Technical Memoranda
-
Endsley K.Arthur, John S. Kimball; Tobias Kundig; Rolf H. Reichle; Joseph V. Ardizzone (2023) Validation Assessment for the Soil Moisture Active Passive (SMAP) Level 4 Carbon (L4_C) Data Product Version 7 NASA/TM-2023-104606. Vol. 65 ,56pp
-
Reichle Rolf H., Qing Liu; Joseph V. Ardizzone; Michel Bechtold; Wade T. Crow; Gabrielle J. M. De Lannoy; John S. Kimball and Randal D. Koster (2023) Soil Moisture Active Passive (SMAP) Project Assessment Report for Version 7 of the L4_SM Data Product NASA/TM-2023-104606. Vol. 64 ,91pp
-
Kemppinen Osku, Peter R. Colarco and Patricia Castellanos (2022) GEOS aerosol optical table calculation package GEOSmie NASA/TM-2023-104606. Vol. 63 ,81pp
-
Chang Yehui, Siegfried Schubert; Randal Koster; Andrea Molod; and Yong-Kwon Lim (2022) Climate Characteristics of the Atmospheric Analysis Increments from the GEOS S2S V3 AOGCM Replayed to MERRA-2 NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2021-104606. Vol. 62 ,147pp
-
Kimball John, K. Arthur Endsley; Tobias Kundig; Joseph Glassy; Rolf H. Reichle and Joseph V. Ardizzone (2022) Validation Assessment for the Soil Moisture Active Passive (SMAP) Level 4 Carbon (L4_C) Data Product Version 6 ASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2022-104606. Vol. 61 ,45pp
-
Reichle Rolf, Qing Liu; Randal D. Koster; Joseph V. Ardizzone; Andreas Colliander; Wade T. Crow; Gabrielle J. M. De Lannoy and John S. Kimball (2022) Soil Moisture Active Passive (SMAP) Project Assessment Report for Version 6 of the L4_SM Data Product NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2021-104606. Vol. 60 ,72pp
-
Reichle Rolf, and Qing Liu (2021) Observation-Corrected Precipitation for the SMAP Level 4 Soil Moisture (Version 6) Product and the GEOS R21C Reanalysis NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2021-104606. Vol. 59 ,32pp
-
Reichle Rolf, Qing Liu; Randal D. Koster; Joseph V. Ardizzone; Andreas Colliander; Wade T. Crow; Gabrielle J. M. De Lannoy and John S. Kimball (2021) Soil Moisture Active Passive (SMAP) Project Assessment Report for Version 5 of the L4_SM Data Product NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2021-104606. Vol. 58 ,60pp
-
Chang Yehui, Siegfried Schubert; Randal Koster and Andrea Molod (2021) Tendency Bias Correction in the GEOS AGCM NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2021-104606. Vol. 57 ,78pp
-
Kimball John, K. Arthur Endsley; Tobias Kundig; Joseph Glassy; Rolf H. Reichle and Joseph V. Ardizzone (2021) Validation Assessment for the Soil Moisture Active Passive (SMAP) Level 4 Carbon (L4_C) Data Product Version 5 NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2021-104606. Vol. 56 ,31pp
-
Schubert Siegfreid, Young-Kwon Lim; Andrea Molod; and Allison Marquardt Collow (2021) A Phenomenon-Based Decomposition of Model-Based Estimates of Boreal Winter ENSO Variability NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2021-104606. Vol. 55 ,88pp
-
Carvalho David, and Will McCarty (2020) Position Estimation of Atmospheric Motion Vectors for Observation System Simulation Experiments NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2019-104606. Vol. 54 ,44pp
-
Schubert Siegfried, Anna Borovikov; Young-Kwon Lim; and Andrea Molod (2019) Ensemble Generation Strategies Employed in the GMAO GEOS-S2S Forecast System NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2019-104606. Vol. 53 ,75pp
-
Reichle Rolf H., Qing Liu; Randal D. Koster; Joseph V. Ardizzone; Andreas Colliander; Wade T. Crow; Gabrielle J. M. De Lannoy; and John S. Kimball (2018) Soil Moisture Active Passive (SMAP) Project Assessment Report for Version 4 of the L4_SM Data Product NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2018-104606. Vol. 52 ,72pp
-
Akella Santha, and Max Suarez (2018) The Atmosphere-Ocean Interface Layer of NASA’s Goddard Earth Observing System Model and Data Assimilation System NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2018-104606. Vol. 51 ,42pp
