Description: Data, tools, and tips for mapping Ontario, Canada, and beyond with open source GIS
Data, tools, and tips for mapping Ontario, Canada, and beyond with open source GIS
Continuing on from the previous post, this entry will describe a workflow for saving the satellite image mosaic created using Google Earth Engine to an RGB raster file. The image will then be processed to scale its values, and tiled for use as a web map layer.
After running the GEE script from the last post, prepare a layer for export by selecting bands from the rgb layer and sorting them in RGB format (i.e. bands 4, 3, 2). The resulting RGB layer can then be exported to a GeoTiff (requires Google Drive with sufficient storage available) by additionally running the code below and then clicking Run > Set Output in the Tasks panel. Note that the export may take quite a long time to run (in my case 39 mins), but once started the GEE editor can be closed. For startin