- 著者
- FUJIBE Fumiaki MATSUMOTO Jun SUZUKI Hideto
- 出版者
- The Association of Japanese Geographers
- 雑誌
- Geographical review of Japan series B (ISSN:18834396)
- 巻号頁・発行日
- vol.92, no.2, pp.72-83, 2020-03-31 (Released:2020-03-31)
- 参考文献数
- 34
- 被引用文献数
- 2 5
A series of statistical analyses are made to find the dependence of heat and cold mortalities on the temperature and economic states of municipalities in Japan, using vital statistics data for 18 years, from 1999 to 2016. A partial correlation analysis for 1,207 municipalities over the country has indicated that heat and cold mortalities are positively and negatively correlated with summer and winter temperatures, respectively, while they are both negatively correlated with annual income and positively correlated with municipality population. These features are essentially common to genders, age groups, and regions, and indicate that heat and cold mortalities depend on both climatic and socioeconomic factors. An additional analysis of 151 wards in Tokyo and 12 other government-designated cities has also shown a correlation between heat/cold mortality and income; in particular, exceptionally high mortality is found in some wards which have areas with poor living conditions.
- 著者
- FUJIBE Fumiaki MATSUMOTO Jun SUZUKI Hideto
- 出版者
- The Association of Japanese Geographers
- 雑誌
- Geographical review of Japan series B (ISSN:18834396)
- 巻号頁・発行日
- vol.91, no.1, pp.17-27, 2018-06-29 (Released:2018-06-30)
- 参考文献数
- 19
- 被引用文献数
- 4 12
Regional and seasonal features and the interannual variations of heat stroke mortality in Japan are examined using the Vital Statistics of Japan from 1999 to 2014. We found that heat stroke mortality has different spatial patterns and different dependence on temperature, according to age groups. For the age group under 60, mortality is positively correlated with seasonal mean temperature and is higher in the southern regions of Japan, while the mortality of the age group 80 and over is positively correlated with summer peak temperature, being high in some prefectures in northern to central Honshu, the main island of Japan. The latter group also shows larger interannual variations and a higher increasing trend than the former. As for seasonal variation, heat stroke mortality is high in July–August, with a peak period delay northward, which corresponds to a later temperature peak. Moreover, mortality tends to be higher in July than August by 40–50% even if the monthly mean temperature is equal. These findings are expected to provide a statistical basis to cope with heat load disasters in Japan.