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CARVE: L2 Atmospheric Gas Concentrations, Tower-based Flasks, Alaska, 2012-2015

Data Set Overview

Data setCARVE: L2 Atmospheric Gas Concentrations, Tower-based Flasks, Alaska, 2012-2015
DOI10.3334/ORNLDAAC/1405
Release date2016-11-18
ProjectCarbon in Arctic Reservoirs Vulnerability Experiment
Time Period2012-01-04 to 2015-12-05

Description

This data set provides atmospheric carbon dioxide, methane, carbon monoxide, molecular hydrogen, nitrous oxide, sulfur hexafluoride, and other trace gas mole fractions (i.e. "concentrations") from a flask sampling system at the CARVE flux tower in Fox, Alaska for the Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE). The data were derived from laboratory measurements of whole air samples collected by a Programmable Flask Package (PFP) from the top of the tower at 32 m above ground level during late evening multiple times per month since January 2012. Whole air samples collected in the PFPs were analyzed on automated systems at the NOAA Earth System Research Laboratory (ESRL) Global Monitoring Division in Boulder, CO, which also analyzes samples from the NOAA/ESRL Global Greenhouse Gas Reference Network. 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.

Documentation

Data set reference document

Citation

Miller, J.B., C. Sweeney, A. Karion, and C.E. Miller. 2016. CARVE: L2 Atmospheric Gas Concentrations, Tower-based Flasks, Alaska, 2012-2015. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1405
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Project

Carbon in Arctic Reservoirs Vulnerability Experiment: The Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) is a NASA Earth System Science Pathfinder Mission. From 2011 to 2015, CARVE collected airborne measurements of atmospheric carbon dioxide, methane, and carbon monoxide and relevant land surface parameters in the Alaskan Arctic. Continuous ground-based measurements provide temporal and regional context as well as calibration for CARVE airborne measurements. CARVE provides an integrated set of greenhouse gas data that provides experimental insights into Arctic carbon cycling.

Project data set list for Carbon in Arctic Reservoirs Vulnerability Experiment.

Companion Files

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  • CARVE_L2_Flask_Ground.pdf

Data Files

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Data File (Granule)File SizeDates
carve_GroundFlask_L2_b23_20121202_20160807222500.nc 2.6 MB 2012-01-04 - 2012-12-02
carve_GroundFlask_L2_b23_20131121_20160807222701.nc 2.6 MB 2013-01-05 - 2013-11-21
carve_GroundFlask_L2_b23_20141230_20160807222755.nc 2.1 MB 2014-02-27 - 2014-12-30
carve_GroundFlask_L2_b23_20151205_20160807222903.nc 2.6 MB 2015-01-01 - 2015-12-05

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Files related to this data set have been downloaded on 2 occasions since 2017-01-22, totaling 12 files.