Maps for monitoring the spatial change of land use in the city of Najaf during the years (1997 and 2019)

Abstract

         Spatial monitoring maps of change in land use are among the objective maps that have great importance in knowing the spatial change that occurs in the distribution of land use items, whether it is a change towards expansion or contraction, and the consequent necessity of providing the urban population with services that it lacks or legalizing strict environmental controls. which the urban dweller is obliged to follow to prevent the spatial overreach of one use over another The accuracy of drawing these maps has increased after the developments in graphical geographic techniques within the GIS environment, in addition to the increase and diversity of the accuracy of the sources that are relied upon in drawing these maps, especially with regard to space visuals that can be considered a record by which one can know The areal extension for uses of its various types and the study of the change in its spatial extension supported by field studies. This study included knowing the changes that occurred in the area of ​​land use in the city of Najaf during the years (1997) and (2019) through the adoption of satellite visuals of the moon Landsat 7 for the year 1997 with an accuracy of (15) m after improvement with one scene that covered the city of Najaf and the visible moon Spot 5 for the year 2019 With an accuracy of (0.6) m. With four scenes that covered the city. Field studies were used to increase the visual interpretation of satellite visuals, in addition to government data. Through this study, it was shown the great potential of GIS in drawing and monitoring the change in the spatial extension of land use by relying on remote sensing techniques.