PUBLICATIONS

REFEREED PUBLICATIONS - 2012

Allen, M., D. Erickson, W. Kendall, J. Fu, L. Ott, and S. Pawson, 2012. The influence of internal model variability in GEOS-5 on interhemispheric CO2 exchange. J. Geophys. Res. - Atmos, 117, D10107. doi: 10.1029/2011JD017059. Link to Published Version

Bangert, M., A. Nenes, B. Vogel, H. Vogel, D. Barahona, V. Karydis, P. Kumar, C. Kottmeier, and U. Blakah, 2012. Saharan dust event impacts on cloud formation and radiation over Western Europe. Atmos. Chem. Phys., 12, 4045-4063. doi:10.5194/acp-12-4045-2012. Link to Published Version

Barahona, D., 2012. On the ice nucleation spectrum. Atmos. Chem. Phys., 12, 3733-3752.doi:10.5194/acp-12-3733-2012.Link to Published Version

Betancourt, R. M., D.-M. Lee, L. Oreopoulos, Y. Sud, D. Barahona, and A. Nenes, 2012. Sensitivity of cirrus and mixed-pahse clouds to the ice nuclei spectra in McRAS-AC: Single column model simulations. Atmos. Chem. Phys., 12, 10679-10692. doi:10.5194/acp-12-10679-2012. Link to Published Version

Bian, H., P. Colarco, M. Chin, G.Chen, A. R. Douglass, J. M. Rodriguez, Q. Liang, J. Warner, D. A. Chu, J. Crounse, M. J. Cubison, A. da Silva, J. Dibb, G. Diskin, H. E. Fuelberg, G. Huey, J. L. Jimenez, Y. Kondo, J. E. Nielsen, S. Pawson, and Z. Wei, 2012. Investigation of source attributions of pollution to the Western Arctic during the NASA ARCTAS field campaign. Atmos. Chem. Phys. Discuss, 12, 8823-8855. doi:10.5194/acpd-12-8823-2012. Link to Published Version

Cacio, E., S. E. Cohn, and R. Spigler, 2012. Numerical treatment of degenerate diffusion equations via Feller's boundary classification, and applications. Numer. Meth. Part. D. E., 28, 807-833. DOI: 10.1002/num.20657. Link to Published Version

Chang, Y., S. D. Schubert, and M. Suarez, 2012. Attribution of the extreme U.S. East Coast snowstorm activity of 2010. J. Climate, 25, 3771-3791. doi: 10.1175/JCLI-D-11-00353.1. Link to Published Version

Chao, W., , 2012. Correction of excessive precipitation over steep and high mountains in a GCM. J. Atmos. Sci., 69, 1547-1561.doi: 10.1175/JAS-D-11-0216.1. Link to Published Version

Choi, S., Y. Wang, R. J. Salawitch, T. Canty, J. Joiner, T. Zeng, T. P. Kurosu, K. Chance, A. Richter, L. G. Huey, J. Liao, J. A. Neuman, J. B. Nowak, J. E. Dibb, A. J. Weinheimer, G. Diskin, T. B. Ryerson, A. da Silva, J. Curry, D. Kinnison, S. Tilmes, and P. F. Levelt, 2012. Analysis of satellite-derived Arctic tropospheric BrO columns in conjunction with aircraft measurements during ARCTAS and ARCPAC. Atmos. Chem. Phys., 12, 1255-1285. doi: 10.5194/acp-12-1255-2012. Link to Published Version

Cullather, R. I., and M. Bosilovich, 2012. The Energy Budget of the Polar Atmosphere in MERRA. J. Climate, 25, 1, 5-24. doi: 10.1175/2011JCLI4138.1. Link to Published Version

De Lannoy, G. J. M., R. H. Reichle, K. R. Arsenault, P. R. Houser, S. V. Kumar, N. E. C. Verhoest, and V. R. N. Pauwels, 2012. Multiscale assimilation of Advanced Microwave Scanning Radiometer–EOS snow water equivalent and Moderate Resolution Imaging Spectroradiometer snow cover fraction observations in northern Colorado. Water Resour. Res., 48, W01522. doi:10.1029/2011WR010588. Link to Published Version

