The input data were presented by the coordinates of points located on territory according to the scheme of measurements. The geostatistic and deterministic approaches were applied for interpolation of input data. The technique of GIS ArcGIS mapping is illustrated by examples of GIS maps of radioactive and chemical pollution in the snow cover on the territory of St. Georeference your own images with the free, two week Surfer trial.DIGITAL GEOECOLOGICAL MAPS AND SEVERAL METHODS OF ITS CONSTRUCTING IN A GIS ARCGISĭirectory of Open Access Journals (Sweden)įull Text Available This article is focused on methods of digital geoecological maps construction with using GIS ArcGIS technologies. This number corresponds to the minimum required control points for that specific warp method.Įasily assign and edit control points to georeference the image.įinally, update the map with your image that now has real-world coordinates. When selecting a warp method, you’ll notice a number preceding the warp method. Should you need to specify a warp methods, Surfer provides 10 options. Once a control point is selected, the control point table lets you view and edit the source and target coordinates. Control points match points on the image to corresponding points in real-world coordinates. The navigation tools make it easy to select, add, or delete control points. View help text and the warp method, if one is applied, along with the pixel, geographic, and projected coordinate location of the cursor in the status bar. Zoom in/out with the mouse wheel or zoom to a selected area, quickly pan the image, or adjust the view to fit the entire image in the view pane. Within the Georeference Image window, you can easily navigate the image. The georeference image window allows you to easily work with all aspects of your map in Surfer. This allows you to transition from one window to the next as you verify your georeference settings are correct. When georeferencing an image, the Georeference Image window pops up as a separate window from the Surfer application. Below I will step you through some of the main georeferencing features, but for more detailed instructions on how to georeferenced an image of your own, check out our knowledge base article, How can I georeferenced (assign coordinates to) an image base map in Surfer? The latest release of Surfer can georeference images using three or more control points. Georeferencing an image is the process of assigning real-world coordinates to each pixel of the image. In order to spatially relate the image with the other geographic data sources in a map, the image must be georeferenced. Images provide additional information and context for the map. One popular enhancement is including images such as satellite imagery, aerial photographs, or historical maps. There are many ways to customize and enhance maps.
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