Prof. ANNA M. MICHALAK

University of Michigan College of Engineering Department of Civil and Environmental Engineering Department of Atmospheric, Oceanic and Space Sciences

For a list of publications by type, click here.
Publications    (Note: Student authors are in blue)
37.		Alkhaled, A.A., A.M. Michalak, S.R. Kawa (accepted), “Using CO2 spatial variability to quantify representation errors of satellite CO2 retrievals,” Geophysical Research Letters, doi:10.1029/2008GL034528.
36.		Alkhaled, A.A., A.M. Michalak, S. Olsen, S.R. Kawa, J.-W. Wang (2008), “A global evaluation of the regional spatial variability of column integrated CO2 distributions,” Journal of Geophysical Research - Atmospheres, doi:10.1029/2007JD009693, in press.
35.		Michalak, A.M. (2008), “A geostatistical fixed-lag Kalman smoother for atmospheric inversions,” Atmospheric Chemistry and Physics Discussions, 8, 7755-7779, SRef-ID: 1680-7375/acpd/2008-8-7755.
34.		Mueller, K., S. Gourdji, and A.M. Michalak, (2008), “Global monthly-averaged CO2 fluxes recovered using a geostatistical inverse modeling approach: 1. Results using atmospheric measurements” Journal of Geophysical Research - Atmospheres, doi:10.1029/2007JD009734, in press.
33.		Gourdji, S., K. Mueller, K. Schaefer, and A.M. Michalak (2008), “Global monthly-averaged CO2 fluxes recovered using a geostatistical inverse modeling approach: 2. Results including auxiliary environmental data,” Journal of Geophysical Research - Atmospheres, doi:10.1029/2007JD009733, in press.
32.		Michalak, A.M. (2008), “A Gibbs sampler for inequality-constrained geostatistical interpolation and inverse modeling,” Water Resources Research, doi:10.1029/2007WR006645, in press.
31.		Body of Knowledge Committee of the Committee on Academic Prerequisites for Professional Practice (2008) “Civil Engineering Body of Knowledge for the 21st Century: Preparing the Civil Engineer for the Future,” Second Edition, American Society of Civil Engineers, 181p., Reston, Virginia, Contributor to Outcome 12: Risk and Uncertainty.
30.		Bruhwiler, L.M.P., A.M Michalak, and P.P. Tans (2007), “Spatial and temporal resolution of carbon flux estimates for 1983-2002,” Biogeosciences Discussions, 4, 4697-4756.
29.		Birdsey, R.A., R. Cook, S. Denning, W. Emanuel, P. Griffith, B.E. Law, J. Masek, A.M. Michalak, S. Ogle, D. Ojima, Y. Pan, C.L. Sabine, E. Sheffner, E.T. Sundquist (2007) “NACP Investigators Share Improved Understanding of the North American Carbon Cycle,” EOS Transactions, American Geophysical Union, 88(24), 255.
28.		Shlomi, S., T. Sakaki, T. Illangasekare, and A.M. Michalak (2007) “Evaluation of Geostatistical Data Assimilation Methodologies for Estimating Groundwater Plume Distributions Using 3D Sand-Tank Tracer-Tests,” in Proceedings of the 37th Mid-Atlantic Industrial & Hazardous Waste Conference, pp. 86-92, edited by G.A. Sorial and A. Bagtzoglou, Cincinnati, Ohio.
27.		Alkhaled, A.A., A.M. Michalak, and J.W. Bulkley (2007) "Applications of Risk Assessment in the Development of Climate Change Adaptation Policy," in Proceedings of the American Society of Civil Engineers (ASCE) Environmental and Water Resources Institute (EWRI) World Environmental & Water Resources Congress 2007: Restoring our Natural Habitat, 10 p., Tampa, Florida.
26.		Michalak, A.M., and S. Shlomi (2007) "A geostatistical data assimilation approach for estimating groundwater plume distributions from multiple monitoring events,” Invited paper, Subsurface Hydrology: Data Integration for Properties and Processes, American Geophysical Union (AGU) Geophysical Monograph Series 171, doi:10.1029/171GM08.
