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Spatial Heterogeneity in the Occurrence Probability of Rainstorms over China
Sang, Yan-Fang
2018-12-01
Source PublicationENTROPY
ISSN1099-4300
Volume20Issue:12Pages:8
Corresponding AuthorSang, Yan-Fang(sangyf@igsnrr.ac.cn)
AbstractDetecting the spatial heterogeneity in the potential occurrence probability of water disasters is a foremost and critical issue for the prevention and mitigation of water disasters. However, it is also a challenging task due to the lack of effective approaches. In the article, the entropy index was employed and those daily rainfall data at 520 stations were used to investigate the occurrences of rainstorms in China. Results indicated that the entropy results were mainly determined by statistical characters (mean value and standard deviation) of rainfall data, and can categorically describe the spatial heterogeneity in the occurrence of rainstorms by considering both their occurrence frequencies and magnitudes. Smaller entropy values mean that rainstorm events with bigger magnitudes were more likely to occur. Moreover, the spatial distribution of entropy values kept a good relationship with the hydroclimate conditions, described by the aridity index. In China, rainstorms are more to likely occur in the Pearl River basin, Southeast River basin, lower-reach of the Yangtze River basin, Huai River basin, and southwest corner of China. In summary, the entropy index can be an effective alternative for quantifying the potential occurrence probability of rainstorms. Four thresholds of entropy value were given to distinguish the occurrence frequency of rainstorms as five levels: very high, high, mid, low and very low, which can be a helpful reference for the study of daily rainstorms in other basins and regions.
Keywordrainstorm water disasters spatiotemporal variability entropy occurrence probability
DOI10.3390/e20120958
WOS KeywordMONITORING CHANGES ; EXTREMES ; PRECIPITATION ; UNCERTAINTY ; ENTROPY
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program[2017YFA0603702] ; National Natural Science Foundation of China[91647110] ; Youth Innovation Promotion Association CAS[2017074] ; Program for the Bingwei Excellent Talents from the Institute of Geographic Sciences and Natural Resources Research, CAS ; National Mountain Flood Disaster Investigation Project[SHZH-IWHR-57]
Funding OrganizationNational Key Research and Development Program ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Program for the Bingwei Excellent Talents from the Institute of Geographic Sciences and Natural Resources Research, CAS ; National Mountain Flood Disaster Investigation Project
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000454282000066
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/51290
Collection中国科学院地理科学与资源研究所
Corresponding AuthorSang, Yan-Fang
AffiliationChinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Sang, Yan-Fang. Spatial Heterogeneity in the Occurrence Probability of Rainstorms over China[J]. ENTROPY,2018,20(12):8.
APA Sang, Yan-Fang.(2018).Spatial Heterogeneity in the Occurrence Probability of Rainstorms over China.ENTROPY,20(12),8.
MLA Sang, Yan-Fang."Spatial Heterogeneity in the Occurrence Probability of Rainstorms over China".ENTROPY 20.12(2018):8.
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