In situ measurements of snow accumulation in the Amundsen Sea Embayment during 2016
In situ measurements of snow accumulation in the Amundsen Sea Embayment during 2016
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DOI：
10.1017/s0954102018000068
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发表时间：
2018-03
影响因子：
1.6
通讯作者：
Joanne S. Johnson;J. O’Donnell;E. Thomas
中科院分区：
文献类型：
--
作者：
Joanne S. Johnson;J. O’Donnell;E. Thomas
摘要积雪的测量对于可靠地预测未来冰量的损失和预测海平面的变化是至关重要的。然而，目前发表的阿蒙森海湾松岛-思韦茨冰川集水区积雪的现场测量结果很少，而且没有来自经度100.77°以西低海拔地区的测量结果。这里报告了2016年11个月内Pine Island-Thwaites冰川流域六个地点的积雪测量结果。平均累积速率为0.10±0.01 ~ 1.26± 0.22m w. e. yr-1与1985-2009年期间机载雷达得出的结果相当，表明降雪率非常高，特别是在接地线附近。
Abstract Measurements of snow accumulation are critical for reliable prediction of future ice mass loss and hence projections of sea level change. However, there are currently very few published in situ measurements of snow accumulation in the Pine Island–Thwaites glacier catchment of the Amundsen Sea Embayment, and none from low elevation sites west of 100.77° longitude. Here measurements of snow accumulation over an 11 month period in 2016 are reported for six sites in the Pine Island–Thwaites glacier catchment. The average accumulation rates of 0.10±0.01 to 1.26±0.22 m w.e. yr-1 are comparable with those derived from airborne radar for the period 1985–2009, suggesting very high rates of snowfall, particularly in the vicinity of the grounding line.