Clustering of Floating Tracer Due to Mesoscale Vortex and Submesoscale Fields
Abstract Floating tracer clustering is studied in oceanic flows that combine both a field of coherent mesoscale vortices, as simulated by a regional, comprehensive, eddy‐resolving general circulation model, and kinematic random submesoscale velocity fields. Both fields have rotational and divergent...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-02-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2019GL086504 |
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| author | Dmitry V. Stepanov Eugene A. Ryzhov Alexei A. Zagumennov Pavel Berloff Konstantin V. Koshel |
| author_facet | Dmitry V. Stepanov Eugene A. Ryzhov Alexei A. Zagumennov Pavel Berloff Konstantin V. Koshel |
| author_sort | Dmitry V. Stepanov |
| collection | DOAJ |
| description | Abstract Floating tracer clustering is studied in oceanic flows that combine both a field of coherent mesoscale vortices, as simulated by a regional, comprehensive, eddy‐resolving general circulation model, and kinematic random submesoscale velocity fields. Both fields have rotational and divergent velocity components, and depending on their relative contributions, as well as on the local characteristics of the mesoscale vortices, we identified different clustering scenarios. We found that the mesoscale vortices do not prevent clustering but significantly modify its rate and spatial pattern. We also demonstrated that even weak surface‐velocity divergence has to be taken into account to avoid significant errors in model predictions of the floating tracer patterns. Our approach combining dynamically constrained and random velocity fields, and the applied diagnostic methods, are proposed as standard tools for analyses and predictions of floating tracer distributions, in both observational data and general circulation models. |
| format | Article |
| id | doaj-art-da4d7ab3410047d5a8cb2ae1b0fe6e71 |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2020-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-da4d7ab3410047d5a8cb2ae1b0fe6e712025-08-20T01:50:15ZengWileyGeophysical Research Letters0094-82761944-80072020-02-01473n/an/a10.1029/2019GL086504Clustering of Floating Tracer Due to Mesoscale Vortex and Submesoscale FieldsDmitry V. Stepanov0Eugene A. Ryzhov1Alexei A. Zagumennov2Pavel Berloff3Konstantin V. Koshel4V.I. Il'ichev Pacific Oceanological Institute of FEB RAS Vladivostok RussiaV.I. Il'ichev Pacific Oceanological Institute of FEB RAS Vladivostok RussiaInstitute of Automation and Control Processes FEB RAS Vladivostok RussiaDepartment of Mathematics Imperial College London London UKV.I. Il'ichev Pacific Oceanological Institute of FEB RAS Vladivostok RussiaAbstract Floating tracer clustering is studied in oceanic flows that combine both a field of coherent mesoscale vortices, as simulated by a regional, comprehensive, eddy‐resolving general circulation model, and kinematic random submesoscale velocity fields. Both fields have rotational and divergent velocity components, and depending on their relative contributions, as well as on the local characteristics of the mesoscale vortices, we identified different clustering scenarios. We found that the mesoscale vortices do not prevent clustering but significantly modify its rate and spatial pattern. We also demonstrated that even weak surface‐velocity divergence has to be taken into account to avoid significant errors in model predictions of the floating tracer patterns. Our approach combining dynamically constrained and random velocity fields, and the applied diagnostic methods, are proposed as standard tools for analyses and predictions of floating tracer distributions, in both observational data and general circulation models.https://doi.org/10.1029/2019GL086504tracer clusteringmesoscale eddiessubmesoscaledivergencerandom velocity field |
| spellingShingle | Dmitry V. Stepanov Eugene A. Ryzhov Alexei A. Zagumennov Pavel Berloff Konstantin V. Koshel Clustering of Floating Tracer Due to Mesoscale Vortex and Submesoscale Fields Geophysical Research Letters tracer clustering mesoscale eddies submesoscale divergence random velocity field |
| title | Clustering of Floating Tracer Due to Mesoscale Vortex and Submesoscale Fields |
| title_full | Clustering of Floating Tracer Due to Mesoscale Vortex and Submesoscale Fields |
| title_fullStr | Clustering of Floating Tracer Due to Mesoscale Vortex and Submesoscale Fields |
| title_full_unstemmed | Clustering of Floating Tracer Due to Mesoscale Vortex and Submesoscale Fields |
| title_short | Clustering of Floating Tracer Due to Mesoscale Vortex and Submesoscale Fields |
| title_sort | clustering of floating tracer due to mesoscale vortex and submesoscale fields |
| topic | tracer clustering mesoscale eddies submesoscale divergence random velocity field |
| url | https://doi.org/10.1029/2019GL086504 |
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