Enhanced Warming and Intensification of the Kuroshio Extension, 1999–2013
The Pacific climate regime has anomalous warm and cool periods every decade associated with atmospheric circulation changes, which are known to have modulated the tropical and subtropical Pacific during the recent Pacific hiatus regime (1999–2013). However, the influence of the hiatus regime on the...
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ftdoajarticles:oai:doaj.org/article:88dcc19109304bc4a2bd98a1c22fda87 2023-05-15T13:14:58+02:00 Enhanced Warming and Intensification of the Kuroshio Extension, 1999–2013 You-Lin Wang Chau-Ron Wu 2019-01-01T00:00:00Z https://doi.org/10.3390/rs11010101 https://doaj.org/article/88dcc19109304bc4a2bd98a1c22fda87 EN eng MDPI AG http://www.mdpi.com/2072-4292/11/1/101 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs11010101 https://doaj.org/article/88dcc19109304bc4a2bd98a1c22fda87 Remote Sensing, Vol 11, Iss 1, p 101 (2019) Kuroshio Extension pacific regime shift climate change Science Q article 2019 ftdoajarticles https://doi.org/10.3390/rs11010101 2022-12-30T20:32:59Z The Pacific climate regime has anomalous warm and cool periods every decade associated with atmospheric circulation changes, which are known to have modulated the tropical and subtropical Pacific during the recent Pacific hiatus regime (1999–2013). However, the influence of the hiatus regime on the Kuroshio Extension (KE) remains unclear. Here, we show that the KE jet underwent enhanced warming (increased 1–1.5 °C), intensification (8–19%) and northward migration (0.5–1°). The KE jet became more perturbed in the upstream region (increased by 70%, west of 146°E) but became stable downstream (perturbation decreased 5–11%, east of 146°E). A poleward shift of the mid-latitude jet stream and weakened Aleutian Low (AL) contributed to the northward migration and intensification of the KE jet, respectively. The weakened AL was associated with negative wind stress curl (WSC) in the eastern Pacific, and this WSC generated an underlying positive sea surface height anomaly that propagated westward, intensifying the KE jet when it reached the KE region. Since the recent Pacific hiatus regime ended after 2013, these changes of the KE jet may reverse during the ongoing warming regime. Article in Journal/Newspaper aleutian low Directory of Open Access Journals: DOAJ Articles Pacific Curl ENVELOPE(-63.071,-63.071,-70.797,-70.797) Remote Sensing 11 1 101 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Kuroshio Extension pacific regime shift climate change Science Q |
spellingShingle |
Kuroshio Extension pacific regime shift climate change Science Q You-Lin Wang Chau-Ron Wu Enhanced Warming and Intensification of the Kuroshio Extension, 1999–2013 |
topic_facet |
Kuroshio Extension pacific regime shift climate change Science Q |
description |
The Pacific climate regime has anomalous warm and cool periods every decade associated with atmospheric circulation changes, which are known to have modulated the tropical and subtropical Pacific during the recent Pacific hiatus regime (1999–2013). However, the influence of the hiatus regime on the Kuroshio Extension (KE) remains unclear. Here, we show that the KE jet underwent enhanced warming (increased 1–1.5 °C), intensification (8–19%) and northward migration (0.5–1°). The KE jet became more perturbed in the upstream region (increased by 70%, west of 146°E) but became stable downstream (perturbation decreased 5–11%, east of 146°E). A poleward shift of the mid-latitude jet stream and weakened Aleutian Low (AL) contributed to the northward migration and intensification of the KE jet, respectively. The weakened AL was associated with negative wind stress curl (WSC) in the eastern Pacific, and this WSC generated an underlying positive sea surface height anomaly that propagated westward, intensifying the KE jet when it reached the KE region. Since the recent Pacific hiatus regime ended after 2013, these changes of the KE jet may reverse during the ongoing warming regime. |
format |
Article in Journal/Newspaper |
author |
You-Lin Wang Chau-Ron Wu |
author_facet |
You-Lin Wang Chau-Ron Wu |
author_sort |
You-Lin Wang |
title |
Enhanced Warming and Intensification of the Kuroshio Extension, 1999–2013 |
title_short |
Enhanced Warming and Intensification of the Kuroshio Extension, 1999–2013 |
title_full |
Enhanced Warming and Intensification of the Kuroshio Extension, 1999–2013 |
title_fullStr |
Enhanced Warming and Intensification of the Kuroshio Extension, 1999–2013 |
title_full_unstemmed |
Enhanced Warming and Intensification of the Kuroshio Extension, 1999–2013 |
title_sort |
enhanced warming and intensification of the kuroshio extension, 1999–2013 |
publisher |
MDPI AG |
publishDate |
2019 |
url |
https://doi.org/10.3390/rs11010101 https://doaj.org/article/88dcc19109304bc4a2bd98a1c22fda87 |
long_lat |
ENVELOPE(-63.071,-63.071,-70.797,-70.797) |
geographic |
Pacific Curl |
geographic_facet |
Pacific Curl |
genre |
aleutian low |
genre_facet |
aleutian low |
op_source |
Remote Sensing, Vol 11, Iss 1, p 101 (2019) |
op_relation |
http://www.mdpi.com/2072-4292/11/1/101 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs11010101 https://doaj.org/article/88dcc19109304bc4a2bd98a1c22fda87 |
op_doi |
https://doi.org/10.3390/rs11010101 |
container_title |
Remote Sensing |
container_volume |
11 |
container_issue |
1 |
container_start_page |
101 |
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1766266320315219968 |