ACTIVE LAYER THICKNESS RETRIEVAL OVER THE QINGHAI-TIBET PLATEAU FROM 2000 TO 2020 BASED ON INSAR-MEASURED SUBSIDENCE AND MULTI-LAYER SOIL MOISTURE

We combined a long-term InSAR derived surface deformation dataset with streamflow recession analysis to assess potential destruction effects of human activities on regional permafrost in the largest mining area of Qinghai-Tibet Plateau. We found that enhanced surface deformation coincides with significant recession slowdown after mining, indicating a strong signal of permafrost thaw. Our results highlight accelerated effects of human disturbance on permafrost degradation under regional warming.