#Google earth pro contour lines how to

In general, Google Earth elevation data can be used only for investigation and preliminary studies with low cost. The obtained accuracies for terrain with small height difference can be used for preparing large area cadastral, city planning, or land classification maps. The results showed that the accuracies for the prepared DEMs are suitable for some certain engineering applications but inadequate to meet the standard required for fine/small scale DEM for very precise engineering study. Furthermore, we will export the Contour map in KML to visua. The reference data was collected with total station survey. In this tutorial, we will learn how we can extract the contour lines using DEM in QGIS software. Can Google maps show contour lines Google Maps now has Terrain View, which enables users to see terrain maps for an area. Step 2 Select ‘Map type’ from the Drop down list in the ‘Map information’ section.

#Google earth pro contour lines how to

All these accuracy statistics were computed using the ground coordinates of 200 reference points for each region of the case study. How do I change the map in Google Earth Pro Let’s learn how to change map type: Step 1 Go to Add or Edit Map page. The accuracy of the Google earth derived elevation data are reported using root mean square error (RMSE), mean error (ME) and maximum absolute error (MAE). The case study consisted of three different small regions in the northern beach in Egypt. This paper proposes a method of generating DEM by using Google Earth elevation data which is easier and free. Moreover, DEMs are used often in geographic information systems (GIS), and are the most common basis for digitally-produced relief maps.

Contour lines, slope - aspect maps are part of their many uses. Digital Elevation Models (DEMs) comprise valuable source of elevation data required for many engineering applications.