Create DEM and Contours from Google Earth and DEM of Difference (Change Detection) using ArcGIS.

[@subhadipkangsabanik5423]

Thank you so much.. This tutorial video is very helpful & informative..

[@engineersmania7353]

You are most welcome

[@engineersmania7353]

thank you.

[@Dr.GAURAVSINGH-dh7ff]

If you don't get elevation from different dates from GPS visualizer, then how you can detect changes in elevation of a particular for a period of time.

[@engineersmania7353]

That is an extremely valid point. You cannot unless you have some other source for elevation. That is the reasin in this tutorial towards the end you dont get definitive results. The purpose of this video is to generate DEM with the help of available tools. I have further refined my DOD analysis using drone data, which is not included in this video.

[@luisalbinez2205]

Hi i have some Qs, how do you take elevations from diferent dates to make the diference? And what is the resolutions of DEMS? TY so much for answers.

[@engineersmania7353]

You don't get elevations from different dates as these elevations has been recorded from a specific mission and time periods such as SRTM etc. If you want elevations from a specific period then you will need to generate the DEM using aerial imagery or SAR Images using photogrammetry softwares.

[@anilkumarsharma8901]

Tumhara office kidhar hain😇😇😇😇😇
Sarey landslide date wise pata chal jayega😇😇 million years ago and next landslide date wise pata chal jayega😇😇😇

[@engineersmania7353]

If you are taking it seriously then you already know, it doesn't work like that.