基于ICESat和ICESat-2激光测高数据估算2003—2019年格陵兰冰盖物质平衡
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李晴烁, 柯长青, 张杰, 范宇宾, 沈校熠
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Estimation of the Mass Balance of Greenland IceSheet from 2003 to 2019 based on ICESat and ICESat-2 Laser Altimetry Data
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LI Qingshuo, KE Changqing, ZHANG Jie, FAN Yubin, SHEN Xiaoyi
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表1 2003—2019年格陵兰冰盖各流域体积和质量变化
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Tab. 1 Changes in volume and mass of Greenland Ice Sheet by drainage from 2003 to 2019
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流域
名称 | 体积变化
/（km3/yr） | 粒雪含量校正 /（km3/yr） | 垂直位移校正
/（km3/yr） | 重力回弹校正 /（km3/yr） | 质量变化/（Gt/yr） | | 子流域 | 流域 | | 1.1 | -2.3 ± 0.9 | -4.1 ± 1.4 | 0.3 ± 0.1 | 0.1 ± 0.0 | -5.6 ± 1.7 | -10 ± 2.8 | | 1.2 | -0.3 ± 0.9 | -2.3 ± 1.0 | 0.1 ± 0.0 | 0.1 ± 0.0 | -2.3 ± 1.4 | | 1.3 | -0.3 ± 1.2 | -1.4 ± 0.7 | 0.0 ± 0.0 | 0.2 ± 0.0 | -1.4 ± 1.4 | | 1.4 | -0.4 ± 1.1 | -0.5 ± 0.3 | 0.0 ± 0.0 | 0.1 ± 0.0 | -0.7 ± 1.1 | | 2.1 | 6.3 ± 0.9 | -3.6 ± 3.3 | 0.2 ± 0.1 | 0.1 ± 0.0 | 1.8 ± 3.4 | 4.2 ± 3.6 | | 2.2 | 3.6 ± 1.0 | -0.5 ± 0.8 | 0.0 ± 0.0 | 0.0 ± 0.0 | 2.4 ± 1.1 | | 3.1 | 1.4 ± 0.8 | 0.7 ± 3.2 | 0.2 ± 0.1 | 0.0 ± 0.0 | 2.0 ± 3.3 | -22.8± 3.8 | | 3.2 | -11.8 ± 0.8 | -0.1 ± 1.5 | 0.2 ± 0.0 | 0.0 ± 0.0 | -9.5 ± 1.8 | | 3.3 | -18.2 ± 1.6 | -0.7 ± 2.7 | 0.3 ± 0.1 | 0.0 ± 0.0 | -15.3 ± 3.1 | | 4.1 | -14.8 ± 1.6 | -3.9 ± 2.4 | 0.3 ± 0.1 | 0.0 ± 0.0 | -15.7 ± 2.9 | -37.9 ± 5.5 | | 4.2 | -13.3 ± 2.4 | -3.2 ± 2.7 | 0.3 ± 0.1 | 0.0 ± 0.0 | -13.7 ± 3.6 | | 4.3 | -8.4 ± 2.1 | -1.9 ± 1.6 | 0.2 ± 0.0 | 0.0 ± 0.0 | -8.5 ± 2.9 | | 5 | -25.8 ± 1.9 | -16.2 ± 2.4 | 0.5 ± 0.1 | 0.0 ± 0.0 | -36.7 ± 3.1 | -36.7 ± 3.1 | | 6.1 | -9.1 ± 2.6 | -2.4 ± 2.1 | 0.2 ± 0.0 | 0.0 ± 0.0 | -9.6 ± 3.3 | -26.5 ± 6.6 | | 6.2 | -16.2 ± 1.9 | -4.3 ± 5.4 | 0.6 ± 0.1 | 0.0 ± 0.0 | -16.9 ± 5.7 | | 7.1 | -16.4 ± 1.0 | -2.7 ± 3.0 | 0.4 ± 0.1 | -0.2 ± 0.0 | -15.5 ± 3.1 | -17.5 ± 4.8 | | 7.2 | -16.5 ± 1.0 | -1.5 ± 3.5 | 0.5 ± 0.1 | -0.2 ± 0.0 | -2.0 ± 3.7 | | 8.1 | -43.9 ± 1.5 | -6.0 ± 4.0 | 0.9 ± 0.1 | -0.3 ± 0.0 | -40.6 ± 4.3 | -48.0 ± 4.6 | | 8.2 | -7.91 ± 1.0 | -1.0 ± 1.3 | 0.1 ± 0.0 | 0.0 ± 0.0 | -7.4 ± 1.6 | | 总计 | -191.74 ± 6.6 | -23.0 ± 11.3 | 5.4 ± 0.3 | 0.5 ± 0.0 | -195.2 ± 13.1 |
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