ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols, Version 2

Description

This dataset provides information on greenhouse gases and human-produced air pollution, including atmospheric concentrations of carbon dioxide (CO2), methane (CH4), tropospheric ozone (O3), and black carbon (BC) aerosols, collected during airborne campaigns conducted by NASA's Atmospheric Tomography (ATom) mission. This dataset includes merged data from all instruments plus additional data such as numbered profiles and distance flown. Merged data products have been created for seven different aggregation intervals (1 second, 10 seconds, and 5 instrument-specific intervals). In the case of data obtained over longer time intervals (e.g., flask data), the merge files provide (weighted) averages to match the sampling intervals. This comprehensive dataset will be used to improve the representation of chemically reactive gases and short-lived climate forcers in global models of atmospheric chemistry and climate.

Resources

Name Format Description Link
34 Figure 1: Generalized overview of ATom flights. During each of the four campaigns, ATom flights originated from California, flew south over the Pacific Ocean, then north to the western Arctic, southwest to New Zealand, east to Chile and the Atlantic Ocean, north to Greenland, and returned to California across North America. During flights, the aircraft continuously profiled the atmosphere from 0.2 to 12 km altitude. https://daac.ornl.gov/ATOM/guides/ATom_merge_V2_Fig1.png
33 ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols, Version 2: ATom_merge_V2.pdf https://data.ornldaac.earthdata.nasa.gov/public/atom/ATom_merge_V2/comp/ATom_merge_V2.pdf
33 ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols, Version 2: ATom_merging_Rcode_20210804.pdf https://data.ornldaac.earthdata.nasa.gov/public/atom/ATom_merge_V2/comp/ATom_merging_Rcode_20210804.pdf
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/daacdata/atom/ATom_merge_V2/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ATOM/guides/ATom_merge_V2.html
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1925
21 ATom campaign page https://daac.ornl.gov/ATOM/campaign/
21 The THREDDS location for this Collection. https://thredds.daac.ornl.gov/thredds/catalog/ornldaac/1925/catalog.html
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1925
21 ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols, Version 2: ALLNAMES.txt https://data.ornldaac.earthdata.nasa.gov/public/atom/ATom_merge_V2/comp/ALLNAMES.txt

Tags

  • environmental-impacts
  • human-dimensions
  • aerosols
  • atmosphere
  • atmospheric-chemistry
  • air-quality
  • earth-science

Topics

Categories