HR: 13:40h
AN: SA13B-01 INVITED     [Abstracts]
TI: Solar XUV and VUV irradiances: Measurement and Modeling Progress
AU: * Tobiska, W
EM: ktobiska@spacenvironment.net
AF: Space Environment Technologies, 1676 Palisades Dr., Pacific Palisades, CA 90272 United States
AB: Solar soft X-ray (XUV) and Vacuum Ultraviolet (VUV) spectral irradiances are particularly important for space system engineering, aeronomy, and climate change research since these wavelengths deposit their energy in the thermosphere, mesosphere, and stratosphere as well as create the ionosphere. Because solar spectral irradiances are a foundation for understanding scattering and photoabsorption processes in atmospheres and ionospheres, it is important to provide user communities with accurate, precise and time-resolved solar irradiance products. We present an overview of the solar irradiance community's recent space-based measurements and empirical as well as physics-based modeling for short (minutes to hours), medium (hours to days), and long (weeks to months) time scale irradiance variations as related to energy deposition processes for the thermosphere and ionosphere. In addition, we describe the ISO 21348 standard which provides a common process for determining solar irradiances.
UR: http://SpaceWx.com
DE: 7536 Solar activity cycle (2162)
DE: 7538 Solar irradiance
DE: 7549 Ultraviolet emissions
DE: 2479 Solar radiation and cosmic ray effects
DE: 0358 Thermosphere--energy deposition
SC: SPA-Aeronomy [SA]
MN: 2004 AGU Fall Meeting