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Observations and Analysis Throughflow Indonesian Seas, Upwelling, and Mixing Physics (TRIUMPH) Data

印度尼西亚海域通流、上升流和混合物理 (TRIUMPH) 数据的观测和分析

基本信息

批准号：
2242151
负责人：
Raden Susanto
金额：
$ 73.66万
依托单位：
University of Maryland, College Park
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2023
资助国家：
美国
起止时间：
2023-04-15 至 2026-03-31
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2242151&HistoricalAwards=false
关键词：
Observations Analysis Throughflow Indonesian Seas

项目摘要

The goal of this project is to analyze oceanographic data from the Indonesian Through Flow (ITF) region taken during the TRIUMPH (ThRoughflow Indonesian seas, Upwelling, and Mixing PHysics) oceanographic field program, a collaboration with researchers from Indonesia and China. TRIUMPH has deployed seven moorings in the main direct ITF pathways and the upwelling region of south Java since Fall 2019. The project will examine: the full-depth of ITF transport variability and its associated heat and freshwater fluxes in the Makassar, Lombok, and Alas Straits on tidal, intraseasonal, and seasonal timescales; tidal mixing variability; and, propagation of Kelvin waves from the tropical Indian Ocean-Makassar Strait.The Indonesian Through Flow (ITF) is an essential conduit for the flow of low latitude Pacific Ocean waters into the Indian Ocean. Its variability is particularly significant because it plays a vital role in global ocean circulation and climate. Even though ITF has been measured the last three decades, no detailed measurements of full depth variability have been done nor has its impacts on mixing and upwelling along the eastern tropical Indian Ocean been investigated. This absence of data represents a significant gap in our understanding of the role of this shallow choke point in regulating the Pacific-Indian Ocean exchange, air-sea interactions, and water-mass transformation in the chokepoint of the shallow Meridional Ocean Circulation. Hence, it is essential to have detailed simultaneous measurements of the ITF, mixing, and upwelling.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该项目的目标是分析来自印度尼西亚通流（ITF）区域的海洋学数据，该数据是在与印度尼西亚和中国的研究人员合作的TRIUMPH（Throughflow Indonesia seas，Upwelling，and Mixing Physics）海洋学现场计划期间获得的。自2019年秋季以来，TRIUMPH已在ITF的主要直接路径和爪哇南部的上升流区域部署了七个系泊系统。该项目将审查：ITF输送变率及其相关的热量和淡水通量在马卡萨尔，龙目岛和阿拉斯海峡的潮汐，季节内和季节时间尺度的全深度;潮汐混合变率;和，从热带印度洋-马卡萨尔海峡开尔文波的传播。印度尼西亚通流（ITF）是低纬度太平洋沃茨流入印度洋的重要管道。它的变化特别重要，因为它在全球海洋环流和气候中起着至关重要的作用。即使ITF已经测量了过去的三十年，没有详细的测量的全深度的变化已经完成，也没有它的混合和上升流沿着东热带印度洋的影响进行了调查。这种数据的缺乏是一个显着的差距，在我们的理解，这浅阻塞点在调节太平洋-印度洋交换，海气相互作用，和水团的转变在阻塞点的浅经向海洋环流的作用。因此，对ITF、混合和上升流进行详细的同步测量是至关重要的。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。