The Spring Heat Source Over the Qinghai–Tibetan Plateau Linked With the Winter Warm Arctic–Cold Siberia Pattern Impacting Summer Drought in China
The atmospheric heat source over the Qinghai–Tibetan Plateau (QTP) in spring has an important impact on the climate of the surrounding regions. However, there have been few systematic studies of the dominant mode of the heat source and the cross-seasonal connections with the preceding winter and fol...
Published in: | Frontiers in Earth Science |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Frontiers Media S.A.
2022
|
Subjects: | |
Online Access: | https://doi.org/10.3389/feart.2022.835101 https://doaj.org/article/7bda79ffc8ee4786b8fb7500685c2bc5 |
id |
ftdoajarticles:oai:doaj.org/article:7bda79ffc8ee4786b8fb7500685c2bc5 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:7bda79ffc8ee4786b8fb7500685c2bc5 2023-05-15T14:58:12+02:00 The Spring Heat Source Over the Qinghai–Tibetan Plateau Linked With the Winter Warm Arctic–Cold Siberia Pattern Impacting Summer Drought in China Yumeng Yang Liang Zhao Xinyong Shen Ziniu Xiao Qingquan Li 2022-02-01T00:00:00Z https://doi.org/10.3389/feart.2022.835101 https://doaj.org/article/7bda79ffc8ee4786b8fb7500685c2bc5 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/feart.2022.835101/full https://doaj.org/toc/2296-6463 2296-6463 doi:10.3389/feart.2022.835101 https://doaj.org/article/7bda79ffc8ee4786b8fb7500685c2bc5 Frontiers in Earth Science, Vol 10 (2022) atmospheric heat source Qinghai-Tibetan Plateau warm arctic-cold siberia east asian summer monsoon precipitation drought Science Q article 2022 ftdoajarticles https://doi.org/10.3389/feart.2022.835101 2022-12-31T03:41:54Z The atmospheric heat source over the Qinghai–Tibetan Plateau (QTP) in spring has an important impact on the climate of the surrounding regions. However, there have been few systematic studies of the dominant mode of the heat source and the cross-seasonal connections with the preceding winter and following summer. Using a distinct empirical orthogonal function (DEOF) decomposition method, we obtained the leading mode of the spring heat source over the QTP and the surrounding regions and analyzed its precursors in the previous winter and lagging effects in the following summer. Our results show that the first mode (DEOF1) was characterized by a warm plateau and cold surrounding regions. The positive phase was significantly associated with the warm Arctic–cold Siberia (WACS) pattern (r = 0.39, p = .01) and the La Niña-like SST anomaly in the Pacific in the preceding winter and the following East Asian subtropical summer monsoon (r = –0.44, p = .01), resulting in a widespread drought in China during the following summer. The cold anomaly in Siberia and the warm anomaly at mid-to low latitudes in winter associated with the WACS pattern coincide with the DEOF1 mode of the heat source over the QTP and its surroundings through change of meridional temperature gradient and wave-flow interactions. A mid-latitude wave train excited by the WACS and the thermal difference in the meridional direction of the spring DEOF1 mode caused high-pressure anomalies over the QTP and the mid-latitude region of East Asia, influencing central and eastern China. This anomaly was not conducive to the northward advancement of the East Asian summer monsoon, resulting in drought in most of China in spring and summer. The cross-seasonal relationship between the main mode of the spring heat source on the QTP and the preceding winter WACS pattern and the following East Asian summer monsoon can be used as a reference in climate prediction studies. Article in Journal/Newspaper Arctic Siberia Directory of Open Access Journals: DOAJ Articles Arctic Pacific Frontiers in Earth Science 10 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
atmospheric heat source Qinghai-Tibetan Plateau warm arctic-cold siberia east asian summer monsoon precipitation drought Science Q |
spellingShingle |
