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Flare Irradiance Spectral Model (FISM): Flare component algorithms and results

Chamberlin, Phillip C.; Woods, Thomas N.; Eparvier, Francis G.

The Flare Irradiance Spectral Model (FISM) is an empirical model developed for space weather applications that estimates the solar irradiance at wavelengths from 0.1 to 190 nm at 1 nm resolution with a time cadence of 60 s. This is a high enough temporal resolution to model variations due to solar flares, where few accurate measurements at these w…

Major solar energetic particle events of solar cycles 22 and 23: Intensities above the streaming limit

Lario, D.; Aran, A.; Decker, R. B.

Large solar energetic particle (SEP) events constitute a serious radiation hazard to astronauts and spacecraft systems. It is essential to determine the highest particle intensities reached in SEP events, especially at the energies that pose serious risks to human health and spacecraft performance. It has been argued that the highest particle inte…

Modeling the arrival at Earth of the interplanetary shock following the 12 May 1997 solar event using HAFv2 and 3-D MHD HHMS models

Dryer, M.; Fry, C. D.; Sun, W. +3 more

The 12 May 1997 solar event is used to demonstrate the improvements that have been made in recent years in the accuracy of predicting, in the operational environment, the time of arrival at Earth of solar-caused interplanetary shocks. This event provides a simple test case because it was both well isolated in time from other events and well docume…