地球科学与气候变化杂志

抽象的

Estimation the Influence of Dynamics of Land Surface Temperature on Delhi Urban Heat Island

Mina Babazadeh

Land surface temperature LST, land surface changes, vegetation cover and other land parameters are a significant dynamic in worldwide climate change researches structure. Land surface changes have brought essential changes on to the vegetation cover for cities, as well as urban heat-trapping and raising temperature regimes resulting in unsustainable environments. This study tries to look at urban heat islands issues in Delhi based on thermal remote sensing Landsat data. Thermal Infrared (TIR) Landsat 5, 7 and 8 proved that it is possible observing land temperature which has been touched by different microclimate conditions in the cities. Satellite data has a vital role in the land observation of the surface changes across the world, mainly wherever necessary knowledge isn’t accessible for such observations. This study used Landsat 5, 7 and 8 images to observe unique patterns of land surface temperature and heat island growth in Delhi during (1996, 2003, 2010 and 2017). This study proved that the central part of Delhi facing a low temperature, which is starting from 28°C for and 49°C for suburban part of Delhi which has been covered by rock and new growth settlements areas. Moderately, a low temperature has recorded in vegetation cover and water bodies in the middle part of the Delhi. A central part covered by enough density of vegetation cover and tree cover. The higher temperature has recorded for high dance build-up areas ranges between 48°C and 52°C. The results show that urban heat island growth has transferred from the central part of the city to surrounding areas from 1996-2017. The heat-trapping in the South, South West and North West part of the city due to the high concentration of building and grown societies and industrial units over Delhi caused an It recommended that development authority should consider environmental concern before planning industrial land use and urban growth must be regulated and perpetually monitored.