Decker, M., M. A. Brunke, Z. Wang, K. Sakaguchi, X. Zeng, and M. Bosilovich, 2012. Evaluation of the reanalysis products from GSFC, NCEP, and ECMWF using flux tower observations. J. Climate, 25, 1916-1944. doi: 10.1175/JCLI-D-11-00004.1. Link to Published Version

Draper, C. S., R. H. Reichle, G. J. M. De Lannoy, and Q. Liu, 2012. Assimilation of passive and active microwave soil moisture retrievals. Geophys. Res. Lett., 39, L04401. doi:10.1029/2011GL050655. Link to Published Version

Forman, B. A., R. H. Reichle, and M. Rodell, 2012. Assimilation of Terrestrial Water Storage from GRACE in a Snow-Dominated Basin. Water Resour. Res., 48, W01507. doi:10.1029/2011WR011239. Link to Published Version

Forman, B. A., and S. A. Margulis, 2012. Impact of covariance localization on ensemble estimation of surface downwelling longwave and shortwave radiation. J. Hydrometeorol., 13, 1301-1316. doi: 10.1175/JHM-D-11-073.1. Link to Published Version

Gettelman, A., X. Liu, D. Barahona, U. Lohmann, A. Nenes, and C. Chen, 2012. Climate impacts of ice nucleation. J. Geophys. Res.—Atmos., 117, D20201. doi:10.1029/2012JD017950. Link to Published Version

Guo, Z., P. Dirmeyer, T. DelSole, and R. Koster, 2012. Rebound in atmospheric predictability and the role of the land surface. J. Climate, 25, 4744-4749. doi: 10.1175/JCLI-D-11-00651.1. Link to Published Version

Ham, Y.-G., and M. Rienecker, 2012. Flow-dependent empirical singular vector with an ensemble Kalman filter data assimilation for El Niño prediction. Clim. Dynam., 39, 1727-1738. doi: 10.1007/s00382-012-1302-7. Link to Published Version

Ham, Y.-G., I.-S. Kang, and J.-S. Kug, 2012. Coupled bred vectors in the tropical Pacific and their application to ENSO prediction. Prog. Oceanogr., 105, 90-101. doi: 10.1016/j.pocean.2012.04.005. Link to Published Version

Ham, Y.-G., and J.-S. Kug, 2012. How well do current climate models simulate two types of El Niño?. Clim. Dynam., 39, 383-398. doi: 10.1007/s00382-011-1157-3. Link to Published Version

Ham, Y.-G., M. Rienecker, S. Schubert, J. Marshak, S.-W. Yeh, and S.-C. Yang, 2012. The Decadal Modulation of Coupled Bred Vectors. Geophys. Res. Lett., 39, L20712. doi: 10.1029/2012GL053719. Link to Published Version

Ham, Y.-G., J.-S. Kug, and M.-J. Lim, 2012. Rectification feedback of high-frequency atmospheric variability into low-frequency zonal flows in the tropical Pacific. J. Climate, 25, 5088-5101. doi: 10.1175/JCLI-D-11-00303.1. Link to Published Version

Ham, Y.-G., S. Schubert, and Y. Chang, 2012. Optimal Initial Perturbations for Ensemble Prediction of the Madden-Julian Oscillation during Boreal Winter. J. Climate, 25, 4932-4945. doi:10.1175/JCLI-D-11-00344.1. Link to Published Version

Ham, Y.-G., I.-S. Kang, D. Kim, and J.-S. Kung, 2012. El-Nino Southern Oscillation simulated and predicted in SNU coupled GCMs. Clim. Dyn., 38, 11-12, 2227–2242. doi: 10.1007/s00382-011-1171-5. Link to Published Version

Holmes, T. R. H., T. Jackson, R. Reichle, and J. Basara, 2012. An Assessment of Surface Soil Temperature Products from Numerical Weather Prediction Models Using Ground-based Measurements. Water Resour. Res., 48, W02531. doi:10.1029/2011WR010538. Link to Published Version

