National Aeronautics and Space Administration

REFEREED PUBLICATIONS - 2021

Anstey, J., T. Banyard, N. Butchart, L. Coy, P. A. Newman, S. Osprey, and C. Wright, 2021. Prospect of increased disruption to the QBO in a changing climate. Geophys. Res. Lett. , 48 (15), e2021GL093058 . doi: 10.1029/2021GL093058  Link to Published Version

Aquila, V., C. Baldwin, N. Mukherjee, E. Hackert, F. Li, J. Marshak, A. Molod, S. Pawson, 2021. Impacts of the eruption of Mount Pinatubo on surface temperatures and precipitation in the NASA GEOS subseasonal-to-seasonal forecast system. Journal of Geophysical Research - Atmospheres , 126 (16), e2021JD034830. doi: 10.1029/2021JD034830  Link to Published Version

Beck, H. E., M. Pan, D. Miralles, R. H. Reichle, W. Dorigo, S. Hahn, J. Sheffield, L. Karthikeyan, G. Balsamo, R. M. Parinussa, A. I. J. M. VanDijk N. Vergopolan, and E. F. Wood, 2021. Evaluation of 18 satellite- and model-based soil moisture products using in situ measurements from 826 sensors. Hydrology and Earth System Sciences , 25, 17-40. doi:10.5194/hess-25-17-2021  Link to Published Version

Bindle, L., R. V. Martin, M. J. Cooper, E. W. Lundgren, S. D. Eastham, B. M. Auer, T. L. Clune, H. Wen, J. Lin, L. T. Murray, J. Meng, C. A. Keller, S. Pawson, and D. J. Jacob, 2021. Grid-Stretching Capability for the GEOS-Chem 13.0.0 Atmospheric Chemistry Model. Geoscientific Model Development , 14, 5977-5997. doi: 10.5194/gmd-14-5977-2021  Link to Published Version

Breen, K. H., D. Barahona, T. Yuan, H. Bian, and S. C. James, 2021. Effect of volcanic emissions on clouds during the 2008 and 2018 Kilauea degassing events. Atmospheric Chemistry and Physics , 21, 7749-7771. doi: 10.5194/acp-21-7749-2021  Link to Published Version

Brewin, R. J. W., S. Sathyendranath, T. Platt, H Bowman, et al., 2021. Sensing the ocean biological carbon pump from space: A review of capabilities, concepts, research gaps and future developments. Earth-Science Review , 217, 103604. doi:10.1016/j.earscirev.2021.103604  Link to Published Version

Bruhwiler, L., S. Basu, J. H. Butler, A. Chatterjee, E. Dlugokencky, M. A. Kenney, A. McComiskey, S. A. Montzka, and D. Stanitski, 2021. Observations of greenhouse gases as climate indicators. Climate Change , 165 (12)doi: 10.1007/s10584-021-03001-7  Link to Published Version

Brust, C., J. S. Kimball, M. P. Maneta, K. Jencso, M. He, and R. H. Reichle, 2021. Using SMAP Soil Moisture to Constrain MOD16 Evapotranspiration Over the Contiguous USA. Remote Sensing of Environment , 255, 112277. doi: 10.1016/j.rse.2020.112277  Link to Published Version

Brust, C., J. S. Kimball, M. P. Maneta, K. Jensco, and R. H. Reichle, 2021. DroughtCast: A Machine Learning Forecast of the United States Drought Monitor. Frontiers in Big Data , 4, 114. doi:10.3389/fdata.2021.773478  Link to Published Version

Chakrabory, S., B. Guan, D. E. Waliser, A. M. da Silva, S. Uluatam, and P. Hess, 2021. Extending the Atmospheric River Concept to Aerosols: Climate and Air Quality Impacts. Geophys. Res. Lett , 48, e2020GL091827. doi: 10.1029/2020GL091827  Link to Published Version

Chattopadhyay, M., W. McCarty, and I. Moradi, 2021. Assessing Sensitivity of MERRA-2 to AMSU-A in Upper Stratosphere. Journal of Atmospheric and Oceanic Technology , 38 (3), 629-643. doi:10.1175/JTECH-D-19-0187.1  Link to Published Version

Chini, L., G. Hurtt, R. Sahajpal, S. Frolking, K. Klein Goldewijk, S. Sitch, L. Ma, L. Ott, J. Pongratz, and B. Poulter, 2021. Land-use harmonization datasets for annual global carbon budgets. Earth Syst. Sci. Data , 13, 4175-4189. doi: 10.5194/essd-13-4175-2021  Link to Published Version

Crow, W. T., R. H. Reichle, and J. Dong, 2021. Expanding the application of soil moisture monitoring systems through regression-based transformation. J. Hydrometeorology , 22 (10), 2601-2615. 10.1175/JHM-D-21-0061.1  Link to Published Version

Damiani, A., H. Irie, K. Yamaguchi, H. M. S. Hoque, T. Nakayama, Y. Matsumi, Y. Kondo, and A. da Silva, 2021. Variabilities in PM2.5 and black carbon surface concentrations reproduced by aerosol optical properties estimated by in-situ data, ground based remote sensing and modeling. Remote Sensing , 13 (16), 3163. doi:10.3390/rs13163163  Link to Published Version

DeLang, M. N., J. S. Becker, K.-L. Chang, M. L. Serre, O. R. Cooper, M. G. Schultz, S. Schröder, X. Lu, L. Zhang, M. Deushi, B. Josse, C. A. Keller, J.-F. Lamarque, M. Lin, J. Liu, V. Marécal, S. A. Strode, K. Sudo, S. Tilmes, L. Zhang, S. E. Cleland, E. L. Collins, M. Brauer, and J. J. West, 2021. Mapping Yearly Fine Resolution Global Surface Ozone through the Bayesian Maximum Entropy Data Fusion of Observations and Model Output for 1990-2017. Environ. Sci. Technol , 55 (8), 4389-4398. doi: 10.1021/acs.est.0c07742  Link to Published Version

