HEMISPHERIC SUNSPOT NUMBERS RN AND RS FROM 1945-2004: EXTENDED ANDIMPROVED CATALOGUE

摘要

We present the extended and improved catalogue ofrnhemispheric Sunspot Numbers Rn and Rs covering therntime span 1945-2004. The data set is based on sunspotrndrawings from the Kanzelh?he Solar Observatory (KSO)rnand the Skalnate Pleso Observatory (SPO). Results fromrna cross-validation with the international hemisphericrnsunspot numbers provided by the Sunspot Index DatarnCenter and available for the time span 1992-2004, con-rnfirm the high quality of the merged data set compared tornthe original catalogue based solely on KSO data (Temmerrnet al. 2002). The application of the data is presentedrnfor investigations concerning possible N-S asymmetriesrnincluding solar cycles 18-23.