-
Todling Ricardo, and Amal El Akkraoui (2018) The GMAO Hybrid Ensemble-Variational Atmospheric Data Assimilation System: Version 2.0 NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2018-104606. Vol. 50 ,184pp
-
Kim Jong, Santha Akella; Arlindo M. da Silva; Ricardo Todling; and William McCarty (2018) Preliminary evaluation of influence of aerosols on the simulation of brightness temperature in the NASA’s Goddard Earth Observing System Atmospheric Data Assimilation System NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2018-104606. Vol. 49 ,44pp
-
Errico Ronald M., Nikki C. Privé; David Carvalho; Meta Sienkiewicz; Amal El Akkraoui; Jing Guo; Ricardo Todling; Will McCarty; William M. Putman; Arlindo da Silva; Ronald Gelaro; Isaac Moradi (2017) Description of the GMAO OSSE for Weather Analysis Software Package: Version 3 NASA/TM-2017-104606. Vol. 48 ,156pp
-
Collow Allison B. Marquardt, Sarith P. Mahanama; Michael G. Bosilovich; Randal D. Koster; and Siegfried D. Schubert (2017) An Evaluation of Teleconnections Over the United States in an Ensemble of AMIP Simulations with the MERRA-2 Configuration of the GEOS Atmospheric Model NASA/TM-2017-104606. Vol. 47 ,68pp
-
McCarty Will, Lawrence Coy; Ronald Gelaro; Albert Huang; Dagmar Merkova; Edmond B. Smith; Meta Seinkiewicz; and Krzysztof Wargan (2016) MERRA-2 Input Observations: Summary and Assessment NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2016-104606. Vol. 46 ,61pp
-
Randles C. A., A. M. da Silva; V. Buchard; A. Darmenov; P. R. Colarco; V. Aquila; H. Bian; E. P. Nowottnick; X. Pan; A. Smirnov; H. Yu; and R. Govindaraju (2016) The MERRA-2 Aerosol Assimilation NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2016-104606. Vol. 45 ,143pp
-
Akella Santha, Ricardo Todling and Max Suarez (2016) Estimation of the Ocean Skin Temperature using the NASA GEOS Atmospheric Data Assimilation System NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2016-104606. Vol. 44 ,88pp
-
Bosilovich Michael G., Santha Akella; Lawrence Coy; Richard Cullather; Clara Draper; Ronald Gelaro; Robin Kovach; Qing Liu; Andrea Molod; Peter Norris; Krzysztof Wargan; Winston Chao; Rolf Reichle; Lawrence Takacs; Yury Vikhliaev; Steve Bloom; Allison Collow; Stacey Firth; (2015) MERRA-2: Initial Evaluation of the Climate NASA/TM-2015-104606. Vol. 43 ,139pp
-
Kimball John S., Lucas A. Jones;Joseph Glassy; E. Natasha Stavros; Nima Madani; Rolf H. Reichle; Thomas Jackson; and Andreas Colliander (2015) Soil Moisture Active Passive (SMAP) Project Calibration and Validation for the L4_C Beta-Release Data Product NASA/TM-2015-104606. Vol. 42 ,37pp
-
Schubert Siegfried, Will Pozzi; Kingtse Mo; Eric F. Wood; Kerstin Stahl; Mike Hayes; Juergen Vogt; Sonia Seneviratne; Ron Stewart; Roger Pulwarty; and Robert Stefanski (2015) GDIS Workshop Report NASA/TM-2015-104606. Vol. 41 ,40pp
-
Reichle Rolf H., Gabrielle J. M. De Lannoy; Qing Liu; Andreas Colliander; Austin Conaty; Thomas Jackson; John Kimball; and Randal D. Koster (2015) Soil Moisture Active Passive (SMAP) Project Assessment Report for the Beta-Release L4_SM Data Product NASA/TM-2015-104606. Vol. 40
-
Mahanama Sarith P., Randal D. Koster; Gregory K. Walker; Lawrence L. Takacs; Rolf H. Reichle; Gabrielle De Lannoy; Qing Liu; Bin Zhao; and Max J. Suarez (2015) Land Boundary Conditions for the Goddard Earth Observing System Model Version 5 (GEOS-5) Climate Modeling System - Recent Updates and Data File Descriptions NASA/TM-2015-104606. Vol. 39 ,55pp
-
Darmenov Anton, and Arlindo da Silva (2015) The Quick Fire Emissions Dataset (QFED): Documentation of versions 2.1, 2.2 and 2.4 NASA/TM-2015-104606. Vol. 38 (pp212)
-
Takacs Lawrence L., Max Suarez; and Ricardo Todling (2015) Maintaining Atmospheric Mass and Water Balance Within Reanalysis NASA/TM-2014-104606. Vol. 37 (pp39)