25.		Miller, C.E., D. Crisp, P.L. DeCola, S.C. Olsen, J.T. Randerson, A.M. Michalak, A. Alkhaled, P. Rayner, D.J. Jacob, P. Suntharalingam, D. Jones, A.S. Denning, M.E. Nicholls, S.C. Doney, S. Pawson, H. Boesch, B.J. Connor, I.Y. Fung, D. O’Brien, R.J. Salawitch. S.P. Sander, B. Sen, P. Tans, G.C. Toon, P.O. Wennberg, S.C. Wofsy, Y.L. Yung, R.M. Law (2007), “Precision requirements for space-based XCO2 data,” Journal of Geophysical Research, 112, D10314, doi: 10.1029/2006JD007659.
24.		Shlomi, S. and A.M. Michalak (2007) "A Geostatistical Framework for Incorporating Transport Information in Estimating the Distribution of a Groundwater Contaminant Plume," Water Resources Research, 43, W03412, doi:10.20/2006WR005121.
23.		Shlomi, S. and A.M. Michalak (2006) “Groundwater Contaminant Plume Interpolation Using Spatial Correlation and Transport Information,” in Civil & Environmental Engineering, University of Michigan, Newsletter for Alumni and Friends, Winter 2006, pp. 13-14.
22.		Adriaens, P., M.-Y. Li, and A.M. Michalak (2006) "Scaling Methods of Sediment Bioremediation Processes and Applications," Engineering in Life Sciences, 6:3, 217-227, doi:10.1002/elsc.200520127.
21.		Erickson, T. and A.M. Michalak (2006) "Merging of Variable-Resolution Imagery using Geostatistics and Sensor PSFs," in American Society for Photogrammetry and Remote Sensing (ASPRS) 2006 Conference Proceedings, 8p., Reno, Nevada.
20.		Hirsch, A.I., A.M. Michalak, L.M. Bruhwiler, W. Peters, E.J. Dlugokencky, and P.P. Tans (2006) "Inverse Modeling Estimates of the Global Nitrous Oxide Surface Flux from 1998-2001," Global Biogeochemical Cycles, 20, GB1008, doi:10.1029/2004GB002443.
19.		Michalak, A.M., A. Hirsch, L. Bruhwiler, K.R. Gurney, W. Peters, and P.P. Tans (2005) "Maximum Likelihood Estimation of Covariance Parameters for Bayesian Atmospheric Trace Gas Surface Flux Inversions," Journal of Geophysical Research. 110, D24107, doi:10.1029/2004JD005970.
18.		Bruhwiler, L.M.P., A.M. Michalak, W. Peters, D.F. Baker, and P. Tans (2005) "An Improved Kalman Smoother for Atmospheric Inversions," Atmospheric Chemistry and Physics, 5, 2691-2702.
17.		Michalak, A.M., and P.K. Kitanidis (2005) “A Method for the Interpolation of Nonnegative Functions with an Application to Contaminant Load Estimation,” Stochastic Environmental Research and Risk Assessment, 19, 8-23, doi:10.1007/s00477-004-0189-1.
16.		Michalak, A.M. (2004) “Feasibility of Contaminant Source Identification for Property Rights Enforcement,” in Incentives and Conservation, The Next Generation of Environmentalists, pp. 81-106, edited by Daniel K. Benjamin,  PERC, Bozeman, Montana.
15.		Michalak, A.M., and P.K. Kitanidis (2004) “Estimation of Historical Groundwater Contaminant Distribution Using the Adjoint State Method Applied to Geostatistical Inverse Modeling,” Water Resources Research, 40, W08302, doi:10.1029/2004WR003214.
14.		Michalak, A.M., L. Bruhwiler, and P.P. Tans (2004) “A Geostatistical Approach to Surface Flux Estimation of Atmospheric Trace Gases,” Journal of Geophysical Research, 109, D14109, doi:10.1029/2003JD004422.
13.		Michalak, A.M. (2004) “Use of Geostatistical Inverse Modeling for Constraining Trace Gas Budgets,” in Climate Monitoring and Diagnostics Laboratory (CMDL) Summary Report #27 (2002-2003), pp. 53-54, edited by R.C. Schnell, U.S. Department of Commerce, Boulder, Colorado.
12.		Adriaens, P., K. Hayes, C. Lastoskie, A. Michalak, A.M. Sastry, S. Batterman, S. Cherniak, A. Franzblau, and M. Philbert (2004) “Fetal Determinants of Adult Disease: Probabilistic Application of Genomic Tools for Pre- and Post-Remedial PDBE Exposures,” in The Third International Workshop on Brominated Flame Retardants,  pp. 63-66, edited by M. Alacee, G. Arsenault, et al., Toronto, Canada.
