
Kroodsma, R.A., D.S. McKague and C.S. Ruf, “Vicarious Cold Calibration for Conical Scanning Microwave Imagers,” IEEE Trans. Geosci. Remote Sens., doi:10.1109/TGRS.2016.2615552, 55(2), 816-827, 2017.
Yang, J. X., D. S. McKague and C. S. Ruf, “Uncertainties in Radiometer Intercalibration associated with Variability in Geophysical Parameters,” J. Geophys. Res. Atmos., doi:10.1002/2016JD024937, 2016.
Chen-Zhang, D. D., C. S. Ruf, F. Ardhuin, and J. Park, “GNSS-R nonlocal sea state dependencies: Model and empirical verification,” J. Geophys. Res. Oceans, 121, doi:10.1002/2016JC012308, 2016.
Clarizia, M. P., and C. S. Ruf, “On the Spatial Resolution of GNSS-Reflectometry,” IEEE Geosci. Remote Sens. Ltrs., doi:10.1109/LGRS.2016.2565380,2016.
Clarizia, M. P., and C. S. Ruf, “Wind Speed Retrieval Algorithm for the Cyclone Global Navigation Satellite System (CYGNSS) Mission,” IEEE Trans Geosci. Remote Sens., 10.1109/TGRS.2016.2541343, 2016.
Chen, D. D., C. S. Ruf and S. T. Gleason, “Response time of mean square slope to wind forcing: An empirical investigation,” J. Geophys. Res.: Oceans., doi: 10.1002/2016JC011661, 2016.
Ruf, C. S., R. Atlas, P. S. Chang, M. P. Clarizia, J. L. Garrison, S. Gleason, S. J. Katzberg, Z. Jelenak, J. T. Johnson, S. J. Majumdar, A. O’Brien, D. J. Posselt, A. J. Ridley, R. J. Rose, V. U. Zavorotny,“ New Ocean Winds Satellite Mission to Probe Hurricanes and Tropical Convection,” Bull. Amer. Meteor. Soc., doi:10.1175/BAMS-D-14-00218.1, pp385-395, Mar 2016.
Gleason, S., C. Ruf, M. P. Clarizia, A. O’Brien, “Calibration and Unwrapping of the Normalized Scattering Cross Section for the Cyclone Global Navigation Satellite System (CYGNSS),” IEEE Trans. Geosci. Remote Sens., doi: 10.1109/TGRS.2015.2502245, 2016.
Clarizia, M.P., C. Ruf, P. Cipollini and C. Zuffada, “First Spaceborne Observation of Sea Surface Height Using GPS Reflectometry,” Geophys. Res. Let., 43, doi:10.1002/2015GL066624, 2016.
Yang, J. X., D. S. McKague and C. S. Ruf, “Boreal, Temperate, and Tropical Forests as Vicarious Calibration Sites for Spaceborne Microwave Radiometry,” IEEE Trans. Geosci. Remote Sens.,doi: 10.1109/TGRS.2015.2472532, 54(2), 1035-1051, 2016.
Morris, M., and C. S. Ruf, “A Coupled-Pixel Model (CPM) Atmospheric Retrieval Algorithm for High Resolution Imagers,” J. Atmos. Oceanic Technol., 32(10), 1866-1879, doi:10.1175/JTECH-D-15-0016.1., 2015.
Chen, D., and C. S. Ruf, “Adaptive Control of Undetected Radio Frequency Interference with a Spaceborne Microwave Radiometer, IEEE Trans. Geosci. Remote Sens., doi: 10.1109/TGRS.2015.2414395, 53(9), Sep. 2015.
Clarizia, M. P., Ruf, C.; Jales, P. and Gommenginger, C., “Spaceborne GNSS-R Minimum Variance Wind Speed Estimator,” IEEE Trans Geosci. Remote Sens., 52(11), 6829-6843, doi: 10.1109/TGRS.2014.2303831, Nov. 2014.
Yang, J. X., D. S. McKague and C. S. Ruf, “Land contamination correction for passive microwave radiometer data: Demonstration of wind retrieval in the Great Lakes using SSM/I,” J. Atmos. Oceanic. Tech., 31, doi:10.1175/JTECH-D-13-00254.1, Oct. 2014.
Le Vine, D.M., P. de Matthaeis, C. Ruf and D. Chen, “Aquarius RFI Detection and Mitigation: Assessment and Examples,” IEEE Trans. Geosci. Remote Sens., 52(8), 4574-4584, doi: r 10.1109/TGRS.2013.2282595, Aug. 2014.
Piepmeier, J. R., J. T. Johnson, P. N. Mohammed, D. Bradley, C. Ruf, M. Aksoy, R. Garcia, D. Hudson, L. Miles and M. Wong, “Radio-Frequency Interference Mitigation for the Soil Moisture Active Passive Microwave Radiometer,” . IEEE Trans. Geosci. Remote Sens., 52(1), 761-775, doi: 10.1109/TGRS.2013.2281266, Jan. 2014.
Kroodsma, R., D. McKague and C. S. Ruf, “Extension of Vicarious Cold Calibration to 85-92 GHz forYang, J. X., D. S. McKague and C. S. Ruf, “Land contamination correction for passive microwave radiometer data: Demonstration of wind retrieval in the Great Lakes using SSM/I,” J. Atmos. Oceanic. Tech., 31, doi:10.1175/JTECH-D-13-00254.1, Oct. 2014. Spaceborne Microwave Radiometers,” IEEE Trans Geosci. Remote Sens., 51(9), 4743-4751, doi: 10.1109/TGRS.2013.2267152,Sep. 2013.
Meadows, L.A. C. Whelan, D. Barrick, R. Kroodsma, C. Ruf, C.C. Teague, G.A. Meadows and S. Wang, “High Frequency Radar and its Application to Fresh Water,” J. Great Lakes Research, doi:10.1016/j.jglr.2013.01.002, Mar 2013.
Renno, N. O., and C.S. Ruf, “Comments on the Search for Electrostatic Discharges on Mars,” The Astrophysical Journal, 761:88, doi:10.1088/0004-637X/761/2/88, Dec 2012.
Misra, S., R.D. De Roo and C.S. Ruf, “An Improved Radio Frequency Interference Model: Reevaluation of the Kurtosis Detection Algorithm Performance under Central-Limit Conditions,” IEEE Trans. Geosci. Remote Sens., 50(11), 4565-4574, doi:10.1109/TGRS.2012.2191972, 2012.
Misra, S., and C.S. Ruf, “Analysis of Radio Frequency Interference Detection Algorithms in the Angular Domain for SMOS,” IEEE Trans. Geosci. Remote Sens., 50(5), 1448-1457, doi:10.1109/TGRS.2011.2176949, 2012.
Kroodsma, R.A., D.S. McKague, C.S. Ruf, "Inter-Calibration of Microwave Radiometers using the Vicarious Cold Calibration Double Difference Method," J. Selected Topics Remote Sensing, 5(3), 1006-1013, doi:10.1109/JSTARS.2012.2195773, 2012.
Amarin, R. A., W. L. Jones, S. F. El-Nimri, J. W. Johnson, C. S. Ruf, T. L. Miller, and E. Uhlhorn , “Hurricane Wind Speed Measurements in Rainy Conditions Using the Airborne Hurricane Imaging Radiometer (HIRAD),” IEEE Trans. Geosci. Remote Sens., 50(1), 180-192, doi:10.1109/TGRS.2011.2161637, 2012.
Park, J., J. T. Johnson, N. Majurec, N. Niamsuwan, J. Piepmeier, P. Mohammed, C. Ruf, S. Misra, S. Yueh and S. Dinardo, “Airborne L-band Radio Frequency Interference Observations from the SMAPVEX08 Campaign and Associated Flights,” IEEE Trans. Geosci. Remote Sens., 49(9), 3359-3370, doi:10.1109/TGRS.2011.2107560, 2011.
McKague, D.S., C.S. Ruf and J.J. Puckett, “Beam Spoiling Correction for Spaceborne Microwave Radiometers using the Two-Point Vicarious Calibration Method,” IEEE Trans. Geosci. Remote Sens., 49(1), 21-27, 10.1109/TGRS.2010.2068052, 2011.
Bailey, M.C., R. Amarin, J. Johnson, P. Nelson, M. James, D. Simmons, C. Ruf, L. Jones and X. Gong, “Multi-Frequency Synthetic Thinned Array Antenna for the Hurricane Imaging Radiometer,” IEEE Trans. Antennas and Propagat., 58(8), doi:10.1109/TAP.2010.2050453, 2010.
Peng, J., and C. S. Ruf, “Effects of clock frequency stability on digital microwave radiometer performance,” Radio Sci., 45, RS4005, doi:10.1029/2009RS004272, 2010.
Amarin, R., C. Ruf and L. Jones, “Impact of Spatial Resolution on Wind Field Derived Estimates of Air Pressure Depression in the Hurricane Eye,” Remote Sens., 2(3), 665-672, doi:10.3390/rs2030665, 2010.
Peng, J., and C. S. Ruf, “Covariance Statistics of Fully Polarimetric Brightness Temperature Measurements,” Geoosci. Rem. Sens. Ltrs., 7(3), doi:10.1109/LGRS.2009.2039115, 2010.
De Roo, R. D. and S. Misra, “A Moment Ratio RFI Detection Algorithm That Can Detect Pulsed Sinuisoids of Any Duty Cycle,” Geoosci. Rem. Sens. Ltrs., 7(3), doi:10.1109/LGRS.2010.2043051, 2010.
El-Nimri, S. F., W. L. Jones, E. Uhlhorn, C. Ruf, J. Johnson and P. Black, “An Improved C-band Ocean Surface Emissivity Model at Hurricane-force Wind Speeds over a Wide Range of Earth Incidence Angles,” IEEE Geosci. Remote Sens. Ltrs, 7(4), 10.1109/LGRS.2010.2043814, 2010.
