期刊名称:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN:2194-9042
电子版ISSN:2194-9050
出版年度:2001
卷号:XXXIV-4/W5
页码:30-31
出版社:Copernicus Publications
摘要:Geographic Information Systems (GIS) are more and more seen as an integral part of the modern information and communication society. Improved methods for data access and integration have accelerated this process. Scientific advances have also paved the way for GIS as a catalyst for a new evolving discipline Geoinformatics thus changing the role of GIS from a tool to a scientific discipline. One of the problems in applying GI (often now also referred to as geospatial) technology has been the currency, accuracy, accessibility and completeness of geodata. Although we have seen a shift from analogue to digital geospatial information storage in almost all industrialized nations, much of the available information is still based on old and sometimes outdated maps. Remotely sensed image data, on the other hand, can be used to generate current, accurate and synoptic information about all parts of the earth as a basis for geoscientific analyses in GIS. Consequently, almost all major GIS software packages offer now at least the possibility to display and query digital images as part of their GIS database. With the advent of the new (civilian) satellites with a resolution of better than 1m and airborne scanner sensors with a high geometric fidelity and spatial resolutions in the cm range we see another push for the integration of remotely sensed images into GIS.