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Dissolved methane and CO2 concentrations and stable carbon isotopes from the coastal Arctic landscape of the Greiner Lake watershed, Nunavut, Canada in June 2022 and June-July 2023

Online link https://cmgds.marine.usgs.gov/catalog/whcmsc/SB_data_release/DR_P1UECHWK/CambridgeBay_Auto-SIMdata_2022-2023_metadata.faq.html
Description A watershed in the coastal Canadian Arctic was sampled for dissolved carbon dioxide and methane concentration and stable carbon (carbon-13) isotopes to trace the transport, production, and consumption of carbon dioxide and methane during the spring thaw across a lake to bay transect. Two field campaigns were conducted in June 2022 and June-July 2023 out of the Canadian High Arctic Research Station (CHARS) in Cambridge Bay, Nunavut, Canada. Gas samples were collected via headspace extraction and transported back to the U.S. Geological Survey (USGS) Woods Hole Coastal and Marine Science Center (WHCMSC), where they were analyzed utilizing the USGS Automated Sample Introduction Module (AutoSIM) interfaced to a Picarro G2201-i CRDS (Cavity Ring-Down Spectrometer) to measure concentrations and stable carbon isotope ratios of methane and carbon dioxide. Field sampling was carried out by researchers from the Woods Hole Oceanographic Institution. [More]
Originators Traylor, Shawnee; Pohlman, John W.; Casso, Michael A.; Boze, Lee-Gray; Youngs, Sarah; and Burkitt-Gray, Mary

Related topics

Aquatic ecosystems, Biogeochemical cycling, Biogeochemical cycling, Carbon cycling, Carbon isotope analysis, Coastal ecosystems, Dissolved gases, Estuarine ecosystems, Freshwater ecosystems, Geochemistry, Permafrost, Environment, InlandWaters, Oceans
Browse graphic of the sampling locations in the Greiner Lake watershed from the 2022 (red circles) and 2023 (blue circles) campaigns, with sites that were visited both years in purple. Letters refer to the Station ID name. The frequency of sampling and data collected varied by location. These sites included the lake, river, bay, and six ponds at varying distance from Cambridge Bay. Satellite image from Earthstar Geographics.
Browse graphic of the sampling locations in the Greiner Lake watershed from the 2022 (red circles) and 2023 (blue circles) campaigns, with sites that were visited both years in purple. Letters refer to the Station ID name. The frequency of sampling and data collected varied by location. These sites included the lake, river, bay, and six ponds at varying distance from Cambridge Bay. Satellite image from Earthstar Geographics.