ATom: In Situ Atmospheric Water Vapor from the Diode Laser Hygrometer, Version 2

Description

This dataset provides the concentrations of water measured by the Diode Laser Hygrometer (DLH) flown on the NASA DC-8 during the ATom 1-4 campaigns from 2016 - 2018. The DLH measures the water vapor in the atmosphere by wavelength modulated differential absorption spectroscopy of an isolated rovibrational line. The measurements include water vapor mixing ratio in parts-per-million-by-volume (ppmv) and relative humidity in percent. Relative humidity, both with respect to liquid water and with respect to ice, are quantities derived from measurements of water vapor mixing ratio as well as ambient temperature and pressure.

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%2F1937
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/atom/ATom_DLH_Instrument_Data_V2/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ATOM/guides/ATom_DLH_Instrument_Data_V2.html
33 ATom: In Situ Atmospheric Water Vapor from the Diode Laser Hygrometer, Version 2: ATom_DLH_Instrument_Data_V2.pdf https://data.ornldaac.earthdata.nasa.gov/public/atom/ATom_DLH_Instrument_Data_V2/comp/ATom_DLH_Instrument_Data_V2.pdf
34 A schematic of DLH electronic implementation. Source: Diskin et al., 2002 https://daac.ornl.gov/ATOM/guides/ATom_DLH_Instrument_Data_V2_Fig1.png
21 ATom campaign page https://daac.ornl.gov/ATOM/campaign/
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1937

Tags

  • atmospheric-water-vapor
  • atmosphere
  • air-quality
  • earth-science

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