-
Gelaro Ronald, William M. Putman; Steven Pawson; Clara Draper; Andrea Molod; Peter M. Norris; Lesley Ott; Nikki Privé; Oreste Reale; Deepthi Achuthavarier; Michael Bosilovich; Virginie Buchard; Winston Chao; Lawrence Coy; Richard Cullather; Arlindo da Silva; (2015) Evaluation of the 7-km GEOS-5 Nature Run NASA/TM-2014-104606. Vol. 36
-
Reichle R. H., and Q. Liu (2014) Observation-Corrected Precipitation Estimates in GEOS-5 NASA/TM-2014-104606. Vol. 35
-
Keppenne C. L., M. M. Rienecker; R. M. Kovach; and G. Vernieres (2014) Background error covariance estimation using information from a single model trajectory with application to ocean data assimilation into the GEOS-5 coupled model NASA/TM-2014-104606. Vol. 34
-
Rousseaux C. S., and W. W. Gregg (2014) The effects of chlorophyll assimilation on carbon fluxes in a global biogeochemical model NASA/TM-2014-104696. Vol. 33 (22)
-
Provencal S., P. Kishcha; E. Elhacham; A. M. da Silva; and P. Alpert (2014) Estimates of AOD Trends (2002 - 2012) over the World’s Major Cities based on the MERRA Aerosol Reanalysis NASA/TM-2014-104606. Vol. 32 ,40pp
-
Gregg W. W., N. W. Casey; and C. S. Rousseaux (2013) Global surface ocean carbon estimates in a model forced by MERRA NASA Technical Report Series on Global Modeling and Data Assimilation; NASA TM-2013-104606. Vol. 31 ,39pp
-
Vernieres G., M. Rienecker; R. Kovach; and C. Keppenne (2012) The GEOS-iODAS: Description and Evaluation NASA Technical Report Series on Global Modeling and Data Assimilation; NASA TM—2012-104606. Vol. 30 ,61pp
-
Rienecker M.M., D. Dee; J. Woollen; G. P. Compo; K. Onogi; R. Gelaro; M. G. Bosilovich; A. da Silva; S. Pawson; S. Schubert; M. Suarez; D. Barker; H. Kamahori; R. Kistler; and S. Saha (2012) Atmospheric Reanalyses—Recent Progress and Prospects for the Future. A Report from a Technical Workshop, April 2010 NASA Technical Report Series on Global Modeling and Data Assimilation; NASA TM—2012-104606. Vol. 29 ,56pp
-
Molod A., L. Takacs; M. Suarez; J. Bacmeister; I.-S. Song; and A. Eichmann (2012) The GEOS-5 Atmospheric General Circulation Model: Mean Climate and Development from MERRA to Fortuna NASA Technical Report Series on Global Modeling and Data Assimilation; NASA TM—2012-104606. Vol. 28 ,117pp
-
Rienecker M.M., M. J. Suarez; R. Todling; J. Bacmeister; L. Takacs; H.-C. Liu; W. Gu; M. Sienkiewicz; R. D. Koster; R. Gelaro; I. Stajner; and J. E. Nielsen (2008) The GEOS-5 Data Assimilation System - Documentation of Versions 5.0.1, 5.1.0, and 5.2.0 Technical Report Series on Global Modeling and Data Assimilation. Vol. 27 ,1-118pp
-
Bloom S., A. da Silva; D. Dee; M. Bosilovich; J.-D. Chern; S. Pawson; S. Schubert; M. Sienkiewicz; I. Stajner; W.-W. Tan; M.-L. Wu (2005) Documentation and Validation of the Goddard Earth Observing System (GEOS) Data Assimilation System - Version 4 Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 26 (NASA/) ,1-187pp
-
Waliser D., S. Schubert; A. Kumar; K. Weickmann; and R. Dole (2003) Modeling, Simulation, and Forecasting of Subseasonal Variability NASA Technical Report Series on Global Modeling and Data Assimilation; NASA/TM-2016-104606. Vol. 25 ,70pp
-
Rienecker M., A. Troccoli; C. Keppenne; G. Johnson (2003) Temperature Data Assimilation with Salinity Corrections: Validation for the NSIPP Ocean Data Assimilation System in the Tropical Pacific Ocean, 1993-1998 Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 24 ,1-39pp
-
Schubert S., R. Dole; H. van den Dool; M. Suarez; D. Waliser (2002) Prospects for Improved Forecasts of Weather and Short-Term Climate Variability on Subseasonal (2-Week to 2-Month) Time Scales Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 23 ,1-163pp
-
(2002) A Coupled Ocean-Atmosphere Radiative Model for Global Ocean Biogeochemical Models Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 22 ,1-31pp
