Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • TOMS/N7 MS SO2 Vertical Column 1-Orbit L2 Swath 50x50 km V3 (TOMSN7SO2) at GES DISC

    Metadata Updated: December 7, 2023

    Version 3 is the current version of the data set. Older versions will no longer be available and have been superseded by Version 3. The goal of this data set is to create and archive a Level 2 SO2 Earth Science Data Record (ESDR) from backscatter Ultraviolet (BUV) measurements from Total Ozone Mapping Spectrometer (TOMS) flown on NASA's Nimbus - 7 satellite in 1978-1993. We apply TOMS ozone team calibration techniques and consistent MEaSUREs SO2 (MS_SO2) algorithm, to obtain the best measurement-based ESDR of volcanic and anthropogenic SO2 masses and emissions.

    As part of the NASA's Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, the Goddard Earth Science (GES) Data and Information Data Center (DISC) has released a new SO2 Earth System Data Record (ESDR), TOMSN7SO2, re-processed using new 4 UV wavelength bands MS_SO2 algorithm that spans the full Nimbus 7 data period. TOMSN7SO2 is a Level 2 orbital swath product, which will be used to study the fifteen-year SO2 record from the Nimbus-7 TOMS and to expand the historical database of known volcanic eruptions.

    Sulfur Dioxide (SO2) is a short-lived gas primarily produced by volcanoes, power plants, refineries, metal smelting and burning of fossil fuels. Where SO2 remains near the Earth s surface, it is toxic, causes acid rain, and degrades air quality. Where SO2 is lofted into the free troposphere, it forms aerosols that can alter cloud reflectivity and precipitation. In the stratosphere, volcanic SO2 forms sulfate aerosols that can result in climate change.

    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://doi.org/10.5194/amt-2019-150

    Dates

    Metadata Created Date November 12, 2020
    Metadata Updated Date December 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Graphic Preview

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date December 7, 2023
    Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
    Maintainer
    Identifier C1615905582-GES_DISC
    Data First Published 2019-05-31
    Language en-US
    Data Last Modified 2019-05-31
    Category MEaSUREs, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.nasa.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Citation Nickolay A. Krotkov, Pawan K. Bhartia, Bradford Fisher, Peter Leonard. 2019-05-31. TOMSN7SO2. Version 3. TOMS/N7 MS SO2 Vertical Column 1-Orbit L2 Swath 50x50 km V3. Greenbelt, MD, USA. TOMSN7SO2_V2.00. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://doi.org/10.5067/MEASURES/SO2/DATA204. https://disc.gsfc.nasa.gov/datacollection/TOMSN7SO2_3.html. Digital Science Data.
    Creator Nickolay A. Krotkov, Pawan K. Bhartia, Bradford Fisher, Peter Leonard
    Data Presentation Form Digital Science Data
    Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/MEaSUREs/Krotkov/Pinatubo_sample_06191991.png
    Harvest Object Id ab7c1b85-e359-45b8-aa5b-9d8154fb73cc
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Issue Identification TOMSN7SO2_V2.00
    Homepage URL https://doi.org/10.5067/MEASURES/SO2/DATA204
    Metadata Type geospatial
    Old Spatial -180.0 -90.0 180.0 90.0
    Program Code 026:001
    Related Documents https://doi.org/10.5194/amt-2019-150
    Release Place Greenbelt, MD, USA
    Series Name TOMSN7SO2
    Source Datajson Identifier True
    Source Hash 105e1e09abe03f80ba4a722745d82643207c52f67dfa4710ecd1f1fb41d16d64
    Source Schema Version 1.1
    Spatial
    Temporal 1978-11-01T00:00:00Z/1993-05-07T23:59:59.999Z

    Didn't find what you're looking for? Suggest a dataset here.