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https://hdl.handle.net/10316/103184
Título: | PCA-MRM Model to Forecast TEC at Middle Latitudes | Autor: | Morozova, Anna L. Barata, Teresa Barlyaeva, Tatiana V. |
Palavras-chave: | TEC model; middle latitudes; space weather; principal component analysis | Data: | 2022 | Projeto: | project “SWAIR—Space weather impact on GNSS service for Air Navigation,” ESA Small ARTES Apps, https:/about.swair.ptech.io/ (accessed on 14 February 2021) FCT - project “PRIME: Portuguese Regional Ionosphere Model “ (EXPL/CTAMET/ 0677/2021) UIDB/04434/2020 UIDP/04434/2020 |
Título da revista, periódico, livro ou evento: | Atmosphere | Volume: | 13 | Número: | 2 | Resumo: | The total electron content (TEC) over the Iberian Peninsula was modelled using PCA-MRM models based on decomposition of the observed TEC series using the principal component analysis (PCA) and reconstruction of the daily modes’ amplitudes by a multiple linear regression model (MRM) using space weather parameters as regressors. The following space weather parameters are used: proxies for the solar UV and XR fluxes, number of the solar flares of different classes, parameters of the solar wind and of the interplanetary magnetic field, and geomagnetic indices. Time lags of 1 and 2 days between the TEC and space weather parameters are used. The performance of the PCA-MRM model is tested using data for 2015, both geomagnetically quiet and disturbed periods. The model performs well for quiet days and days with solar flares but without geomagnetic disturbances. The MAE and RMSE metrics are of the order of 3–5 TECu for daytime and ~2 TECu for night-time. During geomagnetically disturbed periods, the performance of the model deteriorates but only for daytime: MAE and RMSE are of the order of 4–6 TECu and can rise to ~13 TECu for the strongest geomagnetic storms. | URI: | https://hdl.handle.net/10316/103184 | ISSN: | 2073-4433 | DOI: | 10.3390/atmos13020323 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Física - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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PCAMRM-Model-to-Forecast-TEC-at-Middle-LatitudesAtmosphere.pdf | 2.87 MB | Adobe PDF | Ver/Abrir |
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