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What is a geostatistical layer?

Available with Geostatistical Analyst license.

  • Symbolizing the geostatistical layer

In ArcMap, geographic data is represented in layers. There are different layer types to represent different data. A feature layer may contain polygons representing soil types, points identifying biomass measured at specific locations, or lines representing a network of trails. A raster layer can represent an aerial photograph or a grid of distances from roads. Other layer types include a triangulated irregular network (TIN) layer for three-dimensional surfaces, a computer-aided design (CAD) layer to store CAD map sheets, and a geostatistical layer to store the results of analysis from ArcGIS Geostatistical Analyst.

The geostatistical layer is similar to all layers in ArcMap. You can add it to a map, remove it, display it, and alter the symbology. However, a geostatistical layer differs from other layers by the way it is created and stored. A geostatistical layer can only be created by Geostatistical Analyst interpolation methods. Most layer types store the reference to the data source, the symbology for displaying the layer, and other defining characteristics. A geostatistical layer stores the source of the data from which it was created, the symbology, and other defining characteristics, but it also stores the model parameters from the interpolation. From the Properties page for a geostatistical layer, you can view both the original data source and the model parameters.

Not only can you identify the source of the input points and the model parameters, but you can retrieve general information with the General tab, view and alter the layer's map extent with the Extent tab, change the symbology with the Symbology tab, view the interpolation parameters on the Method Summary tab, and set the transparency and whether to show MapTips with the Display tab.

Geostatistical layer properties dialog box: Method parameters
Geostatistical layer properties dialog box: Method parameters

Symbolizing the geostatistical layer

A geostatistical layer can be viewed in four different formats: filled contours, contours, grid, or hillshade. You can combine multiple formats in a single display of the layer to achieve various effects. A full range of symbology and controlling parameters exists for each format.

Filled contours

Filled contours
Symbolizing a geostatistical layer as Filled Contours

Contours

Contours
Symbolizing a geostatistical layer as Contours

Grid

Grid
Symbolizing a geostatistical layer as a Grid raster

Hillshade

Hillshade
Symbolizing a geostatistical layer as a Hillshade

A combination of contours, filled contours, and hillshade

Combination of contours, hillshade, and filled contours
Combination of contours, hillshade, and filled contours

Related topics

  • Managing geostatistical layers
  • Representing geostatistical layers

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