Houborg, R., M. Rodell, B. Li, R. H. Reichle, and B. F. Zaitchik, 2012. Drought indicators based on model-assimilated Gravity Recovery and Climate Experiment (GRACE) terrestrial water storage observations. Water Resour. Res., 48, W05525. doi:10.1029/2011WR011291. Link to Published Version

Jeong, H.-Y., D. Y. Lee, K. Ashok, J.-B. Ahn, J.-Y. Lee, J.-J. Luo, J.-K. E. Schemm, H. H. Hendon, K. Braganza, and Y.-G. Ham, 2012. Assessment of the APCC coupled MME suite in predicting the distinctive climate impacts of two flavors of ENSO during boreal winter. Clim. Dyn., 39, 475-493. doi:10.1007/s00382-012-1359-3. Link to Published Version

Jiang, X., D. E. Waliser, D. Kim, M. Zhao, K. R. Sperber, W. F. Stern, S. D. Schubert, G. J. Zhang, W. Wang, M. Khairoutdinov, R. B. Neale, and M.-I. Lee, 2012. Simulation of the intraseasonal variability over the Eastern Pacific ITCZ in climate models. Clim. Dyn., 39, 617-636. doi: 10.1007/s00382-011-1098-x. Link to Published Version

Koster, R., and S. P. Mahanama, 2012. Land-surface controls on hydroclimatic means and variability. J. Hydrometeorol., 13, 1604-1620. doi: 10.1175/JHM-D-12-050.1. Link to Published Version

Kug, J.-S., Y.-G. Ham, J.-Y. Lee, and F.-F. Jin, 2012. Improved simulation of two types of El Niño in CMIP5 models. Environ. Res. Lett., 7, 034002. doi: 10.1088/1748-9326/7/3/039502. Link to Published Version

Kug, J.-S., and Y.-G. Ham, 2012. Indian Ocean feedback to the ENSO transition in a multi-model ensemble. J. Climate, 25, 20, 6942-6957. doi: 10.1175/JCLI-D-12-00078.1. Link to Published Version

Kumar, S. V., R. H. Reichle, K. W. Harrison, C. D. Peters-Lidard, S. Yatheendradas, and J. A. Santanello, 2012. A comparison of methods for a priori bias correction in soil moisture data assimilation. Water Resour. Res., 48, W03531. doi:10.1029/2010WR010261. Link to Published Version

Lang, C., D. W. Waugh, M. A. Olsen, A. R. Douglass, Q. Liang, J. E. Nielsen, L. D. Oman, S. Pawson, and R. S. Stolarski, 2012. The impact of greenhouse gas changes on past changes in tropospheric ozone. J. Geophys. Res, 117, D23304. doi: 10.1029/2012JD018293. Link to Published Version

Langlois, T. J., B. T. Radford, K. P. Van Niel, J. J. Meeuwig, A. F. Pearce, C. S. G. Rousseaux, G. A. Kendrick, and E. S. Harvey, 2012. Consistent abundance distributions of marine fishes in an old, climatically buffered, infertile seascape. Global Ecol. Biogeogr., 21, 886-897. doi: 10.1111/j.1466-8238.2011.00734.x. Link to Published Version

Li, B., M. Rodell, B. F. Zaitchik, R. H. Reichle, R. D. Koster, and T. M. van Dam, 2012. Assimilation of GRACE terrestrial water storage into a land surface model: Evaluation and potential value for drought monitoring in western and central Europe. J. Hydrometeorol., 446-447, 103-115. doi:10.1016/j.jhydrol.2012.04.035. Link to Published Version

Li, F., D. Waugh, A. R. Douglass, P. A. Newman, S. Pawson, R. S. Stolarski, S. E. Strahan, and J. E. Nielsen, 2012. Seasonal Variations of Stratospheric Age Spectra in GEOS CCM. J. Geophys. Res, 117, D05134. doi: 10.1029/2011JD016877. Link to Published Version

Li, F., D. W. Waugh, A. R. Douglass, P. A. Newman, S. Pawson, R. S. Stolarski, S. E. Strahan, and J. E. Nielsen, 2012. Seasonal variations of stratospheric age spectra in the Goddard Earth Observing System Chemistry Climate Model (GEOSCCM). J. Geophys. Res., 117, D05134. doi: 10.1029/2011JD016877. Link to Published Version

