Snow Disaster Early Warning in Pastoral Areas of Qinghai Province, China
| dc.contributor.author | Gao, Jinlong | |
| dc.contributor.author | Huang, Xiaodong | |
| dc.contributor.author | Ma, Xiaofang | |
| dc.contributor.author | Feng, Qisheng | |
| dc.contributor.author | Liang, Tiangang | |
| dc.contributor.author | Xie, Hongjie | |
| dc.date.accessioned | 2021-04-19T15:02:01Z | |
| dc.date.available | 2021-04-19T15:02:01Z | |
| dc.date.issued | 2017-05-12 | |
| dc.date.updated | 2021-04-19T15:02:01Z | |
| dc.description.abstract | It is important to predict snow disasters to prevent and reduce hazards in pastoral areas. In this study, we build a potential risk assessment model based on a logistic regression of 33 snow disaster events that occurred in Qinghai Province. A simulation model of the snow disaster early warning is established using a back propagation artificial neural network (BP-ANN) method and is then validated. The results show: (1) the potential risk of a snow disaster in the Qinghai Province is mainly determined by five factors. Three factors are positively associated, the maximum snow depth, snow-covered days (SCDs), and slope, and two are negative factors, annual mean temperature and per capita gross domestic product (GDP); (2) the key factors that contribute to the prediction of a snow disaster are (from the largest to smallest contribution): the mean temperature, probability of a spring snow disaster, potential risk of a snow disaster, continual days of a mean daily temperature below −5◦C, and fractional snow-covered area; and (3) the BP-ANN model for an early warning of snow disaster is a practicable predictive method with an overall accuracy of 80%. This model has quite a few advantages over previously published models, such as it is raster-based, has a high resolution, and has an ideal capacity of generalization and prediction. The model output not only tells which county has a disaster (published models can) but also tells where and the degree of damage at a 500 m pixel scale resolution (published models cannot). | |
| dc.description.department | Earth and Planetary Sciences | |
| dc.identifier | doi: 10.3390/rs9050475 | |
| dc.identifier.citation | Remote Sensing 9 (5): 475 (2017) | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12588/376 | |
| dc.rights | Attribution 4.0 United States | |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | snow disaster | |
| dc.subject | risk assessment | |
| dc.subject | early warning | |
| dc.subject | artificial neural network | |
| dc.subject | pastoral area | |
| dc.title | Snow Disaster Early Warning in Pastoral Areas of Qinghai Province, China | |
| dc.type | Article |