| Global snowmelt flood disasters and their impact from 1900 to 2020北大核心CSCD |
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| 引用本文： | 崔曼仪,周刚,张大弘,张世强.Global snowmelt flood disasters and their impact from 1900 to 2020北大核心CSCD[J].冰川冻土,2022,44(6):1898-1911. |
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| 作者姓名： | 崔曼仪 周刚 张大弘 张世强 |
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| 作者单位： | 1.西北大学 陕西省地表系统与环境承载力重点实验室，陕西 西安 710127;2.西北大学 城市与环境学院，陕西 西安 710127 |
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| 基金项目： | 国家重点研发计划课题(2019YFC1510503);自然科学基金重点项目(41730751);自然科学基金项目(42171124) |
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| 摘 要： | Under the background of climate warming, the occurrence time, frequency, intensity, and impact of snowmelt flood disasters have changed significantly. Thus, establishing a global snowmelt flood disaster database is particularly important for disaster risk management. With the help of a web crawler, and based on multiple data sources such as natural disaster databases, documents, books, government agency websites, and news media, this study collected relevant information of snowmelt floods and mixed floods and established standards for identifying snowmelt flood events and their disaster impacts based on data from the different sources. Following the screening, sorting, fusion, and integration of snowmelt flood events, a global snowmelt flood disaster dataset containing 579 pieces of data with strong pertinence and reliability was constructed. The temporal and spatial distribution characteristics of global snowmelt flood disasters from 1900 to 2020 were preliminarily analyzed. The results showed that the snowmelt floods were mainly distributed between 30° N and 60° N, with more mixed floods south of 50° N and more snowmelt floods north of 50° N. Spring was the period of highest incidence of snowmelt flood disasters, followed by winter, summer, and autumn, respectively. The snowmelt floods that occurred in spring, autumn, and winter were mainly at 40°~50° N, and the snowmelt floods that occurred in summer were mainly at 30°~40° N. Compared with the snowmelt floods, the mixed floods were more frequent and more destructive, and their frequency increased with climate warming. The results provide a scientific basis for risk prevention and loss assessment of global snowmelt flood disasters. © 2022 Science Press (China).
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| 关 键 词： | 融雪洪水灾害 数据库 时空特征 中高纬地区 |
| 收稿时间： | 2022-03-15 |
| 修稿时间： | 2022-05-25 |
Global snowmelt flood disasters and their impact from 1900 to 2020 |
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| Manyi CUI,Gang ZHOU,Dahong ZHANG,Shiqiang ZHANG.Global snowmelt flood disasters and their impact from 1900 to 2020[J].Journal of Glaciology and Geocryology,2022,44(6):1898-1911. |
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| Authors: | Manyi CUI Gang ZHOU Dahong ZHANG Shiqiang ZHANG |
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| Institution: | 1.Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity，Northwest University，Xi’an 710127，China;2.College of Urban and Environmental Sciences，Northwest University，Xi’an 710127，China |
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| Abstract: | Under the background of climate warming， the occurrence time， frequency， intensity， and impact of snowmelt flood disasters have changed significantly. Thus， establishing a global snowmelt flood disaster database is particularly important for disaster risk management. With the help of a web crawler， and based on multiple data sources such as natural disaster databases， documents， books， government agency websites， and news media， this study collected relevant information of snowmelt floods and mixed floods and established standards for identifying snowmelt flood events and their disaster impacts based on data from the different sources. Following the screening， sorting， fusion， and integration of snowmelt flood events， a global snowmelt flood disaster dataset containing 579 pieces of data with strong pertinence and reliability was constructed. The temporal and spatial distribution characteristics of global snowmelt flood disasters from 1900 to 2020 were preliminarily analyzed. The results showed that the snowmelt floods were mainly distributed between 30° N and 60° N， with more mixed floods south of 50° N and more snowmelt floods north of 50° N. Spring was the period of highest incidence of snowmelt flood disasters， followed by winter， summer， and autumn， respectively. The snowmelt floods that occurred in spring， autumn， and winter were mainly at 40°~50° N， and the snowmelt floods that occurred in summer were mainly at 30°~40° N. Compared with the snowmelt floods， the mixed floods were more frequent and more destructive， and their frequency increased with climate warming. The results provide a scientific basis for risk prevention and loss assessment of global snowmelt flood disasters. |
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| Keywords: | snowmelt flood disaster database spatiotemporal characteristics middle-high latitude regions |
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