| 冰川零平衡线处的物质平衡及其应用 |
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| 引用本文： | 谢自楚,丁良福.冰川零平衡线处的物质平衡及其应用[J].冰川冻土,1996,18(1):1-9. |
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| 作者姓名： | 谢自楚 丁良福 |
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| 作者单位： | 中国科学院兰州冰川冻土研究所 |
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| 摘 要： | 论证了在稳定状态时的冰川平衡线即零平衡线ＥＬＡ０）处的比净平衡大致等于整个冰川的平均净平衡。提出了ＥＬＡ０的直接测定方法、误差范围以及利用冰川中值高度计算ＥＬＡ０的公式。认为可以利用ＥＬＡ０的特征简化冰川物质平衡的观测及计算，以及利用冰川编目资料大面积估算冰川物质平衡状况的可能性。
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| 关 键 词： | 零平衡线 物质平衡 冰川 |
Mass Balance at the Steady State Equilibrium Line Altitude and its Application |
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| Xie Zichu,Ding Liangfu,Liu Chaohai and Liu Shiyin.Mass Balance at the Steady State Equilibrium Line Altitude and its Application[J].Journal of Glaciology and Geocryology,1996,18(1):1-9. |
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| Authors: | Xie Zichu Ding Liangfu Liu Chaohai and Liu Shiyin |
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| Abstract: | Recently, a general concept that mass balance and its components versus altitude curves are stable have been widely accepted, so that the authors suggest, based on observations on many glaciers, that mass balance and its components at the steady state equilibrium line altitude ( ELA 0) equal their average values on a glacier respectively. Through statistic analyses of mass balance series of the glaciers in different mountains in the world, it is discovered that the ELA 0 does not substantially change, i.e., ELA 0 is not subject to the influence of climate change. If the glacier geometry not changes too much, observation, calculation and prediction can therefore be made based on ELA 0 level instead of whole glacier. Further analysing the relationship between ELA 0 and other glacial levels (such as ELA i, ELA a H med ), the anthors propose that the ELA 0 method can be applied to mass balance calculation and prediction on any glaciers without systematic observation. |
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| Keywords: | steady state ELA 0 mass balnce |
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