• Version Description
  NASA Global Land Data Assimilation System Version 2 (GLDAS-2) has three components: GLDAS-2.0, GLDAS-2.1, and GLDAS-2.2. GLDAS-2.0 is forced entirely with the Princeton meteorological forcing input data and provides a temporally consistent series from 1948 through 2014. GLDAS-2.1 is forced with a combination of model and observation data from 2000 to present. GLDAS-2.2 product suites use data assimilation (DA), whereas the GLDAS-2.0 and GLDAS-2.1 products are "open-loop" (i.e., no data assimilation). The choice of forcing data, as well as DA observation source, variable, and scheme, vary for different GLDAS-2.2 products.
• DOI

  10.5067/SGSL3LNKGJWW

• Search for granules from this collection

Data Dates

Creation	2020-07-15T00:00:00.000Z
Last Revision	2020-07-15T00:00:00.000Z

Processing Level
4
Quality The data are provisional and subject to change as model improvements are implemented and new input data sets become available. Due to the fact that forcing data for Greenland are unreliable and the lack of a glacier/ice sheet model, snow water equivalent accumulates indefinitely in Greenland and a few other Arctic points. Therefore it is highly recommended that Greenland and other points with abnormally large snow water equivalent values be masked out when performing global analyses.
• Collection Progress

  Complete

• Use Constraints

  The Earth Observing System Data and Information System (EOSDIS) data use policy for NASA data can be accessed at https://earthdata.nasa.gov/earth-observation-data/data-use-policy. For information on how to properly cite and acknowledge data from the NASA GES DISC, refer to https://disc.gsfc.nasa.gov/information/documents?title=data-policy.

• Access Constraints

  None

Publication References

• Title: The Global Land Data Assimilation System

  Publication Date: 2004-01-01

  Author(s): Rodell, M., P.R. Houser, U. Jambor, J. Gottschalck, K. Mitchell, C. Meng, K. Arsenault, B. Cosgrove, J. Radakovich, M. Bosilovich, J.K. Entin, J.P. Walker, D. Lohmann, and D. Toll

  DOI: 10.1175/BAMS-85-3-381

• Title: Long-term, non-anthropogenic groundwater storage changes simulated by three global-scale hydrological models

  Publication Date: 2019-01-01

  Author(s): Li, B., Rodell, M., Sheffield, J., Wood, E. and Sutanudjaja, E.

  DOI: 10.1038/s41598-019-47219-z

Projects

Coverage Type	Zone Identifier	Geometry	Granule Representation
HORIZONTAL		CARTESIAN	CARTESIAN

Location Keywords

• • GEOGRAPHIC REGION
  • GLOBAL LAND

• NASA/GSFC/SED/ESD/GCDC/GESDISC

  ARCHIVER

  Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

  This data center does not have any addresses listed.

  This data center does not have any contact mechanisms listed.

  NASA GES DISC Website

  https://disc.gsfc.nasa.gov/
  

  • Home Page

• HUALAN RUI

  Metadata Author

  HUALAN RUI

  • Goddard Earth Sciences Data and Information Services Center
    Code 610.2
    NASA Goddard Space Flight Center
    Greenbelt, MD 20771

  301-614-5224

  301-614-5268

  Email

• GES DISC HELP DESK SUPPORT GROUP

  Data Center Contact

  GES DISC HELP DESK SUPPORT GROUP

  NASA/GSFC/SED/ESD/GCDC/GESDISC

  • Goddard Earth Sciences Data and Information Services Center
    Code 610.2
    NASA Goddard Space Flight Center
    Greenbelt, MD 20771

  301-614-5224

  301-614-5268

  Email

File Distribution Information

• Format: netCDF

  Format Type: Native

  Media: Online Archive

  Fees: No Fee