It adopts a method that is combined between theory analysis with GIS development course. Some problems of GIS space data have been discussed,such as its concept,3DGIS,quality,structure,initialization,data timely updata space and space measurement,etc.
Has established the farming information database including the attribute data management, the space data management, the assistance analysis management, the system maintenance management and so on 4 modules farming resources information management systems.
For a system,depicts geo-spatial data sharing mechanism from the organization,the standard of OGC(GML),heterogeneous database conversion and the sharing network(constructing geo-spatial data sharing network by MPLS VPN).
Because drilling data are very important to describe the characters of multi-scale of the spatial data for rock mass, the rule of how to process drilling data is developed to help appropriately display them in the viewpoint of 3D space.
Conical waves may find various applications such as in the acceleration of particles, the generation of high-power pencil beams, the transformation of simultaneously written spatial data into a time waveform, the measurement of flow rate, etc.
Furthermore, through spatial data collection and spatial analysis of the main disturbances in this area, the cause of landscape formation was studied.
Mapping forest fire risk zones with spatial data and principal component analysis
GIS based spatial data analysis for landslide susceptibility mapping
Geo-Spatial Data Transfer Standard is an important part of "National Spatial Data Infrastructure (NSDI)", as well as a necessary means for data sharing.
"Chinese National Geo-Spatial Data Transfer Format (CNSDTF)" was approved by National Quality Technology Supervise Bureau in 1999 with the standard serial number of 17798-1999.
In this paper, the authors propose a framework for automated change detection system at landscape level using various geo-spatial data sources including multi-sensor remotely sensed imagery and ancillary data layers.
Automatic change detection of geo-spatial data from imagery
Integration and sharing of geo-spatial data based on data engine