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GPM Ground Validation Airborne Snow Observatory (ASO) OLYMPEX V1

Published by NASA/MSFC/GHRC | National Aeronautics and Space Administration | Catalog Last Checked: June 23, 2026 at 08:58 PM | Dataset Last Updated: June 22, 2026
The GPM Ground Validation Airborne Snow Observatory (ASO) OLYMPEX dataset consists of snow depth, bare earth surface, land surface classification and a Red, Green, Blue (RGB) composite image, provided at 3 m spatial resolution during the GPM Ground Validation Olympic Mountains Experiment (OLYMPEX) field campaign held in the Pacific Northwest. These data were collected by a Riegl Q1560 scanning LiDAR and an ITRES CASI-1500 imaging spectrometer , both part of the NASA Airborne Snow Observatory (ASO), during two separate periods, February 8-9, 2016 and March 29-30, 2016. A previous September 2014 flight was used to obtain no-snow measurements used for deriving snow depth. The data are provided in GeoTIFF format.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
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]
contactPoint 
{
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  "@type": "vcard:Contact",
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}
description The GPM Ground Validation Airborne Snow Observatory (ASO) OLYMPEX dataset consists of snow depth, bare earth surface, land surface classification and a Red, Green, Blue (RGB) composite image, provided at 3 m spatial resolution during the GPM Ground Validation Olympic Mountains Experiment (OLYMPEX) field campaign held in the Pacific Northwest. These data were collected by a Riegl Q1560 scanning LiDAR and an ITRES CASI-1500 imaging spectrometer , both part of the NASA Airborne Snow Observatory (ASO), during two separate periods, February 8-9, 2016 and March 29-30, 2016. A previous September 2014 flight was used to obtain no-snow measurements used for deriving snow depth. The data are provided in GeoTIFF format.
distribution 
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identifier 10.5067/GPMGV/OLYMPEX/LIDAR/DATA101
keyword 
[
  "earth-science-cryospheric-indicators-climate-indicators-snow-depth",
  "earth-science-land-use-land-cover-land-surface-land-use-land-cover-classification",
  "earth-science-topography-land-surface-terrain-elevation",
  "earth-science-visible-wavelengths-spectral-engineering-visible-imagery"
]
license https://www.usa.gov/government-works
modified 2026-06-22
programCode 
[
  "026:000"
]
publisher 
{
  "name": "NASA/MSFC/GHRC",
  "@type": "org:Organization"
}
spatial 
"["CARTESIAN", [{"WestBoundingCoordinate": -124.185, "NorthBoundingCoordinate": 48.0909, "EastBoundingCoordinate": -123.129, "SouthBoundingCoordinate": 47.493}]]"
temporal 2014-09-04/2016-03-30
theme 
[
  "Earth Science"
]
title GPM Ground Validation Airborne Snow Observatory (ASO) OLYMPEX V1

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