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EPOCH 2017 Global Hawk QC Dropsonde Data


The East Pacific Origins and Characteristics of Hurricanes (EPOCH) was a NASA funded research campaign aimed at studying tropical storms in the Northern Hemisphere in order to learn more about conditions that drive changes in intensity, and to use the data to improve forecasting models that predict tropical storm impacts on coastal communities.  The project planned six research flights of the NASA Global Hawk conducted between August 1 and August 30, 2017 with 50% of the flights supported through a partnership with the NOAA UAS Program Office based from NASA Armstrong Flight Research Facility. Only three research flights were flown during the field campaign.  This data set contain all 216 quality controlled dropsondes deployed from those three flights.

Data access

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Additional information

Data Quality final
  • 0.1 (2017-09-06)
  • 1.0 (2018-02-27)
(Only the current version of the data is available to order. If you have questions about a prior version, please email us.)
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Language English
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Temporal coverage

Begin datetime 2017-02-28 00:00:00
End datetime 2017-08-31 14:48:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 33.00, Minimum (South) Latitude: 18.00
Minimum (West) Longitude: -125.00, Maximum (East) Longitude: -83.00

Primary point of contact information

EOL Data Support <>


Example citation following ESIP guidelines:

UCAR/NCAR - Earth Observing Laboratory. 2018. EPOCH 2017 Global Hawk QC Dropsonde Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 14 Jul 2020.

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