-
Keppene C. L., and M. Rienecker (2001) Design and Implementation of a Parallel Multivariate Ensemble Kalman Filter for the Poseidon Ocean General Circulation Model NASA Technical Memorandum 104606. Vol. 21
-
Chang Y., S. D. Schubert; S. J. Lin; S. Nebuda; B.-W. Shen (2001) The Climate of the FVCCM-3 Model Technical Report Series on Global and Data Assimilation. Vol. 20
-
Chou M.-D., M. Suarez; X.-Z. Liang; M. M.-H. Yan (2001) A Thermal Infrared Radiation Parameterization for Atmospheric Studies Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 19
-
Pegion P. J., S. D. Schubert; M. Suarez (2000) An Assessment of the Predictability of Northern Winter Seasonal Means with the NSIPP 1 AGCM Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 18
-
Bacmeister J., S. D. Schubert; M. Suarez; P. J. Pegion (2000) Atlas of Seasonal Means Simulated by the NSIPP 1 Atmospheric GCM Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 17
-
Takacs L., W. Sawyer; M. J. Suarez; and M. S. Fox-Rabinowitz (1999) Filtering Techniques on a Stretched Grid General Circulation Model NASA Technical Memorandum 104606. Vol. 16
-
Chou M.-D., and M. Suarez (1999) A Solar Radiation Parameterization for Atmospheric Studies Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 15
-
Bosilovich M. G., and S. D. Schubert (1998) A Comparison of GEOS Assimilated Data with FIFE Observations Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 14
-
Min W., and S. Schubert (1997) Interannual Variability and Potential Predictability in Reanalysis Products Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 13
-
Chang A., and L. Chiu (1997) Comparison of Satellite Global Rainfall Algorithms Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 12
-
Yang W., I. M. Navon; R. Todling (1997) Documentation of the Tangent and Adjoint Models of the Relaxed Arakawa-Schubert Moisture Parameterization Package of the NASA GEOS-1 GCM Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 11
-
Takacs L., and M. Suarez (1996) Dynamical Aspects of Climate Simulations Using the GEOS General Circulation Model NASA Technical Memorandum 104606. Vol. 10
-
Koster R. D., and M. J. Suarez (1996) Energy and Water Balance Calculations in the Mosaic LSM Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 9
-
Yang W., and I. M. Navon (1995) Documentation of the Tangent Linear Model and Its Adjoint of the Adiabatic Version of the NASA GEOS-1 C-Grid GCM (Version 5.2) Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 8
-
Schubert S. D., and R. Rood (1995) Proceedings of the Workshop on the GEOS-1 Five-Year Assimilation NASA Technical Memorandum 104606. Vol. 7
-
Schubert S. D., C. K. Park; C. Y. Wu; W. Higgins; Y. Kondratyeva; A. Molod; L. L. Takacs; M. Seablom; R. B. Rood (1995) A Multiyear Assimilation with the GEOS-1 System: Overview and Results NASA Technical Memorandum 104606. Vol. 6
-
Suarez M., and L. L. Takacs (1995) Documentation of the Aries-GEOS Dynamical Core: Version 2 NASA Technical Memorandum 104606. Vol. 5
-
Pfaendtner J., S. Bloom; D. Lamich; M. Seablom; M. Sienkiewicz; J. Stobie; A. da Silva (1995) Documentation of the Goddard Earth Observing System (GEOS) Data Assimilation System: Version 1 NASA Technical Memorandum 104606. Vol. 4
-
Chou M.-D., M. J. Suarez; X.-Z. Liang; M. Yan (1994) An Efficient Thermal Infrared Radiation Parameterization for Use in General Circulation Models Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 3
-
Li Y., S. Moorthi; J. R. Bates (1994) Direct Solution of the Implicit Formulation of Fourth Order Horizontal Diffusion for Gridpoint Models on the Sphere Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 2
-
Takacs L., A. Molod; T. Wang (1994) Documentation of the Goddard Earth Observing System (GEOS) General Circulation Model: Version 1 Technical Report Series on Global Modeling and Data Assimilation 104606. Vol. 1