11.		Michalak, A.M., and P.K. Kitanidis (2004) “Application of Geostatistical Inverse Modeling to Contaminant Source Identification at Dover AFB, Delaware,” IAHR Journal of Hydraulic Research, 42 (extra issue), 9-18.
10.		Michalak, A.M. (2003) “Using Geostatistics to Constrain Source Identification,” in Civil & Environmental Engineering, University of Michigan, Newsletter for Alumni and Friends Fall 2003, pp. 16-18.
9.		Michalak, A.M. (2003) “Application of Bayesian Inference Methods to Inverse Modeling for Contaminant Source Identification,” Ph.D. Dissertation submitted to the Department of Civil and Environmental Engineering, Stanford University, Stanford, California, 292 p.
8.		Michalak, A.M., and P.K. Kitanidis (2003) “A Method for Enforcing Parameter Nonnegativity in Bayesian Inverse Problems with an Application to Contaminant Source Identification,” Water Resources Research, 39(2), 1033, doi:10.1029/2002WR001480.
7.		Michalak, A.M. (2002) “Environmental Contamination with Multiple Potential Sources and the Common Law: Current Approaches and Emerging Opportunities,” Fordham Environmental Law Journal, XIV(1), 147-206.
6.		Michalak, A.M., and P.K. Kitanidis (2002) “Application of Bayesian Inference Methods to Inverse Modeling for Contaminant Source Identification at Gloucester Landfill, Canada,” in Computational Methods in Water Resources XIV, Volume 2, pp. 1259-1266, edited by S.M. Hassanizadeh, R.J. Schotting, W.G. Gray and G.F. Pinder, Elsevier, Amsterdam, The Netherlands.
5.		Michalak, A.M. (2002) “Who's Responsible for This Mess? Tracing Environmental Contamination Back to Its Source,” Stanford Research Communication Program.
4.		Michalak, A.M., and P.K. Kitanidis (2002) “Application of Geostatistical Inverse Modeling to Contaminant Source Identification at Dover AFB, Delaware,” in International Groundwater Symposium: Bridging the Gap between Measurement and Modeling in Heterogeneous Media, pp. 137-139 (extended abstract), edited by A.N. Findikakis, IAHR, Madrid, Spain.  Full paper available on conference proceedings CD-ROM.
3.		Michalak, A.M. (2001) “Feasibility of Contaminant Source Identification for Property Rights Enforcement,” in The Technology of Property Rights, pp. 123-145, edited by Terry L. Anderson and Peter J. Hill,  Rowman and Littlefield Publishers, Inc., Lanham, Maryland.
2.		Michalak, A.M., and P.K. Kitanidis (2000) “Macroscopic Behavior and Random Walk Particle Tracking of Kinetically Sorbing Solutes,” Water Resources Research, 36(8), 2133-2146.
1.		Michalak, A.M., and P.K. Kitanidis (2000) “Numerical Investigations of Mixing in Physically Heterogeneous Porous Media using the One- and Two-Particle Covariance,” in Computational Methods in Water Resources XIII, Volume 1, Computational Methods for Subsurface Flow and Transport, pp. 423-429, edited by L.R. Bentley, J.F. Sykes, C.A. Brebbia, W.G. Gray and G.F. Pinder,  A.A. Balkema, Rotterdam, The Netherlands.
Published Abstracts and Presentations  (Note: Presenter is in italics; Authors who are members of the Michalak research group are in blue)
93.		Michalak, A.M., K.L. Mueller, S.M. Gourdji, A.I. Hirsch, A.E. Andrews, T. Nehrkorn, “Bridging Across Spatial and Temporal Scales in North American CO2 Flux Estimation through Geostatistical Analysis of Scale-Dependent Relationships between Carbon Flux and Auxiliary Environmental Data,” Talk to be presented at the IUFRO International Conference on Landscape Ecology and Forest Management: Challenges and Solutions, Symposium 1: Carbon Science and landscape ecology: Esitmation of ecosystem carbon dynamics across multiple spatial and temporal scales, Chengdu, P.R. China, September 2008.
92.		Huntzinger, D.N., K.L. Mueller, S.M. Gourdji, and A.M. Michalak, “Quantification and Attribution of Spatial and Temporal Variability of North American Biospheric Carbon Flux Estimates,” Talk to be presented at the IUFRO International Conference on Landscape Ecology and Forest Management: Challenges and Solutions, Symposium 1: Carbon Science and landscape ecology: Esitmation of ecosystem carbon dynamics across multiple spatial and temporal scales, Chengdu, P.R. China, September 2008.