Misra, S., P. N. Mohammed, B. Guner, C. S. Ruf, J. R. Piepmeier and J. T. Johnson, “Microwave Radiometer Radio Frequency Interference Detection Algorithms: A Comparative Study,” IEEE Trans. Geosci. Remote Sens., 47(11), 3742-3754, doi:10.1109/TGRS.2009.2031104, 2009.
Lim, B. H., and C. S. Ruf, “A High Resolution Full Earth Disk Model for Evaluating Synthetic Aperture Passive Microwave Observations from GEO,” IEEE Trans. Geosci. Remote Sens., 47(11), 3731-3741, doi:10.1109/TGRS.2009.2031172, 2009.
Keihm, S., S. Brown, J. Teixeira, S. Desai, W. Lu, E. Fetzer, C. Ruf, X. Huang and Y. Yung, “Ocean Water Vapor and Cloud Liquid Water Trends from 1992-2005 TOPEX Microwave Radiometer Data,” J. Geophys. Res., 114(D18101), doi:10.1029/2009JD012145, 2009.
Ruf, C., N. O. Renno, J. F. Kok, E. Bandelier, M. J. Sander, S. Gross, L. Skjerve, and B. Cantor, “Emission of Non-thermal Microwave Radiation by a Martian Dust Storm,” Geophys. Res. Lett., 36(13), L13202, doi:10.1029/2009GL038715, 2009.
Peng, J., and C.
S. Ruf, “Covariance Statistics of Polarimetric Brightness Temperature
Measurements” IEEE Trans. Geosci. Remote Sens., 46(10), 3238-3251,
2008.
Misra, S., and C. S. Ruf,
“Detection of Radio Frequency Interference for the Aquarius Radiometer,” IEEE
Trans. Geosci. Remote Sens., 46(10), 3123-3128, 2008.
Peng, J., and C. S. Ruf,
“Calibration Method for Fully Polarimetric Microwave Radiometers Using the Correlated
Noise Calibration Standard,” IEEE Trans. Geosci. Remote Sens., 46(10),
3087-3097, 2008.
De Roo, R.D.,
and S. Misra, “A Demonstration of the Effects of Digitization on the Calculation of
Kurtosis for the Detection of RFI in Microwave Radiometry,” IEEE Trans. Geosci.
Remote Sens., 46(10), 3129-3136, 2008.
Lagerloef, G., F. R. Colomb, D. Le Vine, F. Wentz, S. Yueh, C. Ruf, J. Lilly, J. Gunn, Y. Chao, A. deCharon, G. Feldman and C. Swift, “The Aquarius/SAC-D mission –Designed to Meet the Salinity Remote Sensing Challenge,” Oceanography – Special Issues on Salinity, 21(1), 68-81, doi: 10.5670/oceanog.2008.68, Mar 2008.
Tanner, A.B., W.J. Wilson, B.H.
Lambrigsten, S.J. Dinardo, S.T. Brown, P.P. Kangaslahti, T.C. Gaier, C.S. Ruf, S.M. Gross,
B.H. Lim, S. Musko, S. Rogacki, J.R. Piepmeier, “Initial Results of the Geostationary
Synthetic Thinned Array Radiometer (GeoSTAR) Demonstrator Instrument,” IEEE Trans.
Geosci. Remote Sens., 45(7), 1947-1957, 2007.
De Roo, R., S. Misra and C. Ruf,
“Sensitivity of the Kurtosis Statistic as a Detector of Pulsed Sinusoidal RFI,”
IEEE Trans. Geosci. Remote Sens., 45(7), 1938-1946, 2007.
Brown, S.T., and
C.S.Ruf, “Validation and Development of Melting Layer Models Using Constraints by
Active/Passive Microwave Observations of Rain and the Wind Roughened Ocean Surface,”
AMS J. Oceanic Atmos. Tech., 24(4), 543-563,
2007.
Ruf, C.S., and A.M. Warnock,
“GEOSAT Follow On Water Vapor Radiometer: Performance with a Shared Active/Passive
Antenna,” IEEE Trans. Geosci. Remote Sens. , 45(4),
970-977, 2007.
Ruf, C.S., S. M. Gross and S.
Misra, “RFI Detection and Mitigation for Microwave Radiometry with an Agile Digital
Detector,” IEEE Trans. Geosci. Remote Sens. , 44(3), 694-706, 2006.
Brown, S.T., C.S. Ruf
and D.R. Lyzenga, “An Emissivity Based Wind
Vector Retrieval Algorithm for the WindSat Polarimetric Radiometer,” IEEE
Trans. Geosci. Remote Sens., 44(3), 611-621,
2006.
Ruf, C.S., Y. Hu and S.T.
Brown, “Calibration of WindSat Polarimetric Channels with a Vicarious Cold
Reference,” IEEE Trans. Geosci. Remote Sens., 44(3),
470-475, 2006.
Brown, S., and C. Ruf, “Determination
of a Hot Blackbody Reference Target over the Amazon Rainforest for the On-orbit
Calibration of Microwave Radiometers,” AMS J. Oceanic Atmos. Tech., 22(9), 1340-1352, 2005.
Brown, S., C. Ruf, S. Keihm and A.
Kitiyakara, “Jason Microwave Radiometer performance and on-orbit
calibration,” Marine Geodesy, 27(1-2),
199-220, 2004.
Ruf, C.S. and J. Li, “A Correlated Noise
Calibration Standard for Interferometric, Polarimetric and Autocorrelation Microwave
Radiometers,” IEEE Trans. Geosci. Remote
Sens., 41(10), 2187-2196, 2003.
Ruf, C.S., “Vicarious
Calibration of an Ocean Salinity Radiometer from Low Earth Orbit,” AMS J. Atmos.
Oceanic Tech., 20(11), 1656-1670, 2003.
Fischman, M.A., A.W.
England and C.S. Ruf, “How digital correlation affects the fringe washing function in
L-Band aperture synthesis radiometry”, IEEE Trans. Geosci. Remote Sens., 40(3),
671-679, 2002.
Ruf, C.S., “Characterization and
Correction of a Drift in Calibration of the TOPEX Microwave Radiometer”, IEEE Trans.
Geosci. Remote Sens., 40(2), 509-511, 2002.
Tran, N., D. Vandemark, C.
Ruf and B. Chapron, “The dependence of nadir ocean surface emissivity on wind vector
as measured with TMR”, IEEE Trans. Geosci. Remote Sens., 40(2), 515-523, 2002.
Giampaolo, J.C. and
C.S. Ruf, “The Effect of Atmospheric Stability on Microwave Excess Emissivity due to
Wind,” IEEE Trans. Geosci. Remote Sens., 39(10), 2311-2314, 2001.
Ruf, C.S. and H. Zhang,
“Performance Evaluation of Single and Multichannel Microwave Radiometers for Soil
Moisture Retrieval,” Remote Sens. of Envir., 75(1), 86-99, 2001.
Gerrard, A.J., T.J. Kane,
J.P.Thayer, C.S. Ruf and R.L. Collins, “Consideration of non-Poisson distributions
for lidar applications” Appl. Optics, 40(9), 1488-1492, 2001.
Keihm, S.J., V. Zlotnicki
and C.S. Ruf, “TOPEX Microwave Radiometer Performance Evaluation, 1992-1998,”
IEEE Trans. Geosci. Remote Sens., 38(3),
1379-1386, 2000.
Cruz-Pol, S.L. and
C.S. Ruf, “A modified model for specular sea surface emissivity at microwave
frequencies,” IEEE Trans. Geosci. Remote Sens., 38(2), 858-869, 2000.
Ruf, C.S. “Detection of
calibration drifts in spaceborne microwave radiometers using a vicarious cold
reference,” IEEE Trans. Geosci. Remote Sens., 38(1),
44-52, 2000.
Bobak, J.P. and C.S. Ruf,
“Improvements and complications involved with adding an 85 GHz channel to cloud
liquid water radiometers,” IEEE Trans. Geosci. Remote Sens., 38(1), 214-225, 2000.
Bobak, J.P. and C.S.
Ruf, “A new model for the structure function of integrated water vapor in
turbulence,” Radio Science, 34(6),
1461-1474, 1999.
Ruf,
C.S. “Constraints on the polarization purity of a Stokes microwave radiometer,”
Radio Science, 33(6), 1617-1639, 1998.
Cruz-Pol, S.L., C.S.
Ruf, and S.J. Keihm, “Improved 20-32 GHz Atmospheric Absorption Model,” Radio
Science, 33(5), 1319-1334, 1998.
Bas, C.F., T.J. Kane, and
C.S. Ruf, “Enhanced-resolution lidar,” J. Opt. Soc. Am. A, 14(5), 1044-1050, 1997.
Ruf, C.S. and S.E. Beus,
“Retrieval of tropospheric water vapor scale height from horizontal turbulence
structure,” IEEE Trans. Geosci. Remote Sens., 35(2),
203-211, 1997.
Ruf, C.S., R.P. Dewan, and B.
Subramanya, “Combined microwave radiometer and altimeter retrieval of wet path delay
for the GEOSAT Follow On,” IEEE Trans. Geosci. Remote Sens., 34(4), 991-999, 1996.
Ruf, C.S., K. Aydin, S.
Mathur, and J.P. Bobak, “35 GHz dual polarization propagation link for rain rate
estimation,” J. Atmos. and Oceanic Techn., 13(2),
419-425, 1996.
Ruf, C.S., “Digital
correlators for synthetic aperture interferometric radiometry,” IEEE Trans. Geosci.
Remote Sens., 33(5), 1222-1229, 1995.
