Origin, pathway, and fate of Equatorial 13C Water in the Pacific

该项目将对赤道13摄氏度的水进行彻底、系统的研究。他们将首先利用所有可用的水文和示踪数据，结合高分辨率GCM的结果，对水团的来源、路径和命运进行全面描述。然后，他们将利用模拟的被动示踪和伴随技术，研究其环流的时间(中尺度到十年)变异性以及可能对赤道温跃层和海面温度的影响。他们的具体目标是确定这一水团的南北来源、内部和西部边界路径，以及平均和随时间变化的环流。广泛的影响：该项目将(I)在促进教育的同时促进科学(通过培训一名博士后研究员分析观测数据和模型输出)；(Ii)通过建立学科之间和机构之间的合作，加强研究和教育的基础设施；(Iii)利用高质量的世界海洋环流实验数据和高分辨率大气环流模型的结果来评估气候变化，使社会受益。

This project will conduct a thorough, systematic study of Equatorial 13 degC Water. They will first develop a comprehensive description of the origin, pathway, and fate of the water mass using all available hydrographic and tracer data combined with results from high-resolution GCMs. They will then examine the temporal (mesoscale to decadal) variability of its circulation and possible influence on the equatorial thermocline and sea surface temperature using a simulated passive tracer and adjoint technique. Their specific goal is to identify the northern versus southern origin, interior versus western boundary pathway, and mean versus time-dependent circulation of this water mass.Broader Impacts:This project will (i) advance science while promoting education (by the training of a postdoctoral fellow in the analysis of observational data and model outputs); (ii) enhance infrastructure for research and education by establishing collaborations between disciplines and between institutions; and (iii) benefit the society by the use of high-quality World Ocean Circulation Experiment data and results from high-resolution general circulation models to assess climate change.