MC3E logoGHRC has published the GPM Ground Validation NOAA UHF 449 Profiler Raw Data SPC dataset. Using a phased array antenna configured to only point in the vertical direction, during MC3E the 449 MHz profiler measured the vertical air motion from approximately 200 to 2000 meters above the ground when precipitation passed over the profiler site. The original SPC format requires specialized commercial read software. The companion GPM Ground Validation NOAA UHF 449 Profiler MC3E dataset, a netCDF version, contains the exact same raw data values. Additionally this dataset has been recently updated to include processed data and available browse.


OTD LIS heritage figureThe Lightning Imaging Sensor (LIS) Science Team announces the release of version 2.3.2011 of the LIS/OTD Climatology data sets. The LIS/OTD Climatology data sets consist of gridded climatologies of total lightning flash rates seen by the spaceborne Optical Transient Detector (OTD) and Lightning Imaging Sensor (LIS). These data sets can be ordered from the GHRC DAAC using HyDRO.

More information on the LIS/OTD Climatology data sets can be found at


GCPEX logoNASA is currently flying an airborne science laboratory above Canadian snowstorms to tackle a difficult challenge facing the upcoming Global Precipitation Measurement (GPM) satellite mission -- measuring snowfall from space. Working with Environment Canada, NASA's GPM Cold-season Precipitation Experiment (GCPEx) is measuring light rain and snow in Ontario from Jan. 17 to Feb. 29.

More information on the GCPEx Experiment can be found at


MC3E logoThe Midlatitude Continental Convective Clouds Experiment (MC3E) took place in central Oklahoma April–May 2011. The experiment was a collaborative effort between the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Climate Research Facility and the National Aeronautics and Space Administration’s (NASA) Global Precipitation Measurement (GPM) mission Ground Validation (GV) program.

The field campaign leveraged the unprecedented observing infrastructure currently available in the central United States, combined with an extensive sounding array, remote sensing and in situ aircraft observations, NASA GPM ground validation remote sensors, and new ARM instrumentation purchased with American Recovery and Reinvestment Act funding. The overarching goal was to provide the most complete characterization of convective cloud systems, precipitation, and the environment that has ever been obtained, providing constraints for model cumulus parameterization's and space-based rainfall retrieval algorithms over land that have never before been available.

The GHRC is the archive and distribution center for ground validation data collected during the MC3E Experiment.

More information on the MC3E Experiment can be found at


GRIP logoThe Genesis and Rapid Intensification Processes (GRIP) experiment was a NASA Earth science field experiment conducted August 5 to September 30, 2010. The major goal was to better understand how tropical storms form and develop into major hurricanes. NASA used the DC-8 aircraft, the WB-57 aircraft and the Global Hawk Unmanned Airborne System (UAS), configured with a suite of in situ and remote sensing instruments that were used to observe and characterize the lifecycle of hurricanes. This campaign also capitalized on a number of ground networks and space-based assets, in addition to the instruments deployed on aircraft from Ft. Lauderdale, Florida (DC-8), Houston, Texas (WB-57), and NASA Dryden Flight Research Center, California (Global Hawk).
Data from the GRIP field experiment is now available at the GHRC.
More information on the GRIP field experiment can be found at


Have you used our data? Register for updates