Detecting Relationship between Night Time Light (NTL) Data and Normalized Difference Vegetation Index (NDVI) values in Khoms city, Libya

Abstract

This is an environmental study to show the spatial and temporal relationship between the optical density of population growth and decrease in vegetation cover in Al-Khums city, Libya. Relative to vegetation density, Landsat-8 satellite images were used and were extremely useful in understanding the temporal and spatial change of vegetation (NDVI) accurately by selecting cloud free images. Comparing the relationship between them using linear analysis showed that the relationship was negative during the study period, and the discrepancy between the areas of light density (population density) and distribution of vegetation was clear, noting that soil erosion and lack of vegetation can also be the result of overgrazing or open quarries in the study area