Modeling solar Lyman alpha irradiance.
Abstract
Solar Lyman alpha irradiance is estimated from various solar indices using linear regression analyses. Models developed with multiple linear regression analysis, including daily values and 81-day running means of solar indices, predict reasonably well both the short-and long-term variations observed in Lyman alpha. It is shown that the full disk equivalent width of the He line at 1083 nm offers the best proxy for Lyman alpha, and that the total irradiance corrected for sunspot effect also has a high correlation with Lyman alpha.
- Publication:
-
NASA Conference Publication
- Pub Date:
- August 1990
- Bibcode:
- 1990NASCP3086..189P
- Keywords:
-
- Irradiance;
- Lyman Alpha Radiation;
- Models;
- Regression Analysis;
- Solar Activity Effects;
- Solar Corona;
- Solar Radiation;
- Sunspots;
- Estimating;
- Radiometers;
- Solar Maximum Mission;
- Solar Mesosphere Explorer;
- Solar Physics;
- Solar UV Radiation: Variations;
- Solar UV Radiation: Lyman Alpha