Dezfuli, A., M. G. Bosilovich, and D. Barahona, 2021. A Dusty Atmospheric River Brings Floods to the Middle East. Geophys. Res. Lett , 48, e2021GL095441. doi: 10.1029/2021GL095441  Link to Published Version

Duncan, B. N., C. A. Malings, K. E. Knowland, D. C. Anderson, I. A. Prados, C. A. Keller, S. Pawson, and H. Ensz, 2021. Augmenting the Standard Operating Procedures of Health and Air Quality Stakeholders with NASA Resources. GeoHealth , 5, e2021GH000451. doi:10.1029/2021GH000451  Link to Published Version

EL Akkraoui, A., D. Carvalho, R. M. Errico, N. C. Prive, and M. G. Bosilovich, 2021. The role of analysis error in the convergence of reanalysis production streams in MERRA-2. Monthly Weather Review , 149 (4), 1041-1054. doi:10.1175/MWR-D-20-0256.1  Link to Published Version

Felsberg, A., G. J. M. De Lannoy, M. Girotto, J. Poeseny, R. H. Reichle, and T. Stanley, 2021. Global soil water estimates as landslide predictor: the effectiveness of SMOS, SMAP and GRACE observations, land surface simulations and data assimilation. J. Hydrometeor. , 22, 1065-1084. doi:10.1175/JHM-D-20-0228.1  Link to Published Version

Freitas, S. R., G. A. Grell and H. Li, 2021. The GF Convection Parameterization: recent developments, extensions, and applications. Geoscientific Model Development , 14, 5393–5411. doi: 10.5194/gmd-14-5393-2021  Link to Published Version

Gettelman, A., G. R. Carmichael, G. Feingold, A. M. da Silva, and S. C. Van Den Heever, 2021. Confronting Future Models with Future Satellite Observations of Clouds and Aerosols: 2020 ACCP Modeling and Assimilation Virtual Workshop. Bulletin of the Americal Meteorological Sciety , 102 (8), E1557-E1562. doi:10.1175/BAMS-D-21-0029.1  Link to Published Version

Giordano, M. R., C. Malings, S. N. Pandis, A. A. Presto, V. F. McNeill, D. M. Westervelt, M. Beekmann, and R. Subramanian, 2021. From Low-Cost Sensors to High-Quality Data: A Review of Challenges and Summary of Best Practices for Effectively Using Low-Cost Particulate Matter Mass Sensors. J. Aerosol Science , 158, 105833. doi: 10.1016/j.jaerosci.2021.105833  Link to Published Version

Girotto, M., R. H. Reichle, M. Rodell, and V. Maggioni, 2021. Data Assimilation of Terrestrial Water Storage Observations to Estimate Precipitation Fluxes: A Synthetic Experiment. Remote Sensing , 13, 1223. doi:10.3390/rs13061223  Link to Published Version

Han, S.-C., K. Ghobadi-Far, I. Y. Yeo, C. M. McCullough, E. Lee, and J. Sauber, 2021. GRACE Follow-On revealed Bangladesh was flooded by 75 giga tonnes of water unusually early in the 2020 monsoon due to untimely soil saturation. Science Advances , 118 (47), e2109086118. doi: 10.1073/pnas.2109086118  Link to Published Version

Hristova-Veleva, S., S. Q. Zhang, F. J. Turk, Z. S. Haddad, and R. C. Sawaya, 2021. Assimilation of DAWN Doppler wind lidar data during the 2017 Convective Processes Experiment (CPEX): impact on precipitation and flow structure. Atmospheric Measurement Techniques , 14 (5), 3333-3350. doi:10.5194/amt-14-3333-2021  Link to Published Version

Karpowicz, B. M., W. McCarty, and K. Wargan, 2021. Investigating the Utility of Hyperspectral Sounders in the 9.6 um Band to Improve Ozone Analyses. Quarterly Journal of the Royal Meteorological Society , 148 (742), 169-184. doi: 10.1002/qj.4198  Link to Published Version

Keller, C. A., M. Evans, K. E. Knowland, C. A. Hasenkopf, S. Modekurty, R. A. Lucchesi, T. Oda, B. B. Franca, F. C. Mandarino, M. V. D. Suarez, R. G. Ryan, L. H. Fakes, and S. Pawson, 2021. Global Impact of COVID-19 Restrictions on the Atmospheric Concentrations of Nitrogen Dioxide and Ozone. Atmospheric Chemistry and Physics , 21 (5), 3555-3592. doi:10.5194/acp-21-3555-2021  Link to Published Version

Keller, C. A., K.E. Knowland, B. N. Duncan, J. Liu, D. C. Anderson, S. Das, R. A. Lucchesi, E. W. Lundgren, J. M. Nicely, E. Nielsen, L. E. Ott, E. Saunders, S. A. Strode, P. A. Wales, D. J. Jacob, and S. Pawson, 2021. Description of the NASA GEOS Composition Forecast Modeling System GEOS-CF v1.0. Journal of Advances in Modeling Earth Systems , 13 (4), e2020MS002413. doi: 10.1029/2020MS002413  Link to Published Version

Koster, R. D., A. DeAngelis, S. D. Schubert, and A. Molod, 2021. Asymmetry in Subseasonal Surface Air Temperature Forecast Error with Respect to Soil Moisture Initialization. J. Hydrometeorology , 22 (10), 2505-2519. doi: /10.1175/JHM-D-21-0022.1  Link to Published Version

Koster, R. D., Q. Liu, R. H. Reichle, and G. Huffman, 2021. Improved Estimates of Pentad Precipitation through the Merging of Independent Precipitation Datasets. Water Resources Research , 57, e2021WR030330. doi: 10.1029/2021WR030330  Link to Published Version