Keihm, S.J. and
C.S. Ruf, “The role of water vapor radiometers for in-flight calibration of the TOPEX
Microwave Radiometer,” Marine Geodesy, 18,
139-156, 1995.
Ruf, C.S., M.A. Janssen, and
S.J. Keihm, “TOPEX/POSEIDON Microwave Radiometer (TMR): I. Instrument description and
antenna temperature calibration,” IEEE Trans. Geosci. Remote Sens., 33(1), 125-137, 1995.
Janssen,
M.A., C.S. Ruf, and S.J. Keihm, “TOPEX/POSEIDON Microwave Radiometer (TMR): II.
Antenna Pattern Correction and Brightness Temperature Algorithm,” IEEE Trans. Geosci.
Remote Sens., 33(1), 138-146, 1995.
Keihm,
S.J., M.A. Janssen, and C.S. Ruf, “TOPEX/POSEIDON
Microwave Radiometer (TMR): III. Wet tropospheric range correction and pre-launch error
budget,” IEEE Trans. Geosci. Remote Sens., 33(1),
147-161, 1995.
Ruf, C.S., S.J. Keihm, B.
Subramanya, and M.A. Janssen, “TOPEX/POSEIDON Microwave Radiometer Performance and
In-flight Calibration,” J. of Geophys. Res., 99(C12),
24915-24926, 1994.
Ruf,
C.S., “Numerical annealing of low redundancy linear arrays,” IEEE Trans.
Antennas and Propag., 41(1), 85-90, 1993.
Ruf, C.S., “Error analysis of
image reconstruction by a synthetic aperture interferometric radiometer,” Radio
Science, 26(6), 1419-1434, 1991.
Swift,
C.T., D.M. Le Vine, and C.S. Ruf, “Aperture synthesis concepts in microwave remote
sensing of the earth,” IEEE Trans. on Microwave Theory and Techniques, 39(12), 1931-1935, 1991.
Alishouse, J.C., J.B.
Snider, E.R. Westwater, C.T. Swift, C.S. Ruf, S.A. Snyder, J. Vongsathorn and R.R.
Ferraro, “Determination of cloud liquid water content using the SSM/I,” IEEE
Trans. Geosci. Remote Sens., 28(5), 817-822,
1990.
Ruf, C.S., C.T. Swift, A.B. Tanner and
D.M. Le Vine, “Interferometric synthetic aperture microwave radiometry for the remote
sensing of the earth,” IEEE Trans. Geosci. Remote Sens., 26(5), 597-611, 1988.
Ruf, C.S. and
C.T. Swift, “Atmospheric profiling of water vapor density with a 20.5-23.5 GHz
autocorrelation radiometer,” J. Atmos. and Oceanic Techn., 5(4), 539-546, 1988.
Walters, J.M., C.S. Ruf and
C.T. Swift, “A microwave radiometer weather-correcting sea ice algorithm,” J. of
Geophys. Res., 92(C6), 6521-6534, 1987.
C. RUF - PROCEEDINGS
PUBLICATIONS
Melebari, A., A. R. Silva, R. Akbar, E. Hodges, Y. Zhao, P. Nergis, D. S. McKague, C. Ruf, M. Moghaddam, “CYGNSS SoilSCAPE Sites: Sensor Calibration and Data Analysis,” Proc. 2023 International Geoscience and Remote Sensing Symposium, Pasadena, CA, USA, pp. 4628-4630, doi: 10.1109/IGARSS52108.2023.10282411, 2023.
Carreno-Luengo, H., C. S. Ruf, S. Gleason, A. Russel, “An Improved Inland Water Detector Using Standard L1 Data: Application to CYGNSS,” Proc. 2023 International Geoscience and Remote Sensing Symposium, Pasadena, CA, USA, pp. 4322-4323, doi: 10.1109/IGARSS52108.2023.10282022, 2023.
Carreno-Luengo, H., C. Ruf, S. Gleason, A. Russel, I.M. Russo, M. Di Bisceglie, C. Galdi, “In-Orbit Real Time Inland Water Detection by A Future Spaceborne GNSS-R Receiver,” Proc. 2023 International Geoscience and Remote Sensing Symposium, Pasadena, CA, USA, pp. 3724-3725, doi: 10.1109/IGARSS52108.2023.10282539, 2023.
Carreno-Luengo, H., C. Ruf, A. Warnock, “The CYGNSS Coherent End-To-End Simulator: Development and Results,” Proc. 2022 International Geoscience and Remote Sensing Symposium, Kuala Lumpur, Malaysia, doi: 10.1109/IGARSS46834.2022.9884499, July 2022.
Moller, D., M. Wilson, R. Datta, A. O'Brien, R. Linnabary, C. Ruf, “Rongowai: A Pathfinder NASA/NZ GNSS-R Initiative Supporting SDG-15 - Life on Land,” Proc. 2022 International Geoscience and Remote Sensing Symposium, Kuala Lumpur, Malaysia, doi: 10.1109/IGARSS46834.2022.9884397, July 2022.
Ruf, C., C. Chew, M. Moghaddam, D. Posselt, Z. Pu, “Science Impacts of the NASA CYGNSS Mission,” Proc. 2022 International Geoscience and Remote Sensing Symposium, Kuala Lumpur, Malaysia, doi: 10.1109/IGARSS46834.2022.9884129, July 2022.
Carreno-Luengo, H., C. Ruf, “Triggering Freeze/Thaw Surface State Monitoring from High Inclination Orbit GNSS-R Missions: A CYGNSS-Based Study,” Proc. 2022 International Geoscience and Remote Sensing Symposium, Kuala Lumpur, Malaysia, doi: 10.1109/IGARSS46834.2022.9883093, July 2022.
Lin, X., D. Moller, A. O'Brien, R. Linnabary, C. Ruf, “Computing Specular Points over Complex Land Surfaces for Airborne GNSS-R Applications,” Proc. 2022 International Geoscience and Remote Sensing Symposium, Kuala Lumpur, Malaysia, doi: 10.1109/IGARSS46834.2022.9884398, July 2022.
Ruf. C., C. Chew, C. Gerlein-Safdi, A. Warnock, “Resolving Inland Waterways with CYGNSS,” Proc. 2021 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS47720.2021.9554192, July 2021.
Campbell, J., R. Akbar, A. Azemati, A. Bringer, D. Comite, L. Dente, S. Gleason, L. Guerriero, E. Hodges, J. Johnson, S. Kim, A. Melebari, N. Pierdicca, B. Ren, C. Ruf, L. Tsang, H. Xu, J. Zhu, M. Moghaddam, “Intercomparison of Models for CYGNSS Delay-Doppler Maps at a Validation Site in the San Luis Valley of Colorado,” Proc. 2021 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS47720.2021.9553296, July 2021.
Wang, T., C. Ruf, A. O’Brien, S. Gleason, D. McKague, A. Russel, “The Important Role of Antenna Pattern Characterization in the Absolute Calibration of GNSS-R Measurements,” Proc. 2021 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS47720.2021.9554506, July 2021.
Balasubramaniam, R., M. Vahdat, C. Ruf, “Observing Freeze-Thaw Transitions Over Land Using CYGNSS Measurements,” Proc. 2021 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS47720.2021.9554980, July 2021.
Carreno-Luengo, H., C. Ruf, “Freeze/Thaw Retrieval over High Altitude Areas with CYGNSS,” Proc. 2021 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS47720.2021.9553238, July 2021.
Carreno-Luengo, H., C. Ruf, S. Gleason, A. Russel, T. Butler, “Generation of a New High Resolution DDM Data Product from CYGNSS Raw IF Measurements,” Proc. 2021 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS47720.2021.9554828, July 2021.
Bringer, A., J. Johnson, C. Toth, C. Ruf, M. Moghaddam, “Studies of Terrain Surface Roughness and Its Effect in GNSS-R Systems Using Airborne Lidar Measurements,” Proc. 2021 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS47720.2021.9554919, July 2021.
Moller, D., C. Ruf, R. Linnabury, A. O'Brien, S. Musko, “Operational Airborne GNSS-R Aboard Air New Zealand Domestic Aircraft,” Proc. 2021 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS47720.2021.9553159, July 2021.
Wang, T., V. Zavorotny, J. Johnson, Y. Yi, C. Ruf, S. Gleason, D. McKague, P. Hwang, E. Rogers, S. Chen, Y. Pan, T. Bakker, “Improvement of CYGNSS Level 1 Calibration Using Modeling and Measurements of Ocean Surface Mean Square Slope,” Proc. 2020 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS39084.2020.9323262, Oct 2020.
Ruf. C., R. Backhus, T. Butler, C. Chen, S. Gleason, E. Loria, D. McKague, R. Miller, A. O'Brien, L. van Nieuwstadt, “Next Generation GNSS-R Instrument,” Proc. 2020 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS39084.2020.9324588, Oct 2020.
Carreno-Luengo, H., C. Ruf, A. Warnock, K. Brunner, “Investigating the Impact of Coherent and Incoherent Scattering Terms in GNSS-R Delay Doppler Maps,” Proc. 2020 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS39084.2020.9324404, Oct 2020.
Linnabary, R., A. O'Brien, C. Ruf, S. Musko, D. Moller, “Analysis of Gnss-R Coverage by a Regional Aircraft Fleet,” Proc. 2020 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS39084.2020.9323175, Oct 2020.
Carreno-Luengo, H., et al., “The GRSS Standard for GNSS-Reflectometry,” Proc. 2020 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS39084.2020.9323222, Oct 2020.
Wang, T., C. Ruf, S. Gleason, D. McKague, A. O'Brien, B. Block, “Monitoring GPS EIRP for CYGNSS Level 1 Calibration,” Proc. 2020 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS39084.2020.9324491, Oct 2020.
Balasubramaniam, R., C. Ruf, “Performance Assessment of CYGNSS High Wind Retrieval for the Improved EIRP Calibration,” Proc. 2020 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS39084.2020.9323743, Oct 2020.
