Ocean acidification trends and carbonate system dynamics across the North Atlantic subpolar gyre water masses during 2009–2019
<p>The CO<span class="inline-formula"><sub>2</sub></span>–carbonate system dynamics in the North Atlantic subpolar gyre (NASPG) were evaluated between 2009 and 2019. Data were collected aboard eight summer cruises through the Climate and Ocean: Variability, Pr...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2024-12-01
|
| Series: | Biogeosciences |
| Online Access: | https://bg.copernicus.org/articles/21/5561/2024/bg-21-5561-2024.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846126084627628032 |
|---|---|
| author | D. Curbelo-Hernández F. F. Pérez M. González-Dávila S. V. Gladyshev A. G. González D. González-Santana A. Velo A. Sokov J. M. Santana-Casiano |
| author_facet | D. Curbelo-Hernández F. F. Pérez M. González-Dávila S. V. Gladyshev A. G. González D. González-Santana A. Velo A. Sokov J. M. Santana-Casiano |
| author_sort | D. Curbelo-Hernández |
| collection | DOAJ |
| description | <p>The CO<span class="inline-formula"><sub>2</sub></span>–carbonate system dynamics in the North Atlantic subpolar gyre (NASPG) were evaluated between 2009 and 2019. Data were collected aboard eight summer cruises through the Climate and Ocean: Variability, Predictability and Change (CLIVAR) 59.5° N section. The ocean acidification (OA) patterns and the reduction in the saturation state of calcite (<span class="inline-formula">Ω<sub>Ca</sub></span>) and aragonite (<span class="inline-formula">Ω<sub>Arag</sub></span>) in response to the increasing anthropogenic CO<span class="inline-formula"><sub>2</sub></span> (<span class="inline-formula"><i>C</i><sub>ant</sub></span>) were assessed within the Irminger, Iceland, and Rockall basins during a poorly assessed decade in which the physical patterns reversed in comparison with previous well-known periods. The observed cooling, freshening, and enhanced ventilation increased the interannual rate of accumulation of <span class="inline-formula"><i>C</i><sub>ant</sub></span> in the interior ocean by 50 %–86 % and the OA rates by close to 10 %. The OA trends were 0.0013–0.0032 units yr<span class="inline-formula"><sup>−1</sup></span> in the Irminger and Iceland basins and 0.0006–0.0024 units yr<span class="inline-formula"><sup>−1</sup></span> in the Rockall Trough, causing a decline in <span class="inline-formula">Ω<sub>Ca</sub></span> and <span class="inline-formula">Ω<sub>Arag</sub></span> of 0.004–0.021 and 0.003–0.0013 units yr<span class="inline-formula"><sup>−1</sup></span>, respectively. The <span class="inline-formula"><i>C</i><sub>ant</sub></span>-driven rise in total inorganic carbon (<span class="inline-formula"><i>C</i><sub>T</sub></span>) was the main driver of the OA (contributed by 53 %–68 % in upper layers and <span class="inline-formula"><i>></i></span> 82 % toward the interior ocean) and the reduction in <span class="inline-formula">Ω<sub>Ca</sub></span> and <span class="inline-formula">Ω<sub>Arag</sub></span> (<span class="inline-formula"><i>></i></span> 64 %). The transient decrease in temperature, salinity, and <span class="inline-formula"><i>A</i><sub>T</sub></span> collectively counteracts the <span class="inline-formula"><i>C</i><sub>T</sub></span>-driven acidification by 45 %–85 % in the upper layers and in the shallow Rockall Trough and by <span class="inline-formula"><i><</i></span> 10 % in the interior ocean. The present investigation reports the acceleration of the OA within the NASPG and expands knowledge about the future state of the ocean.</p> |
| format | Article |
| id | doaj-art-f7627d73f2164b778beb2f4b241f74e5 |
| institution | Kabale University |
| issn | 1726-4170 1726-4189 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Biogeosciences |
| spelling | doaj-art-f7627d73f2164b778beb2f4b241f74e52024-12-13T06:47:10ZengCopernicus PublicationsBiogeosciences1726-41701726-41892024-12-01215561558910.5194/bg-21-5561-2024Ocean acidification trends and carbonate system dynamics across the North Atlantic subpolar gyre water masses during 2009–2019D. Curbelo-Hernández0F. F. Pérez1M. González-Dávila2S. V. Gladyshev3A. G. González4D. González-Santana5A. Velo6A. Sokov7J. M. Santana-Casiano8Instituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, SpainInstituto de Investigaciones Marinas (IIM), CSIC, Vigo, SpainInstituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, SpainP. P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russian FederationInstituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, SpainInstituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, SpainInstituto de Investigaciones Marinas (IIM), CSIC, Vigo, SpainP. P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russian FederationInstituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain<p>The CO<span class="inline-formula"><sub>2</sub></span>–carbonate system dynamics in