Kramarova, N. A., P. A. Newman, E. R. Nash, S. E. Strahan, C. S. Long, B. Johnson, M. Pitts, M. L. Santee, I. Petropavlovskikh, L. Coy, J. De Laat, G. H. Bernhard, S. Stierle, and K. Lakkala, 2021. 2020 Antarctic ozone hole [in “State of the Climate in 2020"]. Bull. Amer. Meteor. Soc. , 102 (8), S345–S34. doi: 10.1175/BAMS-D-21-0081.1  Link to Published Version

Kramarova, N. A., J. R.Ziemke, L.-K. Huang, J. R. Herman, K. Wargan, C. J. Seftor, G. J. Labow, and L. D. Oman, 2021. Evaluation of Version 3 Total and Tropospheric Ozone Columns From Earth Polychromatic Imaging Camera on Deep Space Climate Observatory for Studying Regional Scale Ozone Variations. Front. Remote Sens. , 2, 734071. doi:10.3389/frsen.2021.734071  Link to Published Version

Kuze, A., Y. Ikehata, N. Kikuchi, F. Kataoka, K. Jucks, D. Crisp, B. Weir, and L. Ott, 2021. COVID-19 Impact Monitoring for Climate Environmnet(Greenhouse Gases). IEEE 10.1190/IGARSS47720.2021.9554328  Link to Published Version

Lan, X., S. Basu, S. Schwietzke, L. M. P. Bruhwiler, E. J. Dlugokencky, S. E. Michel, O. A. Sherwood, P. P. Tans, K. Thoning, G. Etiope, Q. Zhuan, L. Liu, Y. Oh, J. Miller, G. Pétron, B. H. Vaughn, and M. Crippa, 2021. Improved Constraints on Global Methane Emissions and Sinks using δ13C-CH4. Global Biogeochemical Cycles , 35 (6), e2021GB007000. doi: 10.1029/2021GB007000  Link to Published Version

Le Grix, N., J. Zscheischler, C. Laufkötter, C. S. Rousseaux, and T. L. Frölicher, 2021. Compound high temperature and low chlorophyll extremes in the ocean over the satellite period. Biogeosciences , 18, 2119-2137 . 10.5194/bg-18-2119-2021  Link to Published Version

Lee, J. D., F. A. Squires, T. Sherwen, S. E. Wilde, S. J. Cliff, S. J. Bauguitte, C. Reed, P. Barker, T. J. Bannand, E. Matthews, A. Mehra, C. Perciva, D. E. Heard, L. K. Whalley, G. V. Ronnie, S. Sheldon, T. Ingham, C. A. Keller, and K. E. Knowland, 2021. Ozone production and precursor emission from wildfires in Africa. Environmental Science: Atmospheres , 1, 524-542. doi: 10.1039/D1EA00041A  Link to Published Version

Li, J., A. Hauryliuk, C. Malings, S. R. Eilenberg, R. Subramania, and A. A. Presto, 2021. Characterizing the Aging of Alphasense NO2 Sensors in Long-term Field Deployments. ACS Sensors , 6 (8), 2952–2959. doi: 10.1021/acssensors.1c00729  Link to Published Version

Lim, E.-P., H. H. Hendon, A. H Butler, D. W. J. Thompson, Z. Lawrence, A. A. Scaife, T. G. Shepherd, I. Polichtchouk, H. Nakamura, C. Kobayashi, R. Comer, L. Coy, A. Dowdy, R. D. Garreaud, P. A. Newman, and G. Wang, 2021. The 2019 Southern Hemisphere stratospheric polar vortex weakening and its impacts. Bull. Amer. Meteor. Soc , 120 (6), E1150-E1171. doi: 10.1175/BAMS-D-20-0112.1  Link to Published Version

Lim, Y.-K., N. Arnold, A. M. Molod, and S. Pawson, 2021. Seasonality in prediction skill of the Madden-Julian Oscillation and associated dynamics in Version 2 of NASA’s GEOS-S2S forecast system. Journal of Geophysical Research - Atmospheres , 126 (18), e2021JD034961. doi: 10.1029/2021JD034961  Link to Published Version

Lim, Y.-K., D. L. Wu, K.-M. Kim, and J. N. Lee, 2021. An Investigation on Seasonal and Diurnal Cycles of TOA Shortwave Radiations from DSCOVR/EPIC, CERES, MERRA-2, and ERA5.. Remote Sensing , 13 (22), 4595. doi: 10.3390/rs13224595  Link to Published Version

Lin, H., D. J. Jacob, E. W. Lundgren, M. P. Sulprizio, C. A. Keller, T. M. Fritz, S. D. Eastham, L. K. Emmons, P. C. Campbell, B. Baker, R. D. Saylor, and R. Montuoro, 2021. Harmonized Emissions Component (HEMCO) 3.0 as a versatile emissions component for atmospheric models: application in the GEOS-Chem, NASA GEOS, WRF-GC, CESM2, NOAA GEFS-Aerosol, and NOAA UFS models. Geoscientific Model Development , 14, 5487-5506. doi: 10.5194/gmd-14-5487-2021  Link to Published Version

Lovenduski, N. S., A. Chatterjee, N. C. Swart, J. C. Fyfe, R. F. Keeling, and D. Schimel, 2021. On the detection of COVID-driven changes in atmospheric carbon dioxide. Geophys. Res. Lett. , 48doi:10.1029/2021GL095396  Link to Published Version

Luo, B., P. J. Minnett, P. Zuidema, N. R. Nalli, and S. Akella, 2021. Saharan dust effects on North Atlantic sea surface skin temperatures. Journal of Geophysical Research - Oceans , 126, e2021JC017282. doi: 10.1029/2021JC017282  Link to Published Version

Madani, N., N. C. Parazoo, J. S. Kimball, R. H. Reichle, A.Chatterjee, J. D. Watts, S. Saatchi, Z. Liu, A. Endsley, T. Tagesson, B. M. Rogers, A. Xu, J. A. Wang, T. Magney, and C. E. Miller, 2021. The Impacts of Climate and Wildfire on Ecosystem Gross Primary Productivity in Alaska. J. Geophys. Res. - Biogeosci. , 126, e2020JG006078. doi: 10.1029/2020jg006078  Link to Published Version