91.		Michalak, A.M., "Improving Understanding of Global and Regional Carbon Dioxide Flux Variability through Assimilation of in Situ and Remote Sensing Data in a Geostatistical Framework," Invited talk to be presented at the 8th Summer Institute for the NOAA Climate and Global Change Postdoctoral Fellowship Program, Steamboat Springs, Colorado, July 2008.
90.		Michalak, A.M., A.A. Alkhaled, N. Cressie, A. Braverman, S.R. Kawa, S.C. Olsen, J.-W. Wang, "Mapping global CO2: Development and application of geostatistical algorithms for gap filling and uncertainty assessment for the Orbiting Carbon Observatory," Invited talk to be presented at the 5th International Workshop of Greenhouse Gas Measurements from Space (IWGGMS), California Institute of Technology, Pasadena, California, June 2008.
89.		Michalak, A.M. S.M. Gourdji, K. Mueller, D. Huntzinger, V. Yadav, A. Hirsch, A.E. Andrews, T. Nehrkorn, “Bridging Across Spatial and Temporal Scales in North American CO2 Flux Estimation through Geostatistical Analysis of Scale-Dependent Relationships between Carbon Flux and Auxiliary Environmental Data,” Talk presented at the 2008 TransCom Meeting, Utrecht, The Netherlands, June 2008.
88.		Michalak, A.M. “NASA Active Sensing of CO2 Emissions over Nights, Days, and Seasons (ASCENDS) Mission, Talk presented at the 2008 TransCom Meeting, Utrecht, The Netherlands, June 2008.
87.		Peylin, P., A. Jacobson, C. Roedenbeck, F. Chevallier, P. Rayner, P. Patra, A. Michalak, W. Peters, S. Houweling, “Atmospheric CO2 inversions: How to compare different estimates?” Talk presented at the 2008 TransCom Meeting, Utrecht, The Netherlands, June 2008.
86.		Andrews, A., A. Hirsch, A. Michalak, C. Sweeney, S. Wofsy, J. Eluszkiewicz, T. Nehrkorn, A. Jacobson, K. Masarie, W. Peters, and P. Tans, “A Lagrangian Particle Dispersion Model Approach for Evaluating CarbonTracker,” Talk presented at the 2008 NOAA ESRL Global Monitoring Annual Conference, Abstract p. 5, Boulder, Colorado, May 2008.
85.		Jacobson, A.R., D.F. Baker, M. Butler, J. Chen, F. Chevallier, P. Ciais, C. Crevoisier, K. Davis, A.S. Denning, S. Gourdji, A. Hirsch, R. Lokupitiya, A.M. Michalak, K. Mueller, P.K. Patra, P. Peylin, P.J. Rayner, C. Rodenbeck, A. Schuh, and C. Sweeney, “North American CO2 Fluxes from CarbonTracker Compared with a New Synthesis of Inverse Models,” Poster presented at the 2008 NOAA ESRL Global Monitoring Annual Conference, Abstract p. P-16, Boulder, Colorado, May 2008.
84.		Wofsy, S.C., S. Doney, J. Eluszkiewicz, C. Gerbig, M. Goulden, D. Jacob, R. Kawa, A. Michalak, S.M. Miller, C. Miller, P. Moorcroft, M. Pathmathevan, J. Randerson, S. Saleska, P. Wennberg, “Concentrations and fluxes of CO2, CH4, and other greenhouse gases at global, continental, and regional scales: Recent advances in measurements and models merging top-down and bottom up approaches,” Plenary talk presented at the NASA Carbon Cycle and Ecosystems Joint Science Workshop, University of Maryland, Adelphi, Maryland, April 2008.
83.		Huntzinger, D.N., K.L. Mueller, and A.M. Michalak, “Quantification of Spatial and Temporal Variability of North American Biospheric Carbon Flux Estimates,” Poster presented at the NASA Carbon Cycle and Ecosystems Joint Science Workshop, University of Maryland, Adelphi, Maryland, April 2008.
82.		Gourdji, S., A. Hirsch, K. Mueller, D. Huntzinger, A. Andrews, and A.M. Michalak, “Estimating North American CO2 Fluxes within a Geostatistical Inverse Modeling Framework: Preliminary Pseudo-data Results,” Poster presented at the NASA Carbon Cycle and Ecosystems Joint Science Workshop, University of Maryland, Adelphi, Maryland, April 2008.
