HIS: Golden horn GIS

Reha Metin Alkan, Yunus Kalkan and Cengiz Erdogan, Istanbul, Turkey have designed a geo-database accessible both via desktop computers connected to the internet and wireless handheld mobile GIS devices used in the field as part of an ongoing project to bring to city managers, citizens, tourists and others geo-data of the Golden Horn area of Istanbul, Turkey. Due to its increasing popularity, the creation of an information system was thought to be beneficial for managing the Golden Horn area, and so the Halic Information System (HIS) came into existence. To create the HIS database, nine digital 1:5,000 orthophoto maps made in 1996 were seamlessly joined into a mosaic. Web-based GIS gives people all over the world access to map data stored at one location or over several distributed servers, via the Internet and without the need to purchase GIS software.