概括
极地以外的冰川对海平面上升有很大影响. 这些冰川占据了观察到的海平面上升的三分之一到一半,这是海洋变暖无法解释的大量.
科学领域:
- 冰川学的冰川学
- 海洋学 海洋学 海洋学
- 气候科学 气候科学
背景情况:
- 全球冰川体积的变化是气候变化的关键指标.
- 了解冰川融水对海洋的贡献对于海平面上升预测至关重要.
研究的目的:
- 量化冰川 (不包括格陵兰岛和南极洲) 从1884年到1975年对海平面上升的贡献.
- 用观察到的冰川体积变化对质量平衡模型进行校准.
主要方法:
- 利用观察到的冰川体积的长期变化.
- 使用水文气象质量平衡模型.
- 使用季节性质量平衡振幅将平均体积变化扩展到全球平均值.
主要成果:
- 极地以外的冰川在1884年至1975年间所观察到的海平面上升中贡献了大约三分之一到一半.
- 除了热膨胀,这种贡献也是解释海平面总体上升的一个重要因素.
结论:
- 非极地冰川在全球海平面上升中发挥着重要作用.
- 对冰川质量平衡的准确建模对于预测未来海平面变化至关重要.
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