Use WCS service layers

You can use Open Geospatial Consortium (OGC) Web Coverage Service (WCS) that are available on the web when using ArcGIS Pro. The WCS client support in ArcGIS allows you to access coverages inside these services over the internet and add as WCS layers to your maps.

The OGC Web Coverage Service is an open specification for serving one- or multi-dimensional raster data over the web. A WCS service delivers raster data and cell values, such as elevation values from a digital elevation model (DEM) or pixel values from a multiband image. You can connect to an Open Geospatial Consortium (OGC) WCS service in ArcGIS Pro by creating a WCS service connection. For more information regarding OGC WCS specifications, see the OGC website at https://www.ogc.org/standard/wcs.

After connecting to a WCS service, you can select the WCS service and add individual WCS coverages as separate WCS layers.

Properties of WCS service layers

Once the WCS coverages are added to the Contents pane as individual layers, you can right-click the layers to open the Layer Properties dialog box. The General and Source tab of Layer Properties dialog box for a WCS layer contains all raster data information.

On the General tab, you can view or change the WCS layer name, and visible scale range.

On the Source tab, it provides raster information about the WCS coverage. This includes the WCS layer's raster properties such as geographic extent, number of bands, columns and rows, cell size, source type, pixel type, NoData value, spatial reference, and statistics.

Symbology of WCS service layers

For each WCS layer added to the Contents pane, you can adjust the display by selecting different raster symbology types. The symbology settings are under the Raster Layer tab, inside the Rendering group. It allows you to pick a symbology type to render the WCS layer and change the background and NoData symbology. There are two commonly used symbology types for a WCS layer: Stretch renderer, which is applied for a single-band WCS layer by default; and RGB renderer, which is applied for a multi-band WCS layer by default. Just as you do with a raster layer, you can change the parameters or symbology types to render the WCS layer as you want. For example, you can render a multiple-band WCS layer using stretch renderer with one of the bands, you can render an elevation coverage data source using shaded relief renderer, and you can use vector field renderer when the two-band coverage data source represents vector data. You can choose a value to be displayed as background in a certain color by checking the Display Background Value check box under Mask tab and typing a background value. You can also specify a color for NoData pixels by choosing a color from the ArcGIS Colors drop-down list.

Modify WCS server connection properties

There are a number of WCS server connection properties that you can modify if needed. Modifying a server connection property allows you to set a WCS property at the server connection level (which affects all layers in the service) instead of per layer. The following steps explain how to add, remove, or modify a WCS server connection property:

  1. Select the WCS server connection in the Catalog pane.
  2. Right-click the connection and select Properties.

    This will open the WCS Server Connection Properties dialog box.

  3. To update the WCS service URL, type a new URL in the Server URL text box.
  4. To update the WCS version that the service is connected to, select a different version from the Version drop-down list.
  5. To update a custom request parameter, modify the parameter name or value. Optionally, add rows or delete rows as needed.
  6. To update the authentication used, enter a new username and password, and choose how to save your credentials.

When you have finished updating the properties, click OK and the server connection will refresh to reflect the modifications made.

Any layers that were previously added to the map from the server connection will not be affected by these changes. You must re-add the layer to the map to see the changes.

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