基于CESM模式的4至6月热带西南印度洋海表异常增暖对印太气候影响的研究*

doi:10.11978/2023097

热带海洋学报 ›› 2024, Vol. 43 ›› Issue (2): 12-20.doi: 10.11978/2023097CSTR: 32234.14.2023097

基于CESM模式的4至6月热带西南印度洋海表异常增暖对印太气候影响的研究^*

陈泽生¹(), 李振宁², 郭媛媛³, 王腾¹, 杜岩¹()

1.热带海洋环境国家重点实验室(中国科学院南海海洋研究所), 广东广州 510301
2.环境与可持续发展学部(香港科技大学), 香港 999077
3.大气与海洋科学系/大气科学研究院(复旦大学), 上海 200438

收稿日期:2023-07-24 修回日期:2023-09-04 出版日期:2024-03-10 发布日期:2024-03-26
作者简介:
陈泽生(1987—), 男, 广东省汕头市人, 副研究员, 从事热带海气相互作用研究。email: zshchen@scsio.ac.cn
*感谢两位匿名审稿专家和编辑对稿件提出的修改意见。
基金资助:
国家重点研发计划项目(2019YFA0606703); 中国科学院战略性先导科技专项(B类)(XDB42010305); 国家自然科学基金项目(42175043); 中国科学院青年创新促进会项目(2022347); 热带海洋环境国家重点实验室自主项目(LTOZZ2102)

Impacts of the anomalous southwest tropical Indian Ocean SST warming on Indo-Pacific climate from April to June based on the CESM model^*

CHEN Zesheng¹(), LI Zhenning², GUO Yuanyuan³, WANG Teng¹, DU Yan¹()

1. State Key Laboratory of Tropical Oceanography (South China Sea Institute of Oceanology, Chinese Academy of Sciences), Guangzhou 510301, China
2. Division of Environment and Sustainability (The Hong Kong University of Science and Technology), Hong Kong 999077, China
3. Department of Atmospheric and Oceanic Sciences & Institute of Atmospheric Sciences (Fudan University), Shanghai 200438, China

Received:2023-07-24 Revised:2023-09-04 Online:2024-03-10 Published:2024-03-26
Supported by:
National Key R&D Projects of China(2019YFA0606703); Strategic Priority Research Program of the Chinese Academy of Sciences(XDB42010305); National Natural Science Foundation of China(42175043); Youth Innovation Promotion Association CAS(2022347); Independent Research Project Program of State Key Laboratory of Tropical Oceanography(LTOZZ2102)

摘要/Abstract

摘要：

热带西南印度洋温跃层深度较浅, 该海域温跃层的变化与海表温度具有密切的联系, 具有独特的海气相互作用。文章基于观测资料和模式资料分析了4至6月热带西南印度洋海表增暖对热带印度洋-西太平洋的气候影响。结果表明, 4至6月热带西南印度洋海表增暖增强了当地的对流活动, 导致热带西南印度洋降水的增加; 热带印度洋的低空出现了关于赤道反对称的“C型”风场异常, 即赤道以北为异常的东北风, 赤道以南为异常的西北风; 5月至6月北印度洋低空异常的东北风会减弱亚洲夏季风, 北印度洋海表潜热释放减少, 北印度洋海表增暖。热带西南印度洋海表增暖的气候影响并不局限在热带印度洋地区, 其增暖能加热对流层大气, 激发东传的大气开尔文波, 热带西北太平洋低层的东风响应在信风的背景下也能触发局地的海气正反馈, 两者共同有利于热带西北太平洋地区低空反气旋式风场的维持。反气旋式风场异常在5、6月能增强季风水汽输送, 使得我国长江流域的降雨显著增多。该研究结果揭示了热带西南印度洋加热异常可引起横跨北印度洋-热带西太平洋的海气相互作用, 为我国东部地区夏季降水预报提供了有益参考。

关键词: 跨洋盆影响, 海气相互作用, 降水, 反气旋

Abstract:

