QUANTIFICATION OF HEAT ISLAND POTENTIAL OF HILLSIDE DEVELOPMENT AREAS USING SIDE-LOOKING AIRBORNE MSS DATA AND ITS RELATIONSHIP TO LAND COVER CONDITIONS

Abstract

This paper proposes the "heat island potential (HIP)" as a new index to evaluate the sensible heat flux from all the surfaces in an urban area. We calculated the HIP of hillside residential development areas in Kawasaki City, Japan, which had various types of land coverage, using thermal images of downward- and side-looking airborne multi-spectral scanner (MSS) data obtained on a winter day with a clear sky. In addition, we analyze the relationship between the diurnal change in HIP and various land cover conditions, i.e., the vegetation cover ratio and floor area ratio.