Historic records of meteorite falls in China and their time-series analysis

• Main Authors: Shuyuen Chang, Zhijun Yu
• Format: Report
• Language: English
• Published: Department of Geology, Peking University 1981
• Subjects: Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1221; http://id.nii.ac.jp/1291/00001221/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1221&item_no=1&attribute_id=18&file_no=1

The time distribution of meteorite falls in China is shown to be uneven on the basis of the historic records compiled in "Table of historic records of ancient astronomical phenomena in China". The time series analysis is made on the frequency of the meteorite falls of 580 records in ancient to recent China. The correlation function is calculated by means of a computer on the frequency of meteorite falls in one year and in 10 years in the two intervals of time; 620-1499,and 1479-1924. The period of meteorite falls is determined from the time intervals between the successive peaks of the correlation function. The presence of two periodicities in meteorite falls is concluded; a long cycle of 240 years and a short cycle of 60 years.