文献类型：期刊文献

英文题名：Seasonal and interannual variability of water mass sources of Indonesian throughflow in the Maluku Sea and the Halmahera Sea

作者：Wang, Lu[1,2];Zhou, Lei[3,4];Xie, Lingling[1];Zheng, Quanan[5];Li, Qiang[1];Li, Mingming[1]

机构：[1]Guangdong Ocean Univ, Guangdong Key Lab Coastal Ocean Variabil & Disast, Zhanjiang 524088, Peoples R China;[2]PLA Navy Petty Officer Acad, Dept Nav, Bengbu 233012, Peoples R China;[3]Shanghai Jiao Tong Univ, Sch Oceanog, Shanghai 200240, Peoples R China;[4]Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Reg Oceanog & Numer Modeling, Qingdao 266237, Shandong, Peoples R China;[5]Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20742 USA

年份：2019

卷号：38

期号：4

起止页码：58

外文期刊名：ACTA OCEANOLOGICA SINICA

收录：SCI-EXPANDED(收录号：WOS:000465374700007)、、Scopus(收录号：2-s2.0-85064735593)、WOS

基金：The GASI Project under contract Nos GASI-IPOVAI-01-02 and GASI-02-SCS-YGST2-02; the National Natural Science Foundation of China under contract Nos 41776034 and 41706025; the Foundation of Guangdong Province for Outstanding Young Teachers in University under contract No. YQ201588.

语种：英文

外文关键词：water mass; Indonesian throughflow; monsoon; ENSO; Maluku Sea; Halmahera Sea

外文摘要：So far, large uncertainties of the Indonesian throughflow (ITF) reside in the eastern Indonesian seas, such as the Maluku Sea and the Halmahera Sea. In this study, the water sources of the Maluku Sea and the Halmahera Sea are diagnosed at seasonal and interannual timescales and at different vertical layers, using the state-of-the-art simulations of the Ocean General Circulation Model (OGCM) for Earth Simulator (OFES). Asian monsoon leaves clear seasonal footprints on the eastern Indonesian seas. Consequently, the subsurface waters (around 24.5 sigma and at similar to 150 m) in both the Maluku Sea and the Halmahera Sea stem from the South Pacific (SP) during winter monsoon, but during summer monsoon the Maluku Sea is from the North Pacific (NP), and the Halmahera Sea is a mixture of waters originating from the NP and the SP. The monsoon impact decreases with depth, so that in the Maluku Sea, the intermediate water (around 26.8 sigma and at similar to 480 m) is always from the northern Banda Sea and the Halmahera Sea water is mainly from the SP in winter and the Banda Sea in summer. The deep waters (around 27.2 sigma and at similar to 1 040 m) in both seas are from the SP, with weak seasonal variability. At the interannual timescale, the subsurface water in the Maluku Sea originates from the NP/SP during El Nino/La Nina, while the subsurface water in the Halmahera Sea always originates from the SP. Similar to the seasonal variability, the intermediate water in Maluku Sea mainly comes from the Banda Sea and the Halmahera Sea always originates from the SP. The deep waters in both seas are from the SP. Our findings are helpful for drawing a comprehensive picture of the water properties in the Indonesian seas and will contribute to a better understanding of the ocean-atmosphere interaction over the maritime continent.