Spatio‐temporal variation of dryness/wetness across the Pearl River basin, China, and relation to climate indices
ABSTRACT Correlations between wet/dry variations and El Niño‐Southern Oscillation ( ENSO ), North Atlantic Oscillation ( NAO ), Indian Ocean Dipole ( IOD ), and Pacific Decadal Oscillation ( PDO ) across the Pearl River basin were analysed at annual and seasonal time scales using the Pearson correla...
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crwiley:10.1002/joc.5005 2024-06-02T08:11:41+00:00 Spatio‐temporal variation of dryness/wetness across the Pearl River basin, China, and relation to climate indices Huang, Chong Zhang, Qiang Singh, Vijay P. Gu, Xihui Shi, Peijun National Science Foundation for Distinguished Young Scholars of China Fund for Creative Research Groups of National Natural Science Foundation of China National Science Foundation of China 2017 http://dx.doi.org/10.1002/joc.5005 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.5005 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5005 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 37, issue S1, page 318-332 ISSN 0899-8418 1097-0088 journal-article 2017 crwiley https://doi.org/10.1002/joc.5005 2024-05-03T11:37:25Z ABSTRACT Correlations between wet/dry variations and El Niño‐Southern Oscillation ( ENSO ), North Atlantic Oscillation ( NAO ), Indian Ocean Dipole ( IOD ), and Pacific Decadal Oscillation ( PDO ) across the Pearl River basin were analysed at annual and seasonal time scales using the Pearson correlation and moving correlation coefficient. The basin was divided into homogeneous climate zones using the fuzzy C‐means method. The influences of ENSO , NAO , IOD , and PDO on annual and seasonal wet/dry variations and impacts of warm and cold episodes of these indices on Standardized Precipitation Index‐based dry and wet conditions were investigated. Furthermore, the mechanisms of the influences were tried to be analysed from the perspective of moisture transmission. The results indicated that: (1) IOD , NAO , and ENSO are the principle factors driving annual, wet, and dry seasonal precipitation variations, respectively. Moreover, opposite correlations can be identified between precipitation and IOD , NAO , and ENSO in the same/previous year; (2) Correlations between precipitation variations at different time scales and climate indices are strongly stable. Furthermore, climate indices tend to have more significant and stable impacts on precipitation variations during the dry season than on annual precipitation and precipitation variations during the wet season; (3) There exist different moisture convergence and divergence phenomena in the Pearl River basin under anomalous year of climate indices, so the annual, wet, and dry seasonal precipitation characteristic will be affected; (4) ENSO exhibits remarkable impacts on the variations of dry conditions; and meanwhile ENSO and IOD have significant impacts on the variations of wet conditions. In general, the cold phase of climate indices tends to trigger a higher risk of droughts, and the warm phase of climate indices tends to cause higher rates of extreme wet conditions. Taking different climate indices as predictors, this study may help forecast precipitation variations ... Article in Journal/Newspaper North Atlantic North Atlantic oscillation Wiley Online Library Indian Pacific International Journal of Climatology 37 S1 318 332 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT Correlations between wet/dry variations and El Niño‐Southern Oscillation ( ENSO ), North Atlantic Oscillation ( NAO ), Indian Ocean Dipole ( IOD ), and Pacific Decadal Oscillation ( PDO ) across the Pearl River basin were analysed at annual and seasonal time scales using the Pearson correlation and moving correlation coefficient. The basin was divided into homogeneous climate zones using the fuzzy C‐means method. The influences of ENSO , NAO , IOD , and PDO on annual and seasonal wet/dry variations and impacts of warm and cold episodes of these indices on Standardized Precipitation Index‐based dry and wet conditions were investigated. Furthermore, the mechanisms of the influences were tried to be analysed from the perspective of moisture transmission. The results indicated that: (1) IOD , NAO , and ENSO are the principle factors driving annual, wet, and dry seasonal precipitation variations, respectively. Moreover, opposite correlations can be identified between precipitation and IOD , NAO , and ENSO in the same/previous year; (2) Correlations between precipitation variations at different time scales and climate indices are strongly stable. Furthermore, climate indices tend to have more significant and stable impacts on precipitation variations during the dry season than on annual precipitation and precipitation variations during the wet season; (3) There exist different moisture convergence and divergence phenomena in the Pearl River basin under anomalous year of climate indices, so the annual, wet, and dry seasonal precipitation characteristic will be affected; (4) ENSO exhibits remarkable impacts on the variations of dry conditions; and meanwhile ENSO and IOD have significant impacts on the variations of wet conditions. In general, the cold phase of climate indices tends to trigger a higher risk of droughts, and the warm phase of climate indices tends to cause higher rates of extreme wet conditions. Taking different climate indices as predictors, this study may help forecast precipitation variations ... |
author2 |
National Science Foundation for Distinguished Young Scholars of China Fund for Creative Research Groups of National Natural Science Foundation of China National Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Huang, Chong Zhang, Qiang Singh, Vijay P. Gu, Xihui Shi, Peijun |
spellingShingle |
Huang, Chong Zhang, Qiang Singh, Vijay P. Gu, Xihui Shi, Peijun Spatio‐temporal variation of dryness/wetness across the Pearl River basin, China, and relation to climate indices |
author_facet |
Huang, Chong Zhang, Qiang Singh, Vijay P. Gu, Xihui Shi, Peijun |
author_sort |
Huang, Chong |
title |
Spatio‐temporal variation of dryness/wetness across the Pearl River basin, China, and relation to climate indices |
title_short |
Spatio‐temporal variation of dryness/wetness across the Pearl River basin, China, and relation to climate indices |
title_full |
Spatio‐temporal variation of dryness/wetness across the Pearl River basin, China, and relation to climate indices |
title_fullStr |
Spatio‐temporal variation of dryness/wetness across the Pearl River basin, China, and relation to climate indices |
title_full_unstemmed |
Spatio‐temporal variation of dryness/wetness across the Pearl River basin, China, and relation to climate indices |
title_sort |
spatio‐temporal variation of dryness/wetness across the pearl river basin, china, and relation to climate indices |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1002/joc.5005 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.5005 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5005 |
geographic |
Indian Pacific |
geographic_facet |
Indian Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
International Journal of Climatology volume 37, issue S1, page 318-332 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.5005 |
container_title |
International Journal of Climatology |
container_volume |
37 |
container_issue |
S1 |
container_start_page |
318 |
op_container_end_page |
332 |
_version_ |
1800757916590931968 |