Influence of urbanization on land surface temperature in Recife city

Engenharia Agrícola

Taciana O. Dos Santos²  Geber B. De A. Moura¹  Bernardo B. Da Silva¹  Leidjane M. M. De Oliveira¹  Celia C. C. Machado¹ 

[1] ,Universidade Federal Rural de Pernambuco Depto. de Tecnologia Rural Recife PE

关键词: urban climate;    Landsat;    ambient comfort;    thermal infrared;    clima urbano;    Landsat;    conforto ambiental;    infravermelho termal;   

DOI  :  10.1590/S0100-69162013000600016

来源: SciELO

【 摘 要 】

Urbanization has caused significant environmental impacts, replacing natural surfaces by buildings, decreasing green vegetated areas, soil sealing and atmospheric pollution which contribute to increase the land surface temperature in such areas. Thus, this study aimed to analyze the influence of urbanization on land surface temperature (Ts) in Recife city - Pernambuco (PE), in Brazil, using the Thematic Mapper (TM) sensor images from Landsat 5 satellite. To perform the study, images of August 4, 1998 and September 6, 2010 were obtained and processed to generate Ts thematic maps of Recife-PE and of two districts of this city (Curado and Casa Amarela), in order to analyze the transformation dynamics that has occurred in the area. Through the profile produced for the study area, a spatial and temporal increase of the Ts surface was noticeable in the suburb-downtown direction: 6°C of difference between these areas. The Casa Amarela district, with high urban concentration, presented the highest Ts values observed (>27°C).

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License