In this video we will learn how to obtain DEM from google earth engine and also classify this DEM with suitable elevation ranges, visualize it and compute area. This is essential in calculations in hydrological analysis, WECS/DHM Hydest, MHSP, CAR etc methods. The code used in google earth engine is given below:
// Define Region of Interest (ROI)
var ROI = ee.Geometry.Rectangle([82.35, 29.24, 83.8, 30.03]);
// Load SRTM data and clip it to the ROI
var srtm = ee.Image("USGS/SRTMGL1_003").clip(ROI);
// Add ROI to the map for visualization
Map.addLayer(ROI, {}, 'ROI');
// Add the SRTM DEM to the map for visualization
Map.addLayer(srtm, {min: -50, max: 3000}, 'DEM');
// Export the clipped DEM to Google Drive
Export.image.toDrive({
image: srtm,
description: 'Free_state',
region: ROI,
folder: 'earthengine',
scale: 30,
maxPixels: 1e13
});