Survey of land surface temperature changes and evapotranspiration in relation to the standardized vegetation index using GIS (Case study: Minoodasht city)

The purpose of this study is to investigate the changes in land surface temperature and evapotranspiration in relation to the standard vegetation cover index using GIS in Minoodasht city. In this study, we used satellite images of the Terra Modis satellite for the years 2001–2016. The satellite image is from January 1, 2005 to January 31, 2016. To evaluate the Seabull model, evapotranspiration was calculated using Penman Monteith and Hargreaves Samani methods and calculated using vegetation growth coefficient and compared with the evapotranspiration obtained from the Seabull algorithm and also to estimate the ground surface temperature of the images. Landsat 5 band 6 satellite which is thermal or thermal band was used. The results showed that the parameter of the coherent vegetation and the surface temperature of the earth changes in the opposite direction to evapotranspiration. So that in areas with good and dense vegetation and low ground temperature, evapotranspiration is more than other areas.