Data availability and file formatUK data are available as img files which are raster image files created by ERDAS IMAGINE that contain one or more layers, called bands, which include multiple image tiles that comprise the image. The files can be opened in all earth observation image processing software including open/free software such as Erdas ER viewer. Data are archived in the directory structure of region/year/format/data for ease of use, xml metadata containing location information are provided with their respective data files.