Malings, C., K. E. Knownland, C. A. Keller, and S. E. Cohn, 2021. Sub-city Scale Hourly Air Quality Forecasting by Combining Models, Satellite Observations, and Ground Measurements. Earth and Space Science , 8 (7), e2021EA001743. doi: 10.1029/2021EA001743  Link to Published Version

Manney, G. L., Z. D. Lawrence, M. L. Santee, K. Wargan, and M. J. Schwartz, 2021. A Moments View of Climatology and Variability of the Asian Summer Monsoon Anticyclone. J. Climate , 34 (19), 7821-7841. doi: 10.1175/JCLI-D-20-0729.1  Link to Published Version

Mao, J., T. Zhao, C. A. Keller, P. J. McFarland, J. M. Jenkins, and W. H. Brune, 2021. Global impact of lightning-produced oxidants. Geophys. Res. Lett , 48 (21)doi.org/10.1029/2021GL095740  Link to Published Version

Mao, J., T. Zhao, C.A. Keller, X. Wang, P.J. McFarlane, J.M. Jenkins, and W.H. Brune, 2021. Global impact of lightning-produced oxidants. Geophysical Research Letters , 48, e2021GL095740. doi:10.1029/2021GL095740  Link to Published Version

McCarty, W., D. Carvalho, I. Moradi, and N. C. Prive, 2021. Observing System Simulation Experiments Investigating Atmospheric Motion Vectors and Radiances from a Constellation of 4-5 um Infrared Sounders. Journal of Atmospheric and Oceanic Technology , 38 (2), 331-347. 10.1175/JTECH-D-20-0109.1  Link to Published Version

McCormack, J. P., V. L. Harvey, N. Pedatella, D. Koshin, K. Sato, L. Coy, S. Watanabe, C. E. Randall, F. Sassi, and L. A. Holt, 2021. Intercomparison of Middle Atmospheric Meteorological Analyses for the Northern Hemisphere Winter 2009-2010. Atmospheric Chemistry and Physics , 17577-17605doi: 10.5194/acp-21-17577-2021  Link to Published Version

McFarlane, C. , P. K. Isevulambire, R. S. Lumbuenamo, R. Dhammapala, X. Jin, V. F. McNeil, C. Malings, R. Subrmaia, and D. M. Westervelt, 2021. First measurements of ambient PM2.5 in Kinshasa, Democratic Republic of Congo and Brazzaville, Republic of Congo using field-calibrated low cost sensors. Aerosol Air Qual. Res. , 21, 200619. doi: 10.4209/aaqr.200619  Link to Published Version

McFarlane, C., G. Raheja, C. Malings, E. K. Appoh, A. F. Huges, and D. Westervelt, 2021. An Application of Gaussian Mixture Regression for the Correction of Low Cost PM2.5 Monitoring Data in Accra, Ghana. Earth and Space Science , 5 (9), 2268–2279. doi: 10.1021/acsearthspacechem.1c00217  Link to Published Version

McGrath-Spangler, E. L., M. Ganeshan, O. Reale, N. Boukachaba, W. McCarty, and R. Gelaro, 2021. Sensitivity of low tropospheric Arctic temperatures to assimilation of AIRS cloud-cleared radiances: Impact on mid-latitude waves. Quarterly Journal of the Royal Meteorological Society , 147 (741), 4032-4047. doi: 10.1002/qj.4166  Link to Published Version

Neelam, R., P. O'Neill, G. J. Huffman, R. H. Reichle, S. Chan, and A. Colliander, 2021. Evaluation of GEOS Precipitation Flagging for SMAP Soil Moisture Accuracy. Journal of Hydrometeorology , 22, 1317-1332. doi: 10.1175/JHM-D-20-0038.1  Link to Published Version

O'Brien, T. A., M. Wehner, A. Payne, C. Shields, J. Rutz, L. Leung, F. Ralph, A. Collow, et al., 2021. Increases in Future AR Count and Size: Overview of the ARTMIP Tier 2 CMIP5/6 Experiment. Journal of Geophysical Research: Atmospheres , 127 (6), e2021JD036013. doi:10.1029/2021jd036013  Link to Published Version

Peng, J., C. Albergel, A. Balenzano, L. Brocca, O. Cartus, M. Cosh, W. Crow, et al., 2021. A roadmap for high-resolution satellite soil moisture applications - confronting product characteristics with user requirements. Remote Sensing of Environment , 252, 112162. doi:10.1016/j.rse.2020.112162  Link to Published Version

Poinar, K., and L. C. Andrews, 2021. Challenges in predicting Greenland supraglacial lake drainages at the regional scale. The Cryosphere , 15, 1455-1483. doi:10.5194/tc-15-1455-2021  Link to Published Version

Privé, N. C., R.M. Errico, R. Todling, and A. El Akkraoui, 2021. Evaluation of adjoint-based observation impacts. Q. J. Roy. Meteor. Soc , 147 (734), 121-138. doi: 10.1002/qj.3909  Link to Published Version

Privé, N. C., 2021. Comment on "Use of Observing System Simulation Experiments in the U.S.". Bull. Amer. Meteor. Soc. , 102 (1), E80-E83. doi:10.1175/BAMS-D-20-0240.1  Link to Published Version

Privé, N. C., R. M. Errico, and W. McCarty, 2021. The importance of simulated errors in Observing System Simulation Experiments. Tellus A , 147, 121-138. DOI: 10.1080/16000870.2021.1886795  Link to Published Version

Qiu, J., J. Dong, W. T. Crow, X. Zhang, R. H. Reichle, and G. J. M. De Lannoy, 2021. The benefit of brightness temperature assimilation for the SMAP Level-4 surface and root-zone soil moisture analysis over mainland China. Hydrology and Earth System Sciences , 25 (3), 1569-1586. doi: 10.5194/hess-25-1569-2021  Link to Published Version

