[{"@context":"http:\/\/schema.org\/","@type":"Dataset","identifier":"https:\/\/doi.org\/10.17043\/stordalen-lakes-ch4-ebul-3","@id":"https:\/\/doi.org\/10.17043\/stordalen-lakes-ch4-ebul-3","name":"Methane bubble fluxes from subarctic lakes on the Stordalen Mire, Abisko, Northern Sweden","description":"This dataset provides measurements of the bubble flux of methane (CH\u2084), a strong climate forcing trace gas, to the atmosphere from three subarctic lakes located on the Stordalen Mire in northern Sweden.\r\n\r\nEbullition rates of gas bubbling from the lake sediments containing mostly CH\u2084 was measured with bubble traps during the ice-free seasons of 2009 to 2017. The lakes are small (surface area 0.010\u2060\u200a\u2013\u200a\u20600.17 km\u00b2) and shallow (max. depth 1.3\u2060\u200a\u2013\u200a\u20606.7 m), and are structural features of the landscape (i.e. non-thermokarst, glacial). Up to 40 bubble traps were continuously deployed across the different depth zones and sampled (emptied of gas) every 1\u2013\u200a\u20603 days to capture the erratic or variable nature of bubble gas release. CH\u2084 concentrations were measured using a gas chromatograph. Flux was computed from the CH\u2084 concentration of gas volume that had accumulated during the trap deployments. Measurements of a subset of the isotopic composition of the trapped CH\u2084 (\u03b4\u00b9\u00b3C-CH\u2084 and \u03b4\u00b2H-CH\u2084) are included as is the surface sediment temperature at the time of sampling are also included. This is a unique data set in both its spatial and temporal resolution and length.\r\n\r\nThe measurements have been used to assess the environmental drivers of CH\u2084 emissions from lakes to the atmosphere, and how emissions might change under continued Arctic warming.","url":"http:\/\/bolin.su.se\/data\/stordalen-lakes-ch4-ebul-3","keywords":["Lacustrine","Arctic carbon","Lake","Methane","Ebullution","Methane isotopes","Subarctic","Earth science > Atmosphere > Atmospheric chemistry > Carbon and hydrocarbon compounds > Methane"],"creator":{"@type":"Person","name":"Joachim Jansen, Martin Wik, Patrick Crill"},"citation":"Wik M, Crill PM, Varner RK, Bastviken D. (2013). Multiyear measurements of ebullitive methane flux from three subarctic lakes, Journal of Geophysical Research: Biogeosciences, 118, 1307\u2060\u200a\u2013\u200a\u20601321. doi:10.1002\/jgrg.20103\r\n\r\nJansen J, Thornton BF, Wik M, MacIntyre S, Crill PM. (2020). Temperature proxies as a solution to biased sampling of lake methane emissions. Geophysical Research Letters, 47. doi:10.1029\/2020GL088647\r\n\r\nWik M, Thornton BF, Varner RK, McCalley C, Crill PM. (2020). Stable methane isotopologues from northern lakes suggest ebullition is dominated by sub-lake scale processes. Journal of Geophysical Research - Biogeosciences, accepted\r\n","license":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/","isAccessibleForFree":true,"includedInDataCatalog":{"@type":"DataCatalog","name":"Bolin Centre for Climate Research, Stockholm University","identifier":"https:\/\/bolin.su.se\/data\/","url":"https:\/\/bolin.su.se\/data\/"},"distribution":{"@type":"DataDownload","encodingFormat":"application\/zip","contentUrl":"https:\/\/bolin.su.se\/data\/uploads\/stordalen-lakes-ch4-ebul-3.zip"},"size":1130724,"isBasedOn":"Wik M, Crill PM, Varner RK, Bastviken D. (2013). Multiyear measurements of ebullitive methane flux from three subarctic lakes, Journal of Geophysical Research: Biogeosciences, 118, 1307\u2060\u200a\u2013\u200a\u20601321. doi:10.1002\/jgrg.20103\r\n\r\nJansen J, Thornton BF, Wik M, MacIntyre S, Crill PM. (2020). Temperature proxies as a solution to biased sampling of lake methane emissions. Geophysical Research Letters, 47. doi:10.1029\/2020GL088647\r\n\r\nWik M, Thornton BF, Varner RK, McCalley C, Crill PM. (2020). Stable methane isotopologues from northern lakes suggest ebullition is dominated by sub-lake scale processes. Journal of Geophysical Research - Biogeosciences, accepted\r\n","temporalCoverage":"2009-06-10\/2009-06-10"}]