Abstract:
The Modern-Era Retrospective Analysis for Research and Applications (MERRA) is a state-of-the-art reanalysis data product that provides, in addition to atmospheric fields, global estimates of soil moisture, latent heat flux, snow, and runoff for 1979-present. A supplemental and improved set of land surface hydrological fields (MERRA-Land) was generated by re-running a revised version of the land ... component of the MERRA system (Reichle et al., 2012). Specifically, the MERRA-Land estimates benefit from corrections to the precipitation forcing with the global gauge-based NOAA Climate Prediction Center Unified (CPCU) precipitation product and from revised parameter values in the rainfall interception model, changes that effectively correct for known limitations in the MERRA surface meteorological forcings. With a few exceptions, the MERRA-Land data appear more accurate than the original MERRA estimates and are thus recommended for those interested in using MERRA output for land surface hydrological studies.
The MERRA-Land product, MSTUNXMLD or tavgU_2d_mld_Nx, is a simulated 2-Dimensional diurnal at the native resolution. All collections from this group are at reduced horizontal resolution.
The data are on the GEOS-5 native 540 x 361 grid with 2/3° longitude x 1/2° latitude resolution. Data are archived in the HDF-EOS (Grid) format, based on HDF4.
Description:
The GrADS Data Server (GDS, formerly known as GrADS-DODS Server) is a stable, secure data server that provides subsetting and analysis services across the internet.
Description:
The Simple Subset Wizard (SSW) is designed to provide a simple, unified user interface for submitting subset requests for data. The SSW uses an agent-based architecture to interface with the diversity of subsetters across EOSDIS.
DANA
OSTRENGA Role:
TECHNICAL CONTACT
Role:
DIF AUTHOR
Phone:
301-614-5475
Email:
dana.m.ostrenga at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Code 610.2 City:
Greenbelt
Province or State:
MD
Postal Code:
20771
Country:
USA
ROLF
H.
REICHLE Role:
INVESTIGATOR
Phone:
3301-614-5693
Fax:
301 614-6246
Email:
rolf.h.reichle at nasa.gov
Contact Address:
NASA
Goddard Space Flight Center
Mailstop 610.1 City:
Greenbelt
Province or State:
MD
Postal Code:
20771
Country:
USA
Publications/References
*Reichle, R. H., R. D. Koster, G. J. M. De Lannoy, B. A. Forman, Q. Liu, S. P. P. Mahanama, and A. Toure, 2011: Assessment and enhancement of MERRA land surface hydrology estimates, Journal of Climate, 24, 6322-6338, doi:10.1175/JCLI-D-10-05033.1.
* Bloom, S., L. Takacs, A. DaSilva, and D. Ledvina, 1996: Data assimilation using incremental analysis updates. Mon. Wea. Rev., 124, 1256-1271.
* 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, v26.
* Collins, N., G. Theurich, C. DeLuca, M. Suarez, A. Trayanov, V. Balaji, P. Li, W. Yang, C. Hill, and A. da Silva, 2005: Design and implementation of components in the Earth System Modeling Framework. Int. J. High Perf. Comput. Appl., 19, 341-350, DOI: 10.1177/1094342005056120.