THE UPDATING OF GEOSPATIAL BASE DATA

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences

Gottfried Konecny^2¹  Muhamad N. Alrajhi^1² 

[1] Leibniz University Hannover, Germany^2;Ministry of Municipal and Rural Affairs (MOMRA), Riyadh, KSA^1

关键词: Updating;    Geospatial Base Data;    Saudi Arabia;   

DOI  :  10.5194/isprs-annals-IV-3-3-2018

学科分类：地球科学(综合)

来源: Copernicus Publications

【 摘 要 】

Topopographic mapping issues concern the area coverage at different scales and their age. The age of the map is determined by the system of updating. The United Nations (UNGGIM) have attempted to track the global map coverage at various scale ranges, which has greatly improved in recent decades. However the poor state of updating of base maps is still a global problem. In Saudi Arabia large scale mapping is carried out for all urban, suburban and rural areas by aerial surveys. Updating is carried out by remapping every 5 to 10 years. Due to the rapid urban development this is not satisfactory, but faster update methods are forseen by use of high resolution satellite imagery and the improvement of object oriented geodatabase structures, which will permit to utilize various survey technologies to update the photogrammetry established geodatabases. The longterm goal is to create an geodata infrastructure, which exists in Great Britain or Germany.

【 授权许可】

CC BY