Data Announcements

SnowEx17 Time Series Sonic Snow Depth Measurement data set now available

13 June 2018

The SnowEx17 Time Series Sonic Snow Depth Measurement data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set contains 15-min snow depth observations for two study sites on Grand Mesa, CO, USA, acquired as part of NASA’s 2017 SnowEx campaign. The data were recorded using two arrays of Judd Communications Ultrasonic Depth Sensors, positioned to represent three primary vegetation conditions: open-canopy; canopy-edge; and closed-canopy.

This data set is being made available with minimal documentation as part of an early release. NSIDC will provide an increased level of support and more detailed documentation in the future.

Data set DOI: https://doi.org/10.5067/5YJEYNLS1YK4

SnowEx17 SnowEx17 Ground-Based UWScat Ku- and X-Band Frequency Modulated Continuous Wave Radar data set now available

12 June 2018

The SnowEx17 Ground-Based UWScat Ku- and X-Band Frequency Modulated Continuous Wave Radar data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

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.

This data set is being made available with minimal documentation as part of an early release. NSIDC will provide an increased level of support and more detailed documentation in the future.

Data Set DOI: https://dx.doi.org/10.5067/ZW3UUYUZRYJO

SnowEx17 Laser Snow Microstructure Specific Surface Area data set now available

24 May 2018

The SnowEx17 Laser Snow Microstructure Specific Surface Area data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, obtained as part of the NASA SnowEx 2017 field campaign, reports vertical profiles of snow reflectance, specific surface area (SSA), and optical equivalent diameter (grain size) for 95 locations at Grand Mesa, Colorado, USA, a snow-covered, forested study site about 40 miles east of Grand Junction. Reflectance was measured in situ using a 1310 nm integrating sphere laser device and then converted to SSA and optical equivalent diameter.

Data Set DOI: https://doi.org/10.5067/H9C1UVWN1UK3

SnowEx17 Community Snow Depth Probe Measurements now available

23 May 2018

The SnowEx17 Community Snow Depth Probe Measurements data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, obtained as part of the NASA SnowEx 2017 field campaign, contains in situ snow depth measurements along multiple transects at two locations in Colorado, USA: Grand Mesa, a snow-covered, forested study site about 40 miles east of Grand Junction; and Senator Beck Basin approximately 80 miles to the SSE of Grand Mesa.

Data Set DOI: https://doi.org/10.5067/WKC6VFMT7JTF

NASA SnowEx 2017 Community Snow Pits Data Now Available

16 May 2018

In situ measurements of snow temperature, density, stratigraphy, grain size, wetness, depth, and snow water equivalent (SWE) are now available for 265 snow pits across two study sites in Colorado, USA: Grand Mesa, a snow-covered, forested study site about 40 miles east of Grand Junction and Senator Beck Basin approximately 80 miles to the SSE of Grand Mesa.

These data were obtained during the NASA SnowEx 2017 campaign.

To access the data, visit the data set landing page here: SnowEx17 Community Snow Pit Measurements, Version 1

Data Set DOI: https://dx.doi.org/10.5067/Q0310G1XULZS

NASA SnowEx 2017 BRDF Data Now Available

22 March 2018

Measurements of the bidirectional reflectance distribution function (BRDF) at two locations in Colorado—Grand Mesa, a snow-covered, forested study site about 40 miles east of Grand Junction, and Senator Beck Basin approximately 80 miles to the SSE of Grand Mesa—are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

These data were obtained during the NASA SnowEx 2017 campaign using the Cloud Absorption Radiometer, an airborne multi-angular, multi-wavelength scanning radiometer that measures scattered light in 14 spectral bands.

For complete documentation and access to the data, visit the data set landing page here: SnowEx17 Cloud Absorption Radiometer BRDF, Version 1

Data Set DOI: https://doi.org/10.5067/VH3F5ZPLH3PM

NASA SnowEx17 SnowMicroPen (SMP) Raw Penetration Force Profiles Data Now Available

28 September 2017

NASA SnowEx17 SnowMicroPen (SMP) Raw Penetration Force Profiles data are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains raw penetration force profiles measured at snow pits and along linear transects at Grand Mesa, Colorado using the SMP, a digital snow penetrometer.

Data Set DOI: http://dx.doi.org/10.5067/ZPOLBRHVWG5V