Numerical Simulations to Project Argo Float Positions in the Middepth and Deep Southwest Pacific
Numerical Simulations to Project Argo Float Positions in the Middepth and Deep Southwest Pacific
复制标题
西南太平洋中深和深海 Argo 浮标位置的数值模拟
DOI:
10.1175/jtech-d-17-0214.1
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发表时间:
2018
影响因子:
2.2
通讯作者:
Du, Yan
中科院分区:
文献类型:
--
作者:
Wang, Tianyu;Gille, Sarah T.;Mazloff, Matthew R.;Zilberman, Nathalie V.;Du, Yan
Argo float trajectories are simulated in the southwest Pacific basin (25°–45°S, 170°E–165°W) using velocity fields from a 1/12° 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 ~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.
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DOI:
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发表时间:
1981
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影响因子:
--
作者:
B. Warren
通讯作者:
B. Warren
DOI:
--
发表时间:
2016
期刊:
影响因子:
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作者:
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影响因子:
0.5
作者:
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通讯作者:
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DOI:
10.1002/2017jc013363
发表时间:
2018-01
期刊:
Journal of geophysical research. Oceans
影响因子:
--
作者:
McAdam R;van Sebille E
通讯作者:
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影响因子:
3.5
作者:
S. Gille
通讯作者:
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