Lim, Y.-K., Y.-G. Ham, J.-H. Jeong, and J.-J. Kug, 2012. Improvement in simulation of Eurasian winter climate variability with a realistic Arctic sea ice condition in an atmospheric GCM. Environ. Res. Lett, 7, 044041. doi: 10.1088/1748-9326/7/4/044041. Link to Published Version

Liu, X., L. Shi, K. Zhang, E. Jensen, A. Gettelman, D. Barahona, and P. Lawson, 2012. Sensitivity studies of dust ice nuclei effect on cirrus clouds with the community atmosphere model CAM5. Atmos. Chem. Phys., 12, 12061-12079. doi:10.5194/acp-12-12061-2012. Link to Published Version

Lu, J., and B. Zhao, 2012. The role of oceanic feedback in the climate response to doubling CO2. J. Climate, 25, 7544-7563. doi: 10.1175/JCLI-D-11-00712.1. Link to Published Version

Maggioni, V., R. H. Reichle, and E. N. Anagnostou, 2012. The impact of rainfall error characterization on the estimation of soil moisture fields in a land data assimilation system. J. Hydrometeorol., 13, 1107-1118. doi:10.1175/JHM-D-11-0115.1. Link to Published Version

Maggioni, V., E. N. Anagnostou, and R. H. Reichle, 2012. The impact of model and rainfall forcing errors on characterizing soil moisture uncertainty in land surface modeling.. Hydrol. Earth Syst. Sc., 16, 368-374. 10.5194/hess-16-3499-2012. Link to Published Version

Mahanama, S. P. P., B. Livneh, R. D. Koster, D. Lettenmaier, and R. H. Reichle, 2012. Soil Moisture, Snow, and Seasonal Streamflow Forecasts in the United States. J. Hydrometeorol., 13, 189-203. doi:10.1175/JHM-D-11-046.1. Link to Published Version

McCarty, W., R.M. Errico, and R. Gelaro, 2012. Cloud Coverage in the Joint OSSE Nature Run. Mon. Wea. Rev., 140, 1863–1871. doi: 10.1175/MWR-D-11-00131.1. Link to Published Version

McGrath‐Spangler, E. L., and A. S. Denning, 2012. Estimates of North American summertime planetary boundary layer depths derived from space‐borne lidar. J. Geophys. Res., 117, D15101. doi: 10.1029/2012JD017615. Link to Published Version

Molod, A., 2012. Constraints on the Profiles of total water PDF in AGCMs from AIRS and a high-resolution model. J. Climate, 25, 8341-8352.doi: 10.1175/JCLI-D-11-00412.1.Link to Published Version

Nearing, G. S., W. T. Crow, K. R. Thorp, M. S. Moran, R. H. Reichle, and H. V. Gupta, 2012. Assimilating remote sensing observations of leaf area index and soil moisture for wheat yield estimates: An observing system simulation experiment. Water Resour. Res., 48, W05525. doi:10.1029/2011WR011420. Link to Published Version

Parazoo, N. C., A. S. Denning, S. R. Kawa, S. Pawson, and R. Lokupitiya, 2012. CO2 flux estimation errors associated with moist atmospheric processes. Atmos. Chem. Phys., 12, 6405-6416. doi: 10.5194/acp-12-6405-2012. Link to Published Version

Roberts, J. B., F. R. Robertson, C. A. Clayson, and M. G. Bosilovich, 2012. Characterization of turbulent latent and sensible heat flux exchange between the atmosphere and ocean in MERRA. J. Climate, 25, 821-838. doi: 10.1175/JCLI-D-11-00029.1. Link to Published Version

Rousseaux, C. S., and W. W. Gregg, 2012. Climate variability and phytoplankton composition in the Pacific Ocean. J. Geophys. Res., 117, C10006. doi: 10.1029/2012JC008083. Link to Published Version

