GLDAS_CLSM025_DA1_D
2.2
NASA 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 time 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). Choice of forcing data, as well as DA observation source, variable, and scheme vary for different GLDAS-2.2 products. Currently, the GLDAS-2.2 products include Data Assimilation (DA) from the Gravity Recovery and Climate Experiment (GRACE).
The GLDAS-2.2 GRACE-DA products are available in two production streams: one with GRACE-DA (the main production stream), and one without GRACE-DA (the early production stream). Since the GRACE data data have a 2-6 month latency, the GLDAS-2.2 data are first created without GRACE-DA, and are designated as Early Product (EP), with about 1 month latency. Once the GRACE data become available, the GLDAS-2.2 data are processed with GRACE-DA in the main production stream and are removed from the Early Product archive.
This data product is the main product for GLDAS-2.2 Catchment Land Surface Model daily 0.25 x 0.25 degree with GRACE-DA.
GLDAS Catchment Land Surface Model L4 daily 0.25 x 0.25 degree GRACE-DA1 V2.2 (GLDAS_CLSM025_DA1_D) at GES DISC
Li, B., H. Beaudoing, and M. Rodell, NASA/GSFC/HSL
GLDAS Catchment Land Surface Model L4 daily 0.25 x 0.25 degree GRACE-DA1 V2.2
GLDAS_CLSM025_DA1_D
2020-02-25T00:00:00.000Z
Greenbelt, Maryland, USA
Goddard Earth Sciences Data and Information Services Center (GES DISC)
2.2
Digital Science Data
DOI
10.5067/TXBMLX370XX8
https://disc.gsfc.nasa.gov/datacollection/GLDAS_CLSM025_DA1_D_2.2.html
METADATA AUTHOR
HUALAN
RUI
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
Greenbelt
MD
20771
USA
301-614-5224
Telephone
301-614-5268
Fax
Hualan.Rui@nasa.gov
EARTH SCIENCE
ATMOSPHERE
ATMOSPHERIC PRESSURE
SURFACE PRESSURE
EARTH SCIENCE
ATMOSPHERE
ATMOSPHERIC RADIATION
HEAT FLUX
EARTH SCIENCE
ATMOSPHERE
ATMOSPHERIC RADIATION
LONGWAVE RADIATION
EARTH SCIENCE
ATMOSPHERE
ATMOSPHERIC RADIATION
SHORTWAVE RADIATION
EARTH SCIENCE
ATMOSPHERE
ATMOSPHERIC TEMPERATURE
SURFACE TEMPERATURE
EARTH SCIENCE
ATMOSPHERE
ATMOSPHERIC WATER VAPOR
WATER VAPOR INDICATORS
HUMIDITY
EARTH SCIENCE
ATMOSPHERE
ATMOSPHERIC WATER VAPOR
WATER VAPOR PROCESSES
EVAPOTRANSPIRATION
EARTH SCIENCE
ATMOSPHERE
ATMOSPHERIC WINDS
SURFACE WINDS
EARTH SCIENCE
ATMOSPHERE
PRECIPITATION
LIQUID PRECIPITATION
RAIN
EARTH SCIENCE
ATMOSPHERE
PRECIPITATION
PRECIPITATION RATE
EARTH SCIENCE
ATMOSPHERE
PRECIPITATION
SOLID PRECIPITATION
SNOW
EARTH SCIENCE
LAND SURFACE
SOILS
SOIL MOISTURE/WATER CONTENT
EARTH SCIENCE
LAND SURFACE
SOILS
SOIL TEMPERATURE
EARTH SCIENCE
LAND SURFACE
SURFACE THERMAL PROPERTIES
LAND SURFACE TEMPERATURE
EARTH SCIENCE
TERRESTRIAL HYDROSPHERE
SNOW/ICE
SNOW WATER EQUIVALENT
EARTH SCIENCE
TERRESTRIAL HYDROSPHERE
SURFACE WATER
SURFACE WATER PROCESSES/MEASUREMENTS
RUNOFF
EARTH SCIENCE
TERRESTRIAL HYDROSPHERE
GROUND WATER
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Hydrology
Not provided
Catchment-LSM
Catchment Land Surface Model
NOT APPLICABLE
false
2003-02-01T00:00:00.000Z
COMPLETE
CARTESIAN
CARTESIAN
-60
90
-180
180
Not provided
GEOGRAPHIC REGION
GLOBAL LAND
GLDAS
Global Land Data Assimilation System
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.
None
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.
English
ARCHIVER
NASA/GSFC/SED/ESD/GCDC/GESDISC
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
https://disc.gsfc.nasa.gov/
DATA CENTER CONTACT
GES DISC HELP DESK SUPPORT GROUP
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
Greenbelt
MD
20771
USA
301-614-5224
Telephone
301-614-5268
Fax
gsfc-dl-help-disc@mail.nasa.gov
Online Archive
netCDF
No Fee
us-west-2
s3://gesdisc-cumulus-prod-protected/GLDAS/GLDAS_CLSM025_DA1_D.2.2/
https://data.gesdisc.earthdata.nasa.gov/s3credentials
https://data.gesdisc.earthdata.nasa.gov/s3credentialsREADME
Li, B., M. Rodell, S. Kumar, H. Beaudoing, A. Getirana, B. F. Zaitchik, et al.
