地理学报 ›› 1990, Vol. 45 ›› Issue (1): 22-30.doi: 10.11821/xb199001003

• 论文 • 上一篇    下一篇

历史文献中气候信息的评价

葛全胜, 张丕远   

  1. 中国科学院,国家计委地理研究所,北京
  • 出版日期:1990-01-15 发布日期:1990-01-15
  • 基金资助:

THE EVALUATION ON CLIMATIC INFORMATION IN THE HISTORICAL LITERATURES

Ge Quansheng, Zhang Peiyuan   

  1. Institute of Geography, Chinese Academy of Sciences, Beijing
  • Online:1990-01-15 Published:1990-01-15

摘要: 本文对我国史料中所载气候信息进行了评价。结论是:①对于史料所载的某一气候事件,我们将其状态分辨取越细,所获取的信息越少;②在分析过程中,对误差要求低些,所获取的信息反而高些;③就已记录的气候事件而言,官方组织的记载所提供的气候信息最多,私人笔札次之,方志类书最次。

关键词: 气候信息, 熵, 评价, 准确率

Abstract: This paper documents methods of evaluating the climatic information extracted from Ch-inese historical literatures. Relevant sources include local gazettes, official histories, memorial to the emperor and personal and private writings. Some indexes has been developed to modify climatic information in three aspects, they are: the time interval between the climatic event occurred and when it was recorded, the distant between the event and where it was recorded, and the ability in language of the writer's explanation. After some numerical treatments, it shows that:(1)The realiability of climatic informa-tion is not only determined by the accuracy of the data, but also by the distribution and resolu-tion of the data. (2) The more grades divided, the more uncertainty will appears. (3) The lar-ger variance schedulled, the more information would be available.

Key words: Climatic information, Entropy analysis, Evaluating and accuracy