A daily global mesoscale ocean eddy dataset from satellite altimetry.

A daily global mesoscale ocean eddy dataset from satellite altimetry.
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DOI:
10.1038/sdata.2015.28
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发表时间:
2015
期刊:
影响因子:
9.8
通讯作者:
Kumar, Vipin
Kumar, Vipin
中科院分区:
综合性期刊2区
文献类型:
--
作者:
Faghmous, James H.;Frenger, Ivy;Yao, Yuanshun;Warmka, Robert;Lindell, Aron;Kumar, Vipin

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中尺度海洋涡旋是一种普遍存在的径向尺度在100公里量级的相干旋转结构。涡旋在整个世界海洋的动量和示踪剂的输送和混合中起着关键作用。我们提出了一个全球每日中尺度海洋涡流数据集,其中包含约4500万中尺度特征和330万涡流轨迹,这些特征和轨迹在1993-2014年期间的AVISO数据集中至少持续两天。该数据集,沿着开源涡流识别软件,提取具有任何参数(最小尺寸,寿命等)的涡流,研究全球涡旋特性和动力学,并根据经验估计涡旋对质量或热量输送的影响。此外,我们的开源软件可用于识别模型模拟中的中尺度特征,并将其与观测到的特征进行比较。最后,该数据集可用于研究中尺度海洋涡旋与地球系统其他组成部分之间的相互作用。
Mesoscale ocean eddies are ubiquitous coherent rotating structures of water with radial scales on the order of 100 kilometers. Eddies play a key role in the transport and mixing of momentum and tracers across the World Ocean. We present a global daily mesoscale ocean eddy dataset that contains ~45 million mesoscale features and 3.3 million eddy trajectories that persist at least two days as identified in the AVISO dataset over a period of 1993–2014. This dataset, along with the open-source eddy identification software, extract eddies with any parameters (minimum size, lifetime, etc.), to study global eddy properties and dynamics, and to empirically estimate the impact eddies have on mass or heat transport. Furthermore, our open-source software may be used to identify mesoscale features in model simulations and compare them to observed features. Finally, this dataset can be used to study the interaction between mesoscale ocean eddies and other components of the Earth System.
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