Oxidation formula (Subsidence Overlay)

The amount of subsidence due to oxidation is calculated by the following formula:

$S_{O}=d_{gw,y}\cdot a_{y}-d_{ct}\cdot b-c$

where

• $S_{O}$ is the subsidence due to oxidation.
• $d_{gw,y}$ is the calculated ground water depth for year y.
• $a_{y}$ is the calculated a parameter value for the current year $y$.
• $d_{ct}$ is the clay thickness of the terrain, defined by CLAY_THICKNESS
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• Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle c} is the c parameter value, defined by PARAMETER C

This formula was provided by experts, who have derived this formula empirically.