2019-01-01T00:00:00.000Z
Global GRACE data assimilation for groundwater and drought monitoring: Advances and challenges
DOI
10.1029/2018wr024618
Data Author Publication
Save, H., S. Bettadpur and B. D. Tapley
2016-01-01T00:00:00.000Z
High resolution CSR GRACE RL05 mascons. Journal of Geophysical Research
DOI
10.1002/2016JB013007
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.
GLDAS-2.2 is new to the GES DISC archive and currently includes a main product from CLSM-F2.5 with Data Assimilation for the Gravity Recovery and Climate Experiment (GRACE-DA) from February 2003 to present. The GLDAS-2.2 data are available in two production streams: one with GRACE data assimilation outputs (the main production stream), and one without GRACE-DA (the early production stream). Since the GRACE data have a 2-6 month latency, the GLDAS-2.2 data are first created without GRACE-DA, and are designated as the Early Product (EP), with about 1 month latency. Once the GRACE data become available, the GLDAS-2.2 data are processed with GRACE-DA in the main production stream and are removed from the Early Product archive.
The GLDAS-2.2 GRACE-DA product was simulated with Catchment-F2.5 in Land Information System (LIS) Version 7. The data product contains 24 land surface fields from February 1, 2003 to present.
The simulation started on February 1, 2003 using the conditions from the GLDAS-2.0 Daily Catchment model simulation, forced with the meteorological analysis fields from the operational European Centre for Medium-Range Weather Forecasts (ECMWF) Integrated Forecasting System. The total terrestrial water anomaly observation from GRACE satellite was assimilated (Li et al, 2019). Due to the data agreement with ECMWF, this GLDAS-2.2 daily product does not include the meteorological forcing fields.
The GLDAS-2.2 data are archived and distributed in NetCDF format.
VIEW RELATED INFORMATION
USER'S GUIDE
https://hydro1.gesdisc.eosdis.nasa.gov/data/GLDAS/GLDAS_CLSM025_DA1_D.2.2/doc/README_GLDAS2.pdf
product README file
GET RELATED VISUALIZATION
https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/GLDAS_CLSM025_DA1_D_2.2.png
GLDAS-2.2 Catchment daily 0.25 degree root zone soil moisture [kg m-2] for Feb. 01, 2003.
DATA SET LANDING PAGE
https://disc.gsfc.nasa.gov/datacollection/GLDAS_CLSM025_DA1_D_2.2.html
Access the dataset landing page from the GES DISC website.
GET DATA
DATA TREE
https://hydro1.gesdisc.eosdis.nasa.gov/data/GLDAS/GLDAS_CLSM025_DA1_D.2.2/
Access the data via HTTPS.
GET DATA
Earthdata Search
https://search.earthdata.nasa.gov/search?q=GLDAS_CLSM025_DA1_D_2.2
Use the Earthdata Search Client (EDSC) to find and retrieve data sets across multiple data centers.
GET RELATED VISUALIZATION
GIOVANNI
https://giovanni.gsfc.nasa.gov/giovanni/#dataKeyword=GLDAS_CLSM025_DA1_D_2_2
The GES-DISC Interactive Online Visualization ANd aNalysis Interface (Giovanni) is a web-based tool that allows users to interactively visualize and analyze data.
USE SERVICE API
OPENDAP DATA
https://hydro1.gesdisc.eosdis.nasa.gov/opendap/hyrax/GLDAS/GLDAS_CLSM025_DA1_D.2.2/
Access the data via the OPeNDAP protocol.
USE SERVICE API
GRADS DATA SERVER (GDS)
https://hydro1.gesdisc.eosdis.nasa.gov/dods/GLDAS_CLSM025_DA1_D.2.2
The GrADS Data Server (GDS) is another form of OPeNDAP that provides subsetting and some analysis services across the Internet.
VIEW RELATED INFORMATION
READ-ME
https://hydro1.gesdisc.eosdis.nasa.gov/data/GLDAS/GLDAS_CLSM025_DA1_D.2.2/doc/README_GLDAS2.pdf
README Document
PROJECT HOME PAGE
https://ldas.gsfc.nasa.gov/gldas/
GLDAS Project Web Site
VIEW RELATED INFORMATION
HOW-TO
https://disc.gsfc.nasa.gov/information/howto?tags=hydrology
How to read and plot the data.
VIEW RELATED INFORMATION
GENERAL DOCUMENTATION
https://disc.gsfc.nasa.gov/information/documents?title=Hydrology%20Documentation
GES DISC Hydrology Documentation
USE SERVICE API
THREDDS DATA
https://hydro1.gesdisc.eosdis.nasa.gov/thredds/catalog/GLDAS_aggregation/GLDAS_CLSM025_DA1_D.2.2/catalog.html
Time aggregated THREDDS Data Server (TDS)
CEOS IDN DIF
VERSION 10.2
2020-02-06
2020-03-31
2020-02-25T00:00:00.000Z
2020-02-25T00:00:00.000Z
4