优化生物地球化学Argo浮体分布

IF 1.9 4区 地球科学 Q2 ENGINEERING, OCEAN Journal of Atmospheric and Oceanic Technology Pub Date : 2023-07-12 DOI:10.1175/jtech-d-22-0093.1
P. Chamberlain, L. Talley, B. Cornuelle, M. Mazloff, S. Gille
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引用次数: 0

摘要

核心Argo阵列以经纬度均匀分布3°的设计目标运行。最近的研究已经认识到,海洋某些部分的时空变率不能通过3°采样来解决,并建议在综合考虑其他Argo变异体的情况下,增加赤道地区、边界流和边缘海的核心Argo密度。生物地球化学(BGC) Argo浮标目前通过一系列试点阵列观察海洋,但最近资助的提案将把这些试点阵列转变为全球阵列。目前的BGC Argo实施计划建议BGC Argo浮子的均匀空间分布。我们首次估计了现有BGC Argo阵列使用模拟的全深度BGC油田子集从平均值中解决异常的有效性。我们还研究了不同浮子密度的均匀分布BGC Argo阵列在海洋观测中的有效性。然后,利用以前的Argo轨迹,我们估计了Argo阵列未来的分布,并量化了它对海洋的观察程度。最后,利用一种新的顺序识别最佳部署位置的技术,我们提出了BGC Argo浮标的最佳阵列分布,以最大限度地减少BGC字段子集的客观映射不确定性,并最好地约束BGC的时间变异性。
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Optimizing The Biogeochemical Argo Float Distribution
The core Argo array has operated with the design goal of uniform spatial distribution of 3° in latitude and longitude. Recent studies have acknowledged that spatial and temporal scales of variability in some parts of the ocean are not resolved by 3° sampling and have recommended increased core Argo density in the equatorial region, boundary currents, and marginal seas with an integrated vision of other Argo variants. Biogeochemical (BGC) Argo floats currently observe the ocean from a collection of pilot arrays, but recently funded proposals will transition these pilot arrays to a global array. The current BGC Argo implementation plan recommends uniform spatial distribution of BGC Argo floats. For the first time, we estimate the effectiveness of the existing BGC Argo array to resolve the anomaly from the mean using a subset of modeled, full-depth BGC fields. We also study the effectiveness of uniformly-distributed BGC Argo arrays with varying float densities at observing the ocean. Then, using previous Argo trajectories, we estimate the Argo array’s future distribution and quantify how well it observes the ocean. Finally, using a novel technique for sequentially identifying the best deployment locations, we suggest the optimal array distribution for BGC Argo floats to minimize objective mapping uncertainty in a subset of BGC fields and to best constrain BGC temporal variability.
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来源期刊
CiteScore
4.50
自引率
9.10%
发文量
135
审稿时长
3 months
期刊介绍: The Journal of Atmospheric and Oceanic Technology (JTECH) publishes research describing instrumentation and methods used in atmospheric and oceanic research, including remote sensing instruments; measurements, validation, and data analysis techniques from satellites, aircraft, balloons, and surface-based platforms; in situ instruments, measurements, and methods for data acquisition, analysis, and interpretation and assimilation in numerical models; and information systems and algorithms.
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