Investigation of absorption of solar EUV-radiation in the Earth's atmosphere at altitudes of 100-500 km using solar images in the experiments TEREK-C (CORONAS-I) and SPIRIT (CORONAS-F)
Abstract
The results of measurements of absorption of solar EUV-radiation in the Earth's high atmosphere (100-500 km) using solar images obtained in occultation mode with the TEREK-C telescope on-board the CORONAS-I satellite (1994) and with the SPIRIT telescope/spectroheliograph on-board the CORONAS-F satellite (launched in 2001) are presented. Use of high resolution attenuated solar EUV images recorded in presence of absorption instead of a total flux from the whole Sun allows to determine attenuation height profiles with an accuracy better than 1 km. Possible effects of geomagnetic activity on EUV-absorption data are discussed.
- Publication:
-
Solar Variability as an Input to the Earth's Environment
- Pub Date:
- September 2003
- Bibcode:
- 2003ESASP.535..389S
- Keywords:
-
- Earth Atmosphere;
- Absorption;
- Solar EUV Radiation