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Although it requires signing up for an account, you can do this through Google Earth Engine's API quite easily. They give comprehensive tutorials and scripts for how to do so, as well as the data products you are asking for. You can remove the cloudy/bad pixels from the NDVI product by adjusting the script of this tutorial for the data layers you'd like to ...


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I know this question is old, but I have just uploaded a Matlab toolbox that will compute width from either 1) input channel mask or 2) input banklines (your case). It has a number of other tools that might be helpful to you; check it out here. You will probably want to define a centerline (for parameterization of your along-stream variables i.e. width). If ...


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Is there a particular reason why you want to use particle swarm optimization in this case? If what you really want is to find the least-cost paths, you may consider using Dijkstra's algorithm. Here is one possible implementation, written in MATLAB (there are many): https://www.mathworks.com/matlabcentral/fileexchange/20025-dijkstra-s-minimum-cost-path-...



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