Seneviratne, S. I., and R. D. Koster, 2012. A revised framework for analyzing soil moisture memory in climate data: Derivation and interpretation. J. Hydrometeorol., 13, 1525-755X. doi: 10.1175/JHM-D-11-044.1. Link to Published Version

Strode, S., L. Ott, S. Pawson, and T. W. Bowyer, 2012. Emission and transport of cesium-137 from boreal biomass burning in the summer of 2010. J. Geophys. Res., 117, D09392. doi: 10.1029/2011JD017382. Link to Published Version

Vinukollu, R. K., J. Sheffield, E. F. Wood, M. Bosilovich, and D. Mocko, 2012. Multimodel analysis of energy and water fluxes: Intercomparisons between operational analyses, a land surface model, and remote sensing. J. Hydrometeorol., 13, 3-26. doi: 10.1175/2011JHM1372.1. Link to Published Version

Wei, J., P. A. Dirmeyer, M. Bosilovich, and R. Wu, 2012. Water vapor sources for Yangtze River valley rainfall: Climatology, variability, and implications for rainfall forecasting. J. Geophys. Res., 117, D05126. doi: 10.1029/2011JD016902. Link to Published Version

Wu, M.-L. C., O. Reale, S. Schubert, M. Suarez, and C. Thorncroft, 2012. African Easterly Jet: barotropic instability, waves and cyclogenesis. J. Climate, 25, 5, 1489-1510. doi:10.1175/2011JCLI4241.1. Link to Published Version

Xue, Y., M. Balmaseda, T. Boyer, N. Ferry, S. Good, I. Ishikawa, A. Kumar, M. Rienecker, A. Rosati, and Y. Yin, 2012. A comparative analysis of upper ocean heat content variability from an ensemble of operational ocean reanalyses. J. Climate, 25, 6905-6929. doi: 10.1175/JCLI-D-11-00542.1. Link to Published Version

Yeh, S.-W., Y.-G. Ham, and J.-Y. Lee, 2012. Changes in the tropical Pacific SST trend from CMIP3 to CMIP5 and its implication of ENSO. J. Climate, 25, 7764-7771. doi: 10.1175/JCLI-D-12-00304.1. Link to Published Version

TECHNICAL MEMORANDA

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).

OFFICE NOTES

GMAO Office Note No. 16 (Version 1.0): Nakada, K., 2018. S2S-2_1: File Specification  Document [PDF].

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

GMAO Office Note No. 14 (Version 1.0): Putman, W., 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., 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., 2016. Soil Moisture Active Passive Mission L4_SM Data Product Assessment (Version 2 Validated Release)  Document [PDF].

GMAO Office Note No. 11 (Version 2.0): Glassy, J., 2016. Soil Moisture Active Passive (SMAP) Mission Level 4 Carbon (L4_C) Product Specification Document  Document [PDF]. See also Version 1.9 (2015).

GMAO Office Note No. 10 (Version 1.5): Reichle, R. H., 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 1.4 (2015).

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

GMAO Office Note No. 8 (Version 1.0): Kouatchou, J., 2015. GEOS-5 Chemistry Transport Model User's Guide  Document [PDF].

GMAO Office Note No. 7 (Version 1.0): da Silva, A. M., 2015. File Specification for the MERRA Aerosol Reanalysis (MERRAero)  Document [PDF].

GMAO Office Note No. 6: da Silva, A.M., 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., 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: Lucchesi, R., 2013. File Specification for GEOS-5 FP (Forward Processing)  Document [PDF].

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].

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)

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.

2018 POSTERS

☆ AGU 2018 Fall Meeting, Washington, D.C.    12/10/2018 - 12/14/2018

— Pending —

☆ 9th International Workshop on Air Quality Forecasting Research (IWAQFR), Boulder    11/07/2018 - 11/09/2018

Keller, Christoph, Machine Learning Application to Atmospheric Chemistry Modeling

☆ Ocean Salinity Science Conference, Paris    11/06/2018 - 11/09/2018

Hackert, Eric, Impact of Satellite Sea Surface Salinity Observations on ENSO Predictions from the GMAO S2S Forecast System

☆ Stratosphere-troposphere Processes And their Role in Climate (SPARC) 2018 General Assembly    10/01/2018 - 10/05/2018