Reichle, R. H., Q. Liu, J. V. Ardizzone, W. T. Crow, G. J. M. De Lannoy, J. Dong, J. S. Kimball, and R. D. Koster, 2021. The Contributions of Gauge-Based Precipitation and SMAP Brightness Temperature Observations to the Skill of the SMAP Level-4 Soil Moisture Product. J. Hydrometeorology , 22, 405-424. doi:10.1175/JHM-D-20-0217.1  Link to Published Version

Reichle, R. H., S. Q. Zhang, Q. Liu, C. S. Draper, J. Kolassa, and R. Todling, 2021. Assimilation of SMAP Brightness Temperature Observations in the GEOS Land-Atmosphere Data Assimilation System. IEEE JSTARS , 14, 10628-10643. doi:10.1109/JSTARS.2021.3118595  Link to Published Version

Rousseaux, C. S., W. W. Gregg and L. Ott, 2021. Assessing the skills of a seasonal forecast of chlorophyll in the global oceans. Remote Sensing , 13, 1051. doi: 10.3390/rs13061051  Link to Published Version

Schubert, S. D., Y. Chang, A. M. DeAngelis, H. Wang, and R. D. Koster, 2021. On the Development and Demise of the Fall 2019 Southeast U. S. Flash Drought: Links to an Extreme Positive IOD. J. Climate , 34, 1701-1723. doi: 10.1175/JCLI-D-20-0428.1  Link to Published Version

Seo, E., M.-I. Lee and R. H. Reichle, 2021. Assimilation of SMAP and ASCAT Soil Moisture Retrievals into the JULES Land Surface Model Using the Local Ensemble Transform Kalman Filter. Remote Sensing of Environment , 253, 112222. doi:10.1016/j.rse.2020.112222  Link to Published Version

Shang, X., T. Mielonen, A. Lipponen, E. Giannakaki, A. Leskinen, V. Buchard, A. S. Darmenov, A. Kukkurainen, A. Arola, E. O'Connor, A. Hirsikko, and M. Komppula, 2021. Mass concentration estimates of long-range-transported Canadian biomass burning aerosols from a multi-wavelength Raman polarization lidar and a ceilometer in Finland. Atmospheric Measurement Techniques , 14, 6159–6179. doi: 10.5194/amt-14-6159-2021  Link to Published Version

Smith, L. C., L.C. Andrews, L.H Pitcher, B.T. Overstreet, Å.K. Rennermalm, M.G. Cooper, S.W. Cooley, J.C. Ryan, C. Miège, C. Kershner, and C.E. Simpson, 2021. Supraglacial river forcing of subglacial water storage and diurnal ice sheet motion. Geophysical Research Letters , 48, e2020GL091418. doi: 10.1029/2020GL091418  Link to Published Version

Suselj, K., J. Teixeira, M. J. Kurowski, and A. Molod, 2021. Improving the representation of subtropical boundary layer clouds in the NASA GEOS model with the Eddy-Diffusivity/Mass-Flux parameterization. Monthly Weather Review , 149 (3), 793-809. doi: 10.1175/MWR-D-20-0183.1  Link to Published Version

Thompson, A. M., R. M. Stauffer, K. Wargan, J. C. Witte, D. E. Kollonige, and J. R. Ziemke, 2021. Regional and Seasonal Trends in Tropical Ozone From SHADOZ Profiles: Reference for Models and Satellite Products. Journal of Geophysical Research: Atmospheres, , 126 (22), e2021JD034691. doi: 10.1029/2021JD034691  Link to Published Version

Wales, P. A., R. J. Salawitch, E. S. Lind, G.H. Mount, T. P. Canty, K. Chance, S. Choi, D. Donohoue, T. P. Kurosu, W. R. Simpson, and R. M. Suleiman, 2021. Evaluation of the Stratospheric and Tropospheric Bromine Burden over Fairbanks, Alaska Based on Column Retrievals of Bromine Monoxide. J. Geophys. Res. Atmos. , 126, e2020JD032896. doi: 10.1029/2020JD032896  Link to Published Version

Wang, J, B. Forman,M. Girotto, and R. H. Reichle, 2021. Estimating Terrestrial Snow Mass via Multi-sensor Assimilation of Synthetic AMSR-E Brightness Temperature Spectral Differences and Synthetic GRACE Terrestrial Water Storage Retrievals. Water Resources Research , 57, e2021WR029880. doi:10.1029/2021WR029880  Link to Published Version

Weir, B., L. E. Ott, G. J. Collatz, S. R. Kawa, B. Poulter, A. Chatterjee, T. Oda, and S. Pawson, 2021. Bias-correcting carbon fluxes derived from land-surface satellite data for retrospective and near real-time assimilation systems. Atmospheric Chemistry and Physics , 21 (12), 9609–9628. doi: 10.5194/acp-21-9609-2021  Link to Published Version

Weir, B., D. Crisp, C. O'Dell, S. Basu, A. Chatterjee, J. Kolassa, T. Oda, S. Pawson, B. Poulter, Z. Zhang, P. Ciais, S. J. Davis, Z. Liu, and L. E. Ott, 2021. Regional Impacts of COVID-19 on Carbon Dioxide Detected Worldwide from Space. Science Advances , 7 (45), eabf9415. doi: 10.1126/sciadv.abf9415  Link to Published Version

Xiao, M., S. P. Mahanama, Y. Xue, F. Chen, and D. P. Lettenmaier, 2021. Modeling Snow Ablation over the Western United States Mountains: Patterns and Controlling Factors. J. Hydrometeor. , 22 (2), 297-311. doi:10.1175/JHM-D-19-0198.1  Link to Published Version

Ye, X., P. Arab, R. Ahmadov, et al., 2021. Evaluation and intercomparison of wildfire smoke forecasts from multiple modeling systems for the 2019 Williams Flats fire. Atmospheric Chemistry and Physics , 21, 14427-14469. doi:10.5194/acp-21-14427-2021  Link to Published Version

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, 56 pp. Document (7224 kB).

