Ocean acidification along the 24.5°N section in the subtropical North Atlantic
Ocean acidification is directly related to increasing atmospheric CO2 levels due to human activities and the active role of the global ocean in absorbing part of this anthropogenic CO2. Here we present an assessment of the pH changes that have occurred along 24.5°N in the subtropical North Atlantic...
Published in: | Geophysical Research Letters |
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Online Access: | http://hdl.handle.net/10553/52755 https://doi.org/10.1002/2014GL062971 |
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ftunivlaspalmas:oai:https://accedacris.ulpgc.es:10553/52755 2023-05-15T17:29:57+02:00 Ocean acidification along the 24.5°N section in the subtropical North Atlantic Guallart, Elisa F. Fajar, Noelia M. Padin, Xose Antonio Vázquez-Rodríguez, Marcos Calvo, Eva Ríos, Aida F. Hernandez-Guerra, Alonso Pelejero, Carles Pérez, Fiz F. Hernandez-Guerra, Alonso Fernandez Perez, Fiz Calvo, Eva Pelejero, Carles 56180059300 55246485900 16301932800 23996033200 7101608111 7103240290 56455072400 6603910524 56598611300 4783466 3902456 1587730 2793940 599542 329342 660191 558142 145213 2015 http://hdl.handle.net/10553/52755 https://doi.org/10.1002/2014GL062971 eng eng Expedición de Circunnavegación Malaspina 2010: Cambio Global y Exploración Del Océano Global Geophysical Research Letters 0094-8276 http://hdl.handle.net/10553/52755 doi:10.1002/2014GL062971 84923536909 000349956000034 458 2 450 42 A-4747-2008 B-9001-2011 C-2618-2014 No ID Geophysical Research Letters [ISSN 0094-8276], v. 42 (2), p. 450-458 251007 Oceanografía física Seawater pH Decadal variability pH variability info:eu-repo/semantics/article Journal article 2015 ftunivlaspalmas https://doi.org/10.1002/2014GL062971 2020-01-15T00:11:16Z Ocean acidification is directly related to increasing atmospheric CO2 levels due to human activities and the active role of the global ocean in absorbing part of this anthropogenic CO2. Here we present an assessment of the pH changes that have occurred along 24.5°N in the subtropical North Atlantic through comparison of pH observations conducted in 1992 and 2011. It reveals an overall decline in pH values in the first 1000 dbar of the water column. The deconvolution of the temporal pH differences into anthropogenic and nonanthropogenic components reveals that natural variability, mostly owed to a decrease in oxygen levels in particular regions of the section, explains the vertical distribution of the larger pH decreases (up to −0.05 pH units), which are found within the permanent thermocline. The detection of long‐term trends in dissolved oxygen in the studied region gains importance for future pH projections, as these changes modulate the anthropogenically derived acidification. The anthropogenic forcing explains significant acidification deeper than 1000 dbar in the western basin, within the Deep Western Boundary Current. Article in Journal/Newspaper North Atlantic Ocean acidification Universidad de Las Palmas de Gran Canaria: Acceda Western Basin Geophysical Research Letters 42 2 450 458 |
institution |
Open Polar |
collection |
Universidad de Las Palmas de Gran Canaria: Acceda |
op_collection_id |
ftunivlaspalmas |
language |
English |
topic |
251007 Oceanografía física Seawater pH Decadal variability pH variability |
spellingShingle |
251007 Oceanografía física Seawater pH Decadal variability pH variability Guallart, Elisa F. Fajar, Noelia M. Padin, Xose Antonio Vázquez-Rodríguez, Marcos Calvo, Eva Ríos, Aida F. Hernandez-Guerra, Alonso Pelejero, Carles Pérez, Fiz F. Ocean acidification along the 24.5°N section in the subtropical North Atlantic |
topic_facet |
251007 Oceanografía física Seawater pH Decadal variability pH variability |
description |
Ocean acidification is directly related to increasing atmospheric CO2 levels due to human activities and the active role of the global ocean in absorbing part of this anthropogenic CO2. Here we present an assessment of the pH changes that have occurred along 24.5°N in the subtropical North Atlantic through comparison of pH observations conducted in 1992 and 2011. It reveals an overall decline in pH values in the first 1000 dbar of the water column. The deconvolution of the temporal pH differences into anthropogenic and nonanthropogenic components reveals that natural variability, mostly owed to a decrease in oxygen levels in particular regions of the section, explains the vertical distribution of the larger pH decreases (up to −0.05 pH units), which are found within the permanent thermocline. The detection of long‐term trends in dissolved oxygen in the studied region gains importance for future pH projections, as these changes modulate the anthropogenically derived acidification. The anthropogenic forcing explains significant acidification deeper than 1000 dbar in the western basin, within the Deep Western Boundary Current. |
author2 |
Hernandez-Guerra, Alonso Fernandez Perez, Fiz Calvo, Eva Pelejero, Carles 56180059300 55246485900 16301932800 23996033200 7101608111 7103240290 56455072400 6603910524 56598611300 4783466 3902456 1587730 2793940 599542 329342 660191 558142 145213 |
format |
Article in Journal/Newspaper |
author |
Guallart, Elisa F. Fajar, Noelia M. Padin, Xose Antonio Vázquez-Rodríguez, Marcos Calvo, Eva Ríos, Aida F. Hernandez-Guerra, Alonso Pelejero, Carles Pérez, Fiz F. |
author_facet |
Guallart, Elisa F. Fajar, Noelia M. Padin, Xose Antonio Vázquez-Rodríguez, Marcos Calvo, Eva Ríos, Aida F. Hernandez-Guerra, Alonso Pelejero, Carles Pérez, Fiz F. |
author_sort |
Guallart, Elisa F. |
title |
Ocean acidification along the 24.5°N section in the subtropical North Atlantic |
title_short |
Ocean acidification along the 24.5°N section in the subtropical North Atlantic |
title_full |
Ocean acidification along the 24.5°N section in the subtropical North Atlantic |
title_fullStr |
Ocean acidification along the 24.5°N section in the subtropical North Atlantic |
title_full_unstemmed |
Ocean acidification along the 24.5°N section in the subtropical North Atlantic |
title_sort |
ocean acidification along the 24.5°n section in the subtropical north atlantic |
publishDate |
2015 |
url |
http://hdl.handle.net/10553/52755 https://doi.org/10.1002/2014GL062971 |
geographic |
Western Basin |
geographic_facet |
Western Basin |
genre |
North Atlantic Ocean acidification |
genre_facet |
North Atlantic Ocean acidification |
op_source |
Geophysical Research Letters [ISSN 0094-8276], v. 42 (2), p. 450-458 |
op_relation |
Expedición de Circunnavegación Malaspina 2010: Cambio Global y Exploración Del Océano Global Geophysical Research Letters 0094-8276 http://hdl.handle.net/10553/52755 doi:10.1002/2014GL062971 84923536909 000349956000034 458 2 450 42 A-4747-2008 B-9001-2011 C-2618-2014 No ID |
op_doi |
https://doi.org/10.1002/2014GL062971 |
container_title |
Geophysical Research Letters |
container_volume |
42 |
container_issue |
2 |
container_start_page |
450 |
op_container_end_page |
458 |
_version_ |
1766125205935095808 |