IZMIRAN candidate field model for IGRF-13
Abstract The International Geomagnetic Reference Field (IGRF) model is a combination of the several models developed by independent groups of scientists using different approaches for the selection of input data and methods for calculating harmonic coefficients. This approach allows for mutual compa...
| 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/s40623-020-01312-0 |
| _version_ | 1819178191901687808 |
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| author | Valeriy G. Petrov Tatyana N. Bondar |
| author_facet | Valeriy G. Petrov Tatyana N. Bondar |
| author_sort | Valeriy G. Petrov |
| collection | DOAJ |
| description | Abstract The International Geomagnetic Reference Field (IGRF) model is a combination of the several models developed by independent groups of scientists using different approaches for the selection of input data and methods for calculating harmonic coefficients. This approach allows for mutual comparison of individual models and for their combination to obtain the most reliable values of the harmonic coefficients. This letter provides a brief description of methods for building the IZMIRAN Earth’s main magnetic field model, submitted to the IAGA Working Group V-MOD for creating IGRF-13. Special efforts were made to obtain as uniform coverage of the entire Earth’s surface as possible with observations. The surface was divided into a grid of approximately equal cells. Then the data for geomagnetically quiet intervals were placed in the corresponding cells and a median filter was applied to select the data in each cell. Spherical harmonic coefficients up to degree 13 were calculated for the interval 2014-Jan to 2019-Aug with a time step of 10 days and extrapolated to 01.01.2010. |
| first_indexed | 2024-12-22T21:38:38Z |
| format | Article |
| id | doaj.art-80897d82a08d4460bd136d9d2d93cbe9 |
| institution | Directory Open Access Journal |
| issn | 1880-5981 |
| language | English |
| last_indexed | 2024-12-22T21:38:38Z |
| publishDate | 2021-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Earth, Planets and Space |
| spelling | doaj.art-80897d82a08d4460bd136d9d2d93cbe92022-12-21T18:11:41ZengSpringerOpenEarth, Planets and Space1880-59812021-02-017311410.1186/s40623-020-01312-0IZMIRAN candidate field model for IGRF-13Valeriy G. Petrov0Tatyana N. Bondar1Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN)Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN)Abstract The International Geomagnetic Reference Field (IGRF) model is a combination of the several models developed by independent groups of scientists using different approaches for the selection of input data and methods for calculating harmonic coefficients. This approach allows for mutual comparison of individual models and for their combination to obtain the most reliable values of the harmonic coefficients. This letter provides a brief description of methods for building the IZMIRAN Earth’s main magnetic field model, submitted to the IAGA Working Group V-MOD for creating IGRF-13. Special efforts were made to obtain as uniform coverage of the entire Earth’s surface as possible with observations. The surface was divided into a grid of approximately equal cells. Then the data for geomagnetically quiet intervals were placed in the corresponding cells and a median filter was applied to select the data in each cell. Spherical harmonic coefficients up to degree 13 were calculated for the interval 2014-Jan to 2019-Aug with a time step of 10 days and extrapolated to 01.01.2010.https://doi.org/10.1186/s40623-020-01312-0IGRFMagnetic field modelingGeomagnetism |
| spellingShingle | Valeriy G. Petrov Tatyana N. Bondar IZMIRAN candidate field model for IGRF-13 Earth, Planets and Space IGRF Magnetic field modeling Geomagnetism |
| title | IZMIRAN candidate field model for IGRF-13 |
| title_full | IZMIRAN candidate field model for IGRF-13 |
| title_fullStr | IZMIRAN candidate field model for IGRF-13 |
| title_full_unstemmed | IZMIRAN candidate field model for IGRF-13 |
| title_short | IZMIRAN candidate field model for IGRF-13 |
| title_sort | izmiran candidate field model for igrf 13 |
| topic | IGRF Magnetic field modeling Geomagnetism |
| url | https://doi.org/10.1186/s40623-020-01312-0 |
| work_keys_str_mv | AT valeriygpetrov izmirancandidatefieldmodelforigrf13 AT tatyananbondar izmirancandidatefieldmodelforigrf13 |