Please use this identifier to cite or link to this item:
|Title||Positional Accuracy of the Google Earth Imagery In The Gaza Strip|
|Title in Arabic||Positional Accuracy of the Google Earth Imagery In The Gaza Strip|
Google Earth provides an open source, easy to access and cost free image data that support map interest community. The aim of this research is to estimate the Google Earth horizontal positional accuracy in Khan Younis City as a study area to evaluate this free source of data. Since GPS provides an accurate measurement of coordinates on the same ellipsoid as Google Earth, it is used to check the spatial horizontal accuracy of Google Earth. This is carried out by comparing Google Earth measured coordinates with their counterparts from Global Positional System (GPS) measured coordinates. A sample of 40 check points distributed in the City is chosen for this purpose. Linear error of horizontal positional accuracy is computed and is found to be 39.24 m. This value is very critical and disappointed to find such difference in accuracy between Gaza and the other world. So this study recommends that although Google Earth represents a powerful and attractive source of positional data, but it is critical to use it for studies otherwise for limited issues in the Gaza Strip. In the Gaza Strip, Google Earth should not be used in measurement of coordinates and when it is needed to use Google Earth in spatial data, it is recommended to use it in investigation and preliminary studies taking into account the scale of error computed in this research.
|Series||Volume: 4, Number: 5|
|Publisher||Journal of Multidisciplinary Engineering Science and Technology|
|Files in this item|