Examples
Examples
Try the starting example
- Common cross-shore distances (m)
- 0,10,20,30
- Earlier profile elevations (m)
- 2,1,0,-1
- Later profile elevations (m)
- 2.2,1.3,0.1,-1
- Representative alongshore width (m)
- 100
- Section area change (m²)
- 5
- Volume change (m³)
- 500
Try another scenario
- Common cross-shore distances (m)
- [0, 10, 20, 30]
- Earlier profile elevations (m)
- [2, 1, 0, -1]
- Later profile elevations (m)
- [2.2, 1.3, 0.1, -1]
- Representative alongshore width (m)
- 200
- Section area change (m²)
- 5
- Volume change (m³)
- 1,000
Calculation method
Calculation method
Section area change (m²)
Trapezoidal integral of later minus earlier elevations over common fixed transect.
Volume change (m³)
Section area change×alongshore width; positive means added volume.
Symbols and units
- a
- Common cross-shore distances (m)
- b
- Earlier profile elevations (m)
- c
- Later profile elevations (m)
- d
- Representative alongshore width (m)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Repeated cross-shore profiles, alongshore width. Returns Section and volume change. All coefficients and observations are user supplied; results describe only the stated mathematical model. Quantities are deterministic calculations from supplied observations and assumptions; no external data is fetched. Supported limits: Finite inputs only; numeric fields bounded as labelled. Lists and JSON records are limited to 256 entries unless a stricter tool bound is stated. No automatic design approval, legal conclusion, treatment recommendation or safety certification. Common cross-shore distances (m): minimum None, maximum 1000000000000.0. Earlier profile elevations (m): minimum None, maximum 1000000000000.0. Later profile elevations (m): minimum None, maximum 1000000000000.0. Representative alongshore width (m): minimum 1e-12, maximum 1000000000000.0.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.