Two fine-scale eddy cases identified by SWOT altimetry observations. (IMAGE)
Caption
a The panel presents the DUACS SSHA along with two descending SWOT swaths superimposed on 20 May 2024. The two red boxes represent the identification region of fine-scale eddy samples. b, c The ΔSLA (b) and log10CHL (c) snapshots in the region 48.5°N–51.5°N, 151°E–153°E on 20 May 2024, where blue/red points denote identified anticyclonic/cyclonic fine-scale eddies, respectively. The red box denotes the identified cyclonic eddy example. d, e A fine-scale cyclonic eddy example marked with the red boxes in b and c, along with its distributions of ΔSLA (d) and log10CHL (e). The white dot represents the eddy center, and the white line represents the eddy boundary. f, g The ΔSLA (f) and log10CHL (g) snapshots in the region 41.5°N–44.5°N, 146.5°E–148.5°E on 13 July 2024, where blue/red points denote anticyclonic/cyclonic eddies, respectively. The red box denotes the identified anticyclonic eddy example. h, i Red boxes in f, g that denote a fine-scale anticyclonic eddy example and its distributions of ΔSLA (h) and log10CHL (i). The white dot represents the eddy center, and the white line represents the eddy boundary. ΔSLA is the SLA difference between the SWOT and DUACS.
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