About the GHRC


The mission of the Global Hydrometeorology Resource Center (GHRC) DAAC is to provide a comprehensive active archive of both data and knowledge augmentation services with a focus on hazardous weather, its governing dynamical and physical processes, and associated applications. Within this broad mandate, GHRC will focus on lightning, tropical cyclones and storm-induced hazards through integrated collections of satellite, airborne, and in-situ data sets.



The GHRC is a partnership between NASA Marshall Space Flight Center (MSFC) and The University of Alabama in Huntsville (UAH), and is located at the National Space Science and Technology Center (NSSTC) on the UAH campus.  The NSSTC houses the NASA MSFC Earth Science Office, the local office of National Weather Service, UAH professors, researchers and students, and other partners.

The GHRC was initially established as the Marshall Distributed Active Archive Center (DAAC) in 1991 at the beginning of NASA’s Earth Observing System Data and Information System (EOSDIS) program.  Today, Dr. Manil Maskey, an Earth science informatics researcher at MSFC, serves as GHRC DAAC Manager.  All other GHRC staff are employed by UAH and matrixed from within the Information Technology and Systems Center (ITSC), under direction of Dr. Sara Graves.


Current Data Holdings  

Key Data Holdings of the GHRC DAAC are described below. All data are accessible from the GHRC Search Portal.

Data Collection Description
Lightning Observations
from Space

Daytime and nighttime observations of cloud-to-ground and intra-cloud lightning from NASA’s Lightning Imaging Sensor (on TRMM and ISS) and Optical Transient Detector (on Orbview-1)


Distributed Information Services for Climate and Ocean Products and Visualizations for Earth Research (DISCOVER) Making Earth Science Data Records for Use in Research Environments (MEaSUREs) provides atmospheric and ocean products derived from satellite microwave radiometer measurements and delivered as a package of inter-related geophysical parameters, including:

  • sea surface wind speeds
  • atmospheric water vapor
  • cloud liquid water
  • rain rates
Hurricane Science and
Field Campaigns

Airborne and ground-based observations of tropical cyclones and cyclogenesis collected during a series of campaigns from 1998 to the present

GPM Ground Validation
Field Campaigns

Precipitation datasets from ground and airborne instruments supporting physical validation of satellite-based precipitation retrieval algorithms, from targeted observations in different precipitation regimes (2010-2016)


GHRC Search Portal

GHRC is in the process of moving its data holdings to the cloud. The GHRC Search Portal offers access to cloud-based datasets as well as resources to help guide data users in discovering, accessing, and utilizing cloud data. The GHRC Search Portal can be found at https://search.earthdata.nasa.gov/portal/ghrc/search. For questions, please see GHRC Search Portal Help.


Earthdata CMR

The Earthdata Common Metadata Repository (CMR) is a high-performance, high-quality, continuously evolving metadata system that catalogs Earth Science data and associated service metadata records. These metadata records are registered, modified, discovered, and accessed through programmatic interfaces leveraging standard protocols and APIs. Use CMR to search and in helping to narrow down the data you need, over the spatial and temporal parameters desired, by platform, provider, or collection ID, and much more. For details check out the CMR API documentation.

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