Abstract: As a sensitive indicator of regional climate change, Antarctic supraglacial lakes are important for studying the stability of the cryosphere under global climate change. Using the Normalized Difference Water Index, we extracted supraglacial lakes on Amery Ice Shelf in East Antarctica and Larsen A Ice Shelf in West Antarctica from Landsat Enhanced Thematic Mapper (ETM +)/ Operational Lander Imager (OLI) images and Landsat Image Mosaic of Antarctica (LIMA) mosaic images, and explored teleconnections between supraglacial lakes and 2000–2019 regional meteorological data, and the relationship between supraglacial lakes and regional climate change. Total surface area of supraglacial lakes on Amery Ice Shelf is relatively stable and decreasing, while that on Larsen A Ice Shelf is increasing. We found positive feedbacks between lake surface area, air temperature and sea surface temperature, which differ between the two ice shelves. On Amery Ice Shelf, lake surface area is con-siderably affected by air temperature, and unaffected by sea surface temperature. On Larsen A Ice Shelf, lake surface area is sensitive to changes in sea surface temperature and varies with sea surface temperature.

Key words: supraglacial lakes, climate change, air temperature, sea surface temperature, ice shelf