TY  - Data
T1  - High resolution thermokarst lake dataset in the Permafrost region of the Qinghai–Tibet Plateau (2020)
A1  - Peng Xiaoqing
A1  - Luo Xingxing
A1  - Tian Weiwei
DO  - 10.12072/ncdc.lzu.db7178.2026
PY  - 2026
DA  - 2026-03-18
PB  - National Cryosphere Desert Data Center
AB  - One of the consequences of permafrost degradation has been the development of thermokarst lakes, which are potential hotspots for CO2 and CH4 emissions. However, due to data resolution issues, small thermokarst lakes (<500 m2) have traditionally been excluded from regional carbon emission estimates. This study employs a deep learning method combined with high-resolution (3 m) PlanetScope imagery complemented by manual corrections, to produce a new high-accuracy dataset of thermokarst lakes in the permafrost regions of the Qinghai-Tibet Plateau (QTP). A total of 329,848 thermokarst lakes were detected, covering an area of approximately 2,893 km2. This exceeds existing estimates of identified lakes by 51.4%, thereby uncovering a critical shortcoming in prior thermokarst lake estimates for the permafrost region of the QTP.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/c4fd7755-9252-48c0-bd2e-f70606a13c08
ER  -