Diverse impacts of strong and moderate intense El Niño–Southern Oscillation events on spring precipitation over Asia
Abstract El Niño–Southern Oscillation (ENSO) events are a major predictor of Asian spring precipitation. However, it is unclear whether ENSO events with different intensities have similar or different impacts on Asian spring precipitation. This question is explored in this study. According to their...
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crwiley:10.1002/joc.8206 2024-06-02T07:54:45+00:00 Diverse impacts of strong and moderate intense El Niño–Southern Oscillation events on spring precipitation over Asia Jing, Haotong Sun, Jianqi National Natural Science Foundation of China 2023 http://dx.doi.org/10.1002/joc.8206 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.8206 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 43, issue 13, page 6300-6313 ISSN 0899-8418 1097-0088 journal-article 2023 crwiley https://doi.org/10.1002/joc.8206 2024-05-03T11:22:44Z Abstract El Niño–Southern Oscillation (ENSO) events are a major predictor of Asian spring precipitation. However, it is unclear whether ENSO events with different intensities have similar or different impacts on Asian spring precipitation. This question is explored in this study. According to their intensity, ENSO events are divided into strong and moderate (S‐ENSO and M‐ENSO) events. The analysis indicates that S‐ENSO events have stronger sea surface temperature (SST) anomalies over the tropical Pacific and Indian oceans, and warm/cold events can lead to significantly more/less precipitation over Central Asia and East China as well as less/more precipitation over the Indo‐China Peninsula, Tibetan Plateau, and Maritime Continent. The S‐ENSO events significantly affect the Walker circulation and West Pacific anticyclone and excite an eastward‐propagating wave train over the midlatitude Northern Hemisphere. The changes in these atmospheric circulations further alter the dynamic and moisture conditions over the aforementioned Asian regions, consequently leading to precipitation anomalies. In contrast, the M‐ENSO events have relatively weak SST anomalies over the tropics, and the warm/cold events can result in more/less precipitation over Central Asia, Mongolia and northern China and less/more precipitation over northeastern Siberia, South China and the Maritime Continent. The impact of M‐ENSO events on spring precipitation over the Asian regions mainly occurs due to modulating effects on the western Pacific pattern, Aleutian Low, and anomalous anticyclones over northwestern Asia. The results in this study indicate that ENSO events of different intensities may have different impacts on Asian spring precipitation, which should be considered when predicting it. Article in Journal/Newspaper aleutian low Siberia Wiley Online Library Indian Pacific International Journal of Climatology |
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English |
description |
Abstract El Niño–Southern Oscillation (ENSO) events are a major predictor of Asian spring precipitation. However, it is unclear whether ENSO events with different intensities have similar or different impacts on Asian spring precipitation. This question is explored in this study. According to their intensity, ENSO events are divided into strong and moderate (S‐ENSO and M‐ENSO) events. The analysis indicates that S‐ENSO events have stronger sea surface temperature (SST) anomalies over the tropical Pacific and Indian oceans, and warm/cold events can lead to significantly more/less precipitation over Central Asia and East China as well as less/more precipitation over the Indo‐China Peninsula, Tibetan Plateau, and Maritime Continent. The S‐ENSO events significantly affect the Walker circulation and West Pacific anticyclone and excite an eastward‐propagating wave train over the midlatitude Northern Hemisphere. The changes in these atmospheric circulations further alter the dynamic and moisture conditions over the aforementioned Asian regions, consequently leading to precipitation anomalies. In contrast, the M‐ENSO events have relatively weak SST anomalies over the tropics, and the warm/cold events can result in more/less precipitation over Central Asia, Mongolia and northern China and less/more precipitation over northeastern Siberia, South China and the Maritime Continent. The impact of M‐ENSO events on spring precipitation over the Asian regions mainly occurs due to modulating effects on the western Pacific pattern, Aleutian Low, and anomalous anticyclones over northwestern Asia. The results in this study indicate that ENSO events of different intensities may have different impacts on Asian spring precipitation, which should be considered when predicting it. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Jing, Haotong Sun, Jianqi |
spellingShingle |
Jing, Haotong Sun, Jianqi Diverse impacts of strong and moderate intense El Niño–Southern Oscillation events on spring precipitation over Asia |
author_facet |
Jing, Haotong Sun, Jianqi |
author_sort |
Jing, Haotong |
title |
Diverse impacts of strong and moderate intense El Niño–Southern Oscillation events on spring precipitation over Asia |
title_short |
Diverse impacts of strong and moderate intense El Niño–Southern Oscillation events on spring precipitation over Asia |
title_full |
Diverse impacts of strong and moderate intense El Niño–Southern Oscillation events on spring precipitation over Asia |
title_fullStr |
Diverse impacts of strong and moderate intense El Niño–Southern Oscillation events on spring precipitation over Asia |
title_full_unstemmed |
Diverse impacts of strong and moderate intense El Niño–Southern Oscillation events on spring precipitation over Asia |
title_sort |
diverse impacts of strong and moderate intense el niño–southern oscillation events on spring precipitation over asia |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1002/joc.8206 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.8206 |
geographic |
Indian Pacific |
geographic_facet |
Indian Pacific |
genre |
aleutian low Siberia |
genre_facet |
aleutian low Siberia |
op_source |
International Journal of Climatology volume 43, issue 13, page 6300-6313 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.8206 |
container_title |
International Journal of Climatology |
_version_ |
1800743367036895232 |