Akbar, R. J. Campbell, A. Silva, R. Chen, E. Hodges, D. Entekhabi, C. Ruf, M. Moghaddam, “Soilscape Wireless In Situ Networks in Support of Cygnss Land Applications,” Proc. 2020 International Geoscience and Remote Sensing Symposium, virtual, doi: 10.1109/IGARSS39084.2020.9324648, Oct 2020.
Wang, T., C. Ruf, S. Gleason, B. Block, D. McKague, A. O’Brien, “A Real-Time EIRP Level 1 Calibration Algorithm for the CYGNSS Mission Using the Zenith Measurements,” Proc. 2019 International Geoscience and Remote Sensing Symposium, Yokohama, JAPAN, doi: 10.1109/IGARSS.2019.8900456, July 2019.
McKague, D., C. Ruf, “On-Orbit Trending of CYGNSS Data,” Proc. 2019 International Geoscience and Remote Sensing Symposium, Yokohama, JAPAN, doi: 10.1109/IGARSS.2019.8898395, July 2019.
Wang, T., V. Zavorotny, J. Johnson, Y. Yi, C. Ruf, , “Integration of CYGNSS Wind and Wave Observations with the Wavewatch III Numerical Model,” Proc. 2019 International Geoscience and Remote Sensing Symposium, Yokohama, JAPAN, doi: 10.1109/IGARSS.2019.8900481, July 2019.
Mayers, D., C.Ruf, “Determining Tropical Cyclone Center Location with CYGNSS Wind Speed Measurements,” Proc. 2019 International Geoscience and Remote Sensing Symposium, Yokohama, JAPAN, doi: 10.1109/IGARSS.2019.8900346, July 2019.
Balasubramaniam, R., C. Ruf, “The Impact Of Rain On L1 GNSS-R Radar Scattering Cross-Section,” Proc. 2019 International Geoscience and Remote Sensing Symposium, Yokohama, JAPAN, doi: 10.1109/IGARSS.2019.8900302:, July 2019.
Ruf, C., D. McKague, M. Morris, D. Posselt, M. Moghaddam, “The GNSS-R CYGNSS Mission: An Update,” Proc. 2019 International Geoscience and Remote Sensing Symposium, Yokohama, JAPAN, doi: 10.1109/IGARSS.2019.8900604, July 2019.
Ruf, C., D. McKague, S. Gleason, “CYGNSS SmallSat Mission Design, Engineering Performance and Science Results,” Proc. 2019 International Geoscience and Remote Sensing Symposium, Yokohama, JAPAN, doi: 10.1109/IGARSS.2019.8900271, July 2019.
Ruf, C., C. Bussy-Virat, D. McKague, A. Ridley, M. Morris, "Enabling Sampling Properties of the CYGNSS Satellite Constellation," Proc. 2018 International Geoscience and Remote Sensing Symposium, Valencia, SPAIN, doi: 10.1109/IGARSS.2018.8518454, pp. 277-280, July 2018.
T. Wang, C. Ruf, B. Block, D. McKague, "Characterization of the Transmit Power and Antenna Pattern of the GPS Constellation for the CYGNSS Mission," Proc. 2018 International Geoscience and Remote Sensing Symposium, Valencia, SPAIN, doi: 10.1109/IGARSS.2018.8518531, pp. 4011-4014, July 2018..
T. Wang, V. U. Zavorotny, J. Johnson, C. Ruf, Y. Yi, "Modeling of Sea State Conditions for Improvement of CYGNSS L2 Wind Speed Retrievals," Proc. 2018 International Geoscience and Remote Sensing Symposium, Valencia, SPAIN, doi: 10.1109/IGARSS.2018.8518686, pp. 8288-8291, July 2018..
D. Mayers, C. S. Ruf, "Measuring Ice Thickness with CYGNSS Altimetry," Proc. 2018 International Geoscience and Remote Sensing Symposium, Valencia, SPAIN, doi: 10.1109/IGARSS.2018.8519310, pp. 8535-8538, July 2018..
Balasubramaniam, R., C. S. Ruf, "Improved Calibration of CYGNSS Measurements for Downbursts in the Intertropical Convergence Zone," Proc. 2018 International Geoscience and Remote Sensing Symposium, Valencia, SPAIN, doi: 10.1109/IGARSS.2018.8517571, pp. 3987-3990, July 2018..
Balasubramaniam, R., C. S. Ruf, D. McKague, M. P. Clarizia, S. Gleason, “Calibration and Validation Processing for the CYGNSS Wind Speed Retrieval Algorithm,” Proc. 2017 International Geoscience and Remote Sensing Symposium, Houston, TX, doi: 10.1109/IGARSS.2017.8127906, pp. 4117 - 4120, July 2017.
Clarizia, M. P., C. S. Ruf, S. Gleason, R. Balasubramaniam and D. McKague, “Generation of CYGNSS Level 2 Wind Speed Data Products,” Proc. 2017 International Geoscience and Remote Sensing Symposium, Houston, TX, doi: 10.1109/IGARSS.2017.8127539, pp. 2647 - 2649, July 2017.
Gleason, S., C. Ruf, M. P. Clarizia, J. Johnson, A. O’Brien, P. Chang, Z. Jelenek, F. Said, S. Soisuvarn, “Calibration and Validation of the CYGNSS Level 1 Data Products,” Proc. 2017 International Geoscience and Remote Sensing Symposium, Houston, TX, doi: 10.1109/IGARSS.2017.8127538, pp. 2644 - 2646, July 2017.
McKague, D. S., and C. S. Ruf, “CYGNSS Constellation Intercalibration,” Proc. 2017 International Geoscience and Remote Sensing Symposium, Houston, TX, doi: 10.1109/IGARSS.2017.8127541, pp. 2654 - 2656, July 2017.
Wang, T., C. Ruf, S. Gleason, B. Block, D. McKague, D. Provost, “Development of GPS Constellation Power Monitor System for High Accuracy Calibration/Validation of the CYGNSS L1B Data,” Proc. 2017 International Geoscience and Remote Sensing Symposium, Houston, TX, doi: 10.1109/IGARSS.2017.8127125, pp. 1008 - 1011, July 2017.
Ruf, C. S., S. Gleason, A. Ridley, R. Rose, J. Scherrer, “The NASA CYGNSS Mission: Overview and Status Update,” Proc. 2017 International Geoscience and Remote Sensing Symposium, Houston, TX, doi: 10.1109/IGARSS.2017.8127537, pp. 2641 - 2643, July 2017.
Warnock, A. M., C. S. Ruf and M. Morris, “Storm Surge Predictions with CYGNSS Winds,” Proc. 2017 International Geoscience and Remote Sensing Symposium, Houston, TX, doi: 10.1109/IGARSS.2017.8127624, pp. 2975 - 2978, July 2017.
Yang, J. X., D. S. McKague, C. S. Ruf, H.Yang and F. Weng, “Examining GMI intercalibration dependence on the full dynamic range of brightness temperature using cold and warm end tie points,” Proc. 2016 International Geoscience and Remote Sensing Symposium, Beijing, CHINA, doi: 10.1109/IGARSS.2016.7729219, pp. 864 - 867, July 2016.
Morris, M., D. D. Chen and C. S. Ruf, “Earth antenna temperature variability for CYGNSS,” Proc. 2016 International Geoscience and Remote Sensing Symposium, Beijing, CHINA, doi: 10.1109/IGARSS.2016.7729214, pp. 846 - 849, July 2016.
Lambrigtsen, B., T. Gaier, P. Kangaslahti, B. Lim, A. Tanner and C. Ruf, “Enabling the NASA decadal-survey “PATH” mission,” Proc. 2016 International Geoscience and Remote Sensing Symposium, Beijing, CHINA, doi: 10.1109/IGARSS.2016.7730026, pp. 3949 - 3951, July 2016.
Gaier, T., P. Kangaslahti, B. Lambrigtsen, I. Ramos-Perez, A. Tanner; D. McKague, C. Ruf, M. Flynn, Z. Zhang, R. Backhus and D. Austerberry, “A 180 GHz prototype for a geostationary microwave imager/sounder-GeoSTAR-III,” Proc. 2016 International Geoscience and Remote Sensing Symposium, Beijing, CHINA, doi: 10.1109/IGARSS.2016.7729521, pp. 2021 - 2023, July 2016.
Clarizia, M.-P., C.S. Ruf, P. Braca, P. Willet, “Target Detection Using GPS Signals of Opportunity,” 18th Intl. Conf. Information on Fusion, Washington DC, 6-9 July 2015.
Gleason, S., C. Ruf, “Overview of the Delay Doppler Mapping Instrument (DDMI) for the Cyclone Global Navigation Satellite Systems Mission (CYGNSS),” Proc. 2015 International Microwave Symposium, Phoenix, AZ, 17-22 May 2015.
Reising, S., T. Gaier, C. Kummerow, V. Chandrasekar, S. Brown, S. Padmanabhan, B. Lim, S. van den Heever, T. L’Ecuyer, C. Ruf, Z. Haddad, Z. Luo, S. Munchak, G. Berg, T. Koch, S. Boukabara, “Overview of Temporal Experiment for Storms and Tropical Systems (TEMPEST) CubeSat Constellation Mission,” Proc. 2015 International Microwave Symposium, Phoenix, AZ, 17-22 May 2015.
Rose, R., C. Ruf, J. Scherrer, J. Wells, “The CYGNSS Flight Segment; Mainstream Science on a Micro-Budget,” Proc. 2015 IEEE Aerospace Conf., Big Sky, MT, 7-14 Mar 2015.
