Geographic Raster

Geographic raster data are commonly used for representing and managing imagery, digital elevation, and other phenomena which is widely used in hydrological research. The raster can have a single or multiple bands (or layers) of data. A band is represented by a single matrix of cell organized into rows and columns where each contains a value representing information. We choose the GeoTIFF file format to represent the geographic raster data in HydroShare. The GeoTIFF refers to TIFF files which have geographic data embeded as tags within the TIFF file. The geographic data can then be used to position the image in the correct location and geometry on the screen of a geographic information display. Click here to browse a Geographic Raster Resource example.