The Hurricane and Severe Storm Sentinel (HS3) was a five-year NASA mission specifically targeted to investigate the processes that underlie hurricane formation and intensity change in the Atlantic Ocean basin. The project aimed to assess the relative storm development roles of large-scale environment and storm-scale internal processes, to address the controversial role of the Saharan Air Layer (SAL) in tropical storm formation and intensification, and to study the role of deep convection in the inner-core region of storms. To achieve these goals, sustained measurements over several years were needed. Field measurements took place for one month during each hurricane season from 2012 through 2014. The HS3 campaign utilized two NASA Global Hawk unmaned aircraft, one fitted with instruments geared toward measurement of the environment and the other containing instruments suited to measurement of inner-core structure and processes. The environmental payload had the scanning High-resolution Interferometer Sounder (S-HIS), the Cloud Physics Lidar (CPL), and the AVAPS dropsonde system; the over-storm payload included the HIWRAP conically scanning Doppler radar, the HIRAD multi-frequency interferometric radiometer, and the HAMSR microwave sounder. More information about the HS3 campaign can be found at

To cite the entire collection, please use the following:

Braun, Scott, Paul Newman. 2018. Hurricane and Severe Storm Sentinel (HS3) Data Collection [inicate subsset used]. Data available online [] from the NASA EOSDIS Global Hydrology Resource Center Distributed Active Archive Center, Huntsville, Alabama, U.S.A. doi:

For more information on GHRC DAAC citations, see these Instructions for citing GHRC data.

General Characteristics

Collections: HS3
Projects: Earth Venture Mission
Platforms: NASA Global Hawk, WB-57
Sensors/Instruments: AVAPS, S-HIS, CPL, HIWRAP, HIRAD, HAMSR
Parameters: precipitation, atmospheric pressure, atmospheric water vapor, clouds, atmospheric winds, atmospheric temperatures, microwave observations, radar reflectivity
Processing level: 4>
Formats:  netCDF-3/CF, netCDF-4, ASCII, netCDF-4/CF, ASCII-IWG1, ASCII-eol, HDF-5


[coverage map]
Red dots or areas indicate coverage range.


Location: North Atlantic Ocean
Spatial resolution: 2.5 km
North boundary: 45°
West boundary: -120°
East boundary: -60°
South boundary: 12°
Temporal resolution: <sec to daily
Start date: Sept 2012
Stop date: Oct 2014

Member Datasets and More Information

Hurricane and Severe Storm Sentinel (HS3) Scanning High-Resolution Interferometer Sounder (S-HIS)

Hurricane and Severe Storm Sentinel (HS3) Global Hawk Advanced Vertical Atmospheric Profiling System (AVAPS) Dropsonde System

Hurricane and Severe Storm Sentinel (HS3) Global Hawk Cloud Physics Lidar (CPL)

Hurricane and Severe Storm Sentinel (HS3) High-altitude Imaging Wind and Rain Airborne Profiler (HIWRAP)

Hurricane and Severe Storm Sentinel (HS3) Hurricane Imaging Radiometer (HIRAD)

Hurricane and Severe Storm Sentinel (HS3) Global Hawk High Altitude MMIC Sounding Radiometer (HAMSR)


PI Documentation:
BAMS Publication: NASA's Hurricane and Severe Storm Sentinel (HS3) Investigation, Braun et al.
Digital Object Identifier
Instructions for citing GHRC data.

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