Fritz, M., J. Shoer, L. Singh, T. Henderson, J. McGee, R. Rose, C. Ruf, “Attitude Determination and Control System Design for the CYGNSS MicroSatellite,” Proc. 2015 IEEE Aerospace Conf., Big Sky, MT, 7-14 Mar 2015.
Chen, D. D., and C. Ruf, “A Novel Method to Estimate the RFI Environment,” Proc. 2014 International Geoscience and Remote Sensing Symposium, Québec City, CANADA, doi: , 14-18 July 2014.
Ruf, C., P. Chang, M. P. Clarizia, Z. Jelenak, A. Ridley, R. Rose, “CYGNSS: NASA Earth Venture Tropical Cyclone Mission”, Proc. SPIE, Bellingham, WA, Vol. 9241, 924109, 2014.
Rose, R., S. Gleason, C. Ruf, The NASA CYGNSS mission: a pathfinder for GNSS scatterometry remote sensing applications”, Proc. SPIE, Bellingham, WA, Vol. 9240, 924005, 2014.
Miller, S.A., R.L. Killough, S.W. Cook, and C. Ruf., “Onboard Science Processing on a Microsatellite with Limited Resources,” Proc. 2014 IEEE Aerospace Conf., Big Sky, MT, Mar 2014.
Finley, T., D. Rose, K. Nave, W. Wells, J. Redfern, R. Rose and C. Ruf, “Techniques for LEO Constellation Deployment and Phasing Utilizing Differential Aerodynamic Drag,” Proc. AAS/AIAA Astrodynamics Specialist Conf., v150, pp1397-1411, ISBN: 978-087703605-0, Hilton Head, SC, Aug 2013.
Kroodsma, R., D. McKague and C. S. Ruf, “Effect of Microwave Radiometer Inter-Calibration,” Proc. 2013 International Geoscience and Remote Sensing Symposium, Melbourne, AUSTRALIA, 22-26 July 2013.
Miller, T., M. James, J. Roberts, S. Biswas, D. Cecil, W. L. Jones, J. Johnson, S. Farrar, S. Sahawneh, C. S. Ruf, M. Morris, E. Uhlhorn and P. Black, “The Hurricane Imaging Radiometer: Present and Future,” Proc. 2013 International Geoscience and Remote Sensing Symposium, Melbourne, AUSTRALIA, 22-26 July 2013.
Ruf, C. S., S. Gleason, Z. Jelenak, S. Katzberg, A. Ridley, R. Rose, J. Scherrer and V. Zavorotny, “The NASA EV-2 Cyclone Global Navigation Satellite System (CYGNSS) Mission,” Proc. 2013 IEEE Aerospace Conf., Big Sky, MT, doi: 10.1109/AERO.2013.6497202, 2-9 Mar 2013.
Rose, R., C. Ruf, D. Rose, M. Brummitt and A., Ridley, “The CYGNSS Flight Segment; A Major NASA Science Mission Enabled by Micro-Satellite Technology,” Proc. 2013 IEEE Aerospace Conf., Big Sky, MT, 2-9 Mar 2013.
Rose, D., R. Rose and C. Ruf, “The CYGNSS Ground Segment; Innovative Mission Operations Concepts to Support a Micro-Satellite Constellation,” Proc. 2013 IEEE Aerospace Conf., Big Sky, MT, doi: 10.1109/AERO.2013.6497320, 2-9 Mar 2013.
Unwin, M., P. Jales, P. Blunt, S. Duncan, M. Brummitt, C. Ruf, “The SGR-ReSI and its Application for GNSS Reflectometry on the NASA EV-2 CYGNSS Mission,” Proc. 2013 IEEE Aerospace Conf., Big Sky, MT, doi: 10.1109/AERO.2013.6497151, 2-9 Mar 2013.
Dickinson, J. R., J. L. Alvarez, R. J. Rose, C. S. Ruf, B. J. Walls,” Proc. 2013 IEEE Aerospace Conf., Big Sky, MT, 2-9 Mar 2013.
Ruf, C., J. B. Roberts, S. Biswas, M. James and T. Miller, “Calibration and Image Reconstruction for the Hurricane Imaging Radiometer (HIRAD),” Proc. 2012 International Geoscience and Remote Sensing Symposium, Munich, GERMANY, pp. 4641-4643, 23-27 July 2012.
Chen, D. D., S. Gleason, C. Ruf and M. Adjrad, “Spectral Dependence of the Response Time of Sea State to Local Wind Forcing,” Proc. 2012 International Geoscience and Remote Sensing Symposium, Munich, GERMANY, pp. 3776-3779, 23-27 July 2012.
Ruf, C., D. Chen, D. Le Vine, P. de Matthaeis and J Piepmeier, “Aquarius Radiometer RFI Detection, Mitigation and Impact Assessment,” Proc. 2012 International Geoscience and Remote Sensing Symposium, Munich, GERMANY, pp. 3312-3315, 23-27 July 2012.
Kroodsma, R., D. McKague and C. Ruf, “Satellite Attitude Analysis Using the Vicarious Cold Calibration Method for Microwave Radiometers,” Proc. 2012 International Geoscience and Remote Sensing Symposium, Munich, GERMANY, pp. 2964-2967, 23-27 July 2012.
Mims, A., and C. Ruf, “Aquarius Engineering Phase On-Orbit TA Calibration,” Proc. 2012 International Geoscience and Remote Sensing Symposium, Munich, GERMANY, pp. 2960-2963, 23-27 July 2012.
Ruf, C. S., S. Gleason, Z. Jelenak, S. Katzberg, A. Ridley, R. Rose, J. Scherrer and V. Zavorotny, “The CYGNSS Nanosatellite Constellation Hurricane Mission,” Proc. 2012 International Geoscience and Remote Sensing Symposium, Munich, GERMANY, pp. 214-216, 23-27 July 2012.
Renno, N. O., C. Ruf, T. Gaier, T., “A Passive Instrument to Search for Brines in the Shallow Martian Subsurface,” Concepts and Approaches for Mars Exploration, 12-14 June 2012, Houston, TX, LPI Contribution No. 1679, id.4121, 2012.
Le Vine, D.M., G.S.E. Lagerloef, C. Ruf, F. Wentz, S. Yueh, J. Piepmeier, E. Lindstrom and E. Dinnat, “Aquarius: The instrument and initial results,” Microwave Radiometry and Remote Sensing of the Environment (MicroRad) 2012, DOI: 10.1109/MicroRad.2012.6185226, pp. 1-3, 2012.
Gaier, T., B. Lambrigtsen, P. Kangaslahti, B. Lim, A. Tanner, D. Harding, H. Owen, M. Soria, I. O’Dwyer, C. Ruf , R. Miller, B. Block, M. Flynn and S. Whitaker, “GeoSTAR-II: A Prototype Water Vapor Imager/Sounder for The Path Mission,” Proc. 2011 International Geoscience and Remote Sensing Symposium, Vancouver, BC, CANADA, pp. 3626-3628, 25-29 July 2011.
Wilheit, T., W. Berg, L. Jones, R. Kroodsma, D. McKague, C. Ruf and M. Sapiano, “A Consensus Calibration Based on TMI and WindSat,” Proc. 2011 International Geoscience and Remote Sensing Symposium, Vancouver, BC, CANADA, pp. 2641-2644, 25-29 July 2011.
Kroodsma, R., D. McKague and C. Ruf, “Robustness of the Vicarious Cold Calibration Algorithm in the Double Difference Method for GPM Inter-Calibration,” Proc. 2011 International Geoscience and Remote Sensing Symposium, Vancouver, BC, CANADA, pp. 2233-2236, 25-29 July 2011.
Amarin, R., W. L. Jones, J. Johnson, C. Ruf, T. Miller, E. Uhlhorn, “The Hurricane Imaging Radiometer Wide Swath Simulation and Wind Speed Retrievals,” Proc. 2010 International Geoscience and Remote Sensing Symposium, Honolulu, HI, USA, pp. 4290-4293, 25 July 2010.
Curry, S., M. Ahlers, H. Elliot, S. Gross, D. McKague, S. Misra, J. Puckett, C. Ruf, “K-Band Radio Frequency Interference Survey of Southeastern Michigan,” Proc. 2010 International Geoscience and Remote Sensing Symposium, Honolulu, HI, USA, pp. 2486-2489, 25 July 2010.
Fenigstein, D., C. Ruf, M. James, D. Simmons, T. Miller, C. Buckley, “Analysis of Anechoic Chamber Testing of the Hurricane Imaging Radiometer,” Proc. 2010 International Geoscience and Remote Sensing Symposium, Honolulu, HI, USA, pp. 550-553, 25 July 2010.
Kroodsma, R., D. McKague, J. Puckett and C. Ruf, “Stability of yhe Vicarious Cold Calibration Statistic for the GPM Constellation,” Proc. 2010 International Geoscience and Remote Sensing Symposium, Honolulu, HI, USA, pp. 566-569, 25 July 2010.
McKague, D., J. Puckett and C. Ruf, “Characterization of K-Band Radio Frequency Interference from AMSR-E, WindSat and SSM/I,” Proc. 2010 International Geoscience and Remote Sensing Symposium, Honolulu, HI, USA, pp. 2492-2494, 25 July 2010.
Mims, A., R. Kroodsma, C. Ruf and D. McKague, “Windsat Retrieval of Ocean Surface Wind Speeds in Tropical Cyclones,” Proc. 2010 International Geoscience and Remote Sensing Symposium, Honolulu, HI, USA, pp. 1831-1834, 25 July 2010.
Misra, S., R. De Roo and C. Ruf, “Evaluation of the Kurtosis Algorithm in Detecting Radio Frequency Interference from Multiple Sources,” Proc. 2010 International Geoscience and Remote Sensing Symposium, Honolulu, HI, USA, pp. 2019-2022, 25 July 2010.
