Airborne Observations and Modeling Comparison of Global Inorganic Aerosol Acidity

Description

This dataset provides observations collected during eleven airborne campaigns from 2006–2017 and associated input and output from nine widely used chemical transport models (CTMs). The airborne campaigns include ARCTAS-A, ARCTAS-B, ATom-1 and ATom-2, CalNex, DC3, INTEX-B, KORUS-AQ, MILAGRO, SEAC4RS, and WINTER, and they sampled mainly tropospheric air over the conterminous U.S. and the state of Alaska, Mexico, Canada, Greenland, and South Korea and remote areas over the Arctic, Pacific, Southern, and Atlantic Oceans. The CTMs are the AM4.1, CCSM4, GEOS-5, GEOS-Chem TOMAS, GEOS-Chem v10, GEOS-Chem v12, GISS-MATRIX, GISS-ModelE, and TM4-ECPL-F, and the output includes sulfate, nitrate, temperature, specific humidity, mixing ratio of ammonium, the volume mixing ratio of nitric acid, surface pressure, gas-phase ammonia, gas-phase nitric acid, pressure, total ammonium, etc. The observations were collected in-situ from a variety of instruments, including the Aerosol Microphysical Properties (AMP), HR Aerodyne Aerosol Mass Spectrometer (AMS), CIT Chemical Ionization Mass Spectrometer (CIMS), diode laser hygrometer (DLH), a mist chamber/ion chromatography system (MC/IC), Particle Analysis by Laser Mass Spectrometer (PALMS), Single Particle Soot Photometer (SP2), and UCI Whole Air Sampler (WAS). In-situ data also include latitude, longitude, and pressure. These observations were used to investigate how aerosol pH and ammonium balance change from polluted to remote regions, such as over oceans, and were compared to predictions from the CTMs.

Resources

Name Format Description Link
5 https://daac.ornl.gov%2FATOM%2Fguides%2FATom_Modeled_Observed_Data.html
5 https://doi.org%2F10.3334%2FORNLDAAC%2F1857
5 https://data.ornldaac.earthdata.nasa.gov%2Fprotected%2Fbundle%2FATom_Modeled_Observed_Data_1857.zip
5 https://daac.ornl.gov%2FATOM%2Fguides%2FATom_Modeled_Observed_Data_Fig1.png
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Fatom%2FATom_Modeled_Observed_Data%2Fcomp%2Ffile_groupings.pdf
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DATom_Modeled_Observed_Data_1857%26ac%3Dtrue
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Fatom%2FATom_Modeled_Observed_Data%2Fcomp%2FATom_Modeled_Observed_Data.pdf
5 https://search.earthdata.nasa.gov/search?q=ATom_Modeled_Observed_Data_1857&ac=true
21 https://doi.org/10.3334/ORNLDAAC/1857
57 ATom_Modeled_Observed_Data_1857.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/ATom_Modeled_Observed_Data_1857.zip
34 ATom_Modeled_Observed_Data_Fig1.png https://daac.ornl.gov/ATOM/guides/ATom_Modeled_Observed_Data_Fig1.png
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2698474800-ORNL_CLOUD.iso19115
33 file_groupings.pdf https://data.ornldaac.earthdata.nasa.gov/public/atom/ATom_Modeled_Observed_Data/comp/file_groupings.pdf
33 ATom_Modeled_Observed_Data.pdf https://data.ornldaac.earthdata.nasa.gov/public/atom/ATom_Modeled_Observed_Data/comp/ATom_Modeled_Observed_Data.pdf

Tags

  • earth-science-atmospheric-chemistry-atmosphere-trace-gases-trace-species
  • earth-science-air-quality-atmosphere
  • earth-science-atmospheric-chemistry-atmosphere-halocarbons-and-halogens
  • earth-science-atmospheric-chemistry-atmosphere-carbon-and-hydrocarbon-compounds
  • earth-science-aerosols-atmosphere-nitrate-particles
  • earth-science-aerosols-atmosphere-chemical-composition

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