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Daily Snow Depth and SWE from GPS Signal-to-Noise Ratios, Version 1
Data set id:
NSIDC-0722
DOI: 10.5067/Z02Y1HGNFXCH
This is the most recent version of these data.
Version Summary
New data set.
In this section
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Overview

This data set consists of daily snow depths and snow-water equivalents (SWEs) estimated from GPS signal-to-noise ratios (SNRs). Snow depth is determined by calculating the relative change of the effective multipath reflector height (i.e. the snow surface) with respect to the snow free surface. SWEs are determined using GPS snow depths and, when available, density observations from nearby SNOpack TELemetry (SNOTEL) stations. When a nearby SNOTEL station is not available, density is estimated using GPS snow depth and climate classes, which account for variables such as location and time of the year.
Parameter(s):
SNOW DEPTH
SNOW WATER EQUIVALENT
Platform(s):
GPS
Sensor(s):
GPS RECEIVERS
Data Format(s):
CSV
Temporal Coverage:
  • 1 September 2002 to 30 June 2017
Temporal Resolution:
  • 1 day
Spatial Resolution:
  • varies
  • varies
Spatial Reference System(s):
Not Specified
Spatial Coverage:
  • N:
    83
    S:
    32
    E:
    -60
    W:
    -180
  • N:
    57.67
    S:
    57.66
    E:
    18.37
    W:
    18.36
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

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Programmatic Access Guide for Data on daacdata.apps
Data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) can be accessed directly from our HTTPS file system. We provide basic command line Wget and curl instructions for HTTPS file system downloads below.
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