Methane Fluxes from Shorelines and Differing Surfaces, Big Trail Lake, Alaska, 2019

Description

This dataset provides methane fluxes from hot-spot and non-hot spot differing surfaces at Big Trail Lake (BTL) in the Goldstream Valley near Fairbanks, AK, USA. Measurements were taken at a remotely-sensed methane hotspot on the shoreline of a pond, adjacent to BTL with a Los Gatos Ultra-Portable Greenhouse Gas Analyzer (UGGA), and from various non-hotspot surfaces representative of the broader thermokarst lake ecosystem with bucket chambers. All data were collected between 2019-07-04 and 2019-12-04 during the daytime hours of 09:35-17:32 local time. A ground-based CH4 enhancement survey was performed on 2019-07-06 between 13:25-17:15 Alaska Daylight Time (AKDT), approximately two hours following an AVIRIS-NG overflight and hotspot detection at the Eastside Pond. Methane flux is reported in units of both mmol CH4 m-2 hr-1 and mg CH4 m-2 d-1. Flux errors are quantified for each

Resources

Name Format Description Link
5 https://doi.org%2F10.3334%2FORNLDAAC%2F1870
5 https://data.ornldaac.earthdata.nasa.gov%2Fprotected%2Fbundle%2FCH4_Fluxes_ThermokarstLakes_AK_1870.zip
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DCH4_Fluxes_ThermokarstLakes_AK_1870%26ac%3Dtrue
5 https://daac.ornl.gov%2FABOVE%2Fguides%2FCH4_Fluxes_ThermokarstLakes_AK.html
5 https://daac.ornl.gov%2FABOVE%2Fguides%2FCH4_Fluxes_ThermokarstLakes_AK_Fig1.png
5 https://above.nasa.gov%2F
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Fabove%2FCH4_Fluxes_ThermokarstLakes_AK%2Fcomp%2FCH4_Fluxes_ThermokarstLakes_AK.pdf
21 https://doi.org/10.3334/ORNLDAAC/1870
34 CH4_Fluxes_ThermokarstLakes_AK_Fig1.png https://daac.ornl.gov/ABOVE/guides/CH4_Fluxes_ThermokarstLakes_AK_Fig1.png
5 https://above.nasa.gov/
33 CH4_Fluxes_ThermokarstLakes_AK.pdf https://data.ornldaac.earthdata.nasa.gov/public/above/CH4_Fluxes_ThermokarstLakes_AK/comp/CH4_Fluxes_ThermokarstLakes_AK.pdf
5 https://search.earthdata.nasa.gov/search?q=CH4_Fluxes_ThermokarstLakes_AK_1870&ac=true
57 CH4_Fluxes_ThermokarstLakes_AK_1870.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/CH4_Fluxes_ThermokarstLakes_AK_1870.zip
5 https://above.nasa.gov
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2192619099-ORNL_CLOUD.iso19115

Tags

  • earth-science-ecosystems-biosphere-freshwater-ecosystems-lake-pond
  • earth-science-paleoclimate-indicators-climate-indicators-permafrost-methane-release

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