In area with no public LiDAR/Elevation modelsavailable, and if an individual data gathering is out of the airports price range, Ascend offers an alternative using the NextMap 5 elevation model, or WorldDEM elevation model generated from TerraSAR-X/Tandem-X data.
The Ascend Obstacle Management solution uses satellite elevation data to determine the terrain elevation. The main use of satellite elevation data in the Obstacle Management Solution, is as a terrain elevation model. This can be used to handle”allowed height” requests to the airport. Furthermore, with the terrain elevation model in the system the Ascend Obstacle field app enables the airport personnel to easy gathering of obstacle height with simple field equipment.
Obstacle analysis based on satellite generated elevation data, is not a complete obstacle analysis, as the resolution and the acquisition date of the data is not sufficient to find all obstacles from the data alone. It is recommended to use this type of obstacle analysis as a starting point for a field measurement of the obstacles in the airport area.