The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners.
As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.
i
Eddy-Induced Acceleration of Argo Floats
-
2020
-
-
Source: JGR Oceans 125(10): e2020JC016042
[PDF-33.29 MB]
Details:
-
Journal Title:JGR Oceans
-
Personal Author:
-
NOAA Program & Office:
-
Description:Float trajectories are simulated using Lagrangian particle tracking software and eddy-permitting ocean model output from the Estimating the Circulation and Climate of the Ocean, Phase II (ECCO2) project. We find that Argo-like particles near strong mean flows tend to accelerate while at their parking depth. This effect is pronounced in western boundary current regions and in the Antarctic Circumpolar Current system. The acceleration is associated with eddy-mean flow interactions: Eddies converge particles toward regions with stronger mean currents. Particles do not accelerate when they are advected by the eddy or mean flow alone. During a 9-day parking period, speed increases induced by the eddy-mean flow interactions can be as large as 2 cm s−1, representing roughly 10% of the mean velocity. If unaccounted for, this acceleration could bias velocities inferred from observed Argo float trajectories.
-
Keywords:
-
Source:JGR Oceans 125(10): e2020JC016042
-
DOI:
-
Document Type:
-
Funding:
-
Rights Information:Other
-
Compliance:Submitted
-
Main Document Checksum:
-
Download URL:
-
File Type:
