How to download SRTM DEM from Open topography 

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In this tutorial, you will learn how to download SRTM DEM from Open topography web portal with a resolution of 30mx30m .
The type of digital elevation data demonstrated in this tutorial is SRTM, which stands for Shuttle Radar Topography Mission. You can download the following three types of DEM data from Open Topography web portal;
1. USGS 1 arc-second Digital Elevation Model
2. USGS 1 meter Digital Elevation Model
3. Copernicus Global Digital Elevation Models
4. NASADEM Global Digital Elevation Model
5. Global Bathymetry and Topography at 15 Arc Sec: SRTM15+ V2.1
6. Global Multi-Resolution Topography (GMRT) Data Synthesis
7. ALOS World 3D - 30m
8. Shuttle Radar Topography Mission (SRTM) Global