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Global Hydrology Resource Center (GHRC) provides both historical
and current Earth science data, information, and products from
satellite, airborne, and surface-based instruments. The GHRC
acquires basic data streams and produces derived products from
many instruments spread across a variety of instrument platforms.
The GHRC is supported by NASA and is the data management and
user services arm of the Global Hydrology & Climate Center
(GHCC) in Huntsville, Alabama.
The GHRC is a member of the
DAAC Alliance. The NASA Distributed Active Archive Centers
(DAACs) are the data management and user services branches
of NASA's Earth Observing System Data and Information System
(EOSDIS). The DAACs process, archive, document, and distribute
data from NASA's past and current Earth science research satellites
and field measurement programs. In an effort to continually
provide improved data services to the science community the
DAACs have begun offering more online data and services. These
online repositories have been termed “Data Pools”.
The Data Pool is a concept that was proposed by the Science
Working Group on Data (SWGD). Data Pools use a large (i.e.,
many TB) disk cache at each DAAC to hold EOS data after initial
insertion for an extended period (varies depending on the
data and pool resources). The contents of the cache are tuned
to the needs of the user community. The goal is to increase
the distribution capacity of the EOS Data and Information
System (EOSDIS) Core System (ECS) by a factor of five by significantly
reducing the need to access a tape archive. In addition, user
access to this data should be made faster and easier.
The GHRC Data Pool provides online access to
Passive Microwave data through conventional FTP or through
more customized capabilities allowing users to search for
specific data products and then choose to have their ordered
packaged for download.
You are currently at the GHRC Data Pool, but
the other DAACs each are providing their own Data Pool implementations.
See the links below to visit the other pools.
Other DAAC Data Pools
Goddard Earth Sciences DAAC - http://daac.gsfc.nasa.gov/data/datapool/
Langley Land Processes DAAC - http://eosweb.larc.nasa.gov/HPDOCS/datapool/
National Snow and Ice Data Center (NSIDC) DAAC - http://nsidc.org/data/data_pool/
Earth Resources Observation Systems Data Center (EDC) - http://edcdaac.usgs.gov/tutorial/datapool.html
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