Sökning: onr:"swepub:oai:DiVA.org:su-228071" > Central Arctic Ocea...
Fältnamn | Indikatorer | Metadata |
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000 | 06536naa a2200649 4500 | |
001 | oai:DiVA.org:su-228071 | |
003 | SwePub | |
008 | 240508s2024 | |||||||||||000 ||eng| | |
009 | oai:research.chalmers.se:2cbcd29d-229c-4660-bbdc-73c95524c503 | |
009 | oai:gup.ub.gu.se/336750 | |
009 | oai:DiVA.org:uu-522807 | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-2280712 URI |
024 | 7 | a https://doi.org/10.5194/bg-21-671-20242 DOI |
024 | 7 | a https://research.chalmers.se/publication/5402322 URI |
024 | 7 | a https://gup.ub.gu.se/publication/3367502 URI |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-5228072 URI |
040 | a (SwePub)sud (SwePub)cthd (SwePub)gud (SwePub)uu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Prytherch, John,d 1980-u Stockholms universitet,Meteorologiska institutionen (MISU),Bolincentret för klimatforskning (tills m KTH & SMHI),Uppsala University, Sweden,Uppsala universitet,Stockholm University,Luft-, vatten- och landskapslära,Department of Meteorology, Stockholm University, Stockholm, 10691, Sweden; Bolin Centre for Climate Research, Stockholm, 10691, Sweden4 aut0 (Swepub:uu)johpr361 |
245 | 1 0 | a Central Arctic Ocean surface-atmosphere exchange of CO2 and CH4 constrained by direct measurements |
264 | 1 | b Copernicus Publications,c 2024 |
338 | a print2 rdacarrier | |
520 | a The central Arctic Ocean (CAO) plays an important role in the global carbon cycle, but the current and future exchange of the climate-forcing trace gases methane (CH4) and carbon dioxide (CO2) between the CAO and the atmosphere is highly uncertain. In particular, there are very few observations of near-surface gas concentrations or direct air-sea CO2 flux estimates and no previously reported direct air-sea CH4 flux estimates from the CAO. Furthermore, the effect of sea ice on the exchange is not well understood. We present direct measurements of the air-sea flux of CH4 and CO2, as well as air-snow fluxes of CO2 in the summertime CAO north of 82.5 N from the Synoptic Arctic Survey (SAS) expedition carried out on the Swedish icebreaker Oden in 2021. Measurements of air-sea CH4 and CO2 flux were made using floating chambers deployed in leads accessed from sea ice and from the side of Oden, and air-snow fluxes were determined from chambers deployed on sea ice. Gas transfer velocities determined from fluxes and surface-water-dissolved gas concentrations exhibited a weaker wind speed dependence than existing parameterisations, with a median sea-ice lead gas transfer rate of 2.5cmh-1 applicable over the observed 10m wind speed range (1-11ms-1). The average observed air-sea CO2 flux was -7.6mmolm-2d-1, and the average air-snow CO2 flux was -1.1mmolm-2d-1. Extrapolating these fluxes and the corresponding sea-ice concentrations gives an August and September flux for the CAO of -1.75mmolm-2d-1, within the range of previous indirect estimates. The average observed air-sea CH4 flux of 3.5μmolm-2d-1, accounting for sea-ice concentration, equates to an August and September CAO flux of 0.35μmolm-2d-1, lower than previous estimates and implying that the CAO is a very small (‰ 1%) contributor to the Arctic flux of CH4 to the atmosphere. | |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Meteorologi och atmosfärforskning0 (SwePub)105082 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Meteorology and Atmospheric Sciences0 (SwePub)105082 hsv//eng |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Oceanografi, hydrologi och vattenresurser0 (SwePub)105092 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Oceanography, Hydrology and Water Resources0 (SwePub)105092 hsv//eng |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geokemi0 (SwePub)105062 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geochemistry0 (SwePub)105062 hsv//eng |
653 | a air-sea interaction | |
653 | a carbon cycle | |
653 | a carbon dioxide | |
653 | a concentration (composition) | |
653 | a methane | |
653 | a sea ice | |
700 | 1 | a Murto, Sonja,d 1992-u Stockholms universitet,Meteorologiska institutionen (MISU),Bolincentret för klimatforskning (tills m KTH & SMHI),Stockholm University4 aut0 (Swepub:su)somu9760 |
700 | 1 | a Brown, Ianu Plymouth Marine Laboratory4 aut |
700 | 1 | a Ulfsbo, Adam,d 1985u Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences4 aut0 (Swepub:gu)xulfad |
700 | 1 | a Thornton, Brett F.,d 1975-u Stockholms universitet,Bolincentret för klimatforskning (tills m KTH & SMHI),Institutionen för geologiska vetenskaper,Stockholm University4 aut0 (Swepub:su)brtho |
700 | 1 | a Brüchert, Volker,d 1965-u Stockholms universitet,Institutionen för geologiska vetenskaper,Bolincentret för klimatforskning (tills m KTH & SMHI),Stockholm University4 aut0 (Swepub:su)vbruc |
700 | 1 | a Tjernström, Michael,d 1955-u Stockholms universitet,Meteorologiska institutionen (MISU),Bolincentret för klimatforskning (tills m KTH & SMHI),Stockholm University4 aut0 (Swepub:su)tjern |
700 | 1 | a Lunde Hermansson, Anna,d 1987u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)annaher |
700 | 1 | a Nylund, Amanda,d 1989u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)nylunda |
700 | 1 | a Holthusen, Lina A.u Helmholtz Zentrum,Helmholtz Center,Carl von Ossietzky Universität Oldenburg,The Carl von Ossietzky University of Oldenburg4 aut |
710 | 2 | a Stockholms universitetb Meteorologiska institutionen (MISU)4 org |
773 | 0 | t Biogeosciencesd : Copernicus Publicationsg 21:2, s. 671-688q 21:2<671-688x 1726-4170x 1726-4189 |
856 | 4 | u https://doi.org/10.5194/bg-21-671-2024y Fulltext |
856 | 4 | u https://research.chalmers.se/publication/540232/file/540232_Fulltext.pdfx primaryx freey FULLTEXT |
856 | 4 | u https://uu.diva-portal.org/smash/get/diva2:1836550/FULLTEXT02.pdfx primaryx Raw objecty fulltext:print |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-228071 |
856 | 4 8 | u https://doi.org/10.5194/bg-21-671-2024 |
856 | 4 8 | u https://research.chalmers.se/publication/540232 |
856 | 4 8 | u https://gup.ub.gu.se/publication/336750 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-522807 |
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