atmospheric heat source Qinghai-Tibetan Plateau warm arctic-cold siberia east asian summer monsoon precipitation drought Science Q Yumeng Yang Liang Zhao Xinyong Shen Ziniu Xiao Qingquan Li The Spring Heat Source Over the Qinghai–Tibetan Plateau Linked With the Winter Warm Arctic–Cold Siberia Pattern Impacting Summer Drought in China |
topic_facet |
atmospheric heat source Qinghai-Tibetan Plateau warm arctic-cold siberia east asian summer monsoon precipitation drought Science Q |
description |
The atmospheric heat source over the Qinghai–Tibetan Plateau (QTP) in spring has an important impact on the climate of the surrounding regions. However, there have been few systematic studies of the dominant mode of the heat source and the cross-seasonal connections with the preceding winter and following summer. Using a distinct empirical orthogonal function (DEOF) decomposition method, we obtained the leading mode of the spring heat source over the QTP and the surrounding regions and analyzed its precursors in the previous winter and lagging effects in the following summer. Our results show that the first mode (DEOF1) was characterized by a warm plateau and cold surrounding regions. The positive phase was significantly associated with the warm Arctic–cold Siberia (WACS) pattern (r = 0.39, p = .01) and the La Niña-like SST anomaly in the Pacific in the preceding winter and the following East Asian subtropical summer monsoon (r = –0.44, p = .01), resulting in a widespread drought in China during the following summer. The cold anomaly in Siberia and the warm anomaly at mid-to low latitudes in winter associated with the WACS pattern coincide with the DEOF1 mode of the heat source over the QTP and its surroundings through change of meridional temperature gradient and wave-flow interactions. A mid-latitude wave train excited by the WACS and the thermal difference in the meridional direction of the spring DEOF1 mode caused high-pressure anomalies over the QTP and the mid-latitude region of East Asia, influencing central and eastern China. This anomaly was not conducive to the northward advancement of the East Asian summer monsoon, resulting in drought in most of China in spring and summer. The cross-seasonal relationship between the main mode of the spring heat source on the QTP and the preceding winter WACS pattern and the following East Asian summer monsoon can be used as a reference in climate prediction studies. |
format |
Article in Journal/Newspaper |
author |
Yumeng Yang Liang Zhao Xinyong Shen Ziniu Xiao Qingquan Li |
author_facet |
Yumeng Yang Liang Zhao Xinyong Shen Ziniu Xiao Qingquan Li |
author_sort |
Yumeng Yang |
title |
The Spring Heat Source Over the Qinghai–Tibetan Plateau Linked With the Winter Warm Arctic–Cold Siberia Pattern Impacting Summer Drought in China |
title_short |
The Spring Heat Source Over the Qinghai–Tibetan Plateau Linked With the Winter Warm Arctic–Cold Siberia Pattern Impacting Summer Drought in China |
title_full |
The Spring Heat Source Over the Qinghai–Tibetan Plateau Linked With the Winter Warm Arctic–Cold Siberia Pattern Impacting Summer Drought in China |
title_fullStr |
The Spring Heat Source Over the Qinghai–Tibetan Plateau Linked With the Winter Warm Arctic–Cold Siberia Pattern Impacting Summer Drought in China |
title_full_unstemmed |
The Spring Heat Source Over the Qinghai–Tibetan Plateau Linked With the Winter Warm Arctic–Cold Siberia Pattern Impacting Summer Drought in China |
title_sort |
spring heat source over the qinghai–tibetan plateau linked with the winter warm arctic–cold siberia pattern impacting summer drought in china |
publisher |
Frontiers Media S.A. |
publishDate |
2022 |
url |
https://doi.org/10.3389/feart.2022.835101 https://doaj.org/article/7bda79ffc8ee4786b8fb7500685c2bc5 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Siberia |
genre_facet |
Arctic Siberia |
op_source |
Frontiers in Earth Science, Vol 10 (2022) |
op_relation |
https://www.frontiersin.org/articles/10.3389/feart.2022.835101/full https://doaj.org/toc/2296-6463 2296-6463 doi:10.3389/feart.2022.835101 https://doaj.org/article/7bda79ffc8ee4786b8fb7500685c2bc5 |
op_doi |
https://doi.org/10.3389/feart.2022.835101 |
container_title |
Frontiers in Earth Science |
container_volume |
10 |
_version_ |
1766330285980385280 |