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, 91 pp. Document (17397 kB).

Kemppinen, Osku, Peter R. Colarco and Patricia Castellanos, 2022. GEOS aerosol optical table calculation package GEOSmie. NASA/TM-2023-104606, Vol. 63, 81 pp. Document (3209 kB).

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, 147 pp. Document (46192 kB).

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, 45 pp. Document (6285 kB).

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, 72 pp. Document (8595 kB).

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, 32 pp. Document (404 kB).

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, 60 pp. Document (3713 kB).

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, 78 pp. Document (5255 kB).

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, 31 pp. Document (2610 kB).

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, 88 pp. Document (7722 kB).

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, 44 pp. Document (2175 kB).

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, 75 pp. Document (5002 kB).

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, 72 pp. Document (11805 kB).

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, 42 pp. Document (4892 kB).

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, 184 pp. Document (5543 kB).

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, 44 pp. Document (5922 kB).

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, 156 pp. Document (2473 kB).

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, 68 pp. Document (5623 kB).

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, 61 pp. Document (3553 kB).

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, 143 pp. Document (91522 kB).

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, 88 pp. Document (12742 kB).

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, Gordon Labow, Gary Partyka, Steven Pawson, Oreste Reale, Siegfried D. Schubert, and Max Suarez, 2015. MERRA-2: Initial Evaluation of the Climate. NASA/TM–2015–104606, Vol. 43, 139 pp. Document (20707 kB).

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, 37 pp. Document (13765 kB).

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, 40 pp. Document (623 kB).

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. Document (5812 kB).

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, 55 pp. Document (4608 kB).

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. Document (68725 kB).

Takacs, Lawrence L., Max Suarez, and Ricardo Todling, 2015. Maintaining Atmospheric Mass and Water Balance Within Reanalysis. NASA/TM–2014-104606, Vol. 37. Document (3732 kB).

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, Anton Darmenov, Ronald M. Errico, Marangelly Fuentes, Min-Jeong Kim, Randal Koster, Will McCarty, Jyothi Nattala, Gary Partyka, Siegfried Schubert, Guillaume Vernieres, Yuri Vikhliaev, and Krzysztof Wargan, 2015. Evaluation of the 7-km GEOS-5 Nature Run. NASA/TM–2014-104606, Vol. 36. Document (88612 kB).

Reichle, R. H., and Q. Liu, 2014. Observation-Corrected Precipitation Estimates in GEOS-5. NASA/TM–2014-104606, Vol. 35. Document (495 kB).

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. Document (1941 kB).

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. Document (942 kB).

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, 40 pp. Document (3247 kB).

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, 39 pp. Document (1170 kB).

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, 61 pp. Document (13707 kB).

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, 56 pp. Document (9410 kB).

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, 117 pp. Document (11776 kB).

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, 1-118 pp. Document (11978 kB).

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, 1-187 pp. Document (18124 kB).

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, 70 pp. Document (12998 kB).

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, 1-39 pp. Document (3077 kB).

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, 1-163 pp. Document (11999 kB).

Gregg, W.W., 2002. A Coupled Ocean-Atmosphere Radiative Model for Global Ocean Biogeochemical Models. Technical Report Series on Global Modeling and Data Assimilation 104606, Vol. 22, 1-31 pp. Document (2513 kB).

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. Document (2725 kB).

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. Document (8273 kB).

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. Document (1954 kB).

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. Document (8353 kB).

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. Document (8943 kB).

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. Document (3192 kB).

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. Document (1880 kB).

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. Document (2969 kB).

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. Document (16062 kB).

Chang, A., and L. Chiu, 1997. Comparison of Satellite Global Rainfall Algorithms. Technical Report Series on Global Modeling and Data Assimilation 104606, Vol. 12. Document (305 kB).

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. Document (331 kB).

Takacs, L., and M. Suarez, 1996. Dynamical Aspects of Climate Simulations Using the GEOS General Circulation Model. NASA Technical Memorandum 104606, Vol. 10. Document (3578 kB).

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. Document (2528 kB).

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. Document (363 kB).

Schubert, S. D., and R. Rood, 1995. Proceedings of the Workshop on the GEOS-1 Five-Year Assimilation. NASA Technical Memorandum 104606, Vol. 7. Document (24028 kB).

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. Document (14369 kB).

Suarez, M., and L. L. Takacs, 1995. Documentation of the Aries-GEOS Dynamical Core: Version 2. NASA Technical Memorandum 104606, Vol. 5. Document (1667 kB).

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. Document (2674 kB).

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. Document (2587 kB).

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. Document (1876 kB).

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. Document (4320 kB).

GMAO OFFICE NOTES

GMAO Office Note No. 22 (Version 1.1): Collow, A., V. Buchard, M. Chin, P. Colarco, A. Darmenov, and A. da Silva, 2023. Supplemental Documentation for GEOS Aerosol Products  Document [PDF]. See also Version 1.0 (2023).

GMAO Office Note No. 21 (Version 1.0): Wargan, K., B. Weir, 2022. File Specification for MERRA-2 Stratospheric Composition Reanalysis of Aura MLS (M2-SCREAM)  Document [PDF].

GMAO Office Note No. 20 (Version 1.1): Keller, C., H. Amos, V. Buchard, A. Darmenov, S. Shen, M. Deloria Knoll, F. Villavicencio, M. Bosilovich, 2021. File Specification for MERRA-2 Country-Level Surface PM2.5 Monthly Mean Product  Document [PDF]. See also Version 1.0 (2021). See also Version 1.0 (2021). See also Version 1.0 (2021). See also Version 1.0 (2021).

