Studies on Local Climatology (VI) Humidity Distribution and Surface Covers

抄録

The author made a local obser vation of humidity distribution at Uchihara, Ibaragi Prefecture. There is a flat diluvial plateau surface dotted with paddy fields, cultivated fields and coppices. He studied on effects by such surface covers on humidity d stributions in daytime of summer. Differences between them reached 5-10%. And he discussed the magnitude of errors which are unavoidable in a mobile observation. They are caused by microfluctuations of atmospheric conditions and time change during the observation period. In order to lessen the second effect, he attempted a new method of repeated observations at the same piace at different times.