Rapid Sea Level Rise in the Southern Hemisphere Subtropical Oceans
文献类型：期刊论文
| 作者 | Duan, Jing2,4,5; Li, Yuanlong2,4,5; Wang, Fan2,4,5 ; Hu, Aixue3; Han, Weiqing1; Zhang, Lei1; Lin, Pengfei6; Rosenbloom, Nan3; Meehl, Gerald A.3
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| 刊名 | JOURNAL OF CLIMATE
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| 出版日期 | 2021-12-01 |
| 卷号 | 34期号:23页码:9401-9423 |
| ISSN号 | 0894-8755 |
| 关键词 | Ocean Indian Ocean Dynamics Sea level |
| DOI | 10.1175/JCLI-D-21-0248.1 |
| 通讯作者 | Li, Yuanlong(liyuanlong@qdio.ac.cn) |
| 英文摘要 | The subtropical oceans between 35 degrees and 20 degrees S in the Southern Hemisphere (SH) have exhibited prevailingly rapid sea level rise (SLR) rates since the mid-twentieth century, amplifying damages of coastal hazards and exerting increasing threats to South America, Africa, and Australia. Yet, mechanisms of the observed SLR have not been firmly established, and its representation in climate models has not been examined. By analyzing observational sea level estimates, ocean reanalysis products, and ocean model hindcasts, we show that the steric SLR of the SH subtropical oceans between 35 degrees and 20 degrees S is faster than the global mean rate by 18.2% +/- 9.9% during 1958-2014. However, present climate models-the fundamental bases for future climate projections-generally fail to reproduce this feature. Further analysis suggests that the rapid SLR in the SH subtropical oceans is primarily attributable to the persistent upward trend of the southern annular mode (SAM). Physically, this trend in SAM leads to the strengthening of the SH subtropical highs, with the strongest signatures observed in the southern Indian Ocean. These changes in atmospheric circulation promote regional SLR in the SH subtropics by driving upper-ocean convergence. Climate models show systematic biases in the simulated structure and trend magnitude of SAM and significantly underestimate the enhancement of subtropical highs. These biases lead to the inability of models to correctly simulate the observed subtropical SLR. This work highlights the paramount necessity of reducing model biases to provide reliable regional sea level projections. |
| 资助项目 | National Key R&D Program of China[2019YFA0606702] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB42000000] ; Strategic Priority Research Program of Chinese Academy of Sciences[40000000] ; Shandong Provincial Natural Science Foundation[ZR2020JQ17] ; Key Deployment Project of CAS Centre for Ocean Mega-Science[COMS2019Q07] ; Regional and Global Model Analysis (RGMA) component of the Earth and Environmental System Modeling Program of the U.S. Department of Energy's Office of Biological and Environmental Research (BER) via National Science Foundation[IA 1947282] ; National Center for Atmospheric Research (NCAR) - NSF[1852977] ; NSF[AGS 1935279] |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | AMER METEOROLOGICAL SOC |
| WOS记录号 | WOS:000752649500012 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/177984]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Li, Yuanlong |
| 作者单位 | 1.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA 2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China 3.Natl Ctr Atmospher Res, Climate & Global Dynam Lab, POB 3000, Boulder, CO 80307 USA 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 6.Chinese Acad Sci, Inst Atmospher Phys, LASG, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, Jing,Li, Yuanlong,Wang, Fan,et al. Rapid Sea Level Rise in the Southern Hemisphere Subtropical Oceans[J]. JOURNAL OF CLIMATE,2021,34(23):9401-9423. |
| APA | Duan, Jing.,Li, Yuanlong.,Wang, Fan.,Hu, Aixue.,Han, Weiqing.,...&Meehl, Gerald A..(2021).Rapid Sea Level Rise in the Southern Hemisphere Subtropical Oceans.JOURNAL OF CLIMATE,34(23),9401-9423. |
| MLA | Duan, Jing,et al."Rapid Sea Level Rise in the Southern Hemisphere Subtropical Oceans".JOURNAL OF CLIMATE 34.23(2021):9401-9423. |
入库方式： OAI收割
来源：海洋研究所
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