- 著者
-
中村 和之
- 出版者
- 函館大学
- 雑誌
- 函館大学論究 (ISSN:02866137)
- 巻号頁・発行日
- vol.53, no.1, pp.59-69, 2021-10
During the 13th and 14th centuries, the water in the lower Amur basin began to freeze. This climatic event lasted from the eighth month of the lunar calendar until the fourth or fifth month of the following year when thawing began. Such records are found in the Chinese historical sources of the 13th and 14th centuries. Compared with early 20th century data, it can be seen that the climate in the 13th and 14th centuries was cold. The example shows evidence of cooling in the high latitudes of Eurasia.