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Remote Sens. 2010, 2(5), 1400-1415; doi:10.3390/rs2051400

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

1
Department of Electronic and Information Engineering, University of Perugia, via G. Duranti 93, 06125 Perugia, Italy
2
DTU Space, National Space Institute, Juliane Maries Vej 30, 2100, København Ø, Denmark
*
Author to whom correspondence should be addressed.
Received: 21 February 2010 / Revised: 28 April 2010 / Accepted: 14 May 2010 / Published: 20 May 2010
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Abstract

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.
Keywords: Urban Heat Island; satellite remote sensing; weather stations; air temperature Urban Heat Island; satellite remote sensing; weather stations; air temperature
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Fabrizi, R.; Bonafoni, S.; Biondi, R. Satellite and Ground-Based Sensors for the Urban Heat Island Analysis in the City of Rome. Remote Sens. 2010, 2, 1400-1415.

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