globalchange  > 气候变化事实与影响
DOI: 10.1007/s12040-019-1074-0
WOS记录号: WOS:000460066100002
论文题名:
Observed trends in indices for daily rainfall extremes specific to the agriculture sector in Lower Vellar River sub-basin, India: Extreme rainfall trends over Lower Vellar sub-basin
作者: Jayadas, Amanda; Ambujam, N. K.
通讯作者: Jayadas, Amanda
刊名: JOURNAL OF EARTH SYSTEM SCIENCE
ISSN: 2347-4327
EISSN: 0973-774X
出版年: 2019
卷: 128, 期:3
语种: 英语
英文关键词: Climate variability and change ; monsoon ; observations ; extreme climate indices ; agriculture and food security ; trend analysis
WOS关键词: NORTHEAST MONSOON RAINFALL ; PRECIPITATION ; EVENTS ; TEMPERATURE ; SOUTHERN ; SERIES ; SHIFTS ; IMPACT ; TESTS ; ENSO
WOS学科分类: Geosciences, Multidisciplinary ; Multidisciplinary Sciences
WOS研究方向: Geology ; Science & Technology - Other Topics
英文摘要:

Globally, climate change has caused changes in frequency and intensity of climate extremes such as heat waves, droughts, floods and tropical cyclones. There is a need to understand the pattern of regional climate extremes to develop crucial adaptation strategies for the farming community. This paper focuses on developing the Expert Team on Climate Risk and Sector-specific Indices for rainfall, relevant for the agriculture and food security sector. The indices have been developed for Lower Vellar River sub-basin, a coastal basin in Tamil Nadu, India. Trend analysis has been done for the climatic and cropping seasons in the sub-basin. Overall, there has not been any trend in the annual rainfall index values. The monthly trend values for the different indices have mostly exhibited insignificant trends throughout the study period (1978-2015) except for a few indices. Overall, the southwest monsoon season has shown a significantly decreasing trend in the indices. The northeast monsoon season has shown insignificant trends with positive slopes for most indices. There were insignificant or no trends in the indices for the summer season. The findings from the study can be used as a guiding tool for developing adaptation strategies, for the farming community.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/133724
Appears in Collections:气候变化事实与影响

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作者单位: Anna Univ, Ctr Water Resources, Chennai 600025, Tamil Nadu, India

Recommended Citation:
Jayadas, Amanda,Ambujam, N. K.. Observed trends in indices for daily rainfall extremes specific to the agriculture sector in Lower Vellar River sub-basin, India: Extreme rainfall trends over Lower Vellar sub-basin[J]. JOURNAL OF EARTH SYSTEM SCIENCE,2019-01-01,128(3)
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