Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-18-0036.1 |
On the Seasonal Cycle of the Tropical South Indian Ocean. Part I: Mixed Layer Heat and Salt Budgets | |
Soares, Saulo M.1; Richards, Kelvin J.1,2; Bryan, Frank O.3; Yoneyama, Kunio4 | |
2019-03-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:6页码:1951-1972 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Japan |
英文摘要 | Scale interactions in the coupled ocean and atmosphere of the tropics play a crucial role in shaping the climate state and its spatial and temporal variability. The mechanisms driving the seasonal cycles of mixed layer (ML) temperature and salinity in the tropical south Indian Ocean (TSIO) are revisited and quantified using model and observations to form a basis on which to assess the cycle's impact on shorter and longer time scale variability in the region. Budgets of ML heat for the western, central, and eastern TSIO in both model and observations indicate that seasonality in ML temperature is driven by surface heat fluxes in all regions; ocean processes, however, are essential to explain east-west differences in the cycle. In contrast, the salt budgets show that ML salinity in the west and central regions of the TSIO is driven by horizontal advection, with salinity increasing during austral winter mainly due to meridional advection, and freshening during spring-summer due to zonal advection; in the east, no single mechanism appears to dominate ML salinity seasonality. The ML seasonal cycle across the entire region is very much influenced by the basin-scale adjustment that occurs in response to monsoon winds in the eastern side of the basin. Zonal advection, as part of the adjustment process, is the key mechanism responsible for bringing fresher/colder waters from the east to the central and western TSIO during austral spring, leading to a lag in the coldestMLtemperatures in the east relative to the west/central TSIO, and effectively coupling the eastern and western TSIO beyond simply Rossby wave dynamics. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000473259700004 |
WOS关键词 | SEA-LEVEL ; DYNAMICS ; DIPOLE ; MODEL ; TEMPERATURE ; CLIMATOLOGY ; VARIABILITY ; ADVECTION ; SALINITY ; PACIFIC |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/181548 |
专题 | 气候变化 |
作者单位 | 1.Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Int Pacific Res Ctr, Honolulu, HI 96822 USA; 2.Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Dept Oceanog, Honolulu, HI USA; 3.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 4.Japan Agcy Marine Earth Sci & Technol, Dept Coupled Ocean Atmosphere Land Proc Res, Yokosuka, Kanagawa, Japan |
推荐引用方式 GB/T 7714 | Soares, Saulo M.,Richards, Kelvin J.,Bryan, Frank O.,et al. On the Seasonal Cycle of the Tropical South Indian Ocean. Part I: Mixed Layer Heat and Salt Budgets[J]. JOURNAL OF CLIMATE,2019,32(6):1951-1972. |
APA | Soares, Saulo M.,Richards, Kelvin J.,Bryan, Frank O.,&Yoneyama, Kunio.(2019).On the Seasonal Cycle of the Tropical South Indian Ocean. Part I: Mixed Layer Heat and Salt Budgets.JOURNAL OF CLIMATE,32(6),1951-1972. |
MLA | Soares, Saulo M.,et al."On the Seasonal Cycle of the Tropical South Indian Ocean. Part I: Mixed Layer Heat and Salt Budgets".JOURNAL OF CLIMATE 32.6(2019):1951-1972. |
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