GEOSPATIAL DATABASE UPDATING SYSTEM with WMS and DIRECT CONNECTION METHOD

Abstract. The demand for up-to-date geospatial data is in an upward trend. This brings a continuous and sustainable review and update of the geospatial data itself and database design. Turkish Topographic Vector Database (TOPOVT) is the main database of Turkey consisting 1 : 25.000 and higher scale resolution 3D topographic vector data covering whole country. It also consists of contours and geonames. TOPOVT has been and is still being produced by General Command of Mapping of Turkey mainly from 30 cm resolution stereo aerial photos and completed in the field. TOPOVT is seamless and topologic database. The updating objective is five years cycle. The first production cycle of TOPOVT in vector has been completed recently. Before the updating cycle began, a system was designed to update TOPOVT efficiently and without losing any information content. It also holds historical background of the features updated.

With this topographic data update system, geospatial data can be updated rapidly and served to the users. Hereby both the process for map printing fastens and answers to the need of updated data for the TOPOVT database can be achieved. With this system, the data which will be updated can be displayed on the personal computer by TOPOVT database connection and the users can perform add, update and delete actions in the data according to their authorization. All the updates executed in the field can be monitored on the TOPOVT database in real time via internet connection.