ESTIMATION OF ANTHRPOGENIC HEAT AND VAPOR EMISSION, AND THE IMPACT ON LOCAL METEOROLOGY

Abstract

To evaluate the impact of urban activities on urban climate, anthropogenic vapor emission as well as anthropogenic heat emission in Tokyo was estimated, and urban climate in summer was simulated. The following results are obtained.
(1) In winter, anthropogenic heat emissions from residential area are greater than those from business area in summer.
(2) The maximum value of anthropogenic vapor emission exceeds 400W·m^-2 in summer. This value is the same level of anthropogenic heat emission in the central Tokyo.
(3) Air temperature is increased about 0.5°C and the water vapor mixing ratio is increased 0.1g·kg^-1 due to anthropogenic heat and vapor in central Tokyo.
(4) At north of central Tokyo, the water vapor mixing ratio is increased. Anthropogenic vapor emissions, however, have little contribution to the increasing.