The thermocline depth in the southwest tropical Indian Ocean (TIO) is shallow, and thermocline variations are closely related to the sea surface temperature, making southwest TIO feature a unique ocean-atmosphere interaction. Based on the observation and model data, this study analyzed the climatic effects of the southwest TIO SST warming on the tropical Indo-Western Pacific from April to June. The results show that the local convective activities are enhanced by the warming of the southwest TIO from April to June, and the precipitation in the southwest TIO increases. In the lower troposphere of the tropical Indian Ocean, a “C-shaped” wind anomaly pattern appears with abnormal northeast winds north of the equator and abnormal northwest winds south of the equator. From May to June, abnormal north-easterly winds in the North Indian Ocean can weaken the Asian summer monsoon, reduce the latent heat release of the North Indian Ocean, and warm the North Indian Ocean. The climatic effect of the southwest TIO SST warming is not limited to the tropical Indian Ocean region. The warming can heat the tropospheric atmosphere and stimulate the eastward atmospheric Kelvin wave, and the easterly wind response in the lower troposphere of the tropical northwest Pacific Ocean can also trigger local positive ocean-atmosphere feedback under the background of trade winds. Both are conducive to the maintenance of anticyclonic wind anomaly at the lower troposphere of the tropical northwest Pacific. The anticyclonic wind anomaly can enhance the monsoon water vapor transport in May and June, which makes the rainfall increase significantly over the Yangtze River Valley in China. This study reveals that the heating anomaly in the southwest TIO could cause ocean-atmosphere interaction across the north Indian Ocean and tropical western North Pacific Ocean, which would provide a useful reference for the summer precipitation forecast in eastern China.

Key words: trans-basin influence, ocean-atmosphere interaction, precipitation, anticyclone

陈泽生, 李振宁, 郭媛媛, 王腾, 杜岩. 基于CESM模式的4至6月热带西南印度洋海表异常增暖对印太气候影响的研究^*[J]. 热带海洋学报, 2024, 43(2): 12-20.

CHEN Zesheng, LI Zhenning, GUO Yuanyuan, WANG Teng, DU Yan. Impacts of the anomalous southwest tropical Indian Ocean SST warming on Indo-Pacific climate from April to June based on the CESM model^*[J]. Journal of Tropical Oceanography, 2024, 43(2): 12-20.