the North Atlantic subpolar gyre (NASPG) were evaluated between 2009 and 2019. Data were collected aboard eight summer cruises through the Climate and Ocean: Variability, Predictability and Change (CLIVAR) 59.5° N section. The ocean acidification (OA) patterns and the reduction in the saturation state of calcite (<span class="inline-formula">Ω<sub>Ca</sub></span>) and aragonite (<span class="inline-formula">Ω<sub>Arag</sub></span>) in response to the increasing anthropogenic CO<span class="inline-formula"><sub>2</sub></span> (<span class="inline-formula"><i>C</i><sub>ant</sub></span>) were assessed within the Irminger, Iceland, and Rockall basins during a poorly assessed decade in which the physical patterns reversed in comparison with previous well-known periods. The observed cooling, freshening, and enhanced ventilation increased the interannual rate of accumulation of <span class="inline-formula"><i>C</i><sub>ant</sub></span> in the interior ocean by 50 %–86 % and the OA rates by close to 10 %. The OA trends were 0.0013–0.0032 units yr<span class="inline-formula"><sup>−1</sup></span> in the Irminger and Iceland basins and 0.0006–0.0024 units yr<span class="inline-formula"><sup>−1</sup></span> in the Rockall Trough, causing a decline in <span class="inline-formula">Ω<sub>Ca</sub></span> and <span class="inline-formula">Ω<sub>Arag</sub></span> of 0.004–0.021 and 0.003–0.0013 units yr<span class="inline-formula"><sup>−1</sup></span>, respectively. The <span class="inline-formula"><i>C</i><sub>ant</sub></span>-driven rise in total inorganic carbon (<span class="inline-formula"><i>C</i><sub>T</sub></span>) was the main driver of the OA (contributed by 53 %–68 % in upper layers and <span class="inline-formula"><i>></i></span> 82 % toward the interior ocean) and the reduction in <span class="inline-formula">Ω<sub>Ca</sub></span> and <span class="inline-formula">Ω<sub>Arag</sub></span> (<span class="inline-formula"><i>></i></span> 64 %). The transient decrease in temperature, salinity, and <span class="inline-formula"><i>A</i><sub>T</sub></span> collectively counteracts the <span class="inline-formula"><i>C</i><sub>T</sub></span>-driven acidification by 45 %–85 % in the upper layers and in the shallow Rockall Trough and by <span class="inline-formula"><i><</i></span> 10 % in the interior ocean. The present investigation reports the acceleration of the OA within the NASPG and expands knowledge about the future state of the ocean.</p>https://bg.copernicus.org/articles/21/5561/2024/bg-21-5561-2024.pdf |
| spellingShingle | D. Curbelo-Hernández F. F. Pérez M. González-Dávila S. V. Gladyshev A. G. González D. González-Santana A. Velo A. Sokov J. M. Santana-Casiano Ocean acidification trends and carbonate system dynamics across the North Atlantic subpolar gyre water masses during 2009–2019 Biogeosciences |
| title | Ocean acidification trends and carbonate system dynamics across the North Atlantic subpolar gyre water masses during 2009–2019 |
| title_full | Ocean acidification trends and carbonate system dynamics across the North Atlantic subpolar gyre water masses during 2009–2019 |
| title_fullStr | Ocean acidification trends and carbonate system dynamics across the North Atlantic subpolar gyre water masses during 2009–2019 |
| title_full_unstemmed | Ocean acidification trends and carbonate system dynamics across the North Atlantic subpolar gyre water masses during 2009–2019 |
| title_short | Ocean acidification trends and carbonate system dynamics across the North Atlantic subpolar gyre water masses during 2009–2019 |
| title_sort | ocean acidification trends and carbonate system dynamics across the north atlantic subpolar gyre water masses during 2009 2019 |
| url | https://bg.copernicus.org/articles/21/5561/2024/bg-21-5561-2024.pdf |
| work_keys_str_mv | AT dcurbelohernandez oceanacidificationtrendsandcarbonatesystemdynamicsacrossthenorthatlanticsubpolargyrewatermassesduring20092019 AT ffperez oceanacidificationtrendsandcarbonatesystemdynamicsacrossthenorthatlanticsubpolargyrewatermassesduring20092019 AT mgonzalezdavila oceanacidificationtrendsandcarbonatesystemdynamicsacrossthenorthatlanticsubpolargyrewatermassesduring20092019 AT svgladyshev oceanacidificationtrendsandcarbonatesystemdynamicsacrossthenorthatlanticsubpolargyrewatermassesduring20092019 AT aggonzalez oceanacidificationtrendsandcarbonatesystemdynamicsacrossthenorthatlanticsubpolargyrewatermassesduring20092019 AT dgonzalezsantana oceanacidificationtrendsandcarbonatesystemdynamicsacrossthenorthatlanticsubpolargyrewatermassesduring20092019 AT avelo oceanacidificationtrendsandcarbonatesystemdynamicsacrossthenorthatlanticsubpolargyrewatermassesduring20092019 AT asokov oceanacidificationtrendsandcarbonatesystemdynamicsacrossthenorthatlanticsubpolargyrewatermassesduring20092019 AT jmsantanacasiano oceanacidificationtrendsandcarbonatesystemdynamicsacrossthenorthatlanticsubpolargyrewatermassesduring20092019 |