Seasonal sea surface temperature variability in the northwestern Indian ocean
文献类型：期刊论文
| 作者 | Pan, Hongxuan4,5,6; Liu, Hongwei3,4,5; Duan, Yongliang1,2,7; Pang, Chongguang3,4,5 |
| 刊名 | DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
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| 出版日期 | 2026-02-01 |
| 卷号 | 227页码:11 |
| 关键词 | Somali upwelling Sea surface temperature Heat budget Air-sea interaction |
| ISSN号 | 0967-0637 |
| DOI | 10.1016/j.dsr.2025.104641 |
| 通讯作者 | Liu, Hongwei(liuhongwei@qdio.ac.cn) |
| 英文摘要 | This study investigates the seasonal variability and underlying mechanisms of sea surface temperature (SST) in the Somali upwelling region of the northwestern tropical Indian Ocean (TIO), based on high-resolution ocean reanalysis and observational datasets. Motivated by the distinct bimodal SST cycle in this region - featuring two warming (spring and autumn) and two cooling (summer and winter) periods - we conduct a detailed mixed-layer heat budget analysis to quantify the relative contributions of atmospheric forcing and oceanic processes. While net surface heat flux (NSHF) dominates both warming phases, the underlying mechanisms differ significantly. For spring warming, it is primarily driven by increased shortwave radiation and weakened winds. In contrast, autumn warming - despite stronger NSHF - is partially offset by vertical entrainment and horizontal advection. For the cooling phases, summer SST decline is driven by dynamic oceanic processes such as vertical entrainment and horizontal advection under the southwest monsoon, while winter cooling is controlled mainly by enhanced latent heat loss. Compared to the Java upwelling region, which displays a weaker unimodal SST pattern, the Somali system exhibits more complex monsoon-ocean interactions. While earlier basin-scale modeling studies have identified general seasonal controls in the northern Indian Ocean, our region-specific, observation-constrained analysis uncovers pronounced asymmetries between distinct warming and cooling phases. These findings emphasize the critical role of monsoon-driven, phase-dependent air-sea interactions in shaping the seasonal SST variability in the northwestern TIO. |
| WOS关键词 | WESTERN NORTH PACIFIC ; HEAT-BALANCE ; INTERANNUAL VARIABILITY ; SUMMER MONSOON ; ARABIAN SEA ; PART I ; JAVA ; DYNAMICS ; BUDGET ; BAY |
| 资助项目 | National Key R&D Program of China[2023YFC2810500] ; National Key R&D Program of China[LSKJ202201703] |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001641143500001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/204466]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Liu, Hongwei |
| 作者单位 | 1.Minist Nat Resources, Key Lab Marine Sci & Numer Modeling, Qingdao 266061, Peoples R China 2.Shandong Key Lab Marine Sci & Numer Modeling, Qingdao 266061, Peoples R China 3.Qingdao Marine Sci & Technol Ctr, Lab Ocean Dynam & Climate, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Observat & Forecasting, Qingdao 266071, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 6.Univ Chinese Acad Sci, Coll Marine Sci, Beijing, Peoples R China 7.Minist Nat Resources, Inst Oceanog 1, Qingdao 266061, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pan, Hongxuan,Liu, Hongwei,Duan, Yongliang,et al. Seasonal sea surface temperature variability in the northwestern Indian ocean[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2026,227:11. |
| APA | Pan, Hongxuan,Liu, Hongwei,Duan, Yongliang,&Pang, Chongguang.(2026).Seasonal sea surface temperature variability in the northwestern Indian ocean.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,227,11. |
| MLA | Pan, Hongxuan,et al."Seasonal sea surface temperature variability in the northwestern Indian ocean".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 227(2026):11. |
入库方式： OAI收割
来源：海洋研究所
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