GG251 Lecture Notes - Lecture 6: Openstreetmap, Google Map Maker, Gadjah Mada University
Document Summary
Week 6, lecture 2 (no lecture monday because of thanksgiving) Geospatial web refers to convergence of geographic information and geo-technologies, with the services and data provided by the internet. Enables anyone with access to internet to use the information, anyone can collect, search, share, Unique: potential to aggregate multiple, disparate data sets. Data can be drawn from government agencies, private industry, and general public. Geospatial web enables users to voluntarily add own geographic information. Crowdmapping= ushadidi invention that allows general public to create/update maps. Used in haiti earthquakes to locate crumbled buildings, and stranded people. Open street map local residents create map of their neighbourhoods, can be quite accurate. Provide wide range of location based services to consumers. Map and monitor the acitvites or locations of wildlife and other resources. Inaccuracies of attribute data (both horizontally and vertically) Too much information and problem of searching, retrieving, and displaying; poor cartography=
