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    • High Definition Geomagnetic Model 2023 Real-Time Disturbance Calculator

    Metadata Updated: January 6, 2023

    The High Definition Geomagnetic Model (HDGM) is a global, high resolution model of the Earth's geomagnetic main and crustal field, providing magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface. Well planners can use HDGM to compute magnetic reference values at any point, as well as easily integrate HDGM into their directional drilling software. HDGM is updated annually to correctly model secular changes in the geomagnetic field. The US National Oceanic and Atmospheric Administration (NOAA), in partnership with the directional drilling industry and the University of Colorado have developed a real-time component for NOAA's High Definition Geomagnetic Model. HDGM-RT improves the HDGM by accurately modeling the magnetic fields originating in the Earth's magnetosphere in real-time using a combination of solar-wind observing satellites situated between Earth and sun and a chain of geomagnetic observatories on the Earth's surface. The model also includes an ionospheric field model calculated from a combination of observatory and Swarm satellite data in order to represent the daily variations in the ionosphere. The addition of HDGM RT can save rig-time and reduce the drilling cost by enabling improved drill string interference correction during adverse space weather conditions.

    Access & Use Information

    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

    Dates

    Metadata Date November 22, 2022
    Metadata Created Date January 6, 2023
    Metadata Updated Date January 6, 2023
    Reference Date(s) November 15, 2022 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NGDC MGG Geophysical Models

    Other Data Resources

    Graphic Preview

    A map showing the magnetospheric component of the Earth's magnetic field calculated by the HDGM-RT with an inset of a declination line chart from the Honolulu observatory.

    Additional Metadata

    Resource Type Model
    Metadata Date November 22, 2022
    Metadata Created Date January 6, 2023
    Metadata Updated Date January 6, 2023
    Reference Date(s) November 15, 2022 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ncei:879056280790955
    Access Constraints Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose., Cite as: NCEI Geomagnetic Modeling Team. 2020: High Definition Geomagnetic Model 2021 Real-Time Disturbance Calculator. NOAA National Centers for Environmental Information. Accessed [date].
    Bbox East Long 180
    Bbox North Lat 90
    Bbox South Lat -90
    Bbox West Long -180
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description A map showing the magnetospheric component of the Earth's magnetic field calculated by the HDGM-RT with an inset of a declination line chart from the Honolulu observatory.
    Graphic Preview File https://www.ngdc.noaa.gov/geomag/HDGM/images/Storm_w_insert_wDIFI.png
    Graphic Preview Type PNG
    Harvest Object Id d89141f4-6f27-4772-84f7-b952a48b0ab5
    Harvest Source Id 5ed471dc-74d7-4fff-9550-9d3d373a7a15
    Harvest Source Title NGDC MGG Geophysical Models
    Licence Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
    Lineage
    Metadata Language
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG::4326
    Spatial Harvester True
    Temporal Extent Begin 1900-01-01
    Temporal Extent End 2023-12-31

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