81.		Mueller, K., P. Curtis, and A.M. Michalak, “A Landscape Investigation of Carbon Dioxide Flux Drivers using a Geostatistical Regression at Various Temporal Scales,” Poster presented at NASA VEG3D & BIOMASS Workshop, University of Virginia, Charlottesville, Virginia, March 2008.
80.		Gourdji, S., K. Mueller, A. Hirsch, A. Andrews, and A.M. Michalak, “Estimating North American Fluxes of Carbon Dioxide through Assimilation of Atmospheric, Remote Sensing and Other Environmental Data in a Geostatistical Framework,” Poster presented at NASA VEG3D & BIOMASS Workshop, University of Virginia, Charlottesville, Virginia, March 2008.
79.		Michalak, A.M., K. Mueller, S.M. Gourdji, A. Hirsch, A.E. Andrews, J.C. Lin, and T. Nehrkorn, “Bridging across spatial and temporal scales in North American CO2 flux estimation through geostatistical analysis of scale-dependent relationships between carbon flux and auxiliary environmental data,” Invited talk presented at the American Geophysical Union fall meeting, EOS Transactions, AGU 88 (52), Fall Meeting Supplement, Abstract B42C-01, December 2007.
78.		Mueller, K., P. Curtis, and A.M. Michalak, “A Landscape Investigation of Carbon Dioxide Flux Drivers using a Geostatistical Regression at Various Temporal Scales,” EOS Transactions, American Geophysical Union 88 (52), Fall Meeting Supplement, Abstract B53B-1186, December 2007.
77.		Alkhaled, A., S.R. Kawa, and A.M. Michalak, “A Geostatistical Approach for Gap-filling XCO2 Using Non-Stationary Spatial Covariance Functions,” EOS Transactions, American Geophysical Union 88 (52), Fall Meeting Supplement, Abstract A13D-1512, December 2007.
76.		Chatterjee, A., C.E. DeMarchi, and A.M. Michalak, “Improving Estimation of Over-Lake Precipitation – An Application to Lake Erie,” EOS Transactions, American Geophysical Union 88 (52), Fall Meeting Supplement, Abstract H33A-0972, December 2007.
75.		Shlomi, S., and A.M. Michalak, “A Geostatistical Inverse Modeling Method for Simultaneous Estimation of Hydraulic Conductivity and Contamination History,” EOS Transactions, American Geophysical Union 88 (52), Fall Meeting Supplement, Abstract H23B-1315, December 2007.
74.		Ostrowski, J., Shlomi, S., and A.M. Michalak, “Accounting for Transport Parameter Uncertainty in Geostatistical Groundwater Contaminant Release History Estimation,” EOS Transactions, American Geophysical Union 88 (52), Fall Meeting Supplement, Abstract H23B-1314, December 2007.
73.		Zhou, Y., and A.M. Michalak, “Estimating Point Concentrations of Total Organic Carbon in Water Sediments by Geostatistical Downscaling,” EOS Transactions, American Geophysical Union 88 (52), Fall Meeting Supplement, Abstract H31H-0760, December 2007.
72.		Michalak, A.M., “Atmospheric inverse modeling as a tool for constraining the global and regional budgets of carbon dioxide,” Invited talk presented to the interdisciplinary faculty-graduate student seminar series “Engineering Climate Change: Knowledge, Responsibilities, and Actions,” University of Michigan, November 2007.
71.		Gourdji, S., K. Mueller, and A.M. Michalak, “Estimating North American Fluxes of Carbon Dioxide from 2004 to 2006 at a 1o x 1o Resolution through Assimilation of Atmospheric, Remote Sensing, and Other Environmental Data in a Geostatistical Framework,” Poster presented at the Challenges of Climate Change in the Great Lakes Region summit, University of Michigan Biological Station, Pellston, Michigan, July 2007.
70.		Michalak, A.M.,“Geostatistical inverse modeling: Constraining estimation using spatial and temporal autocorrelation,” Talk presented at the 2007 Inverse Problems Symposium, Michigan State University, East Lansing, Michigan, June 2007.
