6.6.1. Mosaic

The Mosaic (Data Management) tool allows multiple raster layers to be combined with an existing raster dataset, while the Mosaic to New Raster (Data Management) tool allows multiple raster layers to be combined together to create a new raster dataset. The input raster images can vary in resolution and extent, but the defined output resolution may cause some input images to increase or decrease in resolution, sometimes leading to a loss in information. Also, the input rasters must have the same predefined coordinate system and the same number of bands.