摘要
对云南天文台1964年1月至1996年12月期间的太阳黑子相对数与《Solar-Geophysical Data》上对应的数据进行了比较,结果发现,云南天文台的黑子相对数,在整体上及各个太阳活动周内与《Solar-Geophysical Data》上的数据在较大程度上是线性相关,相对误差一般小于10%,在第21太阳活动周内,二者符合得极好,第20太阳活动周内,符合得较好(统计上略微偏小),第22太阳活动周最次(统计上略微偏大)。
The sunspot numbers have been observed at Yunnan Observatory by tracting the out- line sketchs of sunspots with hands since 1957.The comparison of sunspot numbers issued by Yunnan Observatory and those from the Solar Geophysical Data report has been made in this paper.It is shown that the sunspot numbers of Yunnan Observatory are high—linearly correlated with those from the Solar Geophysical Data report at the whole investigated inter- val from Jan.1964 to Dec.1996 during the solar cycles 20,21 and 22.The relative deviation is generally less than 10 percent.The observational wolf curve of sunspot numbers of Yun- nan Observatory almost overlays the curve of those from the Solar Geophysical Data report in the solar cycle 21,is much closer to in the solar cycle 20,and has less difference in the so- lar cycle 22.
出处
《云南天文台台刊》
CSCD
1998年第4期8-14,共7页
Publications of the Yunnan Observatoty
