NEWS

GLDAS products introduced at ASPRS Conference

04.28.2008 - Hongliang Fang of the GES DISC presents the GLDAS products to the remote sensing community in a poster session at The American Society for Photogrammetry and Remote Sensing 2008 Conference, April 28 to May 2, 2008, in Portland, Oregon. The GLDAS terrestrial hydrology products are introduced in support of this year's ASPRS theme, "Bridging the Horizons - New Frontiers in Geospatial collaboration."

Monthly 0.25 degree Noah products accessible from the GrADS Data Server (GDS)

04.23.2008 - The monthly 0.25 degree Noah products are now provided to the GrADS Data Server (GDS) users. GDS users can perform subsetting and analysis operations across the internet. The GLDAS GDS information page will direct you to the locations where GDS enabled GLDAS data are stored.

Monthly 0.25 degree Noah products available from HDISC

04.16.2008 - Global monthly averaged 0.25 degree Noah products from the Global Land Data Assimilation System (GLDAS) are now available from the Hydrology DISC (HDISC). The monthly 0.25 degree Noah products are generated from temporal averaging of the 3-hourly products. This data set covers the period from 2000 to the present. These products can be downloaded from:

http://disc.gsfc.nasa.gov/hydrology/hydro_get_data.shtml.

Besides anonymous ftp downloading, the 0.25 degree monthly Noah products can be searched for and downloaded with the Mirador service. Mirador uses keywords to find data quickly in a Google-like interface. Mirador enables the batch downloading of multiple products by users.

GLDAS products available from the GrADS Data Server (GDS)

02.20.2008 - 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. The core of the GDS is OPeNDAP, a software framework used for data networking that makes local data accessible to remote locations. The GDS subsetting capability allows users to retrieve a specified temporal and/or spatial subdomain from a large dataset, eliminating the need to download everything simply to access a small relevant portion of a dataset. The GDS analysis capability allows users to retrieve the results of an operation applied to one or more datasets on the server. Examples of analysis operations include basic math functions, averages, smoothing, differencing, correlation, and regression; the GDS supports any operation that can be expressed in a single GrADS expression.

Reprocessed NOAH 3-hourly quarter degree data now Available From the HDISC

10.20.2007 - The data set "GLDAS Noah Land Surface Model L4 3 Hourly 0.25 x 0.25 degree Subsetted V001 (GLDAS_NOAH025SUBP_3H) at GES DISC" has been reprocessed to incorporate a new parameter, Snowmelt, and is now available at the GES DISC. For users who have previously downloaded this data set, it isn't necessary to download the reprocessed version unless you need the snowmelt parameter.

Monthly Averaged GLDAS Data now Available From the HDISC

10.05.2007 - The monthly averaged products are generated from temporal averaging of the 3-hourly products. Currently, HDISC distributes 1.0 degree resolution monthly data from 1979 to present for four land surface models (CLM, Mosaic, Noah and VIC). These products can be downloaded from http://disc.sci.gsfc.nasa.gov/hydrology/hydro_get_data.shtml.

Besides anonymous ftp downloading, both 3-hourly and monthly GLDAS products can now be searched for and downloaded with the Mirador service. Mirador uses keywords to find data quickly in a Google-like interface. Mirador allows batch downloading of multiple products by users. Parameter and spatial subsetting and temporal averaging will soon be available in a forthcoming release of HDISC.

GLDAS Data now Available From the HDISC

08.16.2007 - GSFC's Hydrological Sciences Branch (HSB) and Goddard Earth Sciences Data and Information Services Center (GES DISC) are pleased to announce the release of Global Land Data Assimilation System (GLDAS) Data Product.

The GLDAS Data Products consist of time series of land surface state (e.g., soil moisture and surface temperature) and flux (e.g., evaporation and sensible heat flux) parameters simulated by four land surface models (CLM, MOSAIC, NOAH and VIC). The 1.0 degree resolution data range from 1979 to present for the four models. The 0.25 degree data cover 2000 to present from the NOAH model. These products can be downloaded from the access link below. Temporal averaging and spatial subsetting will soon be available through an automated data server.

GLDAS data are available through:

Data access link: http://disc.sci.gsfc.nasa.gov/hydrology/hydro_get_data.shtml

WESP-GLDAS Working Group

GLDAS is a new component of the GEWEX Hydrometeorology Panel's (GHP) Water and Energy Simulations and Prediction (WESP) Working Group. The first report of WESP-GLDAS is available from http://www.gewex.org/pan-gewex_meeting.htm under the list of GHP working groups. The purpose of WESP-GLDAS is to coordinate global land modeling activities and share data, towards the goal of improved understanding and prediction of the land surface water and energy cycles at the global scale.