Description
Ideal rectangular supplied storage geometry without earthworks design or flood-safety assurance.
Garden and resource-design calculations combine measured lengths, areas, water volumes, material fractions, travel, and evidence records. A useful budget needs consistent units and clear overlap, exclusion, and denominator rules. Supplied geometry and efficiencies describe a model rather than verified site performance.
Ideal rectangular supplied storage geometry without earthworks design or flood-safety assurance.
When to use this tool
Use Swale Freeboard Reserve Volume when you have supplied site dimensions or resource records and need the stated geometry, budget, or coverage measure.
How to use the tool and how it works
- Enter length, width, totalDepth, waterDepth, reserveDepth. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read remainingVolume, reserveVolume, excessReserveVolume. Use the output convention below.
For nonnegative length, width, totalDepth, reserveDepth, and waterDepth<=totalDepth return remainingVolume=length*width*(totalDepth-waterDepth), reserveVolume=length*width*reserveDepth, and excessReserveVolume=remainingVolume-reserveVolume.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| length | Length in the unit stated for the model. | Required. Finite number; minimum 0. |
| width | Width | Required. Finite number; minimum 0. |
| totalDepth | Total Depth | Required. Finite number; minimum 0. |
| waterDepth | Water Depth | Required. Finite number; minimum 0. |
| reserveDepth | Reserve Depth | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| remainingVolume | Remaining Volume | Required. Finite number. |
| reserveVolume | Reserve Volume | Required. Finite number. |
| excessReserveVolume | Excess Reserve Volume | Required. Finite number. |
{
"input": {
"length": 10,
"width": 2,
"totalDepth": 1,
"waterDepth": 0.5,
"reserveDepth": 0.2
},
"output": {
"remainingVolume": 10,
"reserveVolume": 4,
"excessReserveVolume": 6
}
}Limitations and assumptions
- Lengths need one unit and the section is treated as rectangular. Reserve depth may exceed remaining depth and produce a negative margin; infiltration, slope stability, freeboard design, and flood safety are not verified.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Signed zero is exported as zero.
Alternative or Complementary methods
Use verified site measurements and suitable physical or resource models for a complete design. Check units, overlap, losses, capacity, and whether an accounting share represents the intended quantity.
References
Similar or alternative tools
- Swale Contour Storage One Meter Term
Ideal trapezoidