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CO2 partial pressur...
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Valerio, Aline M.Natl Inst Space Res, Brazil
(författare)
CO2 partial pressure and fluxes in the Amazon River plume using in situ and remote sensing data
- Artikel/kapitelEngelska2021
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PERGAMON-ELSEVIER SCIENCE LTD,2021
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Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:liu-174386
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-174386URI
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https://doi.org/10.1016/j.csr.2021.104348DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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Funding Agencies|Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior -Brazil (CAPES)CAPES [001]; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)National Council for Scientific and Technological Development (CNPq) [309684/2018-8]; Gordon and Betty Moore Foundation Marine Microbial Initiative River-Ocean Continuum of the Amazon project (GBMF) [2293, 2928]; Sao Paulo Research FoundationFundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [FAPESP 2018/18491-4]; US National Science FoundationNational Science Foundation (NSF) [DEB1754317]
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Estimations of the global carbon budget include a quantitative understanding of the evolving processes that occur along river-to-ocean gradients. However, high spatiotemporal resolution observations of these processes are limited. Here we present in situ measurements of the partial pressure of CO2 (pCO(2)) made through the Amazon River plume (ARP) during different discharge seasons, from 2010 to 2012. We evaluated the spatiotemporal distribution of pCO(2) using Soil Moisture and Ocean Salinity (SMOS) satellite observations for each hydrologic period in the ARP. Regression models were used to estimate pCO(2) at the ARP for the period of 2010-2014. From these distributions we calculated sea-air gas exchange of CO2 between the plume waters and the atmosphere (F-co2(sea)). Intra-annual variability of Fseaco(2) was related to discharge at the river mouth and ocean currents as well as trade winds in the plume. Climatic events during the study period had a significant impact on the Fsea co(2). Including the plume area closer to the river mouth makes the ARP a net source of CO2 with an annual net sea-air flux of 8.6 +/- 7.1 Tg C y(-1) from 2011 to 2014.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Kampel, MiltonNatl Inst Space Res, Brazil
(författare)
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Ward, Nicholas D.Pacif Northwest Natl Lab, WA USA; Univ Washington, WA 98195 USA
(författare)
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Sawakuchi, HenriqueLinköpings universitet,Tema Miljöförändring,Filosofiska fakulteten(Swepub:liu)henol98
(författare)
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Cunha, Alan C.Univ Fed Amapa, Brazil
(författare)
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Richey, Jeffrey E.Univ Washington, WA 98195 USA
(författare)
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Natl Inst Space Res, BrazilPacif Northwest Natl Lab, WA USA; Univ Washington, WA 98195 USA
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Continental Shelf Research: PERGAMON-ELSEVIER SCIENCE LTD2150278-43431873-6955
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