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    • CH3D ICE ABSORPTION COEFFICIENTS V1.0

    Metadata Updated: August 22, 2025

    This data set is the result of laboratory transmission spectroscopy experiments performed within a sealed cell in the ice laboratory at Northern Arizona University. We record spectra at wavelengths from 1 to 6 microns to study CH3D bands at 2.47, 2.87, and 4.56 microns (as indicated by '25', '29' and '45' in the data file names). We report temperature-dependent absorption coefficients of these bands when the CH3D is diluted in CH4 ice and also when it is dissolved in N2 ice. These absorption coefficient spectra can be combined with data from the literature to simulate arbitrary D/H ratio absorption coefficients for CH4 ice and for CH4 in N2 ice. The data were originally published in 2011 in Icarus, vol. 212, pp. 941-949, and that paper should be consulted for details about laboratory procedures and limitations of the data.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    References

    https://pds.nasa.gov

    Dates

    Metadata Created Date January 31, 2023
    Metadata Updated Date August 22, 2025
    Data Update Frequency irregular

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 31, 2023
    Metadata Updated Date August 22, 2025
    Publisher National Aeronautics and Space Administration
    Maintainer
    Identifier urn:nasa:pds:context_pds3:data_set:data_set.ear-x-i2041-5-ch3dicespec-v1.0_ieqz-cmuv
    Data First Published 2018-06-26
    Data Last Modified 2025-07-17
    Category Earth Science
    Public Access Level public
    Data Update Frequency irregular
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 6cfc5631-805a-46be-945d-64665d067491
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://pds.nasa.gov/ds-view/pds/viewDataset.jsp?dsid=EAR-X-I2041-5-CH3DICESPEC-V1.0
    Program Code 026:005
    Related Documents https://pds.nasa.gov
    Source Datajson Identifier True
    Source Hash cd893e9f938050626a29cef6685a599cee445264716b4cf6d8a4a2fde188eb4d
    Source Schema Version 1.1

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