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Variation of pCO(2) concentrations induced by tropical cyclones “Wind-Pump” in the middle-latitude surface oceans: A comparative study

The Bermuda Testbed Mooring (BTM) and Bay of Bengal Ocean Acidification (BOBOA) mooring measurements were used to identify changes in the partial pressure of CO(2) at the sea surface (pCO(2sea)) and air-sea CO(2) fluxes (F(CO2)) associated with passage of two tropical cyclones (TCs), Florence and Hu...

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Autores principales: Ye, Haijun, Morozov, Evgeny, Tang, Danling, Wang, Sufeng, Liu, Yupeng, Li, Ying, Tang, Shilin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7092959/
https://www.ncbi.nlm.nih.gov/pubmed/32208420
http://dx.doi.org/10.1371/journal.pone.0226189
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author Ye, Haijun
Morozov, Evgeny
Tang, Danling
Wang, Sufeng
Liu, Yupeng
Li, Ying
Tang, Shilin
author_facet Ye, Haijun
Morozov, Evgeny
Tang, Danling
Wang, Sufeng
Liu, Yupeng
Li, Ying
Tang, Shilin
author_sort Ye, Haijun
collection PubMed
description The Bermuda Testbed Mooring (BTM) and Bay of Bengal Ocean Acidification (BOBOA) mooring measurements were used to identify changes in the partial pressure of CO(2) at the sea surface (pCO(2sea)) and air-sea CO(2) fluxes (F(CO2)) associated with passage of two tropical cyclones (TCs), Florence and Hudhud. TC Florence passed about 165 km off the BTM mooring site with strong wind speeds of 24.8 m s(–1) and translation speed of 7.23 m s(–1). TC Hudhud passed about 178 km off the BOBOA mooring site with wind speeds of 14.0 m s(–1) and translation speed of 2.58 m s(–1). The present study examined the effect of temperature, salinity, dissolved inorganic carbon (DIC), total alkalinity (TA), air-sea CO(2) flux, and phytoplankton chlorophyll a change on pCO(2sea) as a response to TCs. Enhanced mixed layer depths were observed due to TCs-induced vertical mixing at both mooring sites. Decreased pCO(2sea) (–15.16±5.60 μatm) at the BTM mooring site and enhanced pCO(2sea) (14.81±7.03 μatm) at the BOBOA mooring site were observed after the passage of Florence and Hudhud, respectively. Both DIC and TA are strongly correlated with salinity in the upper layer of the isothermal layer depth (ILD). Strong (weak) vertical gradient in salinity is accompanied by strong (weak) vertical gradients in DIC and TA. Strong vertical salinity gradient in the upper layer of the ILD (0.031 psu m(–1)), that supply much salinity, dissolved inorganic carbon and total alkalinity from the thermocline was the cause of the increased pCO(2sea) in the BOBOA mooring water. Weak vertical salinity gradient in the upper layer of the ILD (0.003 psu m(–1)) was responsible for decreasing pCO(2sea) in the BTM mooring water. The results of this study showed that the vertical salinity gradient in the upper layer of the ILD is a good indicator of the pCO(2sea) variation after the passages of TCs.
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spelling pubmed-70929592020-04-01 Variation of pCO(2) concentrations induced by tropical cyclones “Wind-Pump” in the middle-latitude surface oceans: A comparative study Ye, Haijun Morozov, Evgeny Tang, Danling Wang, Sufeng Liu, Yupeng Li, Ying Tang, Shilin PLoS One Research Article The Bermuda Testbed Mooring (BTM) and Bay of Bengal Ocean Acidification (BOBOA) mooring measurements were used to identify changes in the partial pressure of CO(2) at the sea surface (pCO(2sea)) and air-sea CO(2) fluxes (F(CO2)) associated with passage of two tropical cyclones (TCs), Florence and Hudhud. TC Florence passed about 165 km off the BTM mooring site with strong wind speeds of 24.8 m s(–1) and translation speed of 7.23 m s(–1). TC Hudhud passed about 178 km off the BOBOA mooring site with wind speeds of 14.0 m s(–1) and translation speed of 2.58 m s(–1). The present study examined the effect of temperature, salinity, dissolved inorganic carbon (DIC), total alkalinity (TA), air-sea CO(2) flux, and phytoplankton chlorophyll a change on pCO(2sea) as a response to TCs. Enhanced mixed layer depths were observed due to TCs-induced vertical mixing at both mooring sites. Decreased pCO(2sea) (–15.16±5.60 μatm) at the BTM mooring site and enhanced pCO(2sea) (14.81±7.03 μatm) at the BOBOA mooring site were observed after the passage of Florence and Hudhud, respectively. Both DIC and TA are strongly correlated with salinity in the upper layer of the isothermal layer depth (ILD). Strong (weak) vertical gradient in salinity is accompanied by strong (weak) vertical gradients in DIC and TA. Strong vertical salinity gradient in the upper layer of the ILD (0.031 psu m(–1)), that supply much salinity, dissolved inorganic carbon and total alkalinity from the thermocline was the cause of the increased pCO(2sea) in the BOBOA mooring water. Weak vertical salinity gradient in the upper layer of the ILD (0.003 psu m(–1)) was responsible for decreasing pCO(2sea) in the BTM mooring water. The results of this study showed that the vertical salinity gradient in the upper layer of the ILD is a good indicator of the pCO(2sea) variation after the passages of TCs. Public Library of Science 2020-03-24 /pmc/articles/PMC7092959/ /pubmed/32208420 http://dx.doi.org/10.1371/journal.pone.0226189 Text en © 2020 Ye et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Ye, Haijun
Morozov, Evgeny
Tang, Danling
Wang, Sufeng
Liu, Yupeng
Li, Ying
Tang, Shilin
Variation of pCO(2) concentrations induced by tropical cyclones “Wind-Pump” in the middle-latitude surface oceans: A comparative study
title Variation of pCO(2) concentrations induced by tropical cyclones “Wind-Pump” in the middle-latitude surface oceans: A comparative study
title_full Variation of pCO(2) concentrations induced by tropical cyclones “Wind-Pump” in the middle-latitude surface oceans: A comparative study
title_fullStr Variation of pCO(2) concentrations induced by tropical cyclones “Wind-Pump” in the middle-latitude surface oceans: A comparative study
title_full_unstemmed Variation of pCO(2) concentrations induced by tropical cyclones “Wind-Pump” in the middle-latitude surface oceans: A comparative study
title_short Variation of pCO(2) concentrations induced by tropical cyclones “Wind-Pump” in the middle-latitude surface oceans: A comparative study
title_sort variation of pco(2) concentrations induced by tropical cyclones “wind-pump” in the middle-latitude surface oceans: a comparative study
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7092959/
https://www.ncbi.nlm.nih.gov/pubmed/32208420
http://dx.doi.org/10.1371/journal.pone.0226189
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