三江源国家公园星空地一体化生态监测数据平台
Ecological Data Center of Sanjiangyuan National Park
Thermokarst lakes on the Qinghai-Tibet Plateau (2018)

The Qinghai-Tibetan Plateau (QTP), the largest high-altitude and low-latitude permafrost zone in the world, has experienced rapid permafrost degradation in recent decades, and one of the most remarkable resulting characteristics is the formation of thermokarst lakes. Such lakes have attracted significant attention because of their ability to regulate carbon cycle, water, and energy fluxes. However, the distribution of thermokarst lakes in this area remains largely unknown, hindering our understanding of the response of permafrost and its carbon feedback to climate change.Based on more than 200 sentinel-2A images and combined with ArcGIS, NDWI and Google Earth Engine platform, this data set extracted the boundary of thermokarst lakes in permafrost regions of the Qinghai-Tibet Plateau through GEE automatic extraction and manual visual interpretation.In 2018, there were 121,758 thermokarst lakes in the permafrost area of the Qinghai-Tibet Plateau, covering an area of 0.0004-0.5km², with a total area of 1,730.34km² respectively.The cataloging data set of Thermokarst Lakes provides basic data for water resources evaluation, permafrost degradation evaluation and thermal karst study on the Qinghai-Tibet Plateau.

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QTP_thermokarst_lake_2018

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  • File size: 40.37 MB
  • Browse count:491次
  • Time range:2018-04-01 至 2018-12-31
  • Access: online
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Resource Provider: CHEN Xu   MU Cuicui   JIA Lin   LI Zhilong   FAN Chenyan   MU Mei   PENG Xiaoqing   WU Xiaodong  

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