Читать книгу Sustainable Development Practices Using Geoinformatics - Группа авторов - Страница 24

We have analyzed the Barasat municipality for Urban Heat Island (UHI) formation and found that, although it is a small city in comparison to Mega city like Delhi, still, it is showing a very clear UHI formation over the study area (Figure 1.11). Temporal MODIS night time LST product (MOD11A1) downloaded from USGS were used to assess the UHI formation in Barasat. The plotted graph as shown in Figure 1.11 is clearly showing the formation of UHI in the year 2001 with lesser flattening in the center of the city, which gradually increased in 2011 and 2017. Moreover, for the same time period, Landsat data was also analyzed for daytime UHI formation, and it was found that, although UHI formation is subdued in comparison to the night time UHI, still, it is significant enough to be reported.

Figure 1.8A The relationship pattern between NDVI and LST from center to outward (north, south, east, and west) of Barasat municipality for the year 2001.

Figure 1.8B The relationship pattern between NDVI and LST from center to outward (north, south, east, and west) of Barasat municipality for the year 2011.

Figure 1.8C The relationship pattern between NDVI and LST from center to outward (north, south, east, and west) of Barasat municipality for the year 2017.

Figure 1.9 Relationship of LST with LULC classes.