Regional differences in modelled net production and shallow remineralization in the North Atlantic subtropical gyre
We used 5-yr concomitant data of tracer distribution from the BATS (Bermuda Time-series Study) and ESTOC (European Station for Time-Series in the Ocean, Canary Islands) sites to build a 1-D tracer model conservation including horizontal advection, and then compute net production and shallow reminera...
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ftdoajarticles:oai:doaj.org/article:38362809ab5f461baba7b93059d11ea9 2023-05-15T17:35:36+02:00 Regional differences in modelled net production and shallow remineralization in the North Atlantic subtropical gyre B. Fernández-Castro L. Anderson E. Marañón S. Neuer B. Ausín M. González-Dávila J. M. Santana-Casiano A. Cianca R. Santana O. LLinás M. J. Rueda B. Mouriño-Carballido 2012-08-01T00:00:00Z https://doi.org/10.5194/bg-9-2831-2012 https://doaj.org/article/38362809ab5f461baba7b93059d11ea9 EN eng Copernicus Publications http://www.biogeosciences.net/9/2831/2012/bg-9-2831-2012.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-9-2831-2012 1726-4170 1726-4189 https://doaj.org/article/38362809ab5f461baba7b93059d11ea9 Biogeosciences, Vol 9, Iss 8, Pp 2831-2846 (2012) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2012 ftdoajarticles https://doi.org/10.5194/bg-9-2831-2012 2022-12-31T02:51:32Z We used 5-yr concomitant data of tracer distribution from the BATS (Bermuda Time-series Study) and ESTOC (European Station for Time-Series in the Ocean, Canary Islands) sites to build a 1-D tracer model conservation including horizontal advection, and then compute net production and shallow remineralization rates for both sites. Our main goal was to verify if differences in these rates are consistent with the lower export rates of particulate organic carbon observed at ESTOC. Net production rates computed below the mixed layer to 110 m from April to December for oxygen, dissolved inorganic carbon and nitrate at BATS (1.34±0.79 mol O 2 m −2 , −1.73±0.52 mol C m −2 and −125±36 mmol N m −2 ) were slightly higher for oxygen and carbon compared to ESTOC (1.03±0.62 mol O 2 m −2 , −1.42±0.30 mol C m −2 and −213±56 mmol N m −2 ), although the differences were not statistically significant. Shallow remineralization rates between 110 and 250 m computed at ESTOC (−3.9±1.0 mol O 2 m −2 , 1.53±0.43 mol C m −2 and 38±155 mmol N m −2 ) were statistically higher for oxygen compared to BATS (−1.81±0.37 mol O 2 m −2 , 1.52±0.30 mol C m −2 and 147±43 mmol N m −2 ). The lateral advective flux divergence of tracers, which was more significant at ESTOC, was responsible for the differences in estimated oxygen remineralization rates between both stations. According to these results, the differences in net production and shallow remineralization cannot fully explain the differences in the flux of sinking organic matter observed between both stations, suggesting an additional consumption of non-sinking organic matter at ESTOC. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Biogeosciences 9 8 2831 2846 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 B. Fernández-Castro L. Anderson E. Marañón S. Neuer B. Ausín M. González-Dávila J. M. Santana-Casiano A. Cianca R. Santana O. LLinás M. J. Rueda B. Mouriño-Carballido Regional differences in modelled net production and shallow remineralization in the North Atlantic subtropical gyre |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
We used 5-yr concomitant data of tracer distribution from the BATS (Bermuda Time-series Study) and ESTOC (European Station for Time-Series in the Ocean, Canary Islands) sites to build a 1-D tracer model conservation including horizontal advection, and then compute net production and shallow remineralization rates for both sites. Our main goal was to verify if differences in these rates are consistent with the lower export rates of particulate organic carbon observed at ESTOC. Net production rates computed below the mixed layer to 110 m from April to December for oxygen, dissolved inorganic carbon and nitrate at BATS (1.34±0.79 mol O 2 m −2 , −1.73±0.52 mol C m −2 and −125±36 mmol N m −2 ) were slightly higher for oxygen and carbon compared to ESTOC (1.03±0.62 mol O 2 m −2 , −1.42±0.30 mol C m −2 and −213±56 mmol N m −2 ), although the differences were not statistically significant. Shallow remineralization rates between 110 and 250 m computed at ESTOC (−3.9±1.0 mol O 2 m −2 , 1.53±0.43 mol C m −2 and 38±155 mmol N m −2 ) were statistically higher for oxygen compared to BATS (−1.81±0.37 mol O 2 m −2 , 1.52±0.30 mol C m −2 and 147±43 mmol N m −2 ). The lateral advective flux divergence of tracers, which was more significant at ESTOC, was responsible for the differences in estimated oxygen remineralization rates between both stations. According to these results, the differences in net production and shallow remineralization cannot fully explain the differences in the flux of sinking organic matter observed between both stations, suggesting an additional consumption of non-sinking organic matter at ESTOC. |
format |
Article in Journal/Newspaper |
author |
B. Fernández-Castro L. Anderson E. Marañón S. Neuer B. Ausín M. González-Dávila J. M. Santana-Casiano A. Cianca R. Santana O. LLinás M. J. Rueda B. Mouriño-Carballido |
author_facet |
B. Fernández-Castro L. Anderson E. Marañón S. Neuer B. Ausín M. González-Dávila J. M. Santana-Casiano A. Cianca R. Santana O. LLinás M. J. Rueda B. Mouriño-Carballido |
author_sort |
B. Fernández-Castro |
title |
Regional differences in modelled net production and shallow remineralization in the North Atlantic subtropical gyre |
title_short |
Regional differences in modelled net production and shallow remineralization in the North Atlantic subtropical gyre |
title_full |
Regional differences in modelled net production and shallow remineralization in the North Atlantic subtropical gyre |
title_fullStr |
Regional differences in modelled net production and shallow remineralization in the North Atlantic subtropical gyre |
title_full_unstemmed |
Regional differences in modelled net production and shallow remineralization in the North Atlantic subtropical gyre |
title_sort |
regional differences in modelled net production and shallow remineralization in the north atlantic subtropical gyre |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/bg-9-2831-2012 https://doaj.org/article/38362809ab5f461baba7b93059d11ea9 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Biogeosciences, Vol 9, Iss 8, Pp 2831-2846 (2012) |
op_relation |
http://www.biogeosciences.net/9/2831/2012/bg-9-2831-2012.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-9-2831-2012 1726-4170 1726-4189 https://doaj.org/article/38362809ab5f461baba7b93059d11ea9 |
op_doi |
https://doi.org/10.5194/bg-9-2831-2012 |
container_title |
Biogeosciences |
container_volume |
9 |
container_issue |
8 |
container_start_page |
2831 |
op_container_end_page |
2846 |
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1766134811026522112 |