Monsoon‐Frontal Interactions Drive Cyclone Biparjoy's Wake Recovery in the Arabian Sea
Abstract Cyclone‐generated cold wakes enhance productivity and impact local air‐sea interaction, paths and intensities of subsequent storms in the region. However, in‐situ observations of recovery across such wakes are rare. A cold wake in the Arabian Sea was surveyed using multiple shipboard instru...
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| Format: | Article |
| Language: | English |
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Wiley
2025-02-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2024GL112413 |
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| author | Siddhant Kerhalkar Ankitha Kannad Alex Kinsella Amit Tandon Janet Sprintall Craig M. Lee |
| author_facet | Siddhant Kerhalkar Ankitha Kannad Alex Kinsella Amit Tandon Janet Sprintall Craig M. Lee |
| author_sort | Siddhant Kerhalkar |
| collection | DOAJ |
| description | Abstract Cyclone‐generated cold wakes enhance productivity and impact local air‐sea interaction, paths and intensities of subsequent storms in the region. However, in‐situ observations of recovery across such wakes are rare. A cold wake in the Arabian Sea was surveyed using multiple shipboard instruments approximately 10 days after the passage of Cyclone Biparjoy in 2023. The wake, nearly 30 km wide, had a stronger (weaker) buoyancy gradient at its eastern (western) edge and assumed a downfront (upfront) orientation relative to the southwesterly monsoon winds. This resulted in notable asymmetry in the vertical structure of temperature, salinity and velocity at the edges of the wake, indicating the importance of Ekman Buoyancy Fluxes and Mixed Layer Eddies. While the wake recovery following a cyclone is often attributed to one‐dimensional diurnal heating and cooling, these observations underscore the role of interactions between monsoon winds and underlying three‐dimensional submesoscale processes for a slow‐moving cyclone wake recovery. |
| format | Article |
| id | doaj-art-9987c811263b4cfbb9cac564dc607dba |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Wiley |
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| series | Geophysical Research Letters |
| spelling | doaj-art-9987c811263b4cfbb9cac564dc607dba2025-08-20T01:50:41ZengWileyGeophysical Research Letters0094-82761944-80072025-02-01524n/an/a10.1029/2024GL112413Monsoon‐Frontal Interactions Drive Cyclone Biparjoy's Wake Recovery in the Arabian SeaSiddhant Kerhalkar0Ankitha Kannad1Alex Kinsella2Amit Tandon3Janet Sprintall4Craig M. Lee5School for Marine Science and Technology University of Massachusetts Dartmouth New Bedford MA USAScripps Institution of Oceanography University of California San Diego La Jolla CA USADepartment of Physical Oceanography Woods Hole Oceanographic Institution Woods Hole MA USASchool for Marine Science and Technology University of Massachusetts Dartmouth New Bedford MA USAScripps Institution of Oceanography University of California San Diego La Jolla CA USAApplied Physics Laboratory University of Washington Seattle WA USAAbstract Cyclone‐generated cold wakes enhance productivity and impact local air‐sea interaction, paths and intensities of subsequent storms in the region. However, in‐situ observations of recovery across such wakes are rare. A cold wake in the Arabian Sea was surveyed using multiple shipboard instruments approximately 10 days after the passage of Cyclone Biparjoy in 2023. The wake, nearly 30 km wide, had a stronger (weaker) buoyancy gradient at its eastern (western) edge and assumed a downfront (upfront) orientation relative to the southwesterly monsoon winds. This resulted in notable asymmetry in the vertical structure of temperature, salinity and velocity at the edges of the wake, indicating the importance of Ekman Buoyancy Fluxes and Mixed Layer Eddies. While the wake recovery following a cyclone is often attributed to one‐dimensional diurnal heating and cooling, these observations underscore the role of interactions between monsoon winds and underlying three‐dimensional submesoscale processes for a slow‐moving cyclone wake recovery.https://doi.org/10.1029/2024GL112413slow‐moving cycloneEkman buoyancy fluxessubmesoscale processesasymmetric wake evolutionFilament |
| spellingShingle | Siddhant Kerhalkar Ankitha Kannad Alex Kinsella Amit Tandon Janet Sprintall Craig M. Lee Monsoon‐Frontal Interactions Drive Cyclone Biparjoy's Wake Recovery in the Arabian Sea Geophysical Research Letters slow‐moving cyclone Ekman buoyancy fluxes submesoscale processes asymmetric wake evolution Filament |
| title | Monsoon‐Frontal Interactions Drive Cyclone Biparjoy's Wake Recovery in the Arabian Sea |
| title_full | Monsoon‐Frontal Interactions Drive Cyclone Biparjoy's Wake Recovery in the Arabian Sea |
| title_fullStr | Monsoon‐Frontal Interactions Drive Cyclone Biparjoy's Wake Recovery in the Arabian Sea |
| title_full_unstemmed | Monsoon‐Frontal Interactions Drive Cyclone Biparjoy's Wake Recovery in the Arabian Sea |
| title_short | Monsoon‐Frontal Interactions Drive Cyclone Biparjoy's Wake Recovery in the Arabian Sea |
| title_sort | monsoon frontal interactions drive cyclone biparjoy s wake recovery in the arabian sea |
| topic | slow‐moving cyclone Ekman buoyancy fluxes submesoscale processes asymmetric wake evolution Filament |
| url | https://doi.org/10.1029/2024GL112413 |
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