Blog / Topography / Topography in details

Topography in details

relief position derivative
6 mins read |
Share

Topography often has a huge influence on nutrient distribution and yield potential. GeoPard creates topographic models from machinery, remote sensing and if available LIDAR datasets. 

Let’s dive deeper into the new topographic derivatives we just added to GeoPard.

Relief Position is defined as the difference between a central pixel and the mean of its surrounding cells. In other words, spots with negative values mean field lowland, spots with positive values – field highland. You can have a hilltop in a “low” elevation that has very different soil properties than a mid slope or depression. Elevation, slope and aspect cannot show this. Relief position is calculated in meters.

Relief Position

Slope is the angle of inclination to the horizontal. Usually, it is calculated in degrees or percent slope. GeoPard does that in degrees.

Terrain slope

Ruggedness is defined as the mean difference between a central pixel and its surrounding cells. In other words, ruggedness describes the slope in absolute numbers (in meters) for every particular location (pixel).

Roughness is the degree of irregularity of the surface. It’s calculated by the largest inter-cell difference of a central pixel and its surrounding cell. In other words, it measures the maximum absolute value of the slope in meters for every location (pixel).

Roughness

These four topographic derivatives reflect the slope details but in a bit different flavour.

displaying slope details
Topography
Get the latest news
from GeoPard

Subscribe to our newsletter!

Subscribe
Get the latest news from GeoPard

Subscribe to our newsletter!

Subscribe

Related posts

    Request Demo

    By clicking the button you agree our Privacy Policy

      Subscribe


      By clicking the button you agree our Privacy Policy

        Send us information


        By clicking the button you agree our Privacy Policy