抄録
This paper is a result of the observations carried out at Kumagaya city, about 60km north of Tokyo, during two periods, Nov. 8-10, 1956 and Jan. 24-25, 1957. The discussions treated here are based on the following two assumptions because thermister-thermometers used in these observations had a very small time lag.
1) Diurnal variations of the air temperature during the observation were very small.
2) Observations were statistically in the mutual independence.
The writer has divided the series of observations into several groups applying the test of difference and also they are classified into the high class Hi and low class Li according to the evidence whether mean temperature of each class is higher or lower than that in the whole area respectively. The isoclassline and isothermal-line maps are shown and they are compared with each other. Furthermore, considering the frequency distribution of classes with respect to each point, five types of distribution M+, m+, m0, m-, and M-, were classified.
As a conclusion, it is seen that M+-classes concentrate in the most urbanized area, while M--classes are distributed in the rural field area and m+-, m0-, m--classes in the area between them. Hence it can be ascertained that the type of distribution is closely related to the special character of the area
