A Reconstruction Method for Ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> Spatial Mapping over Australia
To improve the accuracy of predicting the ionospheric critical frequency of the F2 layer (<i>f</i><sub>o</sub>F<sub>2</sub>), a reconstruction method for the spatial map of the ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> based...
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| Format: | Article |
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MDPI AG
2023-09-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/14/9/1399 |
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| author | Yiran Liu Qiao Yu Yafei Shi Cheng Yang Jian Wang |
| author_facet | Yiran Liu Qiao Yu Yafei Shi Cheng Yang Jian Wang |
| author_sort | Yiran Liu |
| collection | DOAJ |
| description | To improve the accuracy of predicting the ionospheric critical frequency of the F2 layer (<i>f</i><sub>o</sub>F<sub>2</sub>), a reconstruction method for the spatial map of the ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> based on modified geomagnetic dip coordinates is proposed. Based on the strong correlation between the ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> and geomagnetic coordinates, the variation function of ionospheric distance is built. In the end, the spatial map of the ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> is predicted by solving the Kriging equation. The results show that the regional characteristics of the ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> analyzed by the proposed method are consistent with the observations. Compared with the reconstructed value of <i>f</i><sub>o</sub>F<sub>2</sub> using traditional geographic coordinates, the root-mean-square error (RMSE) in high solar activity years decreased by 0.43 MHz, and the relative RMSE decreased by 5.48%; The RMSE decreased by 0.35 MHz during low solar activity which is 5.99% lower to relative RMSE. The research results provide support for high-frequency communication frequency selection. |
| first_indexed | 2024-03-10T23:03:45Z |
| format | Article |
| id | doaj.art-a4b8b86271994893a7f072a0bb9a544b |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T23:03:45Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-a4b8b86271994893a7f072a0bb9a544b2023-11-19T09:30:45ZengMDPI AGAtmosphere2073-44332023-09-01149139910.3390/atmos14091399A Reconstruction Method for Ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> Spatial Mapping over AustraliaYiran Liu0Qiao Yu1Yafei Shi2Cheng Yang3Jian Wang4School of Microelectronics, Tianjin University, Tianjin 300072, ChinaSchool of Microelectronics, Tianjin University, Tianjin 300072, ChinaSchool of Microelectronics, Tianjin University, Tianjin 300072, ChinaQingdao Institute for Ocean Technology, Tianjin University, Qingdao 266200, ChinaSchool of Microelectronics, Tianjin University, Tianjin 300072, ChinaTo improve the accuracy of predicting the ionospheric critical frequency of the F2 layer (<i>f</i><sub>o</sub>F<sub>2</sub>), a reconstruction method for the spatial map of the ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> based on modified geomagnetic dip coordinates is proposed. Based on the strong correlation between the ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> and geomagnetic coordinates, the variation function of ionospheric distance is built. In the end, the spatial map of the ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> is predicted by solving the Kriging equation. The results show that the regional characteristics of the ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> analyzed by the proposed method are consistent with the observations. Compared with the reconstructed value of <i>f</i><sub>o</sub>F<sub>2</sub> using traditional geographic coordinates, the root-mean-square error (RMSE) in high solar activity years decreased by 0.43 MHz, and the relative RMSE decreased by 5.48%; The RMSE decreased by 0.35 MHz during low solar activity which is 5.99% lower to relative RMSE. The research results provide support for high-frequency communication frequency selection.https://www.mdpi.com/2073-4433/14/9/1399ionospheremodified geomagnetic dip coordinatesspatial mappingreconstruction |
| spellingShingle | Yiran Liu Qiao Yu Yafei Shi Cheng Yang Jian Wang A Reconstruction Method for Ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> Spatial Mapping over Australia Atmosphere ionosphere modified geomagnetic dip coordinates spatial mapping reconstruction |
| title | A Reconstruction Method for Ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> Spatial Mapping over Australia |
| title_full | A Reconstruction Method for Ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> Spatial Mapping over Australia |
| title_fullStr | A Reconstruction Method for Ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> Spatial Mapping over Australia |
| title_full_unstemmed | A Reconstruction Method for Ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> Spatial Mapping over Australia |
| title_short | A Reconstruction Method for Ionospheric <i>f</i><sub>o</sub>F<sub>2</sub> Spatial Mapping over Australia |
| title_sort | reconstruction method for ionospheric i f i sub o sub f sub 2 sub spatial mapping over australia |
| topic | ionosphere modified geomagnetic dip coordinates spatial mapping reconstruction |
| url | https://www.mdpi.com/2073-4433/14/9/1399 |
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