ABoVE: Atmospheric Gas Concentrations from Airborne Flasks, Arctic-CAP, 2017

This dataset provides atmospheric carbon dioxide (CO2), methane (CH4), carbon monoxide (CO), molecular hydrogen (H2), nitrous oxide (N2O), sulfur hexafluoride (SF6), and other trace gas mole fractions (i.e. "concentrations") from flights over Alaska and the Yukon and Northwest Territories of Canada during the Arctic Carbon Aircraft Profile (Arctic-CAP) monthly sampling campaigns from April-November 2017. The data were derived from laboratory measurements of whole air samples collected by Programmable Flask Packages (PFP) onboard the aircraft. During each of the six monthly campaigns, flights over the Arctic-Boreal Vulnerability Experiment (ABoVE) domain included 25 vertical profiles, from the surface up to 6 km altitude, at locations selected to complement regular long-term vertical profiles, remote sensing data, and ground-based flux tower measurements. Measurements were initiated by the aircraft pilot at predetermined locations within each profile in order to evenly distribute flask sampling points throughout each flight. A total of 408 flask samples were collected during 55 individual flights. The measurements included in this data set are crucial for understanding changes in Arctic carbon cycling and the potential threats posed by thawing of Arctic permafrost.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated August 25, 2026, 08:44 (UTC)
Created April 1, 2025, 14:05 (UTC)
accessLevel public
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catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
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harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/1717
license https://www.usa.gov/government-works
modified 2026-08-17T22:16:00Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
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source_hash 1b9fab675a2fc97194f7f4453550c68b3077668a8942af61da1c5505b8dae625
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spatial ["CARTESIAN", [{"WestBoundingCoordinate": -165.48, "NorthBoundingCoordinate": 71.2712, "EastBoundingCoordinate": -111.572, "SouthBoundingCoordinate": 58.0838}]]
temporal 2017-04-27/2017-11-04
theme {"Earth Science"}