DOI: 10.1007/s11069-021-04700-1
论文题名: Analysis and visualization of meteorological extremes in humid subtropical regions
作者: Pandey B.K. ; Khare D. ; Tiwari H. ; Mishra P.K.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 108, 期: 1 起始页码: 661
结束页码: 687
语种: 英语
中文关键词: Discrete wavelet transform
; Innovative trend analysis
; Mann-Kendall
; Precipitation
; Temperature
英文摘要: Understanding the variability in extreme meteorological events due to climate change and anthropogenic activities is crucial to ensure sustainable development. In this paper, the variation in precipitation and temperature in the Upper Narmada Basin (UNB), a humid subtropical region of central India, during 1901–2002, was analyzed using the Mann-Kendall (MK) test with the Sen’s slope (SS) estimator and innovative trend analysis (ITA). As a result, a significant negative trend in the annual precipitation occurred at two stations (12.5%) in the UNB, whereas no well-defined significant seasonal trends were detected. Moreover, in the annual mean temperature, a significant increasing trend occurred in the basin, with the highest and lowest rates of 0.470 °C/10 year and 0.287 °C/10 year, respectively. The seasonal temperature exhibited a significant increasing trend in the spring and autumn seasons. The trends in the extreme values were investigated using the ITA method. Furthermore, a quantitative study was carried out to measure the suitability of the ITA by comparing it with nonparametric methods (the MK test and SS estimator). The results endorse the reliability of the ITA method and show strong agreement between the trends and statistics of the parametric (ITA) and nonparametric approaches. To visualize the extreme events in meteorological series, a discrete wavelet transform (DWT) was employed with the Daubechies (db3) mother wavelet. In addition, change points were detected using the sequential Mann-Kendall (SQMK) and cumulative sum (CUSUM) tests. Significant change points in the annual precipitation were detected at nine stations (56.25%) during 1955–1958, while only three stations (18.75%) exhibited the annual mean temperature during 1960. The findings of this study could provide support to understand the variability in the meteorological trend over the basin and can help with water resource planning in future development. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169279
Appears in Collections: 气候变化与战略
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作者单位: Department of Civil Engineering, Birla Institute of Technology & Science Pilani - Dubai Campus, Dubai, United Arab Emirates; Department of Water Resources Development & Management, Indian Institute of Technology Roorkee, Roorkee, India; Floodkon Consultants LLP, Delhi, India; Water Resources Systems Division, National Institute of Hydrology, Roorkee, Uttarakhand, India
Recommended Citation:
Pandey B.K.,Khare D.,Tiwari H.,et al. Analysis and visualization of meteorological extremes in humid subtropical regions[J]. Natural Hazards,2021-01-01,108(1)