• "Stage for Delivery" orders in NASA's Earthdata Search will be disabled between Tuesday, May 30, 6 pm (US Mountain Time) and Thursday, June 1, 7 am (US Mountain Time) for planned system maintenance. During this period, users will not be able to request data using this access method. All other download methods will remain available (except during the NSIDC DAAC scheduled downtime).

  •  On Wednesday, May 31st from 7:30 a.m. to 10:30 a.m. (US Mountain Time), the following data collections may not be available due to planned system maintenance: ASO, AMSR Unified, AMSR-E, Aquarius, High Mountain Asia, IceBridge, ICESat/GLAS, ICESat-2, LVIS, MEaSUREs, MODIS, Nimbus, SMAP, SnowEx, SSM/I-SSMIS and VIIRS.

SnowEx17 Ground-Based UWScat Ku- and X-Band Frequency Modulated Continuous Wave Radar, Version 1 (SNEX17_UWScat)
Data set:
This is the most recent version of these data.
Version Summary
Initial release


This data set consists of ground-based scatterometer data acquired during the SnowEx 2017 campaign at Grand Mesa, Colorado, USA, a snow-covered, forested study site about 40 miles east of the city of Grand Junction, CO. The data comprise operational parameters used during data acquisition, Mueller matrices for each acquisition, and the nearfield-corrected normalized radar cross section (NRCS) in VV, VH, HV, and HH polarizations. Range profile data are also provided for each scan which report the raw power returned as a function of range from the antenna.
Data Format(s):
Temporal Coverage:
21 February 2017 to 25 February 2017
Temporal Resolution:
Not applicable
Spatial Resolution:
30 cm
30 cm
Spatial Reference System(s):
WGS 84
Spatial Coverage:
Yellow areas on the map below indicate the spatial coverage for this data set.

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How To

Many NSIDC DAAC data sets can be accessed using the NSIDC DAAC's Data Access Tool. This tool provides the ability to search and filter data with spatial and temporal constraints using a map-based interface. Users have the option to
All 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, using wget or curl. Basic command line instructions are provided in the article below.