Satellite and Ground-Based Sensors for the Urban Heat Island Analysis in the City of Rome

被引：86

作者：

Fabrizi, Roberto ^{[1
]}

Bonafoni, Stefania ^{[1
]}

Biondi, Riccardo ^{[2
]}

机构：

[1] Univ Perugia, Dept Elect & Informat Engn, I-06125 Perugia, Italy

[2] Natl Space Inst, DTU Space, DK-2100 Copenhagen O, Denmark

来源：

REMOTE SENSING | 2010年 / 2卷 / 05期

关键词：

Urban Heat Island; satellite remote sensing; weather stations; air temperature; LAND-SURFACE-TEMPERATURE; AATSR; EMISSIVITY;

D O I：

10.3390/rs2051400

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this work, the trend of the Urban Heat Island (UHI) of Rome is analyzed by both ground-based weather stations and a satellite-based infrared sensor. First, we have developed a suitable algorithm employing satellite brightness temperatures for the estimation of the air temperature belonging to the layer of air closest to the surface. UHI spatial characteristics have been assessed using air temperatures measured by both weather stations and brightness temperature maps from the Advanced Along Track Scanning Radiometer (AATSR) on board ENVISAT polar-orbiting satellite. In total, 634 daytime and nighttime scenes taken between 2003 and 2006 have been processed. Analysis of the Canopy Layer Heat Island (CLHI) during summer months reveals a mean growth in magnitude of 3-4 K during nighttime and a negative or almost zero CLHI intensity during daytime, confirmed by the weather stations.

引用

页码：1400 / 1415

页数：16

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