The Flare Irradiance Spectral Model - Version 2 (FISM2) | CU Experts

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) has recently been; been released. FISM2 is an empirical model of the solar ultraviolet; irradiance created to fill spectral and temporal gaps in the; measurements, where these measurements are infrequent as they need to be; made from space due to their absorption in the planetary atmospheres.; FISM2 estimates solar ultraviolet irradiance variations due to solar; cycle, solar rotation, and solar flare variations. 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. FISM2 is also improved to 0.1 nm; spectral bins across the same 0-190 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.

Chamberlin PC; Eparvier FG; Knoer V; Leise H; Pankratz A; Snow M; Templeman B; Thiemann EMB; Woodraska DL; Woods TN

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