Abstract
Abstract. GIS databases are widely available on the Internet, but mainly for visualization with limited functionality; very simple queries are possible i.e. attribute query, coordinate readout, line and area measurements or pathfinder. A little more complex analysis (i.e. buffering or intersection) are rare offered. Paper aims at the concept of Geoportal functionality development in the field of GIS analysis. Multi-Criteria Evaluation (MCE) is planned to be implemented in web application. OGC Service is used for data acquisition from the server and results visualization. Advanced GIS analysis is planned in PostGIS and Python programming. In the paper an example of MCE analysis basing on Geoportal Kielce is presented. Other field where Geoportal can be developed is implementation of processing new available satellite images free of charge (Sentinel-2, Landsat 8, ASTER, WV-2). Now we are witnessing a revolution in access to the satellite imagery without charge. This should result in an increase of interest in the use of these data in various fields by a larger number of users, not necessarily specialists in remote sensing. Therefore, it seems reasonable to expand the functionality of Internet's tools for data processing by non-specialists, by automating data collection and prepared predefined analysis.
Highlights
Idea of Geoportal Kielce development was the main inspiration of the paper, as functionality of Geoportal should not be limited to the data visualization
Advanced analyses allows the criteria compensation and risk optimization. Such analyzes are available in GIS software, so why not to implement them on the Internet in Geoportals? Other direction of Geoportal Kielce development is involving remote sensing data in urban area management
In postGIS layers are converted to the raster model, ST_CreateIndexRaster(), are reclassify, ST_Reclass() and distance is calculated ST_EuclideanDistance()
Summary
Idea of Geoportal Kielce development was the main inspiration of the paper, as functionality of Geoportal should not be limited to the data visualization. GIS is understood as a tool for decision support Geoportal should have this functionality. Based on GIS tools, one can prepare a variety of options taking into account the interests of different groups (administration, citizens, investors, greens etc.). Advanced analyses allows the criteria compensation and risk optimization. Such analyzes are available in GIS software, so why not to implement them on the Internet in Geoportals? Other direction of Geoportal Kielce development is involving remote sensing data in urban area management (e.g. in vegetation monitoring). Available satellite images give the possibility of widespread monitoring of urban areas if the appropriate software is available
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