A dataset of thermokarst lake drainage events in northern Alaska (2000-2020)

• Main Authors: Chen, Yating, Liu, Aobo, Cheng, Xiao
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2021
• Subjects: Permafrost; Thermokarst lake; Lake drainage; LandTrendr; Remote sensing; permafrost; Thermokarst; Alaska
• Online Access: https://doi.org/10.5281/zenodo.4998099

The catastrophic thermokarst lake drainage events occurring in the circumpolar Arctic permafrost region are referred to as the new Arctic hazard. To accurately detect this disturbance process, the authors performed a time series analysis of changes in the thermokarst lake region of northern Alaska since 2000 using all available Landsat TM, ETM+, and OLI continuous data on the Google Earth Engine platform. This dataset includes 90 thermokarst lake drainage events detected in northern Alaska during 2000-2020 and year-by-year water distribution maps based on AWEI. The thermokarst lake drainage events are published in Shapefile format, including information on the area, location, drainage proportion, and year of drainage for each drained lake.