图/表 8

图1

图2

图3

图4

图5

图6

图7

图8

参考文献 28

[1]	ADLER R F, HUFFMAN G J, CHANG A, et al, 2003. The version-2 global precipitation climatology project (GPCP) monthly precipitation analysis (1979-present)[J]. Journal of Hydrometeorology, 4(6): 1147-1167. doi: 10.1175/1525-7541(2003)004<1147:TVGPCP>2.0.CO;2
[2]	ANNAMALAI H, LIU PING, XIE SHANG-PING, 2005. Southwest Indian Ocean SST variability: its local effect and remote influence on Asian monsoons[J]. Journal of Climate, 18(20): 4150-4167. doi: 10.1175/JCLI3533.1
[3]	CHEN LIN, LI GEN, 2022. Interdecadal change in the relationship between El Niño in the decaying stage and the central China summer precipitation[J]. Climate Dynamics, 59: 1981-1996. doi: 10.1007/s00382-022-06192-6
[4]	CHEN ZESHENG, DU YAN, WEN ZHIPING, et al, 2019. Evolution of south tropical Indian Ocean warming and the climatic impacts following strong El Niño events[J]. Journal of Climate, 32(21): 7329-7347. doi: 10.1175/JCLI-D-18-0704.1
[5]	CHEN ZESHENG, LI ZHENMING, DU YAN, et al, 2021. Trans-basin influence of southwest tropical Indian Ocean warming during early boreal summer[J]. Journal of Climate, 34: 9679-9691.
[6]	CHIANG J C H, SOBEL A H, 2002. Tropical tropospheric temperature variations caused by ENSO and their influence on the remote tropical climate[J]. Journal of Climate, 15(18): 2616-2631. doi: 10.1175/1520-0442(2002)015<2616:TTTVCB>2.0.CO;2
[7]	CHOWDARY J S, GNANASEELAN C, 2007. Basin-wide warming of the Indian Ocean during El Niño and Indian Ocean dipole years[J]. International Journal of Climatology, 27(11): 1421-1438. doi: 10.1002/joc.v27:11
[8]	GENT P R, DANABASOGLU G L, DONNER J, et al, 2011. The Community climate system model version 4[J]. Journal of Climate, 24: 4973-4991. doi: 10.1175/2011JCLI4083.1
[9]	GILL A E, 1980. Some simple solutions for heat-induced tropical circulation[J]. Quarterly Journal of the Royal Meteorological Society, 106(449): 447-462.
[10]	HERSBACH H, BELL B, BERRISFORD P, et al, 2020. The ERA5 global reanalysis[J]. Quarterly Journal of the Royal Meteorological Society, 146(730): 1999-2049. doi: 10.1002/qj.v146.730
[11]	HUANG BOHUA, KINTER J L, 2002. Interannual variability in the tropical Indian Ocean[J]. Journal of Geophysical Research-Oceans, 107(C11): 20-26.
[12]	IZUMO T, MONTÉGUT C B, LUO JINGJIA, et al, 2008. The role of the western Arabian Sea upwelling in Indian monsoon rainfall variability[J]. Journal of Climate, 21(21): 5603-5623. doi: 10.1175/2008JCLI2158.1
[13]	KLEIN S A, SODEN B J, LAU N C, 1999. Remote sea surface temperature variations during ENSO: evidence for a tropical atmospheric bridge[J]. Journal of Climate, 12(4): 917-932. doi: 10.1175/1520-0442(1999)012<0917:RSSTVD>2.0.CO;2
[14]	MATSUNO T, 1966. Quasi-geostrophic motions in the equatorial area[J]. Journal of the Meteorological Society of Japan, 44(1): 25-43.
[15]	REYNOLDS R W, RAYNER N A, SMITH T M, et al, 2002. An improved in situ and satellite SST analysis for climate[J]. Journal of Climate, 15(13): 1609-1625. doi: 10.1175/1520-0442(2002)015<1609:AIISAS>2.0.CO;2
[16]	SAJI N H, GOSWAMI B N, VINAYACHANDRAN P N, et al, 1999. A dipole model in the tropical Indian Ocean[J]. Nature, 401: 360-363.
[17]	SCHOTT F A, XIE SHANG-PING, MCCREARY J P, 2009. Indian Ocean circulation and climate variability[J]. Reviews of Geophysics, 47(1): RG1002.
[18]	TAKAYA Y, ISHIKAWA I, KOBAYASHI C, et al, 2020. Enhanced Meiyu-Baiu rainfall in early summer 2020: aftermath of the 2019 super IOD event[J]. Geophysical Research Letter, 47: e2020GL090671.
[19]	WANG BIN, WU RENGUANG, FU X, 2000. Pacific-East Asian teleconnection: how does ENSO affect East Asian climate?[J] Journal of Climate, 13(9): 1517-153. doi: 10.1175/1520-0442(2000)013<1517:PEATHD>2.0.CO;2
[20]	WATANABE M, KIMOTO M, 2000. Atmosphere-ocean thermal coupling in the North Atlantic: a positive feedback[J]. Quarterly Journal of the Royal Meteorological Society, 126(570): 3343-3369.
[21]	WEBSTER P J, MOORE A M, LOSCHNIGG J P, et al, 1999. Coupled ocean-atmosphere dynamics in the Indian Ocean during 1997-98[J]. Nature, 401: 356-360. doi: 10.1038/43848
[22]	WU BO, LI T, ZHOU TIANJUN, 2010. Relative contributions of the Indian Ocean and local SST anomalies to the maintenance of the western North Pacific anomalous anticyclone during El Niño decaying summer[J]. Journal of Climate, 23: 2974-2986. doi: 10.1175/2010JCLI3300.1
[23]	WU RENGUANG, KIRTMAN B P, KRISHNAMURTHY V, 2008. An asymmetric mode of tropical Indian Ocean rainfall variability in boreal spring[J]. Journal of Geophysical Research-Atmosphere, 113: D05104.
[24]	XIE SHANGPING, ANNAMALAI H, SCHOTT F A, et al, 2002. Structure and mechanisms of South Indian Ocean climate variability[J]. Journal of Climate, 15(8): 864-878. doi: 10.1175/1520-0442(2002)015<0864:SAMOSI>2.0.CO;2
[25]	XIE SHANGPING, HU KAIMING, HAFNER J, et al, 2009. Indian Ocean capacitor effect on Indo-western Pacific climate during the summer following El Niño[J]. Journal of Climate, 22(3): 730-747. doi: 10.1175/2008JCLI2544.1
[26]	XIE SHANGPING, KOSAKA Y, DU Y, et al, 2016. Indo-western Pacific Ocean capacitor and coherent climate anomalies in post-ENSO summer: a review[J]. Advances in Atmospheric Sciences, 33(4): 411-432. doi: 10.1007/s00376-015-5192-6
[27]	YANG JIANLING, LIU QINYU, XIE SHANGPING, et al, 2007. Impact of the Indian Ocean SST basin mode on the Asian summer monsoon[J]. Geophysical Research Letter, 34(2): L02708.
[28]	ZHENG JIAYU, WANG CHUNZAI, 2021. Influences of three oceans on record-breaking rainfall over the Yangtze River Valley in June 2020[J]. Science China-Earth Sciences, 64: 1607-1618. doi: 10.1007/s11430-020-9758-9

