ATom: Column-Integrated Densities of Hydroxyl and Formaldehyde in Remote Troposphere

Description

This dataset provides profile-integrated column densities of formaldehyde (HCHO), hydroxyl (OH), and OH production rates, diel tropospheric mean OH concentrations, and uncertainties that were derived from direct observation data from selected profiles of NASA Atmospheric Tomography (ATom) mission 1 and 2 flights for the period July 29, 2016 to February 21, 2017. These calculated products were combined with coincident HCHO column retrievals from the Ozone Monitoring Instrument (OMI) to scale and extend the profile results to a global gridded (0.5 deg latitude x 0.625 deg longitude) product. In addition to OMI formaldehyde column data, model output products from the Global Modeling Initiative (GMI) including average tropopause height, scaling factor, column air mass, and column-average formaldehyde photolysis frequency are provided. The GMI model output products were used in calculations and are included for user convenience.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1669
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/atom/ATom_Mapping_OH_Troposphere/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ATOM/guides/ATom_Mapping_OH_Troposphere.html
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1669
21 ATom: Column-Integrated Densities of Hydroxyl and Formaldehyde in Remote Troposphere: readme_wolfe2019_manuscript_data_R1.txt https://data.ornldaac.earthdata.nasa.gov/public/atom/ATom_Mapping_OH_Troposphere/comp/readme_wolfe2019_manuscript_data_R1.txt
21 ATom campaign page https://daac.ornl.gov/ATOM/campaign/
22 Black lines show full flight tracks for ATom missions 1 (a) and 2 (b). Circles mark the locations of the 139 selected profiles sampling the remote troposphere. Circle color indicates HCHO column densities integrated over each ATom profile. Data are overlain on global gridded OMI HCHO column densities averaged over each mission. From Wolfe et al. (2019). https://daac.ornl.gov/ATOM/guides/ATom_Mapping_OH_Troposphere_Fig1.jpg
33 ATom: Vertical Profiles and Synthesis of Hydroxyl and Formaldehyde in the Troposphere: ATom_Mapping_OH_Troposphere.pdf https://data.ornldaac.earthdata.nasa.gov/public/atom/ATom_Mapping_OH_Troposphere/comp/ATom_Mapping_OH_Troposphere.pdf

Tags

  • atmosphere
  • atmospheric-chemistry
  • earth-science

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