Coy, Lawrence, Global Assimilation of Loon Stratospheric Balloon Observations

Pawson, Steven, The Stratospheric Warming of 2018 in the Context of the Earth System

Wargan, Krzysztof, Long-term Ozone Variability and Trends from Reanalyses

☆ 15th International Global Atmospheric Chemistry (IGAC) Science Conference, Takamatsu    09/25/2018 - 09/29/2018

Saunders, Emily, GEOS-CF Model Assessment of PM2.5 During Wildfires: Inferring the Impact of PM2.5 Exposure on Adverse Respiratory and Cardiovascular Conditions

☆ Second International Conference on Subseasonal to Decadal Prediction, Boulder    09/17/2018 - 09/21/2018

Achuthavarier, Deepthi, Prediction skill of the MGO teleconnection signals in the NASA GEOS subseasonal reforecasts

Hackert, Eric, Impact of Satellite Sea Surface Salinity Observations on ENSO Predictions from the GEOS GMAO S2S Forecast System

Molod, Andrea, GEOS S2S-2_1: The GMAO High Resolution Seasonal Prediction System

☆ ECMWF Workshop: Radiation in the next generation of weather forecast models, Reading     05/21/2018 - 05/24/2018

Norris, Peter, Lessons learned in GCM clear-sky LW flux validation

☆ Bridging Sustained Observations and Data Assimilation for TPOS 2020, Boulder    05/01/2018 - 05/03/2018

Hackert, Eric, Impact of Aquarius and SMAP Sea Surface Salinity Observations on Seasonal Predictions of the 2015 El Nino

☆ 33rd Conference on Hurricanes and Tropical Meteorology, Ponte Vedra    04/16/2018 - 04/20/2018

Lim, Young-Kwon, The Roles of Climate Change and Climate Variability in the 2017 Atlantic Hurricane Season

☆ EGU General Assembly 2018, Vienna    04/08/2018 - 04/13/2018

Strobach, Ehud, Comparison of MERRA-2 and ECCO-v4 ocean surface heat fluxes: Consequences of different forcing feedbacks on ocean circulation and implications for climate data assimilation

☆ SOLAS: Remote Sensing for Studying the Ocean-Atmosphere Interface, Potomac    03/13/2018 - 03/15/2018

Akella, Santha, Near-Real Time Ocean-Atmosphere Skin Temperature as part of NASA GMAO Atmospheric Data Assimilation System

Hackert, Eric, The Impact of Satellite Sea Surface Salinity for Prediction of the Coupled Indo-Pacific System

☆ AGU Ocean Science Meeting, Portland    02/11/2018 - 02/16/2018

Borovikov, Anna, GEOS-5 Seasonal Forecast System: ENSO Prediction Skill and Bias

Kovach, Robin, Impact of Aquarius and SMAP Sea Surface Salinity Observations on Seasonal Predictions of the 2015 El Nino

☆ AMS 2018, Austin    01/07/2018 - 01/11/2018

Achuthavarier, Deepthi, Prediction and Predictability of the Madden Julian Oscillation in the NASA GEOS-5 Seasonal-to-Subseasonal System

Borovikov, Anna, GEOS-5 Seasonal Forecast System: ENSO Prediction Skill and Bias

Chang, Yehui, A Realization of Bias Correction Method in the GMAO Coupled System

Draper, Clara, Observation error specification for near-surface soil moisture assimilation: does it matter?

Kim, Min-Jeong, Examining Dense Data Usage near the Regions with Severe Storms in All-Sky Microwave Radiance Data Assimilation and Impacts on GEOS Hurricane Analyses

Li, Zhao, Winter Precipitation in North America and the Pacific-North America pattern in GEOS-S2Sv2 Seasonal hindcast

Ott, Lesley, NASA's Carbon Cycle OSSE Initiative - Informing future space-based observing strategies through advanced modeling and data assimilation

Prive, Nikki, Performance and Evaluation of the Global Modeling and Assimilation Office Observing System Simulation Experiment

Weir, Brad, Tracer transport differences: Challenges and implications for flux inversions