Estimates of wind power and radiative near-inertial internal wave flux
Energy transfer mechanisms between the atmosphere and the deep ocean have been studied for many years. Their importance to the ocean's energy balance and possible implications on mixing are widely accepted. The slab model by Pollard (Deep-Sea Res Oceanogr Abstr 17(4):795-812, 1970) is a well-es...
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ftzbmed:oai:frl.publisso.de:frl:6470624 2024-01-07T09:45:05+01:00 Estimates of wind power and radiative near-inertial internal wave flux Voelker, Georg Sebastian Olbers, Dirk Walter, Maren Mertens, Christian Myers, Paul G. 2020 https://repository.publisso.de/resource/frl:6470624 https://doi.org/10.1007/s10236-020-01388-y https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7591110/ eng eng https://repository.publisso.de/resource/frl:6470624 https://doi.org/10.1007/s10236-020-01388-y https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7591110/ https://creativecommons.org/licenses/by/4.0/ http://lobid.org/resources/99370678071506441#!, 70(11):1357-1376 Article Internal gravity waves Wind ocean coupling Near inertial waves Zeitschriftenartikel 2020 ftzbmed https://doi.org/10.1007/s10236-020-01388-y 2023-12-10T23:07:48Z Energy transfer mechanisms between the atmosphere and the deep ocean have been studied for many years. Their importance to the ocean's energy balance and possible implications on mixing are widely accepted. The slab model by Pollard (Deep-Sea Res Oceanogr Abstr 17(4):795-812, 1970) is a well-established simulation of near-inertial motion and energy inferred through wind-ocean interaction. Such a model is set up with hourly wind forcing from the NCEP-CFSR reanalysis that allows computations up to high latitudes without loss of resonance. Augmenting the one-dimensional model with the horizontal divergence of the near-inertial current field leads to direct estimates of energy transfer spectra of internal wave radiation from the mixed layer base into the ocean interior. Calculations using this hybrid model are carried out for the North Atlantic during the years 1989 and 1996, which are associated with positive and negative North Atlantic Oscillation index, respectively. Results indicate a range of meridional regimes with distinct energy transfer ratios. These are interpreted in terms of the mixed layer depth, the buoyancy frequency at the mixed layer base, and the wind field structure. The average ratio of radiated energy fluxes from the mixed layer to near-inertial wind power for both years is approximately 12%. The dependence on the wind structure is supported by simulations of idealized wind stress fronts with variable width and translation speeds. Article in Journal/Newspaper North Atlantic North Atlantic oscillation PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) Pollard ENVELOPE(64.617,64.617,-70.467,-70.467) Ocean Dynamics 70 11 1357 1376 |
institution |
Open Polar |
collection |
PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) |
op_collection_id |
ftzbmed |
language |
English |
topic |
Article Internal gravity waves Wind ocean coupling Near inertial waves |
spellingShingle |
Article Internal gravity waves Wind ocean coupling Near inertial waves Voelker, Georg Sebastian Olbers, Dirk Walter, Maren Mertens, Christian Myers, Paul G. Estimates of wind power and radiative near-inertial internal wave flux |
topic_facet |
Article Internal gravity waves Wind ocean coupling Near inertial waves |
description |
Energy transfer mechanisms between the atmosphere and the deep ocean have been studied for many years. Their importance to the ocean's energy balance and possible implications on mixing are widely accepted. The slab model by Pollard (Deep-Sea Res Oceanogr Abstr 17(4):795-812, 1970) is a well-established simulation of near-inertial motion and energy inferred through wind-ocean interaction. Such a model is set up with hourly wind forcing from the NCEP-CFSR reanalysis that allows computations up to high latitudes without loss of resonance. Augmenting the one-dimensional model with the horizontal divergence of the near-inertial current field leads to direct estimates of energy transfer spectra of internal wave radiation from the mixed layer base into the ocean interior. Calculations using this hybrid model are carried out for the North Atlantic during the years 1989 and 1996, which are associated with positive and negative North Atlantic Oscillation index, respectively. Results indicate a range of meridional regimes with distinct energy transfer ratios. These are interpreted in terms of the mixed layer depth, the buoyancy frequency at the mixed layer base, and the wind field structure. The average ratio of radiated energy fluxes from the mixed layer to near-inertial wind power for both years is approximately 12%. The dependence on the wind structure is supported by simulations of idealized wind stress fronts with variable width and translation speeds. |
format |
Article in Journal/Newspaper |
author |
Voelker, Georg Sebastian Olbers, Dirk Walter, Maren Mertens, Christian Myers, Paul G. |
author_facet |
Voelker, Georg Sebastian Olbers, Dirk Walter, Maren Mertens, Christian Myers, Paul G. |
author_sort |
Voelker, Georg Sebastian |
title |
Estimates of wind power and radiative near-inertial internal wave flux |
title_short |
Estimates of wind power and radiative near-inertial internal wave flux |
title_full |
Estimates of wind power and radiative near-inertial internal wave flux |
title_fullStr |
Estimates of wind power and radiative near-inertial internal wave flux |
title_full_unstemmed |
Estimates of wind power and radiative near-inertial internal wave flux |
title_sort |
estimates of wind power and radiative near-inertial internal wave flux |
publishDate |
2020 |
url |
https://repository.publisso.de/resource/frl:6470624 https://doi.org/10.1007/s10236-020-01388-y https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7591110/ |
long_lat |
ENVELOPE(64.617,64.617,-70.467,-70.467) |
geographic |
Pollard |
geographic_facet |
Pollard |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
http://lobid.org/resources/99370678071506441#!, 70(11):1357-1376 |
op_relation |
https://repository.publisso.de/resource/frl:6470624 https://doi.org/10.1007/s10236-020-01388-y https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7591110/ |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1007/s10236-020-01388-y |
container_title |
Ocean Dynamics |
container_volume |
70 |
container_issue |
11 |
container_start_page |
1357 |
op_container_end_page |
1376 |
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1787426529879261184 |