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ATom: GMI Chemical Transport Model Outputs

Submitted by ORNL DAAC Staff on 2021-12-28
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NASA's DC-8 flying laboratory. All four ATom campaigns were conducted with DC-8.
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NASA's DC-8 flying laboratory. All four ATom campaigns were conducted with DC-8.

The ORNL DAAC recently released the following Atmospheric Tomography Mission (ATom) dataset by Yang, M.M., et al. (2021):

ATom: Global Modeling Initiative (GMI) Chemical Transport Model (CTM) output

This dataset contains Global Modeling Initiative (GMI) Chemical Transport Model (CTM) outputs from the four Atom campaigns. GMI simulations of the ATom flight periods have a horizontal resolution of 1.0 x 1.25 degrees, with output every 15 minutes. The ICARTT files are generated by spatially and temporally interpolating the output to the ATom flight track. Vertical interpolation is linear in log-pressure. The netCDF files provide three-dimensional (3D) GMI simulation output for the region surrounding the flight track every 15 minutes at the original model resolution. GMI is a 3-D CTM that includes full chemistry for both the troposphere and stratosphere. GMI simulates the concentrations of many of the species measured during ATom.

The Atmospheric Tomography Mission (ATom) is a NASA Earth Venture Suborbital-2 mission to study the impact of human-produced air pollution on greenhouse gases and on chemically reactive gases in the atmosphere. ATom deployed an extensive gas and aerosol payload on the NASA DC-8 aircraft for systematic, global-scale sampling of the atmosphere, profiling continuously from 0.2 to 12 km altitude. Around-the-world flights were conducted in each of four seasons between 2016 and 2018.

Additional data from ATom and other relevant links can be found on the ORNL DAAC's ATom Project Page.

Citation: Strode, S.A., S.D. Steenrod, J.M. Nicely, J. Liu, M.R. Damon, and S.E. Strahan. 2021. ATom: Global Modeling Initiative (GMI) Chemical Transport Model (CTM) output. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1897

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