Remote sensing applications to the analysis of urban microclimates

被引：0

作者：

Dousset, N ^{[1
]}

Gourmelon, FO ^{[1
]}

机构：

[1] Univ Hawaii Manoa, Hawaii Inst Geophys & Planetol, Honolulu, HI 96822 USA

来源：

IEEE/ISPRS JOINT WORKSHOP ON REMOTE SENSING AND DATA FUSION OVER URBAN AREAS | 2001年

关键词：

D O I：

暂无

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

Summertime microclimates of Paris and Los Angeles are analyzed in order to better understand the physical processes that determine the energy fluxes and their interaction at the urban surface. Statistical images are extracted from time series of NOAA-AVHRR thermal IR images. They reveal distinct temporal and spatial microclimates characteristics. Fractional images of land-cover classification are constructed from multispectral SPOT images, using GIS systems. This data fusion shows: 1) the influence of land-cover, especially in downtown business and industrial districts that display heat-island larger than 8degreesC; 2) the temperate effect of water; 3) the negative correlation between afternoon surface temperatures and fractional vegetation index, which confirms the cooling effect of urban parks.

引用

页码：168 / 172

页数：5