Atmospheric Carbon and Transport - America

This is the nominal location of the site. The sampling location at many sites has changed over time, and we report here the most recent nominal location. The actual sampling location for each observation is not necessarily the site location. The sampling locations for each observation are reported in the latitude, longitude, and altitude variables.

Source data is all valid co2 data taken from PFP flasks on C130 aircraft. ICARTT files: ACTAMERICA-mrgPFP-c130_merge_20160718_R3_thru20160828.ict, ACTAMERICA-mrgPFP-c130_merge_20170125_R1_thru20170310.ict, ACTAMERICA-mrgPFP-c130_merge_20171003_R0_thru20171113.ict, ACTAMERICA-mrgPFP-c130_merge_20180423_R0_thru20180520.ict

Data retrieved from the NASA LaRC website at https://www-air.larc.nasa.gov/missions/ACT-America/index.html. For more information please visit the ACT America data page on the ORNL DAAC here https://doi.org/10.3334/ORNLDAAC/1575.

This data package is intended for use in carbon cycle inverse modeling, model evaluation, and satellite validation studies.  Please report errors and send comments regarding this product to the ObsPack originators.  Please read carefully the ObsPack Fair Use statement and cite appropriately. This is the fifth release of the GLOBALVIEWplus (GV+) cooperative data product. Please review the release notes for this product www.esrl.noaa.gov/gmd/ccgg/obspack/release_notes.html. DOI metadata for this product are available at https://search.datacite.org/works/10.25925/20190812.

Sweeney, C., B. Baier, J.B. Miller, P. Lang, B. Miller, S. Lehman, S. Englund-Michel, and M.M. Yang. 2018. ACT-America: L2 In Situ Atmospheric Gas Concentrations from Flasks, Eastern USA. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1575

Sweeney, C., A. Karion, S. Wolter, T. Newberger, D. Guenther, J. A. Higgs, A. E. Andrews, P. M. Lang, D. Neff, E. Dlugokencky, J. B. Miller, S. A. Montzka, B. R. Miller, K. A. Masarie, S. C. Biraud, P. C. Novelli, M. Crotwell, A. M. Crotwell, K. Thoning, and P. P. Tans (2015), Seasonal climatology of CO2 across North America from aircraft measurements in the NOAA/ESRL Global Greenhouse Gas Reference Network, Journal of Geophysical Research: Atmospheres, 120, 10, doi:10.1002/2014JD022591.