NEUVAC: Nonlinear Extreme Ultraviolet Irradiance Model for Aeronomic Calculations
Abstract The need for reliable estimates of solar extreme ultraviolet (EUV) for operational space weather nowcasting and forecasting has motivated the development of new model of solar irradiance variability in 59 wavelength bins between 1 and 1,750 Å. The model employs a nonlinear parameterization...
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| Format: | Article |
| Language: | English |
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Wiley
2024-12-01
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| Series: | Space Weather |
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| Online Access: | https://doi.org/10.1029/2024SW004043 |
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| author | Daniel A. Brandt Aaron J. Ridley |
| author_facet | Daniel A. Brandt Aaron J. Ridley |
| author_sort | Daniel A. Brandt |
| collection | DOAJ |
| description | Abstract The need for reliable estimates of solar extreme ultraviolet (EUV) for operational space weather nowcasting and forecasting has motivated the development of new model of solar irradiance variability in 59 wavelength bins between 1 and 1,750 Å. The model employs a nonlinear parameterization of rebinned daily FISM2 irradiances and is termed NEUVAC: Nonlinear Extreme Ultraviolet Irradiance Model for Aeronomic Calculations. The model is parameterized in terms of F10.7 and 54‐day averaged F10.7 in a backwards‐looking window. The model takes advantage of the high accuracy and resolution of FISM2, and the consistent availability of F10.7 data in order to provide the space weather community with an empirical irradiance model that requires only two inputs, and is applicable for solar EUV forecasting. Additionally, the model is capable of running ensembles and providing estimates of quantified uncertainty for usage by downstream ionosphere‐thermosphere models. The model is evaluated against native FISM2 outputs in the 37 bins used by the EUVAC model, as well as the bins specified by Solomon and Qian. Its accuracy and precision is also compared to that of EUVAC, HEUVAC, and the HFG models. |
| format | Article |
| id | doaj-art-ebfd1f6fd0f24206bced75d75f71cd91 |
| institution | Kabale University |
| issn | 1542-7390 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Space Weather |
| spelling | doaj-art-ebfd1f6fd0f24206bced75d75f71cd912025-02-01T08:10:32ZengWileySpace Weather1542-73902024-12-012212n/an/a10.1029/2024SW004043NEUVAC: Nonlinear Extreme Ultraviolet Irradiance Model for Aeronomic CalculationsDaniel A. Brandt0Aaron J. Ridley1Michigan Tech Research Institute ‐ Michigan Technological University Ann Arbor MI USADepartment of Climate and Space Sciences and Engineering University of Michigan Ann Arbor MI USAAbstract The need for reliable estimates of solar extreme ultraviolet (EUV) for operational space weather nowcasting and forecasting has motivated the development of new model of solar irradiance variability in 59 wavelength bins between 1 and 1,750 Å. The model employs a nonlinear parameterization of rebinned daily FISM2 irradiances and is termed NEUVAC: Nonlinear Extreme Ultraviolet Irradiance Model for Aeronomic Calculations. The model is parameterized in terms of F10.7 and 54‐day averaged F10.7 in a backwards‐looking window. The model takes advantage of the high accuracy and resolution of FISM2, and the consistent availability of F10.7 data in order to provide the space weather community with an empirical irradiance model that requires only two inputs, and is applicable for solar EUV forecasting. Additionally, the model is capable of running ensembles and providing estimates of quantified uncertainty for usage by downstream ionosphere‐thermosphere models. The model is evaluated against native FISM2 outputs in the 37 bins used by the EUVAC model, as well as the bins specified by Solomon and Qian. Its accuracy and precision is also compared to that of EUVAC, HEUVAC, and the HFG models.https://doi.org/10.1029/2024SW004043solar EUVempiricaluncertaintyensembleMonte Carloirradiance |
| spellingShingle | Daniel A. Brandt Aaron J. Ridley NEUVAC: Nonlinear Extreme Ultraviolet Irradiance Model for Aeronomic Calculations Space Weather solar EUV empirical uncertainty ensemble Monte Carlo irradiance |
| title | NEUVAC: Nonlinear Extreme Ultraviolet Irradiance Model for Aeronomic Calculations |
| title_full | NEUVAC: Nonlinear Extreme Ultraviolet Irradiance Model for Aeronomic Calculations |
| title_fullStr | NEUVAC: Nonlinear Extreme Ultraviolet Irradiance Model for Aeronomic Calculations |
| title_full_unstemmed | NEUVAC: Nonlinear Extreme Ultraviolet Irradiance Model for Aeronomic Calculations |
| title_short | NEUVAC: Nonlinear Extreme Ultraviolet Irradiance Model for Aeronomic Calculations |
| title_sort | neuvac nonlinear extreme ultraviolet irradiance model for aeronomic calculations |
| topic | solar EUV empirical uncertainty ensemble Monte Carlo irradiance |
| url | https://doi.org/10.1029/2024SW004043 |
| work_keys_str_mv | AT danielabrandt neuvacnonlinearextremeultravioletirradiancemodelforaeronomiccalculations AT aaronjridley neuvacnonlinearextremeultravioletirradiancemodelforaeronomiccalculations |