How does the Pinatubo eruption influence our understanding of long-term changes in ocean biogeochemistry?
Pinatubo erupted during the first decadal survey of ocean biogeochemistry, embedding its climate fingerprint into foundational ocean biogeochemical observations and complicating the interpretation of long-term biogeochemical change. Here, we quantify the influence of the Pinatubo climate perturbatio...
Published in: | Geophysical Research Letters |
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Online Access: | https://doi.org/10.1029/2023GL105431 |
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ftncar:oai:drupal-site.org:articles_26942 2024-04-14T08:15:50+00:00 How does the Pinatubo eruption influence our understanding of long-term changes in ocean biogeochemistry? Olivarez, Holly C. (author) Lovenduski, Nicole S. (author) Eddebbar, Yassir A. (author) Fay, Amanda R. (author) McKinley, Galen A. (author) Levy, Michael N. (author) Long, Matthew C. (author) 2024-01-28 https://doi.org/10.1029/2023GL105431 en eng Geophysical Research Letters--Geophysical Research Letters--0094-8276--1944-8007 LENS and NoPin (NP) ensemble means for apparent oxygen utilization (AOU), anthropogenic and preindustrial carbon, pCFC-12, and ideal age from Olivarez et al. (2023)--10.5281/zenodo.8145484 articles:26942 doi:10.1029/2023GL105431 ark:/85065/d7tb1c2v Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. article Text 2024 ftncar https://doi.org/10.1029/2023GL105431 2024-03-21T18:00:26Z Pinatubo erupted during the first decadal survey of ocean biogeochemistry, embedding its climate fingerprint into foundational ocean biogeochemical observations and complicating the interpretation of long-term biogeochemical change. Here, we quantify the influence of the Pinatubo climate perturbation on externally forced decadal and multi-decadal changes in key ocean biogeochemical quantities using a large ensemble simulation of the Community Earth System Model designed to isolate the effects of Pinatubo, which cleanly captures the ocean biogeochemical response to the eruption. We find increased uptake of apparent oxygen utilization and preindustrial carbon over 1993-2003. Nearly 100% of the forced response in these quantities are attributable to Pinatubo. The eruption caused enhanced ventilation of the North Atlantic, as evidenced by deep ocean chlorofluorocarbon changes that appear 10-15 years after the eruption. Our results help contextualize observed change and contribute to improved constraints on uncertainty in the global carbon budget and ocean deoxygenation. 1852977 1948728 Article in Journal/Newspaper North Atlantic OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Geophysical Research Letters 51 2 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
Pinatubo erupted during the first decadal survey of ocean biogeochemistry, embedding its climate fingerprint into foundational ocean biogeochemical observations and complicating the interpretation of long-term biogeochemical change. Here, we quantify the influence of the Pinatubo climate perturbation on externally forced decadal and multi-decadal changes in key ocean biogeochemical quantities using a large ensemble simulation of the Community Earth System Model designed to isolate the effects of Pinatubo, which cleanly captures the ocean biogeochemical response to the eruption. We find increased uptake of apparent oxygen utilization and preindustrial carbon over 1993-2003. Nearly 100% of the forced response in these quantities are attributable to Pinatubo. The eruption caused enhanced ventilation of the North Atlantic, as evidenced by deep ocean chlorofluorocarbon changes that appear 10-15 years after the eruption. Our results help contextualize observed change and contribute to improved constraints on uncertainty in the global carbon budget and ocean deoxygenation. 1852977 1948728 |
author2 |
Olivarez, Holly C. (author) Lovenduski, Nicole S. (author) Eddebbar, Yassir A. (author) Fay, Amanda R. (author) McKinley, Galen A. (author) Levy, Michael N. (author) Long, Matthew C. (author) |
format |
Article in Journal/Newspaper |
title |
How does the Pinatubo eruption influence our understanding of long-term changes in ocean biogeochemistry? |
spellingShingle |
How does the Pinatubo eruption influence our understanding of long-term changes in ocean biogeochemistry? |
title_short |
How does the Pinatubo eruption influence our understanding of long-term changes in ocean biogeochemistry? |
title_full |
How does the Pinatubo eruption influence our understanding of long-term changes in ocean biogeochemistry? |
title_fullStr |
How does the Pinatubo eruption influence our understanding of long-term changes in ocean biogeochemistry? |
title_full_unstemmed |
How does the Pinatubo eruption influence our understanding of long-term changes in ocean biogeochemistry? |
title_sort |
how does the pinatubo eruption influence our understanding of long-term changes in ocean biogeochemistry? |
publishDate |
2024 |
url |
https://doi.org/10.1029/2023GL105431 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Geophysical Research Letters--Geophysical Research Letters--0094-8276--1944-8007 LENS and NoPin (NP) ensemble means for apparent oxygen utilization (AOU), anthropogenic and preindustrial carbon, pCFC-12, and ideal age from Olivarez et al. (2023)--10.5281/zenodo.8145484 articles:26942 doi:10.1029/2023GL105431 ark:/85065/d7tb1c2v |
op_rights |
Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
op_doi |
https://doi.org/10.1029/2023GL105431 |
container_title |
Geophysical Research Letters |
container_volume |
51 |
container_issue |
2 |
_version_ |
1796314286991081472 |