Amarin, R.A., L. Jones, J. Johnson, C. Ruf, T. Miller and S. Chen, “Hurricane imaging radiometer wind speed and rain rate retrieval: Part-2. Analysis of retrieval accuracy,” Proc. 11th Specialist Meeting on Microwave Radiometry, pp. 200-204, doi: 10.1109/MICRORAD.2010.5559560, 2010.
El-Nimri, S.F., L. Jones, E. Uhlhorn, C. Ruf and P. Black, “Hurricane Imaging Radiometer wind speed and rain rate retrieval: Part-1. development of an improved ocean emissivity model,” Proc. 11th Specialist Meeting on Microwave Radiometry, pp. 116-120, doi: 10.1109/MICRORAD.2010.5559579, 2010.
Ruf, C., and S. Gross, “Digital Radiometers for Earth Science,” Proc. 2010 International Microwave Symposium, Anaheim, CA, USA, 22-28 May 2010.
Misra, S., and C. Ruf, “Inversion Algorithm for Estimating Radio Frequency Interference Characteristics Based on Kurtosis Measurements,” Proc. 2009 IEEE International Geoscience and Remote Sensing Symposium, Cape Town, S.A., Vol. II, 162-165, 13-17 July 2009.
McKague, D., C. Ruf and J.J. Puckett, “Microwave Radiometer Inter-Calibration Using the Vicarious Calibration Method,” Proc. 2009 IEEE International Geoscience and Remote Sensing Symposium, Cape Town, S.A., Vol. IV, 117-120, 13-17 July 2009.
Amarin, R., B. Lim, J. Johnson, W.L. Jones and C. Ruf, “Performance Simulations For A Synthetic Aperture Radiometer Measuring Peak Surface Wind Speed In Hurricanes,” Proc. 2008 IEEE International Geoscience and Remote Sensing Symposium, Boston, MA, Vol. I, 363-366, 7-11 July 2008.
Lim, B., C. Ruf and A. Tanner, “A High Resolution Full Earth Disk Model for Microwave Observations From GEO,” Proc. 2008 IEEE International Geoscience and Remote Sensing Symposium, Boston, MA, Vol. III, 923-926, 7-11 July 2008.
McKague, D., C. Ruf and J. Puckett, “Vicarious Calibration of Global Precipitation Measurement Microwave Radiometers,” Proc. 2008 IEEE International Geoscience and Remote Sensing Symposium, Boston, MA, Vol. IV, 459-462, 7-11 July 2008.
Misra, S., and C. Ruf, “Comparison of Pulsed Sinusoid Radio Frequency Interference Detection Algorithms Using Time and Frequency Sub-Sampling,” Proc. 2008 IEEE International Geoscience and Remote Sensing Symposium, Boston, MA, Vo. II, 153-156, 7-11 July 2008.
Misra, S., C. Ruf and R. Kroodsma, “Detectability of Radio Frequency Interference due to Spread Spectrum Communication Signals using The Kurtosis Algorithm,” Proc. 2008 IEEE International Geoscience and Remote Sensing Symposium, Boston, MA, Vol. II, 335-338, 7-11 July 2008.
Amarin, R., C. S. Ruf, L. Jones and S. S.
Chen,“Improved microwave radiometric imaging of surface wind speed dynamics in the
hurricane eye-wall,” Proc.
28th Conf. on Hurricanes and Tropical Meteo., Orlando, FL, 28 Apr-2 May 2008.
El-Nimri, S., S. Al-Sweiss, R. Amarin, W. L. Jones and
C. S. Ruf,“Improved microwave remote sensing of hurricane wind speed and rain rates
using the Hurricane Imaging Radiometer (HIRAD),” Proc.
28th Conf. on Hurricanes and Tropical Meteo., Orlando, FL, 28 Apr-2 May 2008.
Ruf, C. S., A. M. Mims and C. C. Hennon,“The
dependence of the microwave emissivity of the ocean on hurricane force wind speed,” Proc.
28th Conf. on Hurricanes and Tropical Meteo., Orlando, FL, 28 Apr-2 May 2008.
Amarin, R.A., S.F. El-Nimri, J.W. Johnson, W.L. Jones,
B.H. Lim and C.S. Ruf, “Instrument design simulations for synthetic aperture
microwave radiometric imaging of wind speed and rain rate in hurricanes,” Proc.
2007 IEEE International Geoscience and Remote Sensing Symposium, Barcelona, SPAIN, 23-27
July, 2007.
Brown, S., S. Desai, S. Keihm, W. Lu and C. Ruf,
“Ocean Water Vapor and Cloud Burden Trends Derived from the TOPEX Microwave
Radiometer, Proc.
2007 IEEE International Geoscience and Remote Sensing Symposium, Barcelona, SPAIN, 23-27
July, 2007.
De Roo, R.D., C.S. Ruf and K. Sabet, “An L-band
Radio Frequency Interference (RFI) Detection and Mitigation Testbed for Microwave
Radiometry,” Proc.
2007 IEEE International Geoscience and Remote Sensing Symposium, Barcelona, SPAIN, 23-27
July, 2007.
De Roo, R.D., S. Misra and C.S. Ruf, “Sensitivity
of the Kurtosis Statistic as a Detector of Pulsed Sinusoidal Radio Frequency Interference
in a Microwave Radiometer Receiver,” Proc.
2007 IEEE International Geoscience and Remote Sensing Symposium, Barcelona, SPAIN, 23-27
July, 2007.
Lim,
B.H., R. Amarin, S. El-Nimri, J. Johnson, L. Jones and C.S. Ruf, “Restrictions on the
Field of View for an Undersampled 1-D Synthetic Thinned Aperture Radiometry,” Proc.
2007 IEEE International Geoscience and Remote Sensing Symposium, Barcelona, SPAIN, 23-27
July, 2007.
Peng, J., C.S. Ruf, S. Brown and J. Piepmeier,
“Characterization of the Aquarius and Juno Radiometers Using a Programmable Digital
Noise Source,” Proc.
2007 IEEE International Geoscience and Remote Sensing Symposium, Barcelona, SPAIN, 23-27
July, 2007.
Ruf, C.S., and S. Misra, “Detection of Radio
Frequency Interference with the Aquarius Radiometer” Proc.
2007 IEEE International Geoscience and Remote Sensing Symposium, Barcelona, SPAIN, 23-27
July, 2007.
Ruf,
C., R. Amarin, M.C. Bailey, B. Lim, R. Hood, M. James, J. Johnson, L. Jones, V. Rohwedder
and K. Stephens, “The Hurricane Imaging Radiometer – An Octave Bandwidth
Synthetic Thinned Array Radiometer,” Proc.
2007 IEEE International Geoscience and Remote Sensing Symposium, Barcelona, SPAIN, 23-27
July, 200.
Tanner, A.B., S.T. Tanner, T.C.
Gaier, B.H. Lambrigtsen, B.H. Lim and C.S. Ruf, “Field tests of the GeoSTAR
demonstrator instrument,” Proc.
2007 IEEE International Geoscience and Remote Sensing Symposium, Barcelona, SPAIN, 23-27
July, 2007.
Ruf, C., S. Misra, S. Gross and R. De
Roo, “Detection
of RFI by its Amplitude Probability Distribution,”
Proc. 2006 IEEE International Geoscience and Remote Sensing Symposium, Denver, CO, 31 Jul
-4
Aug 2006.
Lim,
B.H. and C.S. Ruf, “Calibration of a Fully Polarimetric Microwave Radiometer
Using a Digital Polarimetric Noise Source,”
Proc. 2006 IEEE International Geoscience and Remote Sensing Symposium, Denver, CO, 31 Jul
-4
Aug 2006.
Tanner, A.B., W.J. Wilson, B.H.
Lambrigtsen, S.J. Dinardo, S.T. Brown, P. Kangaslahti, T.C. Gaier, C.S. Ruf, S.M. Gross,
B.H. Lim, S. Musko and S. Rogacki, “Initial Results of the Geosynchronous Thinned
Array Radiometer (GeoSTAR),” Proc. 2006 IEEE International Geoscience and Remote
Sensing Symposium, Denver, CO, 31 Jul - 4 Aug 2006.
Brown, S., S. Desai, S. Keihm and C. Ruf, “JMR
Noise Diode Stability After Three Years On-Orbit and Recalibration Methodology,” 2006
Specialist Meeting on Microwave Radiometry, San
Juan,
PR, 28 Feb – 3 Mar 2006.
Tanner, A.B., B. H.
Lambrigsten, S. T. Brown, W. J. Wilson, J.R.Piepmeier, C.S. Ruf and B. Lim, “A
Prototype Geostationary Synthetic Thinned Aperture Radiometer (GeoSTAR) for Atmospheric
Temperature Sounding,” 2006
Specialist Meeting on Microwave Radiometry, San Juan, PR, 28 Feb – 3 Mar 2006.
De Roo, R., C. Ruf, B.
Lim, L. van Nieuwstadt, C. Wineland and R. Gandhi, “L-band and K-band Correlated Noise Calibration System
(CNCS) Architecture,” 2006
Specialist Meeting on Microwave Radiometry, San Juan, PR, 28 Feb – 3 Mar 2006.
Misra,
S., C.S. Ruf and R. DeRoo, “Agile Digital Detector for RFI Mitigation,” 2006 Specialist
Meeting on Microwave Radiometry, San
Juan
,
PR, 28 Feb – 3 Mar 2006.
Hilliard,
L.M., N.L. Phelps, J.T. Riley, T.M. Markus, G.L. Bland, C.S. Ruf, R.W. Lawrence, S.C.
Reising and R Pichel, “Prototype
Cryospheric Experimental Synthetic Aperture Radiometer (CESAR),” Proc. 2005 IEEE
International Geoscience and Remote Sensing Symposium, Seoul, KOREA, Vol. VII, 4925-4928,
25-29 July 2005.
