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

该项目的目标是分析在凯旋(Throughflow印度尼西亚海、上升流和混合物理)海洋场计划期间从印尼直通流地区获得的海洋数据，该计划是与印度尼西亚和中国的研究人员合作的。自2019年秋季以来，Triumph已在ITF的主要直接航道和南爪哇上升流地区部署了七个系泊设施。该项目将研究：在马卡萨尔、龙目岛和阿拉斯海峡潮汐、季节内和季节时间尺度上ITF输送变率的全深度及其相关的热量和淡水通量；潮汐混合变率；以及来自热带印度洋-马卡萨尔海峡的开尔文波的传播。印尼直通流(ITF)是低纬太平洋水域流入印度洋的重要管道。它的变异性特别重要，因为它在全球海洋环流和气候中发挥着至关重要的作用。尽管在过去三十年中测量了ITF，但没有对全深度变化进行详细测量，也没有调查其对沿热带印度洋东部的混合和上升流的影响。这种数据的缺乏表明，我们对这一浅层阻塞点在调节太平洋-印度洋交换、海-气相互作用以及浅层子午线环流阻塞区的水团转换方面的作用的理解存在很大差距。因此，对ITF、混合和上升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智力优势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.