基于CESM模式的4至6月热带西南印度洋海表异常增暖对印太气候影响的研究^*

Impacts of the anomalous southwest tropical Indian Ocean SST warming on Indo-Pacific climate from April to June based on the CESM model^*

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

图/表 8

参考文献 28

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	袁钰, 徐海明, 马静, 张彤. AMO对ENSO与初夏西太平洋海洋热浪年际关系的年代际调制作用^*[J]. 热带海洋学报, 2024, 43(5): 1-16.
[2]	李卓, 黎伟标, 张奡褀. 台风登陆前华南地区降水日变化特征分析[J]. 热带海洋学报, 2022, 41(2): 26-37.
[3]	杨云月, 许涛, 罗翠榆, 刘娟, 姜修洋. 典型厄尔尼诺期间台风降水δ¹⁸O变化分析: 以2018年22号台风“山竹”为例[J]. 热带海洋学报, 2020, 39(4): 34-41.
[4]	郑瑞玺, 经志友, 罗士浩. 南海北部反气旋涡旋边缘的次中尺度动力过程分析[J]. 热带海洋学报, 2018, 37(3): 19-25.
[5]	傅圆圆, 程旭华, 张玉红, 严幼芳, 杜岩. 近二十年南海表层海水的盐度淡化及其机制*[J]. 热带海洋学报, 2017, 36(4): 18-24.
[6]	施燕萍, 杜岩, 陈泽生. 西北太平洋大气异常反气旋对海平面高度和海洋表层环流的影响[J]. 热带海洋学报, 2017, 36(4): 10-17.
[7]	吕梁宏, 郑小童. El Niño衰退年印度洋海盆模态对印度夏季季风降水的影响[J]. 热带海洋学报, 2017, 36(2): 1-11.
[8]	隋玉正, 崔林丽, 史军, 李淑娟. 一种多源全球海洋降水资料融合方法[J]. 热带海洋学报, 2016, 35(2): 50-56.
[9]	孙稚权, 项杰, 管玉平. 太平洋沃克环流近几十年来的加强[J]. 热带海洋学报, 2016, 35(2): 19-29.
[10]	杜美芳, 徐海明, 周超. 基于CMIP5资料的热带大洋非均匀增暖及其成因的分析[J]. 热带海洋学报, 2015, 34(3): 1-12.
[11]	谭晶, 王彰贵, 黄荣辉, 陈幸荣, 蔡怡, 黄勇勇. 云南雨季降水异常的热带海温和大气环流异常分析[J]. 热带海洋学报, 2015, 34(2): 15-23.
[12]	李琰, 王庆元, 李欢, 张增健, 宋军, 李响. 前期热带太平洋、印度洋持续性海温异常事件对菲律宾低层大气环流的影响[J]. 热带海洋学报, 2014, 33(1): 36-43.
[13]	徐海明, 张岚, 杜岩. 南印度洋偶极子及其影响研究进展[J]. 热带海洋学报, 2013, 32(1): 1-7.
[14]	翟亮, 张秀芝, 孙即霖, 吕心艳. 2005年5—6月西北太平洋副热带高压位置异常可能原因浅析[J]. 热带海洋学报, 2012, 31(4): 58-65.
[15]	任惠茹,康建成,李卫江,安琰,张建平,王甜甜. 东海黑潮表层盐度分布特征及其影响因素^*[J]. 热带海洋学报, 2011, 30(5): 55-61.

基于CESM模式的4至6月热带西南印度洋海表异常增暖对印太气候影响的研究*

Impacts of the anomalous southwest tropical Indian Ocean SST warming on Indo-Pacific climate from April to June based on the CESM model*

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

图/表 8

参考文献 28

相关文章 15

Metrics

本文评价

推荐阅读 0

基于CESM模式的4至6月热带西南印度洋海表异常增暖对印太气候影响的研究^*

Impacts of the anomalous southwest tropical Indian Ocean SST warming on Indo-Pacific climate from April to June based on the CESM model^*