Ruf,
C.S., “Ensemble Scattering and RFI Speckle Caused by Collision Avoidance Radar,”
Proc. URSI National Radio Science Meeting, Boulder, CO, F/J1-7, 215, 5-8 Jan
2005.
Bastian,
T.S., R. Fisher, R. Bradley, D. Gary, G. Huford, S. White, A. Kerdraon, C. Ruf, “Low
Frequency Solar Physics with the Frequency Agile Solar Radiotelescope,” Proc. URSI
National Radio Science Meeting, Boulder, CO, J5-6, 446, 5-8 Jan 2005.
Renno,
N., C. Ruf, L. Thompson, M. Sander and T. Linick, “ENG 450: A Multidisciplinary
Design Experience,” Proc. AIAA Space 2004 Conference, San Diego, CA,
AIAA-2004-5924,
28-30
Sept. 2004.
Ruf,
C.S., S.T. Brown, S.T., Y. Hu and H. Kawakubo, “WindSat
Calibration and Geophysical Parameter Estimation,” Proc. 2004 IEEE International
Geoscience and Remote Sensing Symposium, Anchorage,
AK,
Vol. I, 379-382, 20-24 Sept. 2004.
Brown,
S.T. and C.S. Ruf, “Simultaneous
Retrieval of Surface Wind Speed and Rain Rate using Radar and Radiometer
Measurements,” Proc. 2004 IEEE International Geoscience and Remote Sensing Symposium,
Anchorage, AK, Vol. II, 1252-1255, 20-24 Sept. 2004.
Wilson,
W.J., A.B. Tanner, B.H. Lambrigtsen, T.A. Doiron, J.R. Piepmeier and C.S. Ruf, “STAR
Concept for Passive Microwave Temperature Sounding from Middle Earth Orbit
(MeoSTAR),” Proc. 2004 IEEE International Geoscience and Remote Sensing Symposium,
Anchorage, AK, Vol. II, 789-790, 20-24 Sept. 2004.
Tanner,
A., W.J. Wilson, P.P Kangaslahti, B.H. Lambrigtsen, S.J. Dinardo, J.R. Piepmeier, C.S.
Ruf, S. Rogacki, S.M. Gross and S. Musko, “Prototype
development of a Geostationary Synthetic Thinned Aperture Radiometer, GeoSTAR,” Proc.
2004 IEEE International Geoscience and Remote Sensing Symposium, Anchorage, AK, Vol. II,
1256-1259, 20-24 Sept. 2004.
Lambrigtsen,
B., W. Wilson, A. Tanner, T. Gaier, C. Ruf and J. Piepmeier, “GeoSTAR
– A Microwave Sounder for Geostationary Satellites,” Proc. 2004 IEEE
International Geoscience and Remote Sensing Symposium, Anchorage, AK, Vol. II, 777-780,
20-24 Sept. 2004.
Ruf,
C. and C. Principe, “X-Band
Lightweight Rainfall Radiometer First Light,”
Proc. of the 2003 IEEE International Geoscience and Remote Sensing Symposium, Toulouse,
FRANCE, ISBN 0-7803-7930-6, IEEE Cat. #03CH37477C, 21-25 July 2003.
Brown,
S.
and C. Ruf, “Using the Amazon
Rainforest as a Blackbody Reference for the On-orbit Calibration of Microwave Radiometers,”
Proc. of the 2003 IEEE International Geoscience and Remote Sensing Symposium, Toulouse,
FRANCE, ISBN 0-7803-7930-6, IEEE Cat. #03CH37477C, 21-25 July 2003.
Brown,
S.,
C. Ruf, S. Keihm and A. Kitiyakara,
“Jason
Microwave Radiometer On Orbit Calibration, Validation and Performance”
Proc. of the 2003 IEEE International Geoscience and Remote Sensing Symposium, Toulouse,
FRANCE, ISBN 0-7803-7930-6, IEEE Cat. #03CH37477C, 21-25 July 2003.
Lindström, S. and C.
Ruf,
“WindSat
SDR and EDR On Orbit Calibration and Validation,”
Proc. of the 2003 IEEE International Geoscience and Remote Sensing Symposium, Toulouse,
FRANCE, ISBN 0-7803-7930-6, IEEE Cat. #03CH37477C, 21-25 July 2003.
Tran,
N. E. Obligis, L. Eymard and C. Ruf,
“Comparison of Microwave Radiometer Brightness Temperature over a Hot Reference
Area.,” Proc. of the 2003 IEEE International Geoscience and Remote Sensing Symposium,
Toulouse, FRANCE, ISBN 0-7803-7930-6, IEEE Cat. #03CH37477C, 21-25 July 2003, 2003.
Principe,
C. and C.S. Ruf, “Calibration Methodology for Lightweight Rainfall Radiometer STAR
Aircraft Sensor,” Proc. of the Second International Microwave Radiometer Calibration
Workshop, Barcelona, Spain, 9-11 Oct 2002.
Ruf,
C.S. and J. Li, “Evaluation of Correlation Radiometers using Programmable Correlated
Noise,” Proc. Second International Microwave Radiometer Calibration Workshop,
Barcelona, Spain, 9-11 Oct 2002.
Ruf,
C.S., S.J. Keihm and S.T. Brown,
“Early On Orbit Performance of the Jason-1 Microwave Radiometer,” Proc. of the
2002 Progress in Electromagnetics Research Symposium, 1-5 July 2002, Cambridge, MA, ISBN
0-9679674-2-2, 583, 2002.
Ruf,
C., C. Principe, T. Dod, B.
Gosselin, B.
Monosmith, S. Musko, S. Rogacki, A.
Stewart, Z.
Zhang,
“Lightweight Rainfall Radiometer STAR Aircraft Sensor,” Proc. of the 2002 IEEE
International Geoscience and Remote Sensing Symposium, Toronto, CA, 24-28 June 2002, II:
850-852, IEEE Cat. #02CH37380, 2002.
Jones, W.L., J.-D. Park, J. Zec, C.S.
Ruf, M.C. Bailey and J.W. Johnson, “A Feasibility Study for a Wide-Swath, Airborne,
Hurricane Imaging Microwave Radiometer for Operational Hurricane Measurements,” Proc.
of the 2002 IEEE International Geoscience and Remote Sensing Symposium, Toronto, CA, 24-28
June 2002, IEEE Cat. #02CH37380, 2002.
Gasiewski, A.J., C.S. Ruf,
M. Younis and W. Wiesbeck, “Impacts of Mobile Radar and Telecommunications on Earth
Remote Sensing in the 22-27 GHz Range,” Proc. of the 2002 IEEE International
Geoscience and Remote Sensing Symposium, Toronto, CA, 24-28 June 2002, III: 1679-1681,
IEEE Cat. #02CH37380, 2002.
Jones, W.L., J. Zec,
J.W. Johnson, C. S. Ruf and M.C. Bailey, “A Feasibility Study for a Wide-Swath, High
Resolution, Airborne Microwave Radiometer for Operational Hurricane Measurements,”
Proc. of the 56th Interdepartmental Hurricane Conference, 11-15 March 2002, New
Orleans, LA, 2002.
Ruf,
C.S. and Li, J., “Environmental Testing of Correlation
Radiometer Pairs with a Digital Noise Source,” Proc. of the 7th
Specialist Meeting on Microwave Remote Sensing, 5-9 November 2001, Boulder, CO, 9, 2001.
De
Roo, R., A. England, C. Ruf, L. Van Nieuwstadt, P. Hansen, T. Rashid, J. Harvey, R. Miller
and D. Boprie, “STAR-Light: An Airborne L-Band Synthetic Thinned Aperture Direct
Sampling Digital Radiometer for Soil Moisture Monitoring in the Arctic,” Proc. of the
7th Specialist Meeting on Microwave Remote Sensing, 5-9 November 2001, Boulder,
CO, 28, 2001.
Vandemark,
D., N. Tran, C. Ruf and B. Chapron, “Active/Passive Study of Wind-dependent
Signatures in Nadir-viewing Ocean Microwave Sensors,” Proc. of the 7th
Specialist Meeting on Microwave Remote Sensing, 5-9 November 2001, Boulder, CO, 123, 2001.
Li,
J. and C.S. Ruf, “Correlated Noise
Calibration System for a Multichannel Interferometric Radiometer,” Proc. of
the First International Microwave Radiometer Calibration Workshop, Adelphi, MD, 30-31 Oct
2000.
Ruf, C.S., C.M. Principe and S.P.
Neeck, “Enabling Technologies to Map Precipitation with Near-Global Coverage and
Hour-Scale Revisit Times,” Proceedings of the 2000 International Geoscience and
Remote Sensing Symposium, Honolulu, HI, IEEE Cat. #00CH37120, Vol. VII, 2988-2990, 2000.
Ruf, C.S., “Statistical Analysis
of a Lower Bound on Microwave Radiometer Brightness Temperature from Space,”
Proceedings of the 2000 International Geoscience and Remote Sensing Symposium, Honolulu,
HI, IEEE Cat. #00CH37120, Vol. VII, 2825-2826, 2000.
Ruf, C.S., “Implications of an improved atmospheric
absorption model on water vapor retrievals,” Proceedings of 6th
Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment, 15-18
March 1999, ITALY, VSP BV, The Netherlands, 137-144, 2000.
Giampaolo J. and C.S.
Ruf, “A Temperature Dependent Correction to the Model for Microwave Excess Emissivity
of the Ocean due to Surface Winds,” Proceedings of the 1999 International Geoscience
and Remote Sensing Symposium, Hamburg, GERMANY, IEEE Cat. #99CH36293, Vol. IV, 2312-2314,
1999.
Cruz Pol, S.L. and C.S.
