Urban evolution becomes a space-transforming agent capable of changing Normalised Difference Vegetation Index(NDVI)and Land Surface Temperature(LST)emissivity reflectance on the land surface.Therefore,this study ident...Urban evolution becomes a space-transforming agent capable of changing Normalised Difference Vegetation Index(NDVI)and Land Surface Temperature(LST)emissivity reflectance on the land surface.Therefore,this study identifies NDVI and LST variations locally,but it can also be applied in other cities on a global scale.In general,it aims to analyse NDVI and LST on surface areas of avenues and urban streets of Sector 1,located in downtown Passo Fundo,in the southern region of Brazil,from 2013 to 2020.Methodologically,treated Landsat 8 satellite images were used to obtain NDVI and LST variations in this study.Subsequently,data of 80 points in the avenues and streets of Sector 1 were collected over a distance of 100 meters spaced from each point.These data were statistically analysed concerning the dispersion of NDVI and LST from 2013 to 2020.The results revealed a strong interaction between NDVI and LST,demonstrating the need to conserve urban vegetation to improve temperature,which positively favours urban ambience indexes.展开更多
The discussion about the use of the bicycle as a means of transport has been gaining importance on a global scale,although countries like Brazil still have urban mobility difficulties caused by how urban densification...The discussion about the use of the bicycle as a means of transport has been gaining importance on a global scale,although countries like Brazil still have urban mobility difficulties caused by how urban densification occurs,the growing number of motor vehicles and the lack of space for the construction of cycle paths in cities.The general objective of this manuscript is to analyze the result of public policies aimed at the implementation of bicycle paths,with the“Passo Fundo Vai de Bici”Program created to investigate the variations in intensity in relation to the areas served by the current incentive for active cycling mobility in the city of Passo Fundo(South of Brazil).Methodologically,Google Earth Pro satellite images were used to map the existing bike paths in the city.Subsequently,geographic coordinate points and altitudes of specific locations on the bike paths and bike sharing stations were collected,generating a database,transferred to the Qgis 3.10 software for the preparation of heat maps.The results showed the lack of integration between the cycling systems analyzed by the distance factor,needing to encourage discussions about its expansion and functionality,consolidating it as an urban public policy of local functionality to foster sustainable transport.展开更多
文摘Urban evolution becomes a space-transforming agent capable of changing Normalised Difference Vegetation Index(NDVI)and Land Surface Temperature(LST)emissivity reflectance on the land surface.Therefore,this study identifies NDVI and LST variations locally,but it can also be applied in other cities on a global scale.In general,it aims to analyse NDVI and LST on surface areas of avenues and urban streets of Sector 1,located in downtown Passo Fundo,in the southern region of Brazil,from 2013 to 2020.Methodologically,treated Landsat 8 satellite images were used to obtain NDVI and LST variations in this study.Subsequently,data of 80 points in the avenues and streets of Sector 1 were collected over a distance of 100 meters spaced from each point.These data were statistically analysed concerning the dispersion of NDVI and LST from 2013 to 2020.The results revealed a strong interaction between NDVI and LST,demonstrating the need to conserve urban vegetation to improve temperature,which positively favours urban ambience indexes.
基金the Center for Studies and Research on Urban Mobility-NEPMOUR,IMED and PPGARQ/IMED for supporting this researchthe Fundação Meridional-IMED for the funding provided through the institutional productivity grant+1 种基金the National Council for Scientific and Technological Development of Brazil for the research productivity grant(Process:313040/2020-6)the Research Support Foundation of the State of Rio Grande do Sul(FAPERGS)for the research grant(Process:21/2551-0000992-6).
文摘The discussion about the use of the bicycle as a means of transport has been gaining importance on a global scale,although countries like Brazil still have urban mobility difficulties caused by how urban densification occurs,the growing number of motor vehicles and the lack of space for the construction of cycle paths in cities.The general objective of this manuscript is to analyze the result of public policies aimed at the implementation of bicycle paths,with the“Passo Fundo Vai de Bici”Program created to investigate the variations in intensity in relation to the areas served by the current incentive for active cycling mobility in the city of Passo Fundo(South of Brazil).Methodologically,Google Earth Pro satellite images were used to map the existing bike paths in the city.Subsequently,geographic coordinate points and altitudes of specific locations on the bike paths and bike sharing stations were collected,generating a database,transferred to the Qgis 3.10 software for the preparation of heat maps.The results showed the lack of integration between the cycling systems analyzed by the distance factor,needing to encourage discussions about its expansion and functionality,consolidating it as an urban public policy of local functionality to foster sustainable transport.
