By L. M. Hilty, B. Page, F. J. Radermacher, W.-F. Riekert (auth.), Nicholas M. Avouris, Bernd Page (eds.)
Environmental informatics is a box of utilized desktop technology that develops and makes use of the options of data processing for environmental safeguard, learn and engineering. The multidisciplinary nature of environmental difficulties wishes environmental informatics as a bridge and mediator among many disciplines and associations. the current booklet offers a variety of themes presently being pursued within the zone, together with uncomplicated methodological matters and commonplace purposes. an important variety of regarded specialists have contributed to the amount, discussing the method and alertness of environmental tracking, environmental databases and knowledge platforms, GIS, modeling software program, environmental administration structures, knowledge-based platforms, and the visualisation of advanced environmental info.
For scholarly practitioners of environmental administration who desire to gather well-founded wisdom of environmental details processing and experts in utilized laptop technological know-how who desire to examine extra concerning the contribution in their box to the answer of our pressing environmental difficulties.
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Additional resources for Environmental Informatics: Methodology and Applications of Environmental Information Processing
Originating from maps and tables). This information guides the expectations of the analysts when image data are processed. 2. Knowledgeabout concepts and processes of remote sensing, image processing, and geo-sciences. This knowledge is important in controlling activities and decisions during the analysis. The integration of these two types of knowledge sources into the analysis of remote sensing data leads to a knowledge-based functional model as shown in figure 3. The research project RESEDA, presented in the following section, aims at such a functional model.
Landsat's TM sensor scans the entire surface of the Earth within a period of 16 days. The image information recorded is aggregated into scenes consisting of 40 million pixels and is transmitted to the Earth. A Landsat scene stands for an area of about 180 x 180 km2; a single pixel corresponds to an area of 30 x 30 m2 • The seven channels of the Landsat TM sensor are sensitive to three visual and four infrared frequency bands. One of the infrared channels, channel 6, is sensitive to thermal emission.
For this purpose, the classification result of the previous year may serve as background information for the definition of training areas, and as a source of evidence for possible land-use changes. 4 RESULT An integrated software environment for analyzing remote sensing data was implemented using commercial data-processing software and additional knowledge-based system components that were developed in the RESEDA project. The resulting working environment consists of an image-processing system, a geographical information system, and an expert system.