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Description

This data set contains snowpack relative permittivities and densities derived from Ground Penetrating Radar (GPR) surveys and airborne lidar observations of snow depths. The results of the original GPR surveys are published in the <a href="https://doi.org/10.5067/G21LGCNLFSC5">SnowEx17 Ground Penetrating Radar, Version 2</a> data set, while the lidar snow depths were sourced from <a href="https://doi.org/10.5067/KIE9QNVG7HP0"> ASO L4 Lidar Snow Depth 3m UTM Grid, Version 1</a>. Data are available between 08 Feb 2017 to 25 Feb 2017 from Grand Mesa, a snow-covered, forested area about 40 miles east of Grand Junction. Parameters include two-way travel (TWT) time, lidar-measured snow depth, calculated snow water equivalent (SWE), calculated snow density, and calculated relative permittivity.

Product Summary

Platforms
AIRCRAFT
Instruments
LIDAR
Spatial Extent

N: 39.106 S: 39.0005 E: -107.86 W: -108.2195

Geographic Region
GRAND MESA
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2017-02-08 to 2017-02-25
Concept ID
C3274609778-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
1
Processing Level
2
Science Keywords
RELATIVE PERMITTIVITY ,
Snow Density ,
Snow Depth ,
Snow Water Equivalent ,
Two-Way Travel Time

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

Bonnel, R., McGrath, D., Webb, R. W., Hale, K. E., Meehan, T. G., & Marshall, H.-P. (2024). SnowEx17 GPR and Lidar-Derived Snowpack Relative Permittivities and Densities, Version 1 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/91X6GO5XNNEV Date Accessed: 2025-12-14

Documents

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GENERAL DOCUMENTATION