Karst Feature Calculator
Sinkhole risk from limestone depth and water table.
Inputs
Results
Sinkhole susceptibility (0-100)
63.23
Risk category (0-3)2
Dissolution rate (mm/kyr)41.25
Time to dissolve (kyr)1,212
Cavity volume (m³/kyr/ha)20.63
CO₂ factor1.83
How to Use This Calculator
- Enter Limestone thickness (m) from geologic maps or borehole logs.
- Set Depth to bedrock (m) — the thickness of soil or sediment overlying the limestone.
- Enter the Water table depth (m) from surface; when the water table sits within the limestone, sinkhole risk increases sharply.
- Input Annual rainfall (mm) and Average temperature (°C) for the site.
- Interpret the Sinkhole susceptibility index (0–100) and Risk category (0=Low to 3=Very High) to guide site assessment decisions.
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