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| DOI | 10.5194/tc-11-133-2017 |
| Brief communication: Thinning of debris-covered and debris-free glaciers in a warming climate | |
| Banerjee A. | |
| 发表日期 | 2017 |
| ISSN | 19940416 |
| 卷号 | 11期号:1 |
| 英文摘要 | Recent geodetic mass-balance measurements reveal similar thinning rates on glaciers with or without debris cover in the Himalaya-Karakoram region. This comes as a surprise as a thick debris cover reduces the surface melting significantly due to its insulating effects. Here we present arguments, supported by results from numerical flowline model simulations of idealised glaciers, that a competition between the changes in the surface mass-balance forcing and that of the emergence/submergence velocities can lead to similar thinning rates on these two types of glaciers. As the climate starts warming, the thinning rate on a debris-covered glacier is initially smaller than that on a similar debris-free glacier. Subsequently, the rate on the debris-covered glacier becomes comparable to and then larger than that on the debris-free one. The time evolution of glacier-averaged thinning rates after an initial warming is strongly controlled by the time variation of the corresponding emergence velocity profile. © 2017 Author(s). |
| 学科领域 | climate effect; flow modeling; geodetic datum; glacial debris; glacier; glacier flow; mass balance; melting; numerical model; velocity profile; warming; Himalayas; Karakoram |
| 语种 | 英语 |
| scopus关键词 | climate effect; flow modeling; geodetic datum; glacial debris; glacier; glacier flow; mass balance; melting; numerical model; velocity profile; warming; Himalayas; Karakoram |
| 来源期刊 | Cryosphere
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/119461 |
| 作者单位 | Earth and Climate Science, Indian Institute of Science Education and Research, Pune, India |
| 推荐引用方式 GB/T 7714 | Banerjee A.. Brief communication: Thinning of debris-covered and debris-free glaciers in a warming climate[J],2017,11(1). |
| APA | Banerjee A..(2017).Brief communication: Thinning of debris-covered and debris-free glaciers in a warming climate.Cryosphere,11(1). |
| MLA | Banerjee A.."Brief communication: Thinning of debris-covered and debris-free glaciers in a warming climate".Cryosphere 11.1(2017). |
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