69.		Alkhaled, A., J.W. Bulkley, and A.M. Michalak, “Applications of Risk Assessment in the Development of Climate Change Adaptation Policy,” Poster presented at the American Society of Civil Engineers (ASCE) Environmental and Water Resources Institute (EWRI) World Environmental & Water Resources Congress, Tampa, Florida, May 2007. (See also Conference Proceedings.)
68.		Michalak, A.M., K. Mueller, and S. Gourdji, “Fine Spatial Resolution Global CO2 Flux Estimates Obtained Using Remote-Sensing Derived Environmental Data within a Geostatistical Inverse Model,” Talk presented at the 2007 NOAA ESRL Global Monitoring Annual Conference, Abstract p. 36, Boulder, Colorado, May 2007.
67.		Adriaens, P., A.M. Michalak, M. Liu, and J. DePinto, “Design of a Wireless Sensor Network Optimization Strategy for Microbial Monitoring of Surface Waters,” Presented at the 7th International IWA Symposium on Systems Analysis & Integrated Assessment, WaterMatex 2007, Washington, D.C., May 2007.
66.		Michalak, A.M.,“Improving Understanding of Global and Regional Carbon Dioxide Flux Variability through Assimilation of in Situ and Remote Sensing Data in a Geostatistical Framework,” Talk presented at the 2007 TransCom Meeting, Purdue University, Lafayette, Indiana, April 2007.
65.		Michalak, A.M., “Inferring historical forcing using geostatistical inverse modeling: Examples from hydrogeology and atmospheric monitoring,” Invited talk presented to the Department of Civil and Environmental Engineering, Clarkson University, Potsdam, New York, April 2007.
64.		Li, M.-Y., A.M. Michalak, and P. Adriaens “Reproducing Spatial Variability Using a Novel Multi-Scale Model: An Example with Dioxin Data from Sediments in an Estuarine River” Presented at the 2007 European Geosciences Union Conference, Vienna, April 2007.
63.		Michalak, A.M., “Improving understanding of global and regional carbon dioxide flux variability through assimilation of in situ and remote sensing data in a geostatistical framework,” Invited talk presented at the Atmospheric Sciences Seminar Series, Harvard University, Cambridge, Massachusetts, March 2007.
62.		Michalak, A.M., “Improving understanding of global and regional carbon dioxide flux variability through assimilation of in situ and remote sensing data in a geostatistical framework,” Invited talk presented at the Department of Atmospheric Oceanic and Space Sciences Seminar Series, University of Michigan, Ann Arbor, Michigan, March 2007.
61.		Shlomi, S., T. Sakaki, T. Illangasekare, and A.M. Michalak, “Evaluation of Geostatistical Data Assimilation Methodologies for Estimating Groundwater Plume Distributions Using 3D Sand-Tank Tracer Tests,” Talk presented at the 37th Mid-Atlantic Industrial & Hazardous Waste Conference, Cincinnati, Ohio, March 2007. (See also Conference Proceedings.)
60.		Michalak, A.M., Invited plenary presentation at wrap-up panel session, U.S. North American Carbon Program (NACP) Investigators Meeting, Colorado Springs, Colorado, January 2007.
59.		Michalak, A.M., A.I. Hirsch, J.C. Lin, and A. Andrews, “Constraining North American Fluxes of Carbon Dioxide and Inferring their Spatiotemporal Covariances through Assimilation of Remote Sensing and Atmospheric Data in a Geostatistical Framework,” Poster presented at the U.S. North American Carbon Program (NACP) Investigators Meeting, Colorado Springs, Colorado, January 2007.
58.		Michalak, A.M., A.I. Hirsch, J.C. Lin, and A. Andrews, “Constraining North American Fluxes of Carbon Dioxide and Inferring their Spatiotemporal Covariances through Assimilation of Remote Sensing and Atmospheric Data in a Geostatistical Framework,” Poster presented at the Joint Canada-Mexico-USA Carbon Program Planning Meeting, Colorado Springs, Colorado, January 2007.
57.		Alkhaled, A., A.M. Michalak, S.R. Kawa, S.C. Olsen, and J.-W. Wang, “Geostatistical Analysis of the Spatial Covariance Structure of Modeled Column Average Dry Air Carbon Dioxide Mole Fraction Distributions,” Poster presented at the U.S. North American Carbon Program (NACP) Investigators Meeting, Colorado Springs, CO, January 2007.
56.		Gourdji, S., K. Mueller, A.M. Michalak, “Using auxiliary environmental data to constrain global carbon fluxes within a geostatistical inverse modeling framework,” Poster presented at the U.S. North American Carbon Program (NACP) Investigators Meeting, Colorado Springs, CO, January 2007.
