Mesoscale Eddy Trajectory Atlas META3.2 Delayed-Time: Two Satellites, Short Trajectories

Description

The Mesoscale Eddy Trajectory Atlas DT (META3.2 DT twosat and META3.2 DT allsat) products, processed by CNES/CLS in the DUACS system, are generated and quality-controlled following the methodology developed E. Mason at the Instituto Mediterráneo de Estudios Avanzados (IMEDEA, Spain). This twosat dataset contains short trajectory (lifetime < 10 days) “anticyclonic and cyclonic eddies detected from the multimission altimetry datasets, with their location, contours, amplitude, radius speed and associated metadata, for the whole altimetry period: 1993-ongoing.” Details on detection, filtering and processing can be found in the Eddy Trajectory Atlas Product Handbook. This dataset is composed of the trajectories and all associated parameters for the eddies detected with the py-eddy-tracker algorithm (Mason et al., 2014) freely released under a GPL V3 license (https://github.com/AntSimi/py-eddy-tracker). The original dataset includes 50 samples per observation with variations in effective contour location and speed. CMAP includes the first sample of each observation.

This description has been reproduced using the following source:

https://www.aviso.altimetry.fr/en/data/products/value-added-products/global-mesoscale-eddy-trajectory-product/meta3-2-dt.html

Visualization

Dataset Overview
MakeObservation
SensorSatellite
Process LevelReprocessed
Database Table NametblMesoscale_Eddy_twosats_short
Database Dataset NameMesoscale_Eddy_twosats_short
Temporal ResolutionDaily
Date Start*1993-01-01
Date End*2020-03-07
Spatial ResolutionIrregular
Lat Min*-78.17381°
Lat Max*83.777245°
Lon Min*-179.9999°
Lon Max*180°
Depth Min*Surface Only
Depth Max*Surface Only

*Temporal and spatial coverage may differ between member variables

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Data Source

AVISO+

Distributor

AVISO+

Acknowledgement

The altimetric Mesoscale Eddy Trajectories Atlas (META3.2 DT) was produced by SSALTO/DUACS and distributed by AVISO+ (https://aviso.altimetry.fr ) with support from CNES, in collaboration with IMEDEA (DOI: 10.24400/527896/a01-2022.005.210802 for the META3.2 DT allsat version and 10.24400/527896/a01-2022.006.210802 for the META3.2 DT twosat version)

References
Reference
https://doi.org/10.24400/527896/a01-2022.005
Mason, E., A. Pascual, and J.C. McWilliams, 2014: A New Sea Surface Height–Based Code for Oceanic Mesoscale Eddy Tracking. J. Atmos. Oceanic Technol., 31, 1181–1188, https://doi.org/10.1175/JTECH-D-14-00019.1
Pegliasco, C., Delepoulle, A., Mason, E., Morrow, R., Faugère, Y., Dibarboure, G., 2022. META3.1exp: a new global mesoscale eddy trajectory atlas derived from altimetry. Earth Syst. Sci. Data 14, 1087–1107. https://doi.org/10.5194/essd-14-1087-2022
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