Air Temperatures in and near the Small-sized Settlements

Abstract

Air temperature observations were made mainly along the national road, Route 4 in the southern part of Miyagi Prefecture, on cloudless, calm days in 1969, 1970 and 1971, using a car with a Thermister-Thermometer. The results of analysis of the data can be summarized as follows:1) Warmer areas, like ‘heat islands’, were observed in most of the settlements regardless of the city size.2) Differences between the air temperatures at the centers of settlements and those outside of them have been estimated between 0.2 and 1.1°C.3) Local climatic fluctuations caused by the above-mentioned settlements have thus been taken away and new distribution of air temperatures from Sendai City to Shiroishi City has been obtained along the national road, Route 4. This result may be applied to other cases or other regions.