55.		Michalak, A.M., “New modeling and monitoring approaches for quantifying carbon fluxes at regional and global scales,” Talk presented at the Michigan Memorial Phoenix Energy Institute Workshop on Energy, University of Michigan, Ann Arbor, Michigan, January 2007.
54.		Alkhaled, A., A.M. Michalak, S.C. Olsen, and J.-W. Wang, “Spatial Covariance Structure of Modeled Column Integrated CO2 Distributions and its Impact on Representativeness of Satellite Measurements,” EOS Transactions, American Geophysical Union 87 (52), Fall Meeting Supplement, Abstract B51C-0320, December 2006.
53.		Michalak, A.M., A.I. Hirsch, J.C. Lin, and A. Andrews, “Constraining North American Fluxes of Carbon Dioxide and Inferring their Spatiotemporal Covariances through Assimilation of Remote Sensing and Atmospheric Data in a Geostatistical Framework,” EOS Transactions, American Geophysical Union 87 (52), Fall Meeting Supplement, Abstract B43B-0275, December 2006.
52.		Erickson, T.A., and A.M. Michalak, “What does a pixel represent?  Accounting for non-uniform spatial information content of remotely sensed data used for data assimilation,” EOS Transactions, American Geophysical Union 87 (52), Fall Meeting Supplement, Abstract A31A-0869, December 2006.
51.		Li, M.-Y., P. Adriaens, and A.M. Michalak, “Reproducing Spatial Variability by the M-Scale Model: Development, Validation and Application” Poster presented at the Partners in Environmental Technology Technical Symposium & Workshop, Washington, D.C. November 2006.
50.		Alkhaled, A., A.M. Michalak “Geostatistical Analysis of Carbon Dioxide Average Column Concentrations (XCO2) for Design of Optimal Remote Sensing Sampling Strategy,” Poster presented at the Michigan Space Grant Consortium conference, Ann Arbor, Michigan, September 2006.
49.		Gourdji, S., K. Mueller, Y. Zhou, and A.M. Michalak “Use of Remote Sensing Data and Geostatistical Inverse Modeling to Estimate Global Carbon Fluxes and Validate Process-Based Biospheric Models,” Invited poster presented at the Michigan Space Grant Consortium conference, Ann Arbor, MI, September 2006.
48.		Michalak, A.M., S. Gourdji, and K. Mueller, “Use of remote sensing data and geostatistical inverse modeling for quantifying processes controlling the spatial and temporal variability of carbon fluxes,” Talk presented at the 40th Canadian Meteorological and Oceanographic Society Congress, Abstract 2C3.2, Toronto, Canada, May 2006.
47.		Michalak, A.M., “Application of Geostatistical Tools for Quantifying Complexity and Uncertainty in Environmental Systems,” Invited talk presented at the International Symposium on Soil, Groundwater Environment & Waste Management, The University of Seoul, Seoul, Korea, May 2006.
46.		Erickson, T.A., and A.M. Michalak, “Merging of Variable-Resolution Imagery using Geostatistics and Sensor PSFs,” Talk presented at the American Society for Photogrammetry and Remote Sensing (ASPRS) Conference, Reno, Nevada, May 2006. (See also Conference Proceedings.)
45.		Alkhaled, A. and A.M. Michalak “Atmospheric XCO2 Spatial Variability: The Orbiting Carbon Observatory (OCO) Subsampling Strategy,” poster to be presented at the Michigan Geophysical Union conference, Ann Arbor, Michigan, May 2006.
44.		Michalak, A.M., “Application of Geostatistical Tools for Quantifying Complexity and Uncertainty in Environmental Systems,” Invited talk presented at the IIHR Hydroscience & Engineering seminar series, University of Iowa, Iowa City, Iowa, March 2006.
43.		Michalak, A.M., “Applications of geostatistical tools to constraining the global carbon cycle,” Invited talk presented at the Department of Chemical and Biochemical Engineering, University of Iowa, Iowa City, Iowa, March 2006.
42.		Michalak, A.M., “Quantifying the Spatial Covariance Structure of Modeled XCO2 Distributions: A Tool for Informing the Level 1b Subsampling Strategy,” Invited talk presented at the Orbiting Carbon Observatory (OCO) Science Team Meeting, Pasadena, California, March 2006.
41.