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

该项目的目标是分析在“TRIUMPH”（通过流动的印度尼西亚海洋、上升流和混合物理）海洋实地项目期间从印度尼西亚通流（ITF）地区采集的海洋数据，该项目是由印度尼西亚和中国的研究人员合作开展的。自2019年秋季以来，TRIUMPH已在主要的直接ITF通道和爪哇南部上升流地区部署了7个系泊设施。该项目将研究：在潮汐、季节内和季节时间尺度上，望加锡、龙目岛和阿拉斯海峡ITF运输变率及其相关的热量和淡水通量的全面深度；潮汐混合变率；以及热带印度洋-望加锡海峡开尔文波的传播。印尼通流（ITF）是低纬度太平洋海水流入印度洋的重要通道。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。尽管在过去三十年中对ITF进行了测量，但没有对整个深度变异性进行详细测量，也没有研究它对热带印度洋东部混合和上升流的影响。这种数据的缺失代表了我们对这个浅阻塞点在调节太平洋-印度洋交换、海气相互作用和浅层经向海洋环流阻塞点的水质量转化方面的作用的理解存在重大差距。因此，有必要同时对ITF、混合和上升流进行详细的测量。该奖项反映了美国国家科学基金会的法定使命，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。

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.