Microstructure observations during the spring 2011 STRATIPHYT-II cruise in the northeast Atlantic
Small-scale temperature and conductivity variations have been measured in the upper 100 m of the northeast Atlantic during the STRATIPHYT-II cruise (Las Palmas–Reykjavik, 6 April–3 May 2011). The measurements were done at midday and comprised 2 to 15 vertical profiles at each station. The derived tu...
Published in: | Ocean Science |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2012
|
Subjects: | |
Online Access: | https://doi.org/10.5194/os-8-945-2012 http://www.ocean-sci.net/8/945/2012/os-8-945-2012.pdf https://doaj.org/article/a9e0afc73f08413291949465276d0b91 |
id |
fttriple:oai:gotriple.eu:oai:doaj.org/article:a9e0afc73f08413291949465276d0b91 |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:oai:doaj.org/article:a9e0afc73f08413291949465276d0b91 2023-05-15T17:41:17+02:00 Microstructure observations during the spring 2011 STRATIPHYT-II cruise in the northeast Atlantic E. Jurado H. A. Dijkstra H. J. van der Woerd 2012-11-01 https://doi.org/10.5194/os-8-945-2012 http://www.ocean-sci.net/8/945/2012/os-8-945-2012.pdf https://doaj.org/article/a9e0afc73f08413291949465276d0b91 en eng Copernicus Publications doi:10.5194/os-8-945-2012 1812-0784 1812-0792 http://www.ocean-sci.net/8/945/2012/os-8-945-2012.pdf https://doaj.org/article/a9e0afc73f08413291949465276d0b91 undefined Ocean Science, Vol 8, Iss 6, Pp 945-957 (2012) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2012 fttriple https://doi.org/10.5194/os-8-945-2012 2023-01-22T19:25:52Z Small-scale temperature and conductivity variations have been measured in the upper 100 m of the northeast Atlantic during the STRATIPHYT-II cruise (Las Palmas–Reykjavik, 6 April–3 May 2011). The measurements were done at midday and comprised 2 to 15 vertical profiles at each station. The derived turbulent quantities show a transition between weakly-stratified (mixed layer depth, MLD, 100), which was centered at about 48° N. The temperature eddy diffusivities, KT, range from 10−5 to 100 m2 s−1 in the weakly-stratified stations, and range from 3 × 10−4 to 2 × 100 m2 s−1 in the well-mixed stations. The turbulent kinetic energy dissipation rates, ε, range from 3 × 10−8 to 2 × 10−6 m2 s−3 south of the transition zone, and from 10−7 to 10−5 m2 s−3 north of the transition zone. The station-averaged KT values throughout the mixed layer increase exponentially with the wind speed. The station-averaged ε values throughout the mixed layer scale with the wind stress similarity variable with a scaling factor of about 1.8 in the wind-dominated stations (ε ≈ 1.8 u☆3/(−κz)). The values of KT and ε are on average 10 times higher compared to the values measured at the same stations in July 2009. The results presented here constitute a unique data set giving large spatial coverage of upper ocean spring turbulence quantities. Article in Journal/Newspaper Northeast Atlantic Unknown Las Palmas ENVELOPE(-60.674,-60.674,-62.971,-62.971) Ocean Science 8 6 945 957 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir E. Jurado H. A. Dijkstra H. J. van der Woerd Microstructure observations during the spring 2011 STRATIPHYT-II cruise in the northeast Atlantic |
topic_facet |
geo envir |
description |
Small-scale temperature and conductivity variations have been measured in the upper 100 m of the northeast Atlantic during the STRATIPHYT-II cruise (Las Palmas–Reykjavik, 6 April–3 May 2011). The measurements were done at midday and comprised 2 to 15 vertical profiles at each station. The derived turbulent quantities show a transition between weakly-stratified (mixed layer depth, MLD, 100), which was centered at about 48° N. The temperature eddy diffusivities, KT, range from 10−5 to 100 m2 s−1 in the weakly-stratified stations, and range from 3 × 10−4 to 2 × 100 m2 s−1 in the well-mixed stations. The turbulent kinetic energy dissipation rates, ε, range from 3 × 10−8 to 2 × 10−6 m2 s−3 south of the transition zone, and from 10−7 to 10−5 m2 s−3 north of the transition zone. The station-averaged KT values throughout the mixed layer increase exponentially with the wind speed. The station-averaged ε values throughout the mixed layer scale with the wind stress similarity variable with a scaling factor of about 1.8 in the wind-dominated stations (ε ≈ 1.8 u☆3/(−κz)). The values of KT and ε are on average 10 times higher compared to the values measured at the same stations in July 2009. The results presented here constitute a unique data set giving large spatial coverage of upper ocean spring turbulence quantities. |
format |
Article in Journal/Newspaper |
author |
E. Jurado H. A. Dijkstra H. J. van der Woerd |
author_facet |
E. Jurado H. A. Dijkstra H. J. van der Woerd |
author_sort |
E. Jurado |
title |
Microstructure observations during the spring 2011 STRATIPHYT-II cruise in the northeast Atlantic |
title_short |
Microstructure observations during the spring 2011 STRATIPHYT-II cruise in the northeast Atlantic |
title_full |
Microstructure observations during the spring 2011 STRATIPHYT-II cruise in the northeast Atlantic |
title_fullStr |
Microstructure observations during the spring 2011 STRATIPHYT-II cruise in the northeast Atlantic |
title_full_unstemmed |
Microstructure observations during the spring 2011 STRATIPHYT-II cruise in the northeast Atlantic |
title_sort |
microstructure observations during the spring 2011 stratiphyt-ii cruise in the northeast atlantic |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/os-8-945-2012 http://www.ocean-sci.net/8/945/2012/os-8-945-2012.pdf https://doaj.org/article/a9e0afc73f08413291949465276d0b91 |
long_lat |
ENVELOPE(-60.674,-60.674,-62.971,-62.971) |
geographic |
Las Palmas |
geographic_facet |
Las Palmas |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Ocean Science, Vol 8, Iss 6, Pp 945-957 (2012) |
op_relation |
doi:10.5194/os-8-945-2012 1812-0784 1812-0792 http://www.ocean-sci.net/8/945/2012/os-8-945-2012.pdf https://doaj.org/article/a9e0afc73f08413291949465276d0b91 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/os-8-945-2012 |
container_title |
Ocean Science |
container_volume |
8 |
container_issue |
6 |
container_start_page |
945 |
op_container_end_page |
957 |
_version_ |
1766142742622109696 |