Читать книгу Sustainable Development Practices Using Geoinformatics - Группа авторов - Страница 22

LST plays an important role in local weather phenomena. The study area was also analyzed for the changes in LST due to rapid urbanization in the study area during 2001 to 2017. LST shows a direct relationship with the built-up area. Moreover, with the increase in built area, there is gradual rise in average surface air temperature in Barasat municipal area. The temporal variation in LST as analyzed from remote sensing data are shown in Figure 1.7. It is evident from the LST obtained from analysis of temporal remote sensing images that in the year 2001, the minimum and maximum temperature was around 16.1°C and 21.9°C with average of around 19°C in the study area. Moreover, in the year 2011, the LST increased to 26.3°C as compared to maximum of 21.9°C in the year 2001 with an average of 22.3°C. However, the rise in LST of the study area for the year 2017 was observed around 20.0°C as lower value and 27.1°C as the higher with an average of around 23.5°C.

Figure 1.7 Land Surface Temperature (LST) map for the year 2001, 2011, and 2017.