GMAO Office Note No. 19 (Version 1.3): Collow, Allison, M. Bosilovich, A. Dezfuli, and R. Lucchesi, 2023. File Specification for MERRA-2 Climate Statistics Products  Document [PDF]. See also Version 1.2 (2021). See also Version 1.2 (2021). See also Version 1.1 (2021). See also Version 1.0 (2020).

GMAO Office Note No. 18 (Version 1.0): Collow, Allison, R. Lucchesi, and A. Da Silva, 2020. File Specification for GEOS Products Sampled Along Aircraft Trajectories  Document [PDF].

GMAO Office Note No. 17 (Version 1.3): Knowland, K. Emma, C.A. Keller, and R. Lucchesi, 2020. File Specification for GEOS-CF Products  Document [PDF]. See also Version 1.2 (2022). See also Version 1.1 (2020). See also Version 1.0 (2019).

GMAO Office Note No. 16 (Version 1.0): Nakada, K., R. Kovach, J. Marshak, and A. Molod, 2018. S2S-2_1: File Specification  Document [PDF].

GMAO Office Note No. 15 (Version 1.0): Collow, A., M. Bosilovich, and R. Lucchesi, 2018. File Specification for M2AMIP Products  Document [PDF].

GMAO Office Note No. 14 (Version 1.0): Putman, W., and M. J. Suarez, 2017. Overview of the GEOS Atmospheric Model and the Challenges of Using it at Exascale  Document [PDF].

GMAO Office Note No. 13 (Version 1.0): Kimball, J.S., L. A. Jones, J. Glassy, E. N. Stavros, N. Madani, R. H. Reichle, T. Jackson, and A. Colliander, 2016. Soil Moisture Active Passive Mission L4_C Data Product Assessment (Version 2 Validated Release)  Document [PDF].

GMAO Office Note No. 12 (Version 1.0): Reichle, R., G. J. M. De Lannoy, Q. Liu, J. V. Ardizzone, F. Chen, A. Colliander, A. Conaty, W. Crow, T. Jackson, J. Kimball, R. D. Koster, and E. Brent Smith, 2016. Soil Moisture Active Passive Mission L4_SM Data Product Assessment (Version 2 Validated Release)  Document [PDF].

GMAO Office Note No. 11 (Version 2.1): Endsley, K.A., J. Glassy, J. S. Kimball, L. A. Jones, R. H., Reichle, J. V. Ardizzone, G.-K. Kim, R. A. Lucchesi, E. B. Smith, and B. H. Weiss, 2021. Soil Moisture Active Passive (SMAP) Mission Level 4 Carbon (L4_C) Product Specification Document | GMAO Office Note No. 11 (Version 2.2)  Document [PDF]. See also Version 2.1 (2021). See also Version 2.0 (2016). See also Version 1.9 (2015).

GMAO Office Note No. 10 (Version 1.6): Reichle, R.H., R. A. Lucchesi, J. V. Ardizzone, G.-K. Kim, E. B. Smith, and B. H. Weiss, 2018. Soil Moisture Active Passive (SMAP) Mission Level 4 Surface and Root Zone Soil Moisture (L4_SM) Product Specification Document  Document [PDF]. See also Version 1.5 (2018). See also Version 1.4 (2015).

GMAO Office Note No. 9 (Version 1.1): Bosilovich, M. G., R. Lucchesi, and M. Suarez, 2015. MERRA-2: File Specification  Document [PDF].

GMAO Office Note No. 8 (Version 1.0): Kouatchou, J., A. Molod, J. E. Nielsen, B. Auer, W. Putman and T. Clune, 2015. GEOS-5 Chemistry Transport Model User's Guide  Document [PDF].

GMAO Office Note No. 7 (Version 1.0): da Silva, A. M., C. A. Randles, V. Buchard, A. Darmenov, P. R. Colarco, and R. Govindaraju, 2015. File Specification for the MERRA Aerosol Reanalysis (MERRAero)  Document [PDF].

GMAO Office Note No. 6: da Silva, A.M., W. Putman, and J. Natalla, 2015. File Specification for the 7-km GEOS-5 Nature Run, Ganymed Release (Non-hydrostatic 7-km Global Mesoscale Simulation)  Document [PDF].

GMAO Office Note No. 5 (Version 1.0): Putman, W., A. M. da Silva, L. E. Ott, and A. Darmenov, 2014. Model Configuration for the 7-km GEOS-5 Nature Run, Ganymed Release (Non-hydrostatic 7-km Global Mesoscale Simulation)  Document [PDF].

GMAO Office Note No. 4 (Version 1.2): Lucchesi, R., 2018. File Specification for GEOS-5 FP (Forward Processing)  Document [PDF]. See also Version 1.1 (2017). See also Version 1.0 (2013).

GMAO Office Note No. 3: Reichle, R. H., 2012. The MERRA-Land Data Product (Version 1.2)  Document [PDF].

GMAO Office Note No. 2 (Version 1.4): Lucchesi, R., 2015. File Specification for GEOS-5 FP-IT (Forward Processing for Instrument Teams)  Document [PDF]. See also Version 1.2 (2013).

GMAO Office Note No. 1: Lucchesi, R., 2012. File Specification for MERRA Products (Version 2.3)  Document [PDF].

This is a repository of presentations from scientific conferences and workshops which list GMAO staff members as lead or co-authors. They summarize research in poster form and were displayed to share results with the conference participants. Please note that this collection is not comprehensive.

