Water sources of the Lombok, Ombai and Timor outflows of the Indonesian throughflow

The Lombok Strait (LS), Ombai Strait (OS), and Timor Passage (TP) are three major outlets of the Indonesian Throughflow to the Indian Ocean. Here, sources and pathways of the LS, OS, and TP outflows are explored by a Lagrangian particle tracking analysis based on a similar to 3 km regional ocean mod...

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Bibliographic Details
Published in:Frontiers in Marine Science
Main Authors: Guo, Yaru, Li, Yuanlong, Yang, Dezhou, Li, Yuxuan, Wang, Fan, Gao, Guandong
Format: Report
Language:English
Published: FRONTIERS MEDIA SA 2023
Subjects:
the Indonesian throughflow
Indonesian seas
lagrangian particle tracking
Makassar strait
Lifamatola passage
Environmental Sciences & Ecology
Marine & Freshwater Biology
Environmental Sciences
WESTERN BOUNDARY CURRENT
OCEAN CIRCULATION
MODELING SYSTEM
NORTH-ATLANTIC
INDIAN OCEANS
MALUKU SEA
PACIFIC
VARIABILITY
CLIMATE
TRANSPORT
North Atlantic
Online Access:http://ir.qdio.ac.cn/handle/337002/183621
https://doi.org/10.3389/fmars.2023.1326048
Description
Summary:The Lombok Strait (LS), Ombai Strait (OS), and Timor Passage (TP) are three major outlets of the Indonesian Throughflow to the Indian Ocean. Here, sources and pathways of the LS, OS, and TP outflows are explored by a Lagrangian particle tracking analysis based on a similar to 3 km regional ocean model simulation. The Makassar Strait transport contributes to similar to 80%, similar to 75%, and similar to 45% of the LS, OS, and TP outflows, respectively. However, similar to 41% and similar to 19% of the TP and OS outflows stem from the Lifamatola Passage, which largely feeds the upper and intermediate layers of the outflows. The role of Karimata Strait is quite limited and restricted to the upper layer. It takes 1-2 years and 2-6 years for the Makassar Strait water to reach the OS and TP, respectively, whereas the Lifamatola Passage water passes through the OS (2-6 years) and TP (3-9 years) on a prolonged transit time. In the Banda Sea, the western boundary current is the main pathway toward the OS, while the waters to the TP tend to take a basin interior route.

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