Kiyoshi Uehara

TL;DR: In this article, the effects of atmospheric stability on flow in urban street canyons were studied using a stratified wind tunnel using a laser Doppler anemometer and a cold wire to measure the flow field and temperature within and above the street canyon.

TL;DR: In this article, the authors measured flow around a single model building and around model city blocks at various wind speeds, and studied Reynolds number indices more appropriate than the building Reynolds number, and found that Reynolds-number independence could be expected for whole flow fields in the modelled urban areas as long as the critical values of Rez0 and z+ were satisfied.

TL;DR: In this paper, the seasonal variations in aerosol concentration and composition were analyzed with meteorological data to clarify the seasonal variation of aerosol concentrations and composition, and it was concluded that air masses from the Chinese continent have brought the greatest amount of anthropogenic pollutants to Korea and Japan.

TL;DR: In this paper, a wind tunnel designed to study the effects of thermal stratification on flow and diffusion in the atmospheric boundary layer has been constructed and three independent temperature systems that control the ambient air temperature (from 12 to 87° C), the temperature profile (gradient up to ∂T ∂z = 25°C m −1 ), and the surface temperature (eight individual floor panels, from 7 to 112°C for each) in the test section.

TL;DR: In this article, the authors investigated the dynamic behavior of stratospheric ozone intrusion processes into the lower troposphere intensive field observations were made during the middle ten days of May 1986 covering the northern Kyushu district.