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DOI | 10.1002/joc.6411 |
Regionalization of evapotranspiration using fuzzy dynamic clustering approach. Part 1: Formation of regions in India | |
Masanta, Swapan K.1; Vemavarapu, Srinivas V.1,2 | |
2019-12-12 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | India |
英文摘要 | Delineation of homogeneous reference evapotranspiration (ET0) regions is essential for different applications in hydro-meteorology. In conventional regionalization approaches, lumped (time-invariant) statistics such as mean, median or interquartile range of different hydrometeorological variables are often considered as attributes to delineate regions. Information on temporal dynamics of those variables is not utilized (as it is lost in lumped statistics), which if accounted could yield better regions. To address this, a new regionalization approach is presented in fuzzy framework in this Part 1 of a two-part series. In the proposed approach, information on temporal dynamics of predictor climate variables influencing ET0 is used for regionalization, and the delineated regions are subsequently validated for homogeneity using the predictand (ET0) related information. Effectiveness of the approach is demonstrated through a case study on India, which yielded 18 regions. They are shown to be statistically more homogeneous in ET0 when compared to the existing agro-ecological zones and regions formed using global fuzzy c-means clustering method. The homogeneous ET0 regions were found to be different from homogeneous actual evapotranspiration (ETa) regions delineated over India using the fuzzy dynamic clustering approach. Various applications of the homogeneous ET0 regions formed using the proposed approach are presented in Part 2 of this series. |
英文关键词 | ANOVA-based homogeneity fuzzy dynamic clustering hydrology regionalization of evapotranspiration spectral homogeneity statistical methods |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000502306300001 |
WOS关键词 | POTENTIAL EVAPOTRANSPIRATION ; VARIABLES ; RAINFALL ; IMPACT |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225510 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Indian Inst Sci, Dept Civil Engn, Bangalore, Karnataka, India; 2.Indian Inst Sci, Interdisciplinary Ctr Water Res ICWaR, Bangalore, Karnataka, India |
推荐引用方式 GB/T 7714 | Masanta, Swapan K.,Vemavarapu, Srinivas V.. Regionalization of evapotranspiration using fuzzy dynamic clustering approach. Part 1: Formation of regions in India[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019. |
APA | Masanta, Swapan K.,&Vemavarapu, Srinivas V..(2019).Regionalization of evapotranspiration using fuzzy dynamic clustering approach. Part 1: Formation of regions in India.INTERNATIONAL JOURNAL OF CLIMATOLOGY. |
MLA | Masanta, Swapan K.,et al."Regionalization of evapotranspiration using fuzzy dynamic clustering approach. Part 1: Formation of regions in India".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2019). |
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