Subsidence Overlay

The subsidence overlay

The ground water overlay

The Subsidence Overlay is an overlay that shows which places in the project area are subject to subsidence due to oxidation and/or compaction of peat. The calculation results can provide insight into the subsidence taking place, and the effects it has on groundwater levels.

The Subsidence Overlay can be used to calculate the amount of subsidence which takes place on peat soil, specifically due to peat oxidation and compaction. The calculations are specific for peat soil. Separate formulas for other soil types have not yet been implemented. Although it's possible to use the overlay to give an impression of subsidence resulting from other factors, the results will be less accurate. This means that results have a greater margin of error for different use-cases.

It is possible to add multiple subsidence overlays to a project. By varying their configuration slightly, it is possible to calculate multiple scenario's or time-frames simultaneously.

A project can be enriched with other overlays that are interesting in combination with the Subsidence Overlay. Examples are:

• The initial Groundwater level calculated by the Groundwater Overlay
• The Waterwijzer Overlay which calculates the yield loss of crops based on several parameters such as Subsidence

How to's

• How to add and remove an Overlay
• Edit an overlay legend

Module

A Subsidence Overlay can be configured by opening the Subsidence Overlay Wizard. More in-depth information can be found under each of the categories below.

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Subsidence Module

Subsidence Overlay

Tutorials

Overview

Theory

Benchmarks

Group

Model

Model

Overview • Calculation • Theory

Formulas

Parameter a recalculation • Ground water depth • Oxidation • Compaction • Subsidence • Indexation

Related

Features • Model attributes • Rasters • Result type

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Overlays

Categorization

Grid • Parent • Result Child • Result Parent • Result type

Default

City

Administrative

Ownership • Ownership Grid • Zipcodes • Zoning • Neighborhoods • Municipalities • Vacancy

Environmental

Heat Stress • Traffic Density • Traffic Noise • Traffic NO2 • Livability

Water

Rainfall • Flooding • Groundwater • Subsidence • Watershed

Grid Calculation

Average • Combo • Distance • Sight Distance • Travel Distance • Inference • Iteration

Geo Data

GeoTIFF • WCS • WMS • Image • Area • Attribute • Function

Topography

Satellite • Digital Surface Model • Digital Terrain Model • Underground • Source

Network

Network Distance • Network Overview • Network Ownership