格陵兰低透性冰块的快速扩张
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在PubMed上查看摘要
概括
此摘要是机器生成的。格陵兰岛
科学领域
- 冰川学
- 气候科学
- 水文学
背景情况
- 融化水流动是格陵兰冰盖物质流失的主要原因.
- 格陵兰的内部有多孔的雪和树可以吸收融水, 但重新结可以限制这种缓冲效应.
- 重新结对格陵兰的排水的影响在很大程度上未得到量化.
研究的目的
- 研究重新结对格陵兰冰盖融化水流动的影响.
- 量化由于融水增加而形成和扩张的冰块.
- 预测冰块对全球海平面上升的未来贡献.
主要方法
- 对核的分析和雷达观察.
- 使用区域气候模型.
- 量化流水面积和融水贡献的变化.
主要成果
- 增加的融水导致形成厚厚的低透度冰块.
- 自2001年以来,格陵兰冰盖的总流水面积增加了26±3%.
- 预计到2100年, 冰块将大大增加格陵兰对海平面上升的贡献.
结论
- 冰块形成是格陵兰水文学的关键因素.
- 随着气候变暖, 冰块将进一步向内陆扩张.
- 冰块将大大提高融水反过程, 改变冰盖的行为, 加快海平面上升.
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