The Flare Irradiance Spectral Model‐Version 2 (FISM2)
Abstract The Flare Irradiance Spectral Model (FISM) is an important tool for estimating solar variability for a myriad of space weather research studies and applications, and FISM Version 2 (FISM2) recently was released. FISM2 is an empirical model of the solar ultraviolet irradiance created to fill...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-12-01
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| Series: | Space Weather |
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| Online Access: | https://doi.org/10.1029/2020SW002588 |
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| author | P. C. Chamberlin F. G. Eparvier V. Knoer H. Leise A. Pankratz M. Snow B. Templeman E. M. B. Thiemann D. L. Woodraska T. N. Woods |
| author_facet | P. C. Chamberlin F. G. Eparvier V. Knoer H. Leise A. Pankratz M. Snow B. Templeman E. M. B. Thiemann D. L. Woodraska T. N. Woods |
| author_sort | P. C. Chamberlin |
| collection | DOAJ |
| description | Abstract The Flare Irradiance Spectral Model (FISM) is an important tool for estimating solar variability for a myriad of space weather research studies and applications, and FISM Version 2 (FISM2) recently was released. FISM2 is an empirical model of the solar ultraviolet irradiance created to fill spectral and temporal gaps in the satellite observations. FISM2 estimates solar ultraviolet irradiance variations due to the solar cycle, solar rotations, and solar flares. The major improvement provided by FISM2 is that it is based on multiple new, more accurate instruments that have now captured almost a full solar cycle and thousands of flares, drastically improving the accuracy of the modeled FISM2 solar irradiance spectra. Specifically, these new instruments are the Solar Dynamics Observatory (SDO)/Extreme Ultraviolet Variability Experiment (EVE), Solar Radiation and Climate Experiment (SORCE)/X‐ray Photometer System (XPS), and SORCE/Solar Stellar Irradiance Comparison Experiment (SOLSTICE). FISM2 is also improved to 0.1‐nm spectral bins across the same 0‐ to 190‐nm spectral range and is already being used in research to estimate space weather changes due to solar irradiance variability in planetary thermospheres and ionospheres. |
| format | Article |
| id | doaj-art-87ed8243e7254c8da540d66f43e8619f |
| institution | Kabale University |
| issn | 1542-7390 |
| language | English |
| publishDate | 2020-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Space Weather |
| spelling | doaj-art-87ed8243e7254c8da540d66f43e8619f2025-01-14T16:35:25ZengWileySpace Weather1542-73902020-12-011812n/an/a10.1029/2020SW002588The Flare Irradiance Spectral Model‐Version 2 (FISM2)P. C. Chamberlin0F. G. Eparvier1V. Knoer2H. Leise3A. Pankratz4M. Snow5B. Templeman6E. M. B. Thiemann7D. L. Woodraska8T. N. Woods9Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USALaboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USALaboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USALaboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USALaboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USALaboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USALaboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USALaboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USALaboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USALaboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USAAbstract The Flare Irradiance Spectral Model (FISM) is an important tool for estimating solar variability for a myriad of space weather research studies and applications, and FISM Version 2 (FISM2) recently was released. FISM2 is an empirical model of the solar ultraviolet irradiance created to fill spectral and temporal gaps in the satellite observations. FISM2 estimates solar ultraviolet irradiance variations due to the solar cycle, solar rotations, and solar flares. The major improvement provided by FISM2 is that it is based on multiple new, more accurate instruments that have now captured almost a full solar cycle and thousands of flares, drastically improving the accuracy of the modeled FISM2 solar irradiance spectra. Specifically, these new instruments are the Solar Dynamics Observatory (SDO)/Extreme Ultraviolet Variability Experiment (EVE), Solar Radiation and Climate Experiment (SORCE)/X‐ray Photometer System (XPS), and SORCE/Solar Stellar Irradiance Comparison Experiment (SOLSTICE). FISM2 is also improved to 0.1‐nm spectral bins across the same 0‐ to 190‐nm spectral range and is already being used in research to estimate space weather changes due to solar irradiance variability in planetary thermospheres and ionospheres.https://doi.org/10.1029/2020SW002588space weatherirradiancesolarEUVsolar flaressolar cycle |
| spellingShingle | P. C. Chamberlin F. G. Eparvier V. Knoer H. Leise A. Pankratz M. Snow B. Templeman E. M. B. Thiemann D. L. Woodraska T. N. Woods The Flare Irradiance Spectral Model‐Version 2 (FISM2) Space Weather space weather irradiance solar EUV solar flares solar cycle |
| title | The Flare Irradiance Spectral Model‐Version 2 (FISM2) |
| title_full | The Flare Irradiance Spectral Model‐Version 2 (FISM2) |
| title_fullStr | The Flare Irradiance Spectral Model‐Version 2 (FISM2) |
| title_full_unstemmed | The Flare Irradiance Spectral Model‐Version 2 (FISM2) |
| title_short | The Flare Irradiance Spectral Model‐Version 2 (FISM2) |
| title_sort | flare irradiance spectral model version 2 fism2 |
| topic | space weather irradiance solar EUV solar flares solar cycle |
| url | https://doi.org/10.1029/2020SW002588 |
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