TOEddies Global Mesoscale Eddy Atlas Colocated with Argo Float Profiles

This dataset contains mesoscale eddies from the Ocean Eddy Detection and Tracking Algorithms (TOEddies) Atlas colocated with Argo profiling floats. Applied to daily gridded maps of satellite Absolute Dynamic Topography, TOEddies provides information on eddy dynamical characteristics (e.g., size and intensity) over a 30+ year period (1993–2023) and identifies complex eddy-eddy interactions that lead to eddy splitting and merging. Furthermore, these eddies are combined with 23 years of Argo profile co-located measurements (2000–2023), enabling investigation into the signature of eddies and their impact in the ocean interior. This dataset contains eddies detected across the entire geographical area covered by altimetric maps. Special caution is advised for studies focusing on eddies near the equator, where geostrophic balance breaks down, and at high latitudes, where the small Rossby radius limits detection capabilities in 1/4° altimetric fields.
TOEddies, based on the method proposed and developed by Chaigneau et al. (2008, 2011) and Pegliasco et al. (2018), was first presented in Laxenaire et al. (2018) when applied to the South Atlantic Ocean. To date, approximately 20 peer-reviewed publications have employed the TOEddies algorithm (see Ioannou et al., Preprint 2024 for a recent list of some of them). Notably, mesoscale eddies from TOEddies, following Chaigneau et al. (2011), have been colocated with Argo floats, facilitating, for example, the identification of the transition from surface to subsurface intensified eddies (Laxenaire et al., 2019), the estimation of heat transport by eddies (Laxenaire et al., 2020), and the study of the impact of mesoscale eddies on Deep Chlorophyll Maxima with BGC Argo floats (Cornec et al., 2021).
The V1 version of this dataset is described in detail in the appendix of Ioannou et al. (Preprint 2024) and compared to other eddy detection datasets in the core text of Ioannou et al. (Preprint 2024).
Input Fields =>
Satellite Altimetry: Daily all-satellite sea surface height fields produced by Copernicus Marine Service (https://marine.copernicus.eu/fr). This multi-satellite product integrates data from all available satellites at a given time and is projected onto a fixed grid with a resolution of 0.25°, covering the global ocean (version: cmems_obs-sl_glo_phy-ssh_my_allsat-l4-duacs-0.25deg_P1D, DOI:10.48670/moi-00148).
Argo Floats: Argo float profile data and positions were retrieved from the Ifremer FTP (Argo, 2024; DOI:10.17882/42182).
See Detection eddies repository for technical guidance on this dataset.

本数据集收录了与Argo剖面浮标（Argo profiling floats）同位匹配的海洋涡旋探测与追踪算法（Ocean Eddy Detection and Tracking Algorithms，TOEddies）图集所涵盖的中尺度涡旋。TOEddies算法针对卫星绝对动力地形的逐日网格化地图开展处理，可提供1993—2023年这30余年时间跨度内涡旋的动力学特征（如尺度与强度）信息，并能识别引发涡旋分裂与合并的复杂涡旋间相互作用过程。此外，该类涡旋与2000—2023年共计23年的Argo剖面同位观测数据相结合，可为涡旋信号特征及其对海洋内部的影响研究提供支撑。本数据集覆盖了卫星测高地图所涵盖的全部地理区域。针对赤道附近（地转平衡失效区域）及高纬度地区（小罗斯比半径限制了1/4°分辨率测高场的涡旋探测能力）的涡旋相关研究，需格外谨慎。
TOEddies算法基于Chaigneau等人（2008、2011）及Pegliasco等人（2018）提出并开发的方法，最早由Laxenaire等人（2018）应用于南大西洋海域并首次发布。截至目前，已有约20篇同行评议论文采用了TOEddies算法（详见Ioannou等人2024年预印本中的相关文献列表）。值得注意的是，遵循Chaigneau等人（2011）的方法，TOEddies产出的中尺度涡旋已与Argo浮标实现同位匹配，例如助力识别从表层向次表层强化涡旋的过渡过程（Laxenaire等，2019）、估算涡旋引发的热输送量（Laxenaire等，2020），以及借助生物地球化学Argo浮标（BGC Argo floats）研究中尺度涡旋对深层叶绿素最大值的影响（Cornec等，2021）。
本数据集的V1版本详细说明见于Ioannou等人（2024年预印本）的附录，并在该预印本的正文部分与其他涡旋探测数据集开展了对比分析。
输入字段 =>
卫星测高数据：由哥白尼海洋环境监测服务中心（Copernicus Marine Service，https://marine.copernicus.eu/fr）生成的逐日多卫星海面高度场。该多卫星产品整合了任意时刻所有可用卫星的观测数据，投影至分辨率为0.25°的固定网格，覆盖全球海洋（版本号：cmems_obs-sl_glo_phy-ssh_my_allsat-l4-duacs-0.25deg_P1D，DOI：10.48670/moi-00148）。
Argo浮标数据：Argo浮标剖面数据及位置信息从法国海洋开发研究院（Ifremer）的FTP服务器获取（Argo，2024；DOI：10.17882/42182）。
有关本数据集的技术指南，请参阅涡旋探测数据集仓库。

搜集汇总

背景与挑战

背景概述

该数据集结合了TOEddies算法检测的全球中尺度涡旋和Argo浮标剖面数据，用于研究涡旋的动态特征及其在海洋内部的影响。数据集时间跨度为1993年至2023年，覆盖全球海洋区域，特别适用于研究涡旋的相互作用和海洋内部信号。