Properties of Short-Period Internal Waves in the Kara Gates Strait Revealed from Spaceborne SAR Data
Author:
Kopyshov Il'ya12ORCID, Kozlov Igor1ORCID, Shiryborova A.34ORCID, Myslenkov Stanislav3356ORCID
Affiliation:
1. Russian Academy of Sciences Sea Hydrophysical Institute 2. Moscow Institute of Physics and Technology (State University) 3. Lomonosov Moscow State University 4. P.P.Shirshov Institute of Oceanology of the Russian Academy of Science 5. P.P. Shirshov Institute of Oceanology of the Russian Academy of Sciences 6. Hydrometeorological Research Centre of the Russian Federation
Abstract
This paper presents the results of identification of surface manifestations (SM) of short-period internal waves (SIW) in Sentinel-1 A/B synthetic aperture radar (SAR) images of the Kara Gates Strait in August–September 2021. 44 SM of SIW trains were detected in 47 SAR images. Statistics of occurrence, propagation direction and spatial characteristics of SIWs in the study area are given. During two months, satellite observations cover almost all phases of spring-neap tidal cycle. The use of a detailed topography of the study area made it possible to identify certain regions with a more frequent presence of the SIW leading crests with a particular focus made on the shallow (< 100 m) part of the strait. Each identified region is then described in terms of water depth, dimensionless slope, amplitudes of tidal current velocity and properties of SIWs. The obtained results were then compared with the results of previous studies.
Publisher
Geophysical Center of the Russian Academy of Sciences
Subject
General Earth and Planetary Sciences
Reference38 articles.
1. Boegman, L., and M. Stastna (2019), Sediment Resuspension and Transport by Internal Solitary Waves, Annual Review of Fluid Mechanics, 51(1), 129–154, https://doi.org/10.1146/annurev-fluid-122316-045049., Boegman, L., and M. Stastna (2019), Sediment Resuspension and Transport by Internal Solitary Waves, Annual Review of Fluid Mechanics, 51(1), 129–154, https://doi.org/10.1146/annurev-fluid-122316-045049. 2. Carr, M., P. Sutherland, A. Haase, K.-U. Evers, I. Fer, A. Jensen, H. Kalisch, J. Berntsen, E. Părău, Ø. Thiem, and P. A. Davies (2019), Laboratory Experiments on Internal Solitary Waves in Ice-Covered Waters, Geophysical Research Letters, 46(21), 12,230–12,238, https://doi.org/10.1029/2019GL084710., Carr, M., P. Sutherland, A. Haase, K.-U. Evers, I. Fer, A. Jensen, H. Kalisch, J. Berntsen, E. Părău, Ø. Thiem, and P. A. Davies (2019), Laboratory Experiments on Internal Solitary Waves in Ice-Covered Waters, Geophysical Research Letters, 46(21), 12,230–12,238, https://doi.org/10.1029/2019GL084710. 3. Czipott, P. V., M. D. Levine, C. A. Paulson, D. Menemenlis, D. M. Farmer, and R. G. Williams (1991), Ice Flexure Forced by Internal Wave Packets in the Arctic Ocean, Science, 254(5033), 832–835, https://doi.org/10.1126/science.254.5033.832., Czipott, P. V., M. D. Levine, C. A. Paulson, D. Menemenlis, D. M. Farmer, and R. G. Williams (1991), Ice Flexure Forced by Internal Wave Packets in the Arctic Ocean, Science, 254(5033), 832–835, https://doi.org/10.1126/science.254.5033.832. 4. da Silva, J. C. B., and K. R. Helfrich (2008), Synthetic Aperture Radar observations of resonantly generated internal solitary waves at Race Point Channel (Cape Cod), Journal of Geophysical Research: Oceans, 113(C11), https://doi.org/10.1029/2008JC005004., da Silva, J. C. B., and K. R. Helfrich (2008), Synthetic Aperture Radar observations of resonantly generated internal solitary waves at Race Point Channel (Cape Cod), Journal of Geophysical Research: Oceans, 113(C11), https://doi.org/10.1029/2008JC005004. 5. D’Asaro, E. A. (2022), How do Internal Waves Create Turbulence and Mixing in the Ocean?, ESS Open Archive, https://doi.org/10.1002/essoar.10511843.1, (Preprint)., D’Asaro, E. A. (2022), How do Internal Waves Create Turbulence and Mixing in the Ocean?, ESS Open Archive, https://doi.org/10.1002/essoar.10511843.1, (Preprint).
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