Circum-Antarctic data used in "Tipping point behaviour of ice-sheet grounding-zone melting due to ocean water intrusion" by Bradley and Hewitt

The file 'Antarctica-data.mat' contains the following fields: 'x' [units: m] x position of grid points 'y' [units m] y position of grid points 'tf_max' [units: C] maximum thermal forcing from Adusumilli et al. 2020 (doi: https://doi.org/10.1038/s41561-020-0616-z) 'H' [units: m] ice thickness from Bedmachine V3 'B' [units: m] bed elevation from Bedmachine V3 'mask' [units: n/a] Bedmachine V3 mask 'isedge' [units: n/a] Logical array with 1 corresponding to edges of ice shelves and 0 otherwise 'isgl' [units: n/a] Logical array with 1 corresponding to grounding line points and 0 otherwise 'isfront' [units: n/a] Logical array with 1 corresponding to ice fronts and 0 otherwise 'vx' [units: m/a] Ice velocity in the x-direction from ITS_LIVE 240m mosaic 'vy' [units: m/a] Ice velocity in the y-direction from ITS_LIVE 240m mosaic

文件`Antarctica-data.mat`包含以下字段：`x` [单位：米] 网格点的x坐标；`y` [单位：米] 网格点的y坐标；`tf_max` [单位：摄氏度（℃）] 取自Adusumilli等人2020年研究的最大热强迫（thermal forcing），对应文献DOI为https://doi.org/10.1038/s41561-020-0616-z；`H` [单位：米] 取自冰床机（Bedmachine）V3的冰厚度；`B` [单位：米] 取自冰床机V3的冰床高程；`mask` [单位：无（n/a）] 冰床机V3掩膜；`isedge` [单位：无（n/a）] 逻辑数组，取值为1时对应冰架边缘，取值为0时为其他情况；`isgl` [单位：无（n/a）] 逻辑数组，取值为1时对应接地线点，取值为0时为其他情况；`isfront` [单位：无（n/a）] 逻辑数组，取值为1时对应冰锋，取值为0时为其他情况；`vx` [单位：米/年（m/a）] 取自ITS_LIVE 240米镶嵌数据集的x方向冰流速；`vy` [单位：米/年（m/a）] 取自ITS_LIVE 240米镶嵌数据集的y方向冰流速