Ruf, “Calibration of the model for ocean surface emissivity at microwave
frequencies,” Proceedings of the 1999 International Geoscience and Remote Sensing
Symposium, Hamburg, GERMANY, IEEE Cat. #99CH36293, Vol. IV, 2318-2320, 1999.
Ruf, C.S. and J.C.
Giampaolo, “Littoral antenna deconvolution for a microwave radiometer,”
Proceedings of the 1998 International Geoscience and Remote Sensing Symposium, Seattle,
WA, IEEE Cat. #98CH36174, 378-380, July 1998.
Ruf, C.S., “Polarimetric radiometry -
Coherent vs. incoherent detection,” Proceedings of the 1998 International Geoscience
and Remote Sensing Symposium, Seattle, WA, IEEE Cat. #98CH36174, 2181-2183, July 1998.
Albrecht,
B.A., G.G. Mace, W.J. Syrett, D. Thomas, C. Ruf, and J. Bobak, “Continental stratus
characteristics from surface-based remote sensing systems,” Proc. 12th Intl. Conf. on
Clouds and Precip., 9-23 August 1996.
Bobak,
J.P. and C.S. Ruf, “Prediction of water vapor scale height from integrated water
vapor measurements,” Proceedings of the 1996 International Geoscience and Remote
Sensing Symposium, Lincoln, NE, IEEE Cat. #96CH35875, 1692-1694, July 1996.
Cruz-Pol,
S.L., C.S. Ruf, and S.J. Keihm “Atmospheric microwave absorption parameter estimation
near 22 GHz,” Proceedings of the 1996 International Geoscience and Remote Sensing
Symposium, Lincoln, NE, IEEE Cat. #96CH35875, 1435-1437, July 1996.
Ruf,
C. S. and S.E. Beus, “Estimation of the ocean/atmosphere boundary layer height of
water vapor from space,” Proceedings of the 1996 International Geoscience and Remote
Sensing Symposium, Lincoln, NE, IEEE Cat. #96CH35875, 1263-1265, July 1996.
Bobak,
J.P. and C.S. Ruf, “An algorithm for improving the retrieval of cloud liquid water
and water vapor using effective radiating temperature of clouds,” Proceedings of the
Second Topical Symposium on Combined Optical-Microwave Earth and Atmosphere Sensing,
Atlanta, GA, IEEE Cat. #95TH8015, 115-117, April 1995.
Ruf,
C.S., K. Aydin, and S. Mathur, “Rain rate
estimation from attenuation measurements using a 35 GHz dual polarization propagation
link,” Proceedings of the 1994 International Geoscience and Remote Sensing Symposium,
Pasadena, CA, IEEE #94-CH3378-7, Vol. IV, 1777-1779, August 1994.
Ruf,
C.S., W.J. Wilson, K.M. Chandra, and A.B. Tanner, “Digital correlator performance
analysis for a synthetic aperture imaging radiometer,” Proceedings of the 1994
International Geoscience and Remote Sensing Symposium, Pasadena, CA, IEEE #94-CH3378-7,
Vol. III, 1317-1319, August 1994.
Ruf,
C.S., S.J. Keihm, and B. Subramanya, “TOPEX Microwave Radiometer in-flight
performance evaluation,” Proceedings of the 1993 International Geoscience and Remote
Sensing Symposium, Tokyo, JAPAN, IEEE #93CH3294-6, Vol. IV, 1759-1761, August 1993.
Ruf,
C.S., “Improved array configurations for synthetic aperture interferometric
radiometers,” Proceedings of the 1993 International Geoscience and Remote Sensing
Symposium, Tokyo, JAPAN, IEEE #93CH3294-6, Vol. III, 1435-1437, August 1993.
Keihm,
S.J., C.S. Ruf, and M.A. Janssen, “The TOPEX Microwave Radiometer: Verification Phase
Evaluation,” Proceedings of the AGU 1992 Fall Meeting, San Francisco, CA, 299, Dec.
1992.
Janssen,
M.A., S.J. Keihm, and C.S. Ruf, “The TOPEX microwave radiometer,” Proc.
Specialist Meeting on Microwave Radiometry and Remote Sensing, Boulder, Colorado, 1992.
Ruf,
C.S., “Error analysis of image reconstruction by a synthetic aperture interferometric
radiometer,” Proceedings of the International Union of Radio Science (URSI) at IGARSS
‘92, Houston, TX, 96-97, May 1992.
Le
Vine, D.M., L.M. Hilliard, C.T. Swift, C.S. Ruf and L.B. Garrett, “A synthetic
aperture microwave radiometer to measure soil moisture and ocean salinity from
space,” Proceedings of the 1991 International Geoscience and Remote Sensing
Symposium, Espoo, Finland, 975-978, June 1991.
Wilson,
W.J., C.S. Ruf, C.M. Satter and Y. Rahmat-Samii, “Design of a geostationary microwave
precipitation radiometer,” Proceedings of the IEEE MTT-S International Microwave
Symposium, Boston, MA, 1153-1156, June 1991.
Ruf, C.S., “Antenna performance
for a synthetic aperture microwave radiometer in geosynchronous earth orbit,”
Proceedings of the 1990 International Geoscience and Remote Sensing Symposium, College
Park, MD, IEEE #90CH2825-8, Vol. II, 1589-1592, May 1990.
Ruf,
C.S. and S.J. Keihm, “TOPEX/POSEIDON microwave radiometer - post-launch ground based
calibration/validation,” Proceedings of the 1990 International Geoscience and Remote
Sensing Symposium, College Park, MD, IEEE #90CH2825-8, Vol. I, 203-206, May 1990.
Ruf,
C.S., “Sparse aperture interferometric radiometry (SAIR) for the remote sensing of
the earth,” Proceedings of the 1989 International Symposium on Antennas and
Propagation, Tokyo, JAPAN, ISBN4-88552-079-7, Vol. I, 89-92, August 1989.
Ruf,
C.S., M.A. Janssen and S.J. Keihm, “TOPEX microwave radiometer system calibration;
refining the SMMR heritage,” Proceedings of the 1989 International Geoscience and
Remote Sensing Symposium, Vancouver, B.C., CANADA, IEEE #89CH2768-0, Vol. I, 271-272, July
1989.
Ruf,
C.S. and C.T. Swift, “Atmospheric profiling of water vapour with a 20.5-23.5 GHz
autocorrelation radiometer,” Proceedings of the 1988 International Geoscience and
Remote Sensing Symposium, Edinburgh, UK, IEEE #88CH2497-6, Vol. II, 957-960, August 1988.
Swift,
C.T., C. Ruf, A. Tanner and D. Le Vine, “The electronically steered thinned array
radiometer (ESTAR),” Proceedings of the 1986 International Geoscience and Remote
Sensing Symposium, Zurich, SWITZ., 591-593, October 1986.
Ruf,
C.S. and C.T. Swift, “Electronically steered thinned array radiometer, system design,
performance and calibration,” Proceedings of the 1985 International Geoscience and
Remote Sensing Symposium, Amherst, MA, 635-640, October 1985.
OTHER
PUBLICATIONS
National Academies of Sciences, Engineering, and Medicine (co-author), “Leveraging Commercial Space for Earth and Ocean Remote Sensing,” Washington, DC: The National Academies Press. doi: https://doi.org/10.17226/26380, 2022.
Marsik, F., C. Ruf, A. Lyons, P. Chang, Z. Jelenak, H. Hanson, “Eight Microsatellites, One Mission: CYGNSS,” The Earth Observer, NASA, 28(6), 4-13, Nov-Dec 2016.
Ruf, C., P. Chang, M.P. Clarizia, S. Gleason, Z. Jelenak, J. Murray, M. Morris, S. Musko, D. Posselt, D. Provost, D. Starkenburg, V. Zavorotny. CYGNSS Handbook, Ann Arbor, MI, Michigan Pub., ISBN 978-1-60785-380-0, 154 pp, 1 Apr 2016.
Ruf, C., M. Unwin, J. Dickinson, R. Rose, D. Rose, M. Vincent and A. Lyons, “CYGNSS: Enabling the Future of Hurricane Prediction,” IEEE Geosci. Remote Sens. Mag., 1(2), 52-67, doi: 10.1109/MGRS.2013.2260911, 2013.
Ruf, C., A. Lyons and A. Ward, “NASA Intensifies Hurricane Studies with CYGNSS,” The Earth Observer, NASA, 25(3), 12-21, May-June 2013.
Ruf, C. S., “Editorial,” IEEE Trans. Geosci. Remote Sens., 51(1), 5, doi: 10.1109/TGRS.2012.2233234, 2013.
Ruf, C. S., “Editorial,” IEEE Trans. Geosci. Remote Sens., 47(1), 3, doi: 10.1109/TGRS.2008.2010122, 2009.
Randa, J., J. Lahtinen, A. Camps, A. J. Gasiewski, M. Hallikainen, D. M. Le Vine, M. Martin-Neira, J. Piepmeier, P. W. Rosenkranz, C. S. Ruf, J. Shiue and N. Skou, “Recommended Terminology for Microwave Radiometry,” National Institute of Standards and Technology Technical Note 1551, 40 pp., Aug. 2008.
Ruf, C., A. Warnock and D. Boprie, Cover Figure, Geoscience and Remote Sensing Newsletter, 145, ISSN 0274-6338, Dec. 2007.
Ruf, C.S., Review of “Introduction to
Microwave Remote Sensing” by I.H. Woodhouse, The London Times Higher Education
Supplement Textbook Guide, 24, XII, 26 May 2006.
Gaiser, P.W., and C.S. Ruf, “Foreward to the Special Issue on the WindSat Spaceborne Polarimetric Radiometer – Calibration/Validation and Wind Vector Retrieval,” Trans. Geosci. Remote Sens., 44(3), 467-468, 2006.
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