Global Hydrology Resource Center (GHRC)
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GHRC is one of NASA's Earth Science Data Centers and a collaboration between MSFC and the University of Alabama in Huntsville. water drop
   
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NASA ITSC

NASA Information Contact:
Rahul Ramachandran, Global Hydrology and Climate Center

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The GHRC repository is included in the Thomson Reuters Data Citation Index
 
  • LIGHTNING AND ATMOSPHERIC ELECTRICITY RESEARCHAlmost half of the lightning that the TRMM LIS instrument has observed all year came from a thunderstorm cluster on August 6, 2014 in a portion of the Sahara Desert where rain is particularly rare. Lightning data is available from Earth orbiting instruments like LIS and ground based instruments. Image credit: Owen Kelley, NASA/GSFC
  • NASA's Hurricane and Severe Storm Sentinel (HS3) has begun its third season of observations. Data from the HS3 mission will be archived at and available from the Global Hydrology Resource Center DAAC. Image credit: NASA
  • PASSIVE MICROWAVE DATANew SSM/I and SSMI/S datasets are now available from the GHRC.
  • IPHEx ER-2 Pilot, Stu Broce, flying through clouds from 65,000 feet on May 24, 2014. Some of the cells in these photos were monstrous and reached well over 50,000 feet. Stu stated, "After sunset, I got to watch the best lightning show I've ever seen, though it was the first time I've hung out over thunderstorms on purpose."
  • GROUND VALIDATION OF NASA'S GLOBAL PRECIPITATION MEASUREMENT MISSIONData from ground based and airborne instruments support validation of satellite measurements.
  • ORDER GHRC DATA WITH HYDROThe GHRC data search and order system provides easy access to all GHRC data. Search by date, time, geographic region, instrument, platform, and many other options.
  • Internal structure of Hurricane Isaac depicting precipitation intensity and lightning from LIS. Image credit: Owen Kelley, NASA/GSFC
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What's New

HS3 field campaign begins: Data to be archived at GHRC
8/19/2014 NASA's Hurricane and Severe Storm Sentinel (HS3) has begun its third season of observations ...

2DVD guide document updated to include IFloodS
8/19/2014 GHRC has updated the composite guide for GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) to include the Iowa Flood Studies (IFloodS) Field Experiment campaign information, data format and citation ...

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About the GHRC

The Global Hydrology Resource Center (GHRC) provides both historical and current Earth science data, information, and products from satellite, airborne, and surface-based instruments. GHRC acquires basic data streams and produces derived products from many instruments spread across a variety of instrument platforms. GHRC is supported by NASA and is managed jointly by the Marshall Space Flight Center's Earth Science Department and the University of Alabama in Huntsville's Information Technology & Systems Center.

 
Search and Access Data
HyDRO
We have all of the GHRC data holdings available through our search and order tool, HyDRO at http://ghrc.nsstc.nasa.gov/hydro/. If you know specifically what GHRC datasets you want, you can go directly to the Dataset List page. Please contact GHRC User Services at ghrcdaac@itsc.uah.edu if you have any questions.
Iowa Flood Studies (IFloodS)
IFloodS Field Campaign

The Iowa Flood Studies (IFloodS) experiment took place in the central to northeastern part of Iowa during the April–June 2013 period. The field campaign was the first of several hydrology-oriented field efforts to be conducted by the NASA GPM (Global Precipitation Measurement) Ground Validation (GV) program. The goals of IFloodS were to quantify the physical characteristics and space/time variability of rain; assess satellite rainfall retrieval uncertainties at instantaneous to daily time scales; assess hydrologic predictive skill as a function of space/time scales, basin morphology, and land use/cover; discern the relative roles of rainfall quantities such as rate and accumulation as compared to other factors in flood genesis; and refine appoaches to the “integrated hydrologic GV” concept based on IFloodS experiences and apply them to future GPM Integrated GV field efforts.

Lightning Imaging Sensor
Lightning Data
Two space-based instruments have collected lightning data worldwide for the past fifteen years, first the Optical Transient Detector (OTD) and later the Lightning Imaging Sensor (LIS). Using the vantage point of space, these instruments have made observations that have led researchers here at the Global Hydrology and Climate Center to make significant strides in understanding the distribution, nature, and frequency of lightning on a global scale.
Hurricane Studies
Hurricane Studies
The Convection and Moisture Experiment (CAMEX) archive provides data from the 1998 CAMEX-3 field experiment and the 2001 CAMEX-4 field experiment in Jacksonville Florida. Data is also available from the Tropical Cloud Systems and Processes (TCSP) mission in 2005 in Costa Rica and NASA African Monsoon Multidisciplinary Analyses (NAMMA) mission in 2006 in the Cape Verde Islands. These experiments produced high-resolution spatial and temporal information of hurricane structure, dynamics, and motion.
The DISCOVER Project
DISCOVER
The primary objective of the Distributed Information Services for Climate and Ocean Products and Visualizations for Earth Research (DISCOVER) Project is to provide highly accurate, long-term ocean and climate products suitable for the most demanding Earth research applications via easy-to-use display and data access tools. Global hydrological parameters such as sea surface temperature, atmospheric water vapor, wind direction, and atmospheric temperature, are derived from several passive microwave instruments aboard TRMM, NOAA-15, NOAA-16, and SSM/I satellites.

Most data are publicly available, although some restrictions apply on the distribution of commercially obtained data. All data and products are currently free of charge. Select Dataset list from the menu for a complete list of our data holdings. Please contact GHRC User Services if you need additional information or assistance in navigating these pages.