| 我国西藏地区冰湖溃决灾害综述 |
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| 引用本文： | 刘建康,张佳佳,高波,李元灵,李梦宇,吾金多吉,周路旭. 我国西藏地区冰湖溃决灾害综述[J]. 冰川冻土, 2019, 41(6): 1335-1347. DOI: 10.7522/j.issn.1000-0240.2019.0073 |
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| 作者姓名： | 刘建康 张佳佳 高波 李元灵 李梦宇 吾金多吉 周路旭 |
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| 作者单位： | 1. 中国地质科学院 探矿工艺研究所, 四川 成都 611734;2. 中国地质调查局 地质灾害防治技术中心, 四川 成都 611734;3. 西藏自治区地质矿产勘查开发局 第二地质大队, 西藏 拉萨 850000;4. 中国地质大学(北京), 北京 100083 |
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| 基金项目： | 中国地质调查局项目（DD20160279；DD20190644；20190505）；第二次青藏高原综合科学考察研究（2019QZKK0902）；国家自然科学基金项目（41402315）资助 |
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| 摘 要： | 冰湖溃决是我国西藏地区典型的地质灾害类型之一，具有突发性强、规模大、破坏力强和危害范围广等特点，往往造成下游地区遭受惨重的生命财产损失。冰湖溃决成因特征是形成机制、早期识别和危险性评价等冰湖溃决研究的基础，受客观条件限制，我国西藏冰湖溃决的基础调查工作存在资料分散甚至缺失的局限性。为解决这个难题，通过资料收集、遥感解译和野外调查等技术手段，重新梳理了我国西藏地区的冰湖溃决事件及基本特征，共调查出33个冰湖37次溃决事件，其中2个为冰川阻塞湖（简称冰川湖），划定了冰湖溃决高发地带的地理分布位置，分析出冰崩/冰滑坡、埋藏冰融化、冰川融水、强降水、泥石流和上游冰湖溃决洪水6种诱发原因，为我国西藏冰湖溃决研究提供基础调查成果和参考依据。
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| 关 键 词： | 冰湖溃决 冰碛湖 冰川阻塞湖 西藏 泥石流 |
| 收稿时间： | 2018-10-18 |
| 修稿时间： | 2019-08-16 |
An overview of glacial lake outburst flood in Tibet,China |
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| LIU Jiankang,ZHANG Jiajia,GAO Bo,LI Yuanling,LI Mengyu,Wujin Duoji,ZHOU Luxu. An overview of glacial lake outburst flood in Tibet,China[J]. Journal of Glaciology and Geocryology, 2019, 41(6): 1335-1347. DOI: 10.7522/j.issn.1000-0240.2019.0073 |
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| Authors: | LIU Jiankang ZHANG Jiajia GAO Bo LI Yuanling LI Mengyu Wujin Duoji ZHOU Luxu |
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| Affiliation: | 1. Institute of Exploration Technology, CAGS, Chengdu 611734, China;2. Technical Center for Geological Hazard Prevention and Control, CGS, Chengdu 611734, China;3. NO.2 Geological Team, Tibet Autonomous Region Geological and Mineral Exploration and Development Bureau, Lhasa 850000, China;4. China University of Geosciences, Beijing 100083, China |
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| Abstract: | Glacial lake outburst flood (GLOF) is one of the typical geo-hazards in Tibet, which are unexpected, large-in-scale, destructive-in-power and wide-in-impact, causing heavy loss to the lives and properties in the downstream region. To figure out the genetic feature of GLOF is a premised phase to research its formation mechanisms, early identification and risk assessment. However, due to some limitations of objective conditions, the GLOF investigation in China's Tibet is limited. To solve this problem, by methods of data collection, remote sensing and field survey, this paper has renewed GLOFs in Tibet and their basic characteristics, investigated 37 GLOFs in 33 glacial lakes included two ice-dammed lakes, drawn a high-risk zone of GLOFs in Tibet, analyzed 6 inducing factors for GLOFs in Tibet, including the ice avalanche/slide, dead ice melting, snow and ice melting, heavy rainfall, debris flow and GLOF in upstream. This investigation is aimed to provide survey result and reference for deep research on the GLOF in Tibet. |
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| Keywords: | GLOF moraine-dammed lake ice-dammed lake Tibet debris flow |
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