ملخص البحث :

In this paper, space image of the Quick, Bird satellite of a pixel size 0.6m*0.6m for the year 2007 were merge the layers through the layer stack process from seven layers to three layers and combined in color composites using ERDAS Imagine Ver. 9.2. Also monitoring ground control points with coordinates E, N, monitored by the Differential Ground Position System (DGPS) device and these points are processed through the OPUS site from the internet. The results of the tests show that the proposed strategy improves the contrast of the most essential difficulties in image processing and perform digital enhancement of the satellite image through a filter suitable to show the edges of the image appropriately, edge detect through the process principle components. This study presents a method for creating a highresolution satellite image with corrected coordinates for the aim of creating a surveying map that includes all terrain elements and landmarks in the study area. The production of a geometric and spatial resolution image capable of producing a map of cities.

ملخص البحث :

Cadastral maps are considered as a basic part of the land management infrastructure in the most of countries yet. However there is misunderstanding about their general characteristics and role. Due to the wide coverage of the urban expansion of different spatial systems and cadastral maps, it's so difficult to describe a "typical" map, which was range from1:500 to 1:10,000 scales. Georefrencing is one of the first steps necessary to make any mapping work based on scanned maps or any aerial image that does not have coordinates, thus the map to be used should be returned to its geographically adjuster location based on their information attached to the map. In this study, space image of the quick bird satellite 0.5m × 0.5m for the year 2015 Projection: UTM, Spheroid: WGS84and an old typical map for study area, Projection: UTM, Spheroid: CLARCK 1880, for the year 1946 and scale 1: 2500, after converting it to UTM and WGS84 in ArcGIS were used. Some points of the study area were compared with coordinates monitored by DGPS. Analysis of the mathematical results from cartesian coordinates showed that the standard deviation values of ΔE and ΔN were 0.262 m and 0.381 m, respectively.The horizontal coordinates of the new map were also compared with points in the study area monitored using the DGPS device. The difference rates and the standard division of ΔE &ΔN were -0.044 m and0.026 m and (0.344 m &0.292 m), respectively.

ملخص البحث :

This study was carried out in order to identify and map the temporal changes in the land covers in Hilla province using Remote Sensing and GIS. Two images were used of land sate taken in Quick Bird Satellite acquired for the ETM sensor taken on 15 April 2015 and 15 April 2007 with spatial accuracy (0.6 m). These were used as reference sources in the selection of some classification samples after matching them with the Landsat 8 above. In this research using topography maps of the study area (Hilla) with scale 1/10000 generated from the General Authority as a reference data and achieved compatibility with the image of space after it was corrected geometrically 1976, 2000 and 2014. In this research using Geographic Information System (GIS) software with projection images WGS84 process (based on the projection of the global map and the global geodetic system) and within the 38th north. Supervised classification was used to identify land cover classes dominated in the study area. Change detection results showed an increase in the urban areas, in the year 2015 the area had become 1380.350-hectare unit, while in the year 2007 the area was 318.562-hectare unit. Similarly, the vegetation had increased between 2007-2015 from (132.531 to 507.296) hectare unit. Results indicated that urban land and salinization process can be considered as the important phenomena which positively affected the agriculture area. So, the increase in the cover of water is an important reason of decrease in the arid land, which was due to the increase of urban land reach to 1061.788-hectare unit. Many changes have happened in the quantity of reclaimed land in these arid lands between the two years (2007 and 2015).