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Description

The GPM Ground Validation Advanced Vertical Atmospheric Profiling System (AVAPS) OLYMPEX dataset contains dropsonde vertical profiles of atmospheric pressure, air temperature, dew point temperature, relative humidity, wind direction and magnitude, and sensor location obtained during the Olympic Mountains Experiment (OLYMPEX). The AVAPS dropsondes were released during specific NASA DC-8 aircraft flights between November 12, 2015 and December 19, 2015. A total of 53 standard research dropsondes were launched in the Pacific ocean off the coast of Washington state collecting atmospheric profile observations. The AVAPS datasets are available in ASCII-eol text format.

Product Summary

Platforms
NASA DC-8
Instruments
AVAPS
Spatial Extent

N: 48.202 S: 46.2982 E: -124.564 W: -128.876

Location
WASHINGTON
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2015-11-12 to 2015-12-19
Data Partner
Global Hydrometeorology Resource Center, Marshall Space Flight Center, NASA (NASA/MSFC/GHRC)
Concept ID
C1979129320-GHRC_DAAC
Data State
COMPLETE
Number of Files/Granules
53
Processing Level
2
Published
Updated
Science Keywords
Atmospheric Pressure Measurements ,
Upper Air Temperature ,
Dew Point Temperature ,
Relative Humidity ,
U/V Wind Components ,
Flight Level Winds ,
Wind Direction ,
Wind Speed

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Terry Hock, K. Y. (2025). GPM Ground Validation Advanced Vertical Atmospheric Profiling System (AVAPS) OLYMPEX [Data set]. NASA Global Hydrometeorology Resource Center Distributed Active Archive Center. https://doi.org/10.5067/GPMGV/OLYMPEX/AVAPS/DATA101 Date Accessed: 2026-05-19

Documents

Publications Citing This Dataset

Filters
Title Year Author Topic
Observed impacts of aerosol concentration on maritime tropical convection within constrained environments using airborne radiometer, radar, lidar, and dropsondes Amiot, Corey G., Lang, Timothy J., van den Heever, Susan C., Ferrare, Richard A., Sy, Ousmane O., Carey, Lawrence D., Christopher, Sundar A., Mecikalski, John R., Freeman, Sean W., Sokolowsky, George Alexander, Hostetler, Chris A., Tanelli, Simone Atmospheric Pressure Measurements, Upper Air Temperature, Dew Point Temperature, Relative Humidity, U/V Wind Components, Flight Level Winds, Wind Direction, Wind Speed
Dual-Polarization Deconvolution and Geophysical Retrievals from the Advanced Microwave Precipitation Radiometer during OLYMPEX/RADEX Amiot, Corey G., Biswas, Sayak K., Lang, Timothy J., Duncan, David I. SPECTRUM WIDTH, Total Precipitable Water, Radar Reflectivity, Doppler Velocity, Precipitation Rate, Atmospheric Pressure Measurements, Upper Air Temperature, Dew Point Temperature, Relative Humidity, U/V Wind Components, Flight Level Winds, Wind Direction, Wind Speed
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