Exploiting Four Historical Ca II K Spectroheliogram Archives
Abstract
Here we briefly review the status of the project aimed to analyse the potential of historical Ca II K archives for studies of long-term (decades to a century) solar variability.
- Publication:
-
Coimbra Solar Physics Meeting: Ground-based Solar Observations in the Space Instrumentation Era
- Pub Date:
- April 2016
- Bibcode:
- 2016ASPC..504..227C