Multi-Sensor Observations Reveal Large-Amplitude Nonlinear Internal Waves in the Kara Gates, Arctic Ocean
We present multi-sensor measurements from satellites, unmanned aerial vehicle, marine radar, thermal profilers, and repeated conductivity–temperature–depth casts made in the Kara Gates strait connecting the Barents and the Kara Seas during spring tide in August 2021. Analysis of the field data durin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/15/24/5769 |
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| author | Igor E. Kozlov Ilya O. Kopyshov Dmitry I. Frey Eugene G. Morozov Igor P. Medvedev Arina I. Shiryborova Ksenya P. Silvestrova Aleksandr V. Gavrikov Elizaveta A. Ezhova Dmitry M. Soloviev Evgeny V. Plotnikov Vladislav R. Zhuk Pavel V. Gaisky Alexander A. Osadchiev Natalia B. Stepanova |
| author_facet | Igor E. Kozlov Ilya O. Kopyshov Dmitry I. Frey Eugene G. Morozov Igor P. Medvedev Arina I. Shiryborova Ksenya P. Silvestrova Aleksandr V. Gavrikov Elizaveta A. Ezhova Dmitry M. Soloviev Evgeny V. Plotnikov Vladislav R. Zhuk Pavel V. Gaisky Alexander A. Osadchiev Natalia B. Stepanova |
| author_sort | Igor E. Kozlov |
| collection | DOAJ |
| description | We present multi-sensor measurements from satellites, unmanned aerial vehicle, marine radar, thermal profilers, and repeated conductivity–temperature–depth casts made in the Kara Gates strait connecting the Barents and the Kara Seas during spring tide in August 2021. Analysis of the field data during an 18-h period from four stations provides evidence that a complex sill in the Kara Gates is the site of regular production of intense large-amplitude nonlinear internal waves. Satellite data show a presence of a relatively warm northeastward surface current from the Barents Sea toward the Kara Sea attaining 0.8–0.9 m/s. Triangle-shaped measurements using three thermal profilers revealed pronounced vertical thermocline oscillations up to 40 m associated with propagation of short-period nonlinear internal waves of depression generated by stratified flow passing a system of shallow sills in the strait. The most intense waves were recorded during the ebb tide slackening and reversal when the background flow was predominantly supercritical. Observed internal waves had wavelengths of ~100 m and traveled northeastward with phase speeds of 0.8–0.9 m/s. The total internal wave energy per unit crest length for the largest waves was estimated to be equal to 1.0–1.8 MJ/m. |
| first_indexed | 2024-03-08T20:24:01Z |
| format | Article |
| id | doaj.art-55ff3bc51c6a42f8a2b308d6756f5015 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-08T20:24:01Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-55ff3bc51c6a42f8a2b308d6756f50152023-12-22T14:39:18ZengMDPI AGRemote Sensing2072-42922023-12-011524576910.3390/rs15245769Multi-Sensor Observations Reveal Large-Amplitude Nonlinear Internal Waves in the Kara Gates, Arctic OceanIgor E. Kozlov0Ilya O. Kopyshov1Dmitry I. Frey2Eugene G. Morozov3Igor P. Medvedev4Arina I. Shiryborova5Ksenya P. Silvestrova6Aleksandr V. Gavrikov7Elizaveta A. Ezhova8Dmitry M. Soloviev9Evgeny V. Plotnikov10Vladislav R. Zhuk11Pavel V. Gaisky12Alexander A. Osadchiev13Natalia B. Stepanova14Marine Hydrophysical Institute of RAS, 299011 Sevastopol, RussiaMarine Hydrophysical Institute of RAS, 299011 Sevastopol, RussiaMarine Hydrophysical Institute of RAS, 299011 Sevastopol, RussiaMarine Hydrophysical Institute of RAS, 299011 Sevastopol, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 117997 Moscow, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 117997 Moscow, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 117997 Moscow, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 117997 Moscow, RussiaMoscow Institute of Physics and Technology, 141701 Dolgoprudny, RussiaMarine Hydrophysical Institute of RAS, 299011 Sevastopol, RussiaMarine Hydrophysical Institute of RAS, 299011 Sevastopol, RussiaMarine Hydrophysical Institute of RAS, 299011 Sevastopol, RussiaMarine Hydrophysical Institute of RAS, 299011 Sevastopol, RussiaMoscow Institute of Physics and Technology, 141701 Dolgoprudny, RussiaMoscow Institute of Physics and Technology, 141701 Dolgoprudny, RussiaWe present multi-sensor measurements from satellites, unmanned aerial vehicle, marine radar, thermal profilers, and repeated conductivity–temperature–depth casts made in the Kara Gates strait connecting the Barents and the Kara Seas during spring tide in August 2021. Analysis of the field data during an 18-h period from four stations provides evidence that a complex sill in the Kara Gates is the site of regular production of intense large-amplitude nonlinear internal waves. Satellite data show a presence of a relatively warm northeastward surface current from the Barents Sea toward the Kara Sea attaining 0.8–0.9 m/s. Triangle-shaped measurements using three thermal profilers revealed pronounced vertical thermocline oscillations up to 40 m associated with propagation of short-period nonlinear internal waves of depression generated by stratified flow passing a system of shallow sills in the strait. The most intense waves were recorded during the ebb tide slackening and reversal when the background flow was predominantly supercritical. Observed internal waves had wavelengths of ~100 m and traveled northeastward with phase speeds of 0.8–0.9 m/s. The total internal wave energy per unit crest length for the largest waves was estimated to be equal to 1.0–1.8 MJ/m.https://www.mdpi.com/2072-4292/15/24/5769nonlinear internal waveslarge-amplitude wavestidal currentsspring tidetide–topography interactionsthermal profilers |
| spellingShingle | Igor E. Kozlov Ilya O. Kopyshov Dmitry I. Frey Eugene G. Morozov Igor P. Medvedev Arina I. Shiryborova Ksenya P. Silvestrova Aleksandr V. Gavrikov Elizaveta A. Ezhova Dmitry M. Soloviev Evgeny V. Plotnikov Vladislav R. Zhuk Pavel V. Gaisky Alexander A. Osadchiev Natalia B. Stepanova Multi-Sensor Observations Reveal Large-Amplitude Nonlinear Internal Waves in the Kara Gates, Arctic Ocean Remote Sensing nonlinear internal waves large-amplitude waves tidal currents spring tide tide–topography interactions thermal profilers |
| title | Multi-Sensor Observations Reveal Large-Amplitude Nonlinear Internal Waves in the Kara Gates, Arctic Ocean |
| title_full | Multi-Sensor Observations Reveal Large-Amplitude Nonlinear Internal Waves in the Kara Gates, Arctic Ocean |
| title_fullStr | Multi-Sensor Observations Reveal Large-Amplitude Nonlinear Internal Waves in the Kara Gates, Arctic Ocean |
| title_full_unstemmed | Multi-Sensor Observations Reveal Large-Amplitude Nonlinear Internal Waves in the Kara Gates, Arctic Ocean |
| title_short | Multi-Sensor Observations Reveal Large-Amplitude Nonlinear Internal Waves in the Kara Gates, Arctic Ocean |
| title_sort | multi sensor observations reveal large amplitude nonlinear internal waves in the kara gates arctic ocean |
| topic | nonlinear internal waves large-amplitude waves tidal currents spring tide tide–topography interactions thermal profilers |
| url | https://www.mdpi.com/2072-4292/15/24/5769 |
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