NOAA/NCEI and University of Colorado candidate models for IGRF-13
Abstract The International Geomagnetic Reference Field (IGRF) is a set of parameters representing the large-scale internal part of Earth’s magnetic field. The 13th generation IGRF requested candidate models for a definitive main field for 2015.0, a provisional main field for 2020.0, and a predictive...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-02-01
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| Series: | Earth, Planets and Space |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40623-020-01313-z |
| _version_ | 1831812617258139648 |
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| author | P. Alken A. Chulliat M. Nair |
| author_facet | P. Alken A. Chulliat M. Nair |
| author_sort | P. Alken |
| collection | DOAJ |
| description | Abstract The International Geomagnetic Reference Field (IGRF) is a set of parameters representing the large-scale internal part of Earth’s magnetic field. The 13th generation IGRF requested candidate models for a definitive main field for 2015.0, a provisional main field for 2020.0, and a predictive secular variation covering the period 2020.0–2025.0. The University of Colorado (CU) and the National Centers for Environmental Information (NCEI), part of the National Oceanic and Atmospheric Administration (NOAA), have produced these three candidate models for consideration in IGRF-13. In this paper, we present the methodology used to derive our candidate models. Our candidates were built primarily from Swarm satellite data, and also relied on geomagnetic indices derived from the ground observatory network. The ground observatories played a crucial role as independent data in validating our candidates. This paper also provides a retrospective assessment of the CU/NCEI candidate model to the previous IGRF (IGRF-12) and discusses the impact of differences between candidate and final IGRF models on global model errors. |
| first_indexed | 2024-12-22T21:39:30Z |
| format | Article |
| id | doaj.art-50c137a0959b463b8fadd12ec73f7e98 |
| institution | Directory Open Access Journal |
| issn | 1880-5981 |
| language | English |
| last_indexed | 2024-12-22T21:39:30Z |
| publishDate | 2021-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Earth, Planets and Space |
| spelling | doaj.art-50c137a0959b463b8fadd12ec73f7e982022-12-21T18:11:38ZengSpringerOpenEarth, Planets and Space1880-59812021-02-017311910.1186/s40623-020-01313-zNOAA/NCEI and University of Colorado candidate models for IGRF-13P. Alken0A. Chulliat1M. Nair2Cooperative Institute for Research in Environmental Sciences, University of Colorado BoulderCooperative Institute for Research in Environmental Sciences, University of Colorado BoulderCooperative Institute for Research in Environmental Sciences, University of Colorado BoulderAbstract The International Geomagnetic Reference Field (IGRF) is a set of parameters representing the large-scale internal part of Earth’s magnetic field. The 13th generation IGRF requested candidate models for a definitive main field for 2015.0, a provisional main field for 2020.0, and a predictive secular variation covering the period 2020.0–2025.0. The University of Colorado (CU) and the National Centers for Environmental Information (NCEI), part of the National Oceanic and Atmospheric Administration (NOAA), have produced these three candidate models for consideration in IGRF-13. In this paper, we present the methodology used to derive our candidate models. Our candidates were built primarily from Swarm satellite data, and also relied on geomagnetic indices derived from the ground observatory network. The ground observatories played a crucial role as independent data in validating our candidates. This paper also provides a retrospective assessment of the CU/NCEI candidate model to the previous IGRF (IGRF-12) and discusses the impact of differences between candidate and final IGRF models on global model errors.https://doi.org/10.1186/s40623-020-01313-zIGRFMagnetic field modelingGeomagnetism |
| spellingShingle | P. Alken A. Chulliat M. Nair NOAA/NCEI and University of Colorado candidate models for IGRF-13 Earth, Planets and Space IGRF Magnetic field modeling Geomagnetism |
| title | NOAA/NCEI and University of Colorado candidate models for IGRF-13 |
| title_full | NOAA/NCEI and University of Colorado candidate models for IGRF-13 |
| title_fullStr | NOAA/NCEI and University of Colorado candidate models for IGRF-13 |
| title_full_unstemmed | NOAA/NCEI and University of Colorado candidate models for IGRF-13 |
| title_short | NOAA/NCEI and University of Colorado candidate models for IGRF-13 |
| title_sort | noaa ncei and university of colorado candidate models for igrf 13 |
| topic | IGRF Magnetic field modeling Geomagnetism |
| url | https://doi.org/10.1186/s40623-020-01313-z |
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