Divergent Leakage Features of Anticyclonic and Cyclonic Mesoscale Eddies
Abstract Eddies can carry water over hundreds of kilometers, but there is also water leakage during eddy movement. By tracking the global drifters' trajectories related to oceanic eddies, we find that, in the Northern (Southern) Hemisphere, drifters in the eddies tend to leave anticyclonic/cycl...
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| Format: | Article |
| Language: | English |
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Wiley
2025-04-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2024GL113486 |
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| author | Yanjiang Lin Guihua Wang |
| author_facet | Yanjiang Lin Guihua Wang |
| author_sort | Yanjiang Lin |
| collection | DOAJ |
| description | Abstract Eddies can carry water over hundreds of kilometers, but there is also water leakage during eddy movement. By tracking the global drifters' trajectories related to oceanic eddies, we find that, in the Northern (Southern) Hemisphere, drifters in the eddies tend to leave anticyclonic/cyclonic eddies from the rear left/right (right/left) side relative to the eddy movement direction. A further simulation displays that there are potential vorticity (PV) channel structures in eddies' margins, and particles tend to leave the eddies via the channel. Theoretical analyses illustrate that particles on the PV channel always propagate oppositely to the eddy rotation due to the relative vorticity gradient of eddy flow. This study offers a new perspective on eddies' leakage and may be crucial for investigating oceanic mass redistribution. |
| format | Article |
| id | doaj-art-de3e5c6fe62b4926b4c115e959d7e3d0 |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-de3e5c6fe62b4926b4c115e959d7e3d02025-08-20T02:56:35ZengWileyGeophysical Research Letters0094-82761944-80072025-04-01528n/an/a10.1029/2024GL113486Divergent Leakage Features of Anticyclonic and Cyclonic Mesoscale EddiesYanjiang Lin0Guihua Wang1Department of Atmospheric and Oceanic Sciences & Institute of Atmospheric Sciences Fudan University Shanghai ChinaDepartment of Atmospheric and Oceanic Sciences & Institute of Atmospheric Sciences Fudan University Shanghai ChinaAbstract Eddies can carry water over hundreds of kilometers, but there is also water leakage during eddy movement. By tracking the global drifters' trajectories related to oceanic eddies, we find that, in the Northern (Southern) Hemisphere, drifters in the eddies tend to leave anticyclonic/cyclonic eddies from the rear left/right (right/left) side relative to the eddy movement direction. A further simulation displays that there are potential vorticity (PV) channel structures in eddies' margins, and particles tend to leave the eddies via the channel. Theoretical analyses illustrate that particles on the PV channel always propagate oppositely to the eddy rotation due to the relative vorticity gradient of eddy flow. This study offers a new perspective on eddies' leakage and may be crucial for investigating oceanic mass redistribution.https://doi.org/10.1029/2024GL113486mesoscale eddywater leakagePV anomaliesdivergent leakage |
| spellingShingle | Yanjiang Lin Guihua Wang Divergent Leakage Features of Anticyclonic and Cyclonic Mesoscale Eddies Geophysical Research Letters mesoscale eddy water leakage PV anomalies divergent leakage |
| title | Divergent Leakage Features of Anticyclonic and Cyclonic Mesoscale Eddies |
| title_full | Divergent Leakage Features of Anticyclonic and Cyclonic Mesoscale Eddies |
| title_fullStr | Divergent Leakage Features of Anticyclonic and Cyclonic Mesoscale Eddies |
| title_full_unstemmed | Divergent Leakage Features of Anticyclonic and Cyclonic Mesoscale Eddies |
| title_short | Divergent Leakage Features of Anticyclonic and Cyclonic Mesoscale Eddies |
| title_sort | divergent leakage features of anticyclonic and cyclonic mesoscale eddies |
| topic | mesoscale eddy water leakage PV anomalies divergent leakage |
| url | https://doi.org/10.1029/2024GL113486 |
| work_keys_str_mv | AT yanjianglin divergentleakagefeaturesofanticyclonicandcyclonicmesoscaleeddies AT guihuawang divergentleakagefeaturesofanticyclonicandcyclonicmesoscaleeddies |