Significant role of physical transport in the marine carbon monoxide (CO) cycle: observations in the East Sea (Sea of Japan), the western North Pacific, and the Bering Sea in summer

<p>The carbon monoxide (CO) in the marine boundary layer and in the surface waters and water column were measured along the western limb of the North Pacific from the Korean Peninsula to Alaska, USA, in summer 2012. The observation allows us to estimate the CO budgets in the surface mixed laye...

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Main Authors: Y. S. Kwon, T. S. Rhee, H.-C. Kim, H.-W. Kang
Format: Article
Language:English
Published: Copernicus Publications 2024-04-01
Series:Biogeosciences
Online Access:https://bg.copernicus.org/articles/21/1847/2024/bg-21-1847-2024.pdf
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author Y. S. Kwon
Y. S. Kwon
T. S. Rhee
H.-C. Kim
H.-W. Kang
author_facet Y. S. Kwon
Y. S. Kwon
T. S. Rhee
H.-C. Kim
H.-W. Kang
author_sort Y. S. Kwon
collection DOAJ
description <p>The carbon monoxide (CO) in the marine boundary layer and in the surface waters and water column were measured along the western limb of the North Pacific from the Korean Peninsula to Alaska, USA, in summer 2012. The observation allows us to estimate the CO budgets in the surface mixed layer of the three distinct regimes: the East Sea (Sea of Japan) (ES), the Northwest Pacific (NP), and the Bering Sea (BS). CO photochemical production rates were 56(<span class="inline-formula">±</span>15) <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>, 27(<span class="inline-formula">±</span>3) <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>, and 26(<span class="inline-formula">±</span>2) <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>, while microbial consumption rates were 30(<span class="inline-formula">±</span>8) <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>, 24(<span class="inline-formula">±</span>5) <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>, and 63(<span class="inline-formula">±</span>19) <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span> in the ES, NP, and BS, respectively, both of which are the dominant components of the CO budget in the ocean. The other two known components, air–sea gas exchange and downward mixing, remained negligible (less than 3 <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>) in all regimes. While the CO budget in the surface mixed layer of the NP was in balance, the CO production surpassed the consumption in the ES, and vice versa in the BS. The significant imbalances in the CO budget in the ES (25 <span class="inline-formula">±</span> 17 <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>) and the BS (40 <span class="inline-formula">±</span> 19 <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>) are suggested to be compensated by external physical transport such as lateral advection, subduction, or ventilation. Notably, the increase in the CO column burden correlated with the imbalance in the CO budget, highlighting the significant role of the physical transport in the marine CO cycles. Our observation, for the first time, underscores the potential importance of physical transport in driving CO dynamics in the marine environment.</p>
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spelling doaj.art-3fde56f367e645a29133c8d28b2b6e4b2024-04-15T10:02:12ZengCopernicus PublicationsBiogeosciences1726-41701726-41892024-04-01211847186510.5194/bg-21-1847-2024Significant role of physical transport in the marine carbon monoxide (CO) cycle: observations in the East Sea (Sea of Japan), the western North Pacific, and the Bering Sea in summerY. S. Kwon0Y. S. Kwon1T. S. Rhee2H.-C. Kim3H.-W. Kang4Ocean Climate Response & Ecosystem Research Department, Korea Institute of Ocean Sciences and Technology, Busan, 49111, KoreaDivision of Ocean and Atmospheric Sciences, Korea Polar Research Institute, Incheon, 21990, KoreaDivision of Ocean and Atmospheric Sciences, Korea Polar Research Institute, Incheon, 21990, KoreaCenter of Remote Sensing & GIS, Korea Polar Research Institute, Incheon, 21990, KoreaOcean Climate Solutions Research Division, Korea Institute of Ocean Sciences and Technology, Busan, 49111, Korea<p>The carbon monoxide (CO) in the marine boundary layer and in the surface waters and water column were measured along the western limb of the North Pacific from the Korean Peninsula to Alaska, USA, in summer 2012. The observation allows us to estimate the CO budgets in the surface mixed layer of the three distinct regimes: the East Sea (Sea of Japan) (ES), the Northwest Pacific (NP), and the Bering Sea (BS). CO photochemical production rates were 56(<span class="inline-formula">±</span>15) <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>, 27(<span class="inline-formula">±</span>3) <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>, and 26(<span class="inline-formula">±</span>2) <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>, while microbial consumption rates were 30(<span class="inline-formula">±</span>8) <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>, 24(<span class="inline-formula">±</span>5) <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>, and 63(<span class="inline-formula">±</span>19) <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span> in the ES, NP, and BS, respectively, both of which are the dominant components of the CO budget in the ocean. The other two known components, air–sea gas exchange and downward mixing, remained negligible (less than 3 <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>) in all regimes. While the CO budget in the surface mixed layer of the NP was in balance, the CO production surpassed the consumption in the ES, and vice versa in the BS. The significant imbalances in the CO budget in the ES (25 <span class="inline-formula">±</span> 17 <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>) and the BS (40 <span class="inline-formula">±</span> 19 <span class="inline-formula">µ</span>mol m<span class="inline-formula"><sup>−2</sup></span> d<span class="inline-formula"><sup>−1</sup></span>) are suggested to be compensated by external physical transport such as lateral advection, subduction, or ventilation. Notably, the increase in the CO column burden correlated with the imbalance in the CO budget, highlighting the significant role of the physical transport in the marine CO cycles. Our observation, for the first time, underscores the potential importance of physical transport in driving CO dynamics in the marine environment.</p>https://bg.copernicus.org/articles/21/1847/2024/bg-21-1847-2024.pdf
spellingShingle Y. S. Kwon
Y. S. Kwon
T. S. Rhee
H.-C. Kim
H.-W. Kang
Significant role of physical transport in the marine carbon monoxide (CO) cycle: observations in the East Sea (Sea of Japan), the western North Pacific, and the Bering Sea in summer
Biogeosciences
title Significant role of physical transport in the marine carbon monoxide (CO) cycle: observations in the East Sea (Sea of Japan), the western North Pacific, and the Bering Sea in summer
title_full Significant role of physical transport in the marine carbon monoxide (CO) cycle: observations in the East Sea (Sea of Japan), the western North Pacific, and the Bering Sea in summer
title_fullStr Significant role of physical transport in the marine carbon monoxide (CO) cycle: observations in the East Sea (Sea of Japan), the western North Pacific, and the Bering Sea in summer
title_full_unstemmed Significant role of physical transport in the marine carbon monoxide (CO) cycle: observations in the East Sea (Sea of Japan), the western North Pacific, and the Bering Sea in summer
title_short Significant role of physical transport in the marine carbon monoxide (CO) cycle: observations in the East Sea (Sea of Japan), the western North Pacific, and the Bering Sea in summer
title_sort significant role of physical transport in the marine carbon monoxide co cycle observations in the east sea sea of japan the western north pacific and the bering sea in summer
url https://bg.copernicus.org/articles/21/1847/2024/bg-21-1847-2024.pdf
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