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Description

This data set contains the coordinates of SnowEx infrastructure in Grand Mesa, Colorado, collected through a differential GNSS real-time kinematic (RTK) survey. The surveys were conducted at 244 stakes along 90 transects, 31 snow pits, 24 time-lapse cameras, and 15 reference poles used to estimate snow depth from camera images. Data files report the name, location, elevation, horizontal and vertical precision, date and time, original easting and northing, and any relevant notes for each survey point.

Readings were collected using a Trimble R8 GNSS base station and two rovers: a Trimble R8 (Hiemstra) and a Trimble R10 (Gelvin). Both rovers were deployed within approximately 6km of the base station and equipped with a GNSS antennae and a base-station radio antennae from which to receive corrections.

Version Description

Initial release

Product Summary

Platforms
GROUND-BASED OBSERVATIONS
Instruments
GPS RECEIVERS
Spatial Extent

N: 39.1 S: 39 E: -107.8 W: -108.2

Geographic Region
COLORADO
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2017-07-18 to 2017-07-23
Concept ID
C3266800211-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
4
Processing Level
1B
Published
Science Keywords
Geolocation

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

Hiemstra, C., & Gelvin, A. (2018). SnowEx17 CRREL Differential GNSS Survey, Version 1 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/I0HTB2UVNSEF Date Accessed: 2025-12-20

Documents

USER'S GUIDE

GENERAL DOCUMENTATION