IEDA
Dataset Information
Antarctic passive microwave Kmeans derived surface melt days, 1979-2020
Data DOI:
https://doi.org/10.15784/601457
Cite as
Johnson, A., Fahnestock, M., & Hock, R. (2021) "Antarctic passive microwave Kmeans derived surface melt days, 1979-2020" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601457.
Abstract
This dataset contains the total number of days per year with meltwater present at the surface across the Antarctic ice sheet and surrounding ice shelves derived from passive microwave satellite observations for each melt year from 1979/80 to 2019/20. This data comes from daily and near-daily SMMR, SSM/I, and SSMIS results at 25 km resolution at 19 GHz horizontal polarization. Each melt year starts on July 1 and ends June 30. The melt detection algorithm is described in Johnson and others (2020) and uses KMeans clustering analysis of the annual brightness temperature time series on each pixel to detect melt for that pixel and year.
Creator(s):
Johnson, Andrew; Hock, Regine; Fahnestock, Mark
Date Created:
2021-06-22
Repository:
USAP-DC (current)
Spatial Extent(s)
West: -180, East: 180, South: -90, North: -60
Temporal Extent(s)
Start: 1979-07-01 - End: 2020-06-30
Award(s)
Version:
1
References
  1. Johnson, A., Fahnestock, M., & Hock, R. (2020). Evaluation of passive microwave melt detection methods on Antarctic Peninsula ice shelves using time series of Sentinel-1 SAR. Remote Sensing of Environment, 250, 112044. (doi:10.1016/j.rse.2020.112044)
Supplemental Docs
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README_601457.txt
Data Files
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7.6 MB
meltdays.nc

MD5 Checksum: b1dd01ddb4d634747dce9506725281c7 File Type: NetCDF

This dataset has been downloaded 10 times since March 2017 (based on unique date-IP combinations)