ABoVE: Passive Microwave-derived Annual Snowoff Date Maps, 1988-2018

Description

This dataset provides annual maps of the snowoff (SO) date from 1988-2018 across Alaska and parts of Far East Russia and northwest Canada at a resolution of 6.25 km. SO date is defined as the last day of persistent snow and was derived from the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave (PMW) EASE-Grid Brightness Temperature (Tb) Earth System Data Record (ESDR) product. The spatial domain was intended to match MODIS Alaska Snow Metrics and extend its temporal fidelity beyond the MODIS era. SO date estimates were compared to snow depth measurements collected at SNOTEL stations across Alaska and to three SO datasets derived from MODIS, Landsat, and the Interactive Multisensor Snow and Ice Mapping System (IMS). The data from 1988-2016 included a coastal mask removing coastal pixels due to potential water contamination from coarse brightness temperature observations (Dersken et al., 2012). There is not a coastal mask for the 2017-2018 data. The full data are included, and data users should be aware that coastal values can be adversely affected by adjacent water bodies.

Resources

Name Format Description Link
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/above/Passive_Microwave_Snowoff_Data/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ABOVE/guides/Passive_Microwave_Snowoff_Data.html
21 ABoVE project site https://above.nasa.gov
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1711
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1711
34 Summary statistics for the snowoff date from 1988-2016 across the study domain: mean (left), standard deviation (middle), and coefficient of variation (right). Dates expressed as day of year (DOY). https://daac.ornl.gov/ABOVE/guides/Passive_Microwave_Snowoff_Data_Fig1.png
33 ABoVE: Passive Microwave-derived Annual Snowoff Date Maps, 1988-2018: Passive_Microwave_Snowoff_Data.pdf https://data.ornldaac.earthdata.nasa.gov/public/above/Passive_Microwave_Snowoff_Data/comp/Passive_Microwave_Snowoff_Data.pdf
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1711
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ABOVE/guides/Passive_Microwave_Snowoff_Data.html
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1711
33 ABoVE: Passive Microwave-derived Annual Snowoff Date Maps, 1988-2018: Passive_Microwave_Snowoff_Data.pdf https://data.ornldaac.earthdata.nasa.gov/public/above/Passive_Microwave_Snowoff_Data/comp/Passive_Microwave_Snowoff_Data.pdf
34 Summary statistics for the snowoff date from 1988-2016 across the study domain: mean (left), standard deviation (middle), and coefficient of variation (right). Dates expressed as day of year (DOY). https://daac.ornl.gov/ABOVE/guides/Passive_Microwave_Snowoff_Data_Fig1.png
21 ABoVE project site https://above.nasa.gov

Tags

  • snow-ice
  • climate-indicators
  • cryosphere
  • terrestrial-hydrosphere
  • cryospheric-indicators
  • earth-science

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