Skip to main content

DAAC Home > About Us >

You are here

News > ACT-America Tracks Atmospheric Carbon


ACT-America Tracks Atmospheric Carbon

The ACT-America mission

The Atmospheric Carbon and Transport – America (ACT-America) project is conducting airborne campaigns across three regions in the eastern United States to study the transport of atmospheric carbon.

ACT-America: L2 In Situ Atmospheric CO2, CO, CH4, and O3 Concentrations, Eastern USA

This dataset provides atmospheric carbon dioxide (CO2), carbon monoxide (CO), methane (CH4), and ozone (O3) concentrations collected during airborne campaigns conducted by the Atmospheric Carbon and Transport-America (ACT-America) project. ACT-America's mission spans 5 years and includes five 6-week field campaigns covering all 4 seasons and 3 regions of the central and eastern United States. Two instrumented aircraft platforms, the NASA Langley Beechcraft B200 King Air and the NASA Goddard Space Flight Center's C-130H Hercules, are used to collect high-quality in situ measurements across a variety of continental surfaces and atmospheric conditions. CO2, CO, and CH4 are collected with an infrared cavity ring-down spectrometer system (CRDS; Picarro Inc.). Ozone data are collected with a dual beam differential UV absorption ozone monitor (Model 205; 2B Technologies). Both aircraft host identical arrays of in situ sensors. Complete aircraft flight information including, but not limited to, latitude, longitude, and altitude are also provided.

Data from the Summer 2016 campaign are now available.

Data Citation:
Digangi, J.P., Y. Choi, J.B. Nowak, and H.S. Halliday. 2017. ACT-America: L2 In Situ Atmospheric CO2, CO, CH4, and O3 Concentrations, Eastern USA. ORNL DAAC, Oak Ridge, Tennessee, USA.
Data center: ORNL DAAC