Climate variation from medieval to recent times in Japan Europe

国际数据库Euro-clim通过这项研究进行处理。收集来自欧洲和日本的气候灾害和异常天气。进一步，利用一些气候基础，重建了从中世纪到近代的气候变化。主要结果如下：1）从天气描述方法的历史变迁和地域差异中，阐明了天气术语、时间和精度的特点; 2）通过对18世纪世纪冬季逐日天气的天气气候学分析，明确了18世纪冬季天气型频繁出现; 3）阐明了日本也存在“中世纪暖期”，4）从厄尔尼诺与日本气候的关系来看，厄尔尼诺盛行的时期对应于冷湿条件; 5）在“小冰期“最冷的蒙德极小期，日本冬季气候与欧洲相似，但夏季气候与欧洲相似; 6）在“无夏之年：1816年，“东亚并不酷。

International data base called Euro-clim was processed through this study. That collects climate hazards and unusual weathers from Europe and Japan. Further, using some climate bases, climate variation from medieval to recent times is reconstructed. The main results are as follows.l) Characteristics of weather term, time and accuracy are clarified from historical change and areal difference of the descriptive method of weather.2) On the synoptic climatological analysis of the daily weather of the winter in the 18th century, it is clear that winter weather pattern appeared frequently in those times.3) It is clarified that there was "Medieval Warm Period" also in Japan, by the analysis of long term climate hazards data.4) From the relation between the El Nin^^-o and climate of Japan, the period in which El Nino prevails corresponds to cool and wet condition.5) In Maunder Minimum Period, the coldest period in the "Little Ice Age, " winter climate was similar between Japan and Europe but in summer.6) In "Year without summer : 1816, " it was not cool in Eastern Asia.