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Data Details

Antarctic Ice Sheet Freeze-thaw Dataset (1999-2019)

LIU Yong1,2ZHOUChunxia1ZHENG Lei1,2WANG Zemin1,2ZHOU Chunxia2
1 Chinese Antarctic Center of Surveying and Mapping,Wuhan University,Wuhan 430079,China2 Key Laboratory of Polar Surveying and Mapping,Ministry of Natural Resources,Wuhan 430079,China


Published:Aug. 2020

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Data Downloaded:3574.28 MB      Citations:

Key Words:

Antarctic ice sheet,snowmelt,data fusion,Journal of Global Change Data & Discovery,Global Ecosystem and Environment Observation Analysis Research Cooperation


The surface melting of Antarctic ice sheet (AIS) is a sensitive factor of global climate change, which has an important impact on the mass and energy balance of AIS. Antarctic ice sheet freeze-thaw dataset (1999-2019) was developed using the threshold and Categorical Triple Collocation (CTC) methods integrating with the data of SSM/I microwave radiometer, ASCAT microwave scatterometer and regional climate model (RACM02). The dataset is archived in .nc data format, the spatial resolution is 4.45 km and the temporal resolution is day. The data type of this dataset is integer, where 1 represents melting and - 1 represents freezing. The dataset consists of two data files with data size of 16.7 GB (compressed to one single file with 32.2 MB). The data paper will be published at the Journal of Global Change Data & Discovery, Vol. 4, No. 3, 2020.

Foundation Item:

National Natural Science Foundation of China (41776200, 41941010)

Data Citation:

LIU Yong, ZHOUChunxia, ZHENG Lei, WANG Zemin, ZHOU Chunxia. Antarctic Ice Sheet Freeze-thaw Dataset (1999-2019)[J/DB/OL]. Digital Journal of Global Change Data Repository, 2020.

Data Product:

ID Data Name Data Size Operation
1 DailyMeltingAntarctic_1999-2019.rar 32973.58KB