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

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/1870
Version1
Project
Published2021-12-21
Updated2021-12-21
Usage116 downloads

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

Science Keywords

  • CLIMATE INDICATORS
  • PALEOCLIMATE INDICATORS
  • PERMAFROST/METHANE RELEASE
  • BIOSPHERE
  • ECOSYSTEMS
  • FRESHWATER ECOSYSTEMS
  • LAKE/POND

Data Use and Citation

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Crosscite Citation Formatter
Elder, C., N. Hasson, P. Hanke, S. Wright, K.W. Anthony, and C.E. Miller. 2021. Methane Fluxes from Shorelines and Differing Surfaces, Big Trail Lake, Alaska, 2019. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1870

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Companion Files

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Dataset has 1 companion files.

  • CH4_Fluxes_ThermokarstLakes_AK.pdf