2024 POSTERS

NASA TECHNICAL PUBLICATIONS

da Silva, Arlindo, Hal Maring, Felix Seidel, Michael Behrenfeld, Richard Ferrare, and Gerald Mace, 2020. Aerosol, Cloud, Ecosystems (ACE) Final Study Report. NASA/TP-20205007337. Document (6669 kb)

SELECTED TECHNICAL PUBLICATIONS

Montzka, Carsten, M. Cosh, B. Bayat, A. Al Bitar, A. Berg, R. Bindlish, H. R. Bogena, J. D. Bolten, F. Cabot, T. Caldwell, S. Chan, A. Colliander, W. Crow, N. Das, G. De Lannoy, W. Dorigo, S. R. Evett, A. Gruber, S. Hahn, T. Jagdhuber, S. Jones, Y. Kerr, S. Kim, C. Koyama, M. Kurum, E. Lopez-Baeza, F. Mattia, K. McColl, S. Mecklenburg, B. Mohanty, P. O'Neill, D. Or, T. Pellarin, G. P. Petropoulos, M. Piles, R. H. Reichle, N. Rodriguez-Fernandez, C. Rüdiger, T. Scanlon, R. C. Schwartz, D. Spengler, P. Srivastava, S. Suman, R. van der Schalie, W. Wagner, U. Wegmüller, J.-P. Wigneron, F. Camacho, and J. Nickeson, 2020. Soil Moisture Product Validation Good Practices Protocol. Land Product Validation Subgroup (WGCV/CEOS).

BOOKS

Wang, H., S. D. Schubert, and R. D. Koster 2017. North American Drought and Links to Northern Eurasia: The Role of Stationary Rossby Waves. In Patterns of Climate Extremes: Trends and Mechanisms. S. Wang, J. Yoon, C. Funk, R. Gillies, Eds. Wiley, 195-221. DOI: 10.1002/9781119068020.ch12.

De Lannoy, G. J. M., P. de Rosnay, and R. H. Reichle (2016), Soil Moisture Data Assimilation, in Handbook of Hydrometeorological Ensemble Forecasting, edited by Q. Duan, F. Pappenberger, J. Thielen, A. Wood, H. L. Cloke, and J. C. Schaake, Springer Verlag, 1-43, Springer Verlag, New York, doi:10.1007/978-3-642-40457-3_32-1.

Bosilovich, M. G., J. Kennedy, D. Dee, R. Allan and A. O.Neill, 2013. On the Reprocessing and Reanalysis of Observations for Climate in Climate Science for Serving Society: Research, Model and Prediction Priorities. G. Asrar and J. Hurrell, Eds. Springer, 51-71. ISBN 978-94-007-6691-4.

Schubert, S. D., Y-K. Lim, 2013. Climate variability and weather extremes: model-simulated and historical data Chapter 9 in Extremes in a changing climate — detection, analysys & uncertainty. Eds. A. AghaKouchak, D. Easterling, K. Hsu, S. Schubert, S. Sorooshian, Springer. ISBN 978-94-007-4478-3

Cohn, S.E., 2010. The Principle of Energetic Consistency in Data Assimilation. Chapter 7 in Data Assimilation: Making Sense of Observations, Eds. W. Lahoz, B. Khattatov and R. Menard, Springer. DOI: 10.1007/978-3-540-74703-1

Rood, R.B., M. G. Bosilovich, 2010. Reanalysis: Data Assimilation for Scientific Investigation of Climate, in Data Assimilation: Making sense of observations, Eds. W. A. Lahoz, B. Khattotov and R. Menard, Springer. DOI: 10.1007/978-3-540-74703-1

Reichle, R. H., M. G. Bosilovich, W. T. Crow, R. D. Koster, S. V. Kumar, S. P. P. Mahanama, and B. F. Zaitchik, 2009. Recent Advances in Land Data Assimilation at the NASA Global Modeling and Assimilation Office, Chapter 21 of Data Assimilation for Atmospheric, Oceanic, and Hydrologic Applications,ed. S.-K. Park, Springer. DOI: 10.1007/978-3-540-71056-1, Chapter 21

Cohn, S.E., 2008. Energetic Consistency and Coupling of the Mean and Covariance Dynamics. Chapter 16 in Handbook of Numerical Analysis, Vol. XIV, Ed. P.G. Ciarlet, Special Volume: Computational Methods for the Atmosphere and the Oceans, Guest Eds. R. Temam and J. Tribbia, Elsevier. ISBN: 978-0-444-51893-4

CONFERENCES AND WORKSHOP PROCEEDINGS

Reichle, R., G. De Lannoy, Q. Liu, and J. Ardizzone, 2016. SMAP Data Assimilation at the GMAO. Joint Center for Satellite Data Assimilation (JCSDA) Quarterly, 53.  Link to Published Version

Zeng, X., S. Acherman, R.D. Ferraro, J.J. Murray, S. Pawson, C. Reynolds, and J. Teixiera, 2015. Workshop Report on Scientific Challenges and Opportunities in the NASA Weather Focus Area. NASA Weather Focus Area Workshop, April 2015.  Link to Published Version

Bosilovich, M. G., M. Rixen, P. van Oevelen, G. Asrar, G. Compo, K. Onogi, A. Simmons, K. Trenberth, D. Behringer, T. Hossain Bhuiyan, S. Capps, A. Chaudhuri, J. Chen, L. Chen, N. Colasacco-Thumm, M. G. Escobar, C. R. Ferguson, T. Ishibashi, M. L. R. Liberato, J. Meng, A. Molod, and co-authors, 2012. Report of the 4th World Climate Research Programme International Conference on Reanalyses. 4th World Climate Research Programme International Conference on Reanalyses, Silver Spring, Maryland, 7-11 May 2012.  Link to Published Version

Schubert, S.D., I.-S. Kang, F. Kucharski, and J. Shukla, 2009. Summary Report of the Workshop on High-Resolution Climate Modeling.. Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy, 10-14 August 2009. Document (161 kb)

Schubert, S., D. Dee, S. Uppala, J. Woollen, J. Bates, and S. Worley, 2006. Report of the Workshop on "The Development of Improved Observational Data Sets for Reanalysis: Lessons Learned and Future Directions". University of Maryland Conference Center, College Park, MD, 28-29 September 2005. Document (236 kb)

Schubert, S., 2005. Summary Report of the Workshop on: Observational and Modeling Requirements for Predicting Drought on Seasonal to Decadal Time Scales. University of Maryland Inn and Conference Center, Adelphi, MD, 17-19 May 2005. Document (229 kb)