Numerical Simulations to Project Argo Float Positions in the Middepth and Deep Southwest Pacific
Wang, TY; Gille, ST; Mazloff, MR; Zilberman, NV; Du, Y; sgille@ucsd.edu
2018
发表期刊JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
卷号35期号:7页码:1425-1440
摘要Argo float trajectories are simulated in the southwest Pacific basin (25 degrees-45 degrees S, 170 degrees E-165 degrees W) using velocity fields from a 1/12 degrees Southern Ocean model and a Lagrangian particle tracking model programmed to represent the vertical motions of profiling Argo floats. The system is applied to simulate both core Argo floats (typically parked at 1000-m depth and profiling to 2000-m depth) and Deep Argo floats (parked 500 m above the seafloor). The goal is to estimate probability density functions (PDFs) predicting future float positions. Differences are expected in the trajectory statistics, largely because of limitations in the temporal and spatial resolution of the model fields and uncertainties associated with a random walk component included in the particle advection scheme to represent this unresolved variability. Nonetheless, the core Argo float displacements over similar to 100-day time intervals are mostly consistent with the derived PDFs, particularly in regions with stable midlayer flows. For the Deep Argo floats, which are released into the open ocean and parked near the bottom, the simulations predict an average total displacement of less than 50 km within 100 days, in good agreement with the Deep Argo floats deployed as part of a pilot study. The study explores both the representativeness and the predictability of float displacements, with an aim to contribute to planning for the float observing system.
部门归属[Wang, Tianyu; Du, Yan] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China; [Wang, Tianyu; Du, Yan] Univ Chinese Acad Sci, Beijing, Peoples R China; [Wang, Tianyu; Gille, Sarah T.; Mazloff, Matthew R.; Zilberman, Nathalie V.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA
关键词Profilers Oceanic Model Output Statistics Ocean Models
学科领域Engineering ; Meteorology & Atmospheric Sciences
资助项目LTO
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/17059
专题热带海洋环境国家重点实验室(LTO)
通讯作者sgille@ucsd.edu
推荐引用方式
GB/T 7714
Wang, TY,Gille, ST,Mazloff, MR,et al. Numerical Simulations to Project Argo Float Positions in the Middepth and Deep Southwest Pacific[J]. JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY,2018,35(7):1425-1440.
APA Wang, TY,Gille, ST,Mazloff, MR,Zilberman, NV,Du, Y,&sgille@ucsd.edu.(2018).Numerical Simulations to Project Argo Float Positions in the Middepth and Deep Southwest Pacific.JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY,35(7),1425-1440.
MLA Wang, TY,et al."Numerical Simulations to Project Argo Float Positions in the Middepth and Deep Southwest Pacific".JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY 35.7(2018):1425-1440.
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