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How To: Perform a viewshed analysis when elevation data for the area of interest is unavailable

Summary

In some cases, when performing a viewshed analysis on a feature, the elevation data for the area of interest is unavailable. However, it is possible to run the analysis by using the Viewshed tool from the Ready-To-Use Services in ArcMap.

Note:
The tool consumes one (1) credit for every 1,000 input features.

The following instructions describe how to perform a viewshed analysis without elevation data.

Procedure

  1. In ArcMap, ensure the observer points are in the correct location by adding the point dataset to the map.
    Note:
    If the point data is in an Excel file, refer to Adding x,y coordinate data as a layer to import and display the points on the map.
  2. Sign in to an ArcGIS Online organizational account.
  3. Run the Viewshed tool from the Ready-To-Use Services in the Catalog pane.
    1. Expand Ready-To-Use Services and select the second option for Elevation.
    2. Expand Tools > Elevation > Viewshed.

      Elevation > Viewshed
       
    3. Set the point dataset from Step 1 as the input point feature.
    4. Click OK. A new layer is created in the Table of Contents.

      Viewshed Analysis output
  4. Export the output layer to a feature class.
Note:
The output layer from the Viewshed tool is a temporary polygon layer. To make the layer a permanent layer, the data must be exported.

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