Countries that wish to implement their own geoportal can take advantage of open-source options (Box IV-6). These provide a single platform for accessing location-based information, using archived and up-to-date infrastructure, socioeconomic, meteorological, disaster and satellite-derived data. Responding to an ESCAP survey, national authorities and agencies said that Geo-DRM portals are essential tools for taking advantage of satellite imagery received from national, regional and international providers. For this reason, the Geo-DRMs have been positioned within the appropriate national authorities. During these tasks, ESCAP has also linked up with ministries and agencies working in similar fields and coordinated with on-going national efforts through existing United Nations and interagency initiatives.