Sciences and Exploration Directorate

Meta E Sienkiewicz



Org Code: 610.1

Mail Code: 610.1
Greenbelt, MD 20771



Chief Research Scientist

SSAI - Global Modeling and Assimilation Office, NASA Goddard

February 2012 - Present

Support Scientist

Science Applications International Corporation (SAIC) - Global Modeling and Assmilation Office, NASA GSFC Data Assimilation Office, NASA GSFC

June 1993 - January 2012

Resident Research Associate

National Research Council - Data Assimilation Office, NASA GSFC

May 1991 - May 1993


1991 Ph.D., Meteorology, University of Oklahoma, Norman Oklahoma
1981 M.S., Meteorology, Texas A&M University, College Station, Texas
1979 B.S, Meteorology, Texas A&M University, College Station, Texas  (High Honors)

Professional Societies

American Meteorological Society

1978 - Present

American Geophysical Union

1999 - Present

Selected Publications


Privé, N. C., M. McLinden, B. Lin, et al. I. Moradi, M. E. Sienkiewicz, G. M. Heymsfield, and W. McCarty. 2023. Impacts of marine surface pressure observations from a spaceborne differential absorption radar investigated with an observing system simulation experiment Journal of Atmospheric and Oceanic Technology 40 897-918 [10.1175/JTECH-D-22-0088.1]

Errico, R. M., D. Carvalho, N. C. Privé, and M. Sienkiewicz. 2020. Simulation of Atmospheric Motion Vectors for an Observing System Simulation Experiment Journal of Atmospheric and Oceanic Technology 37 (3): 489-505 [10.1175/jtech-d-19-0079.1]

Gelaro, R., W. McCarty, M. J. Suárez, et al. R. Todling, A. Molod, L. Takacs, C. Randles, A. Darmenov, M. G. Bosilovich, R. Reichle, K. Wargan, L. Coy, R. Cullather, C. Draper, S. Akella, V. Buchard, A. Conaty, A. da Silva, W. Gu, G.-K. Kim, R. Koster, R. Lucchesi, D. Merkova, J. E. Nielsen, G. Partyka, S. Pawson, W. Putman, M. Rienecker, S. D. Schubert, M. Sienkiewicz, and B. Zhao. 2017. The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2) Journal of Climate 30 5419–5454 [10.1175/jcli-d-16-0758.1]

Errico, R. M., R. Yang, N. C. Prive, et al. K.-S. Tai, R. Todling, M. E. Sienkiewicz, and J. Guo. 2013. Development and validation of observing-system simulation experiments at NASA's Global Modeling and Assimilation Office Q.J.R. Meteorol. Soc. 139 (674): 1162-1178 [10.1002/qj.2027]

Rienecker, M. M., M. J. Suarez, R. Gelaro, et al. R. Todling, J. Bacmeister, E. Liu, M. G. Bosilovich, S. D. Schubert, L. Takacs, G.-K. Kim, S. Bloom, J. Chen, D. Collins, A. Conaty, A. da Silva, W. Gu, J. Joiner, R. D. Koster, R. Lucchesi, A. Molod, T. Owens, S. Pawson, P. Pegion, C. R. Redder, R. H. Reichle, F. R. Robertson, A. G. Ruddick, M. Sienkiewicz, and J. Woollen. 2011. MERRA: NASA’s Modern-Era Retrospective Analysis for Research and Applications J. Climate 24 (14): 3624-3648 [10.1175/JCLI-D-11-00015.1]

Cohn, S. E., A. Da Silva, J. Guo, M. Sienkiewicz, and D. Lamich. 1998. Assessing the Effects of Data Selection with the DAO Physical-Space Statistical Analysis System* Monthly Weather Review 126 (11): 2913--2926

Sienkiewicz, M. E., and J. Pfaendtner. 1997. Assimilation Variability in the GEOS-1 Data Assimilation System Monthly Weather Review 125 (4): 560-571 [10.1175/1520-0493(1997)125<0560:avitgd>;2]


Errico, R. M., N. C. Prive, D. Carvalho, et al. M. E. Sienkiewicz, A. El Akkraoui, J. Guo, R. Todling, W. R. Mccarty, W. M. Putman, A. M. Da Silva, R. Gelaro, and I. Moradi. 2017. Description of the GMAO OSSE for Weather Analysis Software Package: Version 3 NASA Technical Report Series on Global Modeling and Data Assimilation, NASA/TM-2017-104606 48 156 pp.

Mccarty, W. R., L. Coy, R. Gelaro, et al. A. Huang, D. Merkova, E. B. Smith, M. E. Sienkiewicz, and K. Wargan. 2016. MERRA-2 Input Observations: Summary and Assessment Technical Report Series on Global Modeling and Data Assimilation 46 (NASA/TM–2016-104606):