Spatial-temporal characteristics of meteorological drought and its relationship with circulation indices over Songhua River Basin, China
Global warming has increased the risk of meteorological drought and associated hazards. Based on daily data from 35 meteorological stations in the Songhua River Basin (SRB) collected from 1960 to 2019, this study applied the standardised precipitation evapotranspiration index (SPEI) and used the ens...
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ftdoajarticles:oai:doaj.org/article:17cf9f23122e4600bbb0f632f1143c49 2024-09-15T18:08:09+00:00 Spatial-temporal characteristics of meteorological drought and its relationship with circulation indices over Songhua River Basin, China Jiale Xu Xiumei Li Jianwen Xue Xiangzhou Dou Wenqing Wu Gaopeng Wu Qiang Zhao 2024-06-01T00:00:00Z https://doi.org/10.2166/wcc.2024.016 https://doaj.org/article/17cf9f23122e4600bbb0f632f1143c49 EN eng IWA Publishing http://jwcc.iwaponline.com/content/15/6/2792 https://doaj.org/toc/2040-2244 https://doaj.org/toc/2408-9354 2040-2244 2408-9354 doi:10.2166/wcc.2024.016 https://doaj.org/article/17cf9f23122e4600bbb0f632f1143c49 Journal of Water and Climate Change, Vol 15, Iss 6, Pp 2792-2808 (2024) drought ensemble empirical mode decomposition songhua river basin spatiotemporal variation standardised precipitation evapotranspiration index Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 article 2024 ftdoajarticles https://doi.org/10.2166/wcc.2024.016 2024-08-05T17:48:52Z Global warming has increased the risk of meteorological drought and associated hazards. Based on daily data from 35 meteorological stations in the Songhua River Basin (SRB) collected from 1960 to 2019, this study applied the standardised precipitation evapotranspiration index (SPEI) and used the ensemble empirical mode decomposition (EEMD) method and Pettitt's mutation test to perform a partitioned segmentation analysis of the multi-temporal and spatial variations in the meteorological droughts affecting the basin in terms of frequency and intensity, and discussed the relationship between the atmospheric circulation index and meteorological drought. The results showed that the overall meteorological drought trends shifted from a drought to a humid trend from 1960 to 2019. The drought in the basin had periods of 3, 6.7, 15, and 30 years, with mutation points in 1968, 1980, 1997, and 2012. The drought trend in Regions I and IV of the entire basin was enhanced, while that in Regions II, III, and V was weakened. Drought in the basin was strongly influenced by the Arctic Oscillation (AO) and Southern Oscillation Index (SOI). HIGHLIGHTS The SRB shifted from a drought trend to a wet trend from 1960 to 2019.; High-frequency and high-intensity drought areas are mainly distributed in Regions I and IV.; Drought in the basin is greatly influenced by AO and SOI.; Article in Journal/Newspaper Global warming Directory of Open Access Journals: DOAJ Articles Journal of Water and Climate Change 15 6 2792 2808 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
drought ensemble empirical mode decomposition songhua river basin spatiotemporal variation standardised precipitation evapotranspiration index Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 |
spellingShingle |
drought ensemble empirical mode decomposition songhua river basin spatiotemporal variation standardised precipitation evapotranspiration index Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Jiale Xu Xiumei Li Jianwen Xue Xiangzhou Dou Wenqing Wu Gaopeng Wu Qiang Zhao Spatial-temporal characteristics of meteorological drought and its relationship with circulation indices over Songhua River Basin, China |
topic_facet |
drought ensemble empirical mode decomposition songhua river basin spatiotemporal variation standardised precipitation evapotranspiration index Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 |
description |
Global warming has increased the risk of meteorological drought and associated hazards. Based on daily data from 35 meteorological stations in the Songhua River Basin (SRB) collected from 1960 to 2019, this study applied the standardised precipitation evapotranspiration index (SPEI) and used the ensemble empirical mode decomposition (EEMD) method and Pettitt's mutation test to perform a partitioned segmentation analysis of the multi-temporal and spatial variations in the meteorological droughts affecting the basin in terms of frequency and intensity, and discussed the relationship between the atmospheric circulation index and meteorological drought. The results showed that the overall meteorological drought trends shifted from a drought to a humid trend from 1960 to 2019. The drought in the basin had periods of 3, 6.7, 15, and 30 years, with mutation points in 1968, 1980, 1997, and 2012. The drought trend in Regions I and IV of the entire basin was enhanced, while that in Regions II, III, and V was weakened. Drought in the basin was strongly influenced by the Arctic Oscillation (AO) and Southern Oscillation Index (SOI). HIGHLIGHTS The SRB shifted from a drought trend to a wet trend from 1960 to 2019.; High-frequency and high-intensity drought areas are mainly distributed in Regions I and IV.; Drought in the basin is greatly influenced by AO and SOI.; |
format |
Article in Journal/Newspaper |
author |
Jiale Xu Xiumei Li Jianwen Xue Xiangzhou Dou Wenqing Wu Gaopeng Wu Qiang Zhao |
author_facet |
Jiale Xu Xiumei Li Jianwen Xue Xiangzhou Dou Wenqing Wu Gaopeng Wu Qiang Zhao |
author_sort |
Jiale Xu |
title |
Spatial-temporal characteristics of meteorological drought and its relationship with circulation indices over Songhua River Basin, China |
title_short |
Spatial-temporal characteristics of meteorological drought and its relationship with circulation indices over Songhua River Basin, China |
title_full |
Spatial-temporal characteristics of meteorological drought and its relationship with circulation indices over Songhua River Basin, China |
title_fullStr |
Spatial-temporal characteristics of meteorological drought and its relationship with circulation indices over Songhua River Basin, China |
title_full_unstemmed |
Spatial-temporal characteristics of meteorological drought and its relationship with circulation indices over Songhua River Basin, China |
title_sort |
spatial-temporal characteristics of meteorological drought and its relationship with circulation indices over songhua river basin, china |
publisher |
IWA Publishing |
publishDate |
2024 |
url |
https://doi.org/10.2166/wcc.2024.016 https://doaj.org/article/17cf9f23122e4600bbb0f632f1143c49 |
genre |
Global warming |
genre_facet |
Global warming |
op_source |
Journal of Water and Climate Change, Vol 15, Iss 6, Pp 2792-2808 (2024) |
op_relation |
http://jwcc.iwaponline.com/content/15/6/2792 https://doaj.org/toc/2040-2244 https://doaj.org/toc/2408-9354 2040-2244 2408-9354 doi:10.2166/wcc.2024.016 https://doaj.org/article/17cf9f23122e4600bbb0f632f1143c49 |
op_doi |
https://doi.org/10.2166/wcc.2024.016 |
container_title |
Journal of Water and Climate Change |
container_volume |
15 |
container_issue |
6 |
container_start_page |
2792 |
op_container_end_page |
2808 |
_version_ |
1810445486274904064 |