The Sunspot and Auroral Activity Cycle Derived from Korean Historical Records of the 11th–18th Century |
| |
| Authors: | E H Lee Y S Ahn H J Yang K Y Chen |
| |
| Institution: | (1) Yonsei University Observatory, Seoul, 120–749, Korea;(2) Korea Astronomy Observatory, Daejeon, 305-348, Korea;(3) University of Florida, Gainesville, FL, 32611-2055, U.S.A. |
| |
| Abstract: | Historical records of sunspots and aurorae are valuable information to examine variations of solar activity and the terrestrial
climate on a long-term scale. We have collected the historical records of Korea during the 11th–18th century. Through a power-spectrum
analysis of these data, we have found solar activity cycles, which coincide with the Schwabe cycle and the Gleissberg cycle
on short and long-term periods, respectively. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
