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| DOI | 10.1016/j.rse.2024.114076 |
| Changes in glacier surface temperature across the Third Pole from 2000 to 2021 | |
| 发表日期 | 2024 |
| ISSN | 0034-4257 |
| EISSN | 1879-0704 |
| 起始页码 | 305 |
| 卷号 | 305 |
| 英文摘要 | Glacier surface temperature is not only an important indicator of climate change, but is also directly related to glacier physical processes and mass balance. Glaciers over the Third Pole have shown heterogeneous but accelerated mass loss over the past two decades. However, few studies have focused on changes of glacier surface temperature in this region. In this study, we investigate this change from 2000 to 2021 using an altitudinal area-weighting method based on Landsat surface temperature products. The results show that this method can robustly derive inter-annual variability and long-term trends of subregional glacier surface temperature. Over the entire Third Pole, glacier surfaces exhibited warming at the rate of +0.17 +/- 0.35 degrees C dec(-1) (p = 0.32). The warming had a distinct seasonal pattern: warming in autumn (+0.50 +/- 0.53 degrees C dec(-1), p = 0.06) but cooling in spring (-0.22 +/- 0.36 degrees C dec(-1), p = 0.23). Correspondingly, the ablation season 0 degrees C isotherm altitude has risen >100 m and the glacier area with GST >= 0 degrees C has expanded by 10%. Moreover, the GST changes displayed large spatial heterogeneity. In the westerlies-dominated regions (e.g., Karakoram and Kun Lun), glacier surfaces showed slight warming or even cooling on average (from -0.10 to +0.06 degrees C dec(-1)), while in the monsoon-dominated regions (e.g., East Himalaya, Southeast Tibetan Plateau and Hengduan Mountains), strong warming was observed (> +0.50 degrees C dec(-1), p < 0.05). Glacier surfaces generally showed a faster warming at north slopes than south slopes, especially in the ablation season. These results emphasize that different magnitudes of glacier surface warming are important indicators for the contrasting glacier changes over the Third Pole. The method presented here opens the way to investigate long-term surface temperature change of global mountain glaciers, which can help us further understand the mechanisms of glacier response to global climate change. |
| 英文关键词 | Glacier surface temperature; Third pole; Climate change; Landsat; Glacier; Remote sensing |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS类目 | Environmental Sciences ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS记录号 | WOS:001203767300001 |
| 来源期刊 | REMOTE SENSING OF ENVIRONMENT
 |
| 来源机构 | 中国科学院青藏高原研究所 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/287550 |
| 作者单位 | Chinese Academy of Sciences; Swiss Federal Institutes of Technology Domain; Swiss Federal Institute for Forest, Snow & Landscape Research; Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; Lanzhou University |
| 推荐引用方式 GB/T 7714 | . Changes in glacier surface temperature across the Third Pole from 2000 to 2021[J]. 中国科学院青藏高原研究所,2024,305. |
| APA | (2024).Changes in glacier surface temperature across the Third Pole from 2000 to 2021.REMOTE SENSING OF ENVIRONMENT,305. |
| MLA | "Changes in glacier surface temperature across the Third Pole from 2000 to 2021".REMOTE SENSING OF ENVIRONMENT 305(2024). |
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