Important: The elevation profile data comes from a grid of sampled points that might not align with your route. The resulting statistics can be inaccurate. These statistics should be considered an approximate guide only, especially in steep terrain.
New Elevation System
There's a new elevation system! It's more accurate than the old one.
- It lets you choose between different digital elevation models (DEM)
- Three of these have a resolution of 30m compared to 90m for the old system
- It more accurately finds the high and low points of your route
More information about how to use it will be added here soon...
Quick Guide
When you hover over the elevation profile, you get these statistics:
- x - The distance into your route
- alt - The altitude at that point
- ∠ - The slope gradient sampled around that point
You can modify the elevation profile with these settings:
- DEM - Choose one of the DEMs listed below. The default is ALOS World 3D, which has a resolution of 30m and is generally the best. However it has void areas so if you find it returning poor data, try a different one.
- Resolution - The vertical resolution used to find elevation changes in the DEM. Ranges from 1 metre to 10 metres. Smaller settings gives more detail (useful for assessing steep terrain) but might over-estimate the ascent and descent.
- Smoothing - The size of a bump to smooth out. Ranges from 1 meter to 20 metres. If the elevation data contains many small bumps, perhaps due to less-accurate underlying data, then increase the smoothing to remove them. For example this is useful for routes that try to track a consistently-declining river in a steep-sided valley.
Credits
All elevation data comes from the useful DEM Net Elevation API at https://elevationapi.com.
Via ElevationAPI, these DEMs from OpenTopography are available to you: