Скачать или смотреть bathDEM walkthrough

0:00-8:40 Bathymetry Image Extraction using Photoshop
8:41-11:45 Obtaining Landsat images from earthexplorer.usgs.gov for bathymetry map source year
11:46-14:53 Starting arcGIS and importing Landsat imagery composite TIFFs or merging single band TIFS
14:53-20:28 Importing bathymetry contour PNGs and georeferencing
20:28-26:10 Creating contour lines and tracing bathymetry contour PNG
26:11-29:39 Creating a polygon of the lake shore using trace function
29:43-31:29 Generating points along lines
31:29-33:44 Using points to interpolate a BathymetryDEM - using Natural Neighbor
33:43-35:46 Using Raster Functions clip tool to refine our interpolated BathymetryDEM
35:46-41:38 Using Int spatial analysis tool to export BathymetryDEM raster values as a CSV
41:-46-43:26
*Below is just my take, I haven't confirmed if this is the method we can use for dry periods*
43:28-52:15 Clipping "Dry" Landsat Lake surface polygon to "Historic" Bathymetry DEM to generate a "Dry" CSV for comparison of bathymetry in wet vs dry periods