Simulated Indonesian Throughflow in Makassar Strait across the SODA3 products

作     者：Tengfei Xu Zexun Wei Haifeng Zhao Sheng Guan Shujiang Li Guanlin Wang Fei Teng Yongchui Zhang Jing Wang Tengfei Xu;Zexun Wei;Haifeng Zhao;Sheng Guan;Shujiang Li;Guanlin Wang;Fei Teng;Yongchui Zhang;Jing Wang

作者机构：First Institute of Oceanography/Key Laboratory of Marine Science and Numerical ModelingMinistry of Natural ResourcesQingdao 266061China Laboratory for Regional Oceanography and Numerical ModelingQingdao Marine Science and Technology CenterQingdao 266237China College of Meteorology and OceanographyNational University of Defense TechnologyChangsha 410073China CAS Key Laboratory of Ocean Circulation and WavesCenter for Ocean Mega-ScienceInstitute of OceanologyChinese Academy of ScienceQingdao 266071China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2024年第43卷第1期

页      面：80-98页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：The Fund of Laoshan Laboratory under contract No. LSKJ202202700 the National Natural Science Foundation of China under contract Nos 42076023, 42076024 and 41876027 the Global Change and Air-Sea Interaction Ⅱ Project under contract No.GASI-01-AIP-STwin 

主　　题：Indonesian Throughflow Simple Ocean Data Assimilation(SODA) El Ni?o-Southern Oscillation(ENSO) Indian Ocean Dipole(IOD) data assimilation 

摘      要：The Indonesian Throughflow(ITF), which connects the tropical Pacific and Indian oceans, plays important roles in the inter-ocean water exchange and regional or even global climate variability. The Makassar Strait is the main inflow passage of the ITF, carrying about 77% of the total ITF volume transport. In this study, we analyze the simulated ITF in the Makassar Strait in the Simple Ocean Data Assimilation version 3(SODA3) datasets. A total of nine ensemble members of the SODA3 datasets, of which are driven by different surface forcings and bulk formulas, and with or without data assimilation, are used in this study. The annual mean water transports(i.e.,volume, heat and freshwater) are related to the combination of surface forcing and bulk formula, as well as whether data assimilation is employed. The phases of the seasonal and interannual variability in water transports cross the Makassar Strait, are basically consistent with each other among the SODA3 ensemble members. The interannual variability in Makassar Strait volume and heat transports are significantly correlated with El Ni?oSouthern Oscillation(ENSO) at time lags of-6 to 7 months. There is no statistically significant correlation between the freshwater transport and the ENSO. The Makassar Strait water transports are not significantly correlated with the Indian Ocean Dipole(IOD), which may attribute to model deficiency in simulating the propagation of semiannual Kelvin waves from the Indian Ocean to the Makassar Strait.