SAGA

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Deutsch

SAGA ist ein geographisches Informationssystem (GIS) mit einem speziellen API für geographische Datenverarbeitung. Die SAGA API unterstützt Raster-Daten wie z.B. digiale Höhendaten und Satelliten-Daten sowie Vektordaten und Tabellen. Seit dem Erscheinen von SAGA gibt es eine wachsende Anzahl von SAGA-Modulen in den Gebieten digitale Höhenanalyse, Geostatistik, Bildverarbeitung und Simulationen.

English

SAGA System for Automated Geoscientific Analyses - is a hybrid GIS software.

You can understand SAGA as a geographic information system (GIS), with a special "Application Programming Interface" (API) for geographic data processing. The SAGA API supports grid data like digital terrain models and satellite images, vector data, and tables. Since the release of SAGA there is a growing collection of SAGA-Modules, in areas of digital terrain analysis, geo-statistics, image processing and process simulation.

There are about 120 modules available in SAGA's standard edition. This list gives an overview of the variety of implemented methods.

  • File access: interfaces to various table, vector, image and grid file formats.
  • Filter for grids: gaussian, laplacian, multi direction lee filter...
  • Gridding: interpolation from vector data using triangulation, nearest neighbour, inverse distance...
  • Geostatistics: residual analysis, ordinary and universal kriging, single and multiple regression analysis, variance analysis...
  • Grid calculator: combine grids through user defined functions...
  • Grid discretisation: skeletonisation, segmentation...
  • Grid tools: merging, resampling, gaps filling...
  • Image classification:cluster analysis, box classification, maximum likelihood, pattern recognition, region growing...
  • Projections:various coordinate transformations for vector and grid data (using Proj4 and GeoTrans libraries), georeferencing of grids.
  • Simulation of dynamic processes: TOPMODEL, nitrogen distributions, erosion, landscape development...
  • Terrain analysis:slope, aspect, curvatures, curvature classification, analytical hillshading, sink eliminition, flow path analysis, catchment delineation, solar radiation, channel lines, relative altitudes...
  • Vector tools: polygon intersection, contour lines from grid...
  • And more...


http://www.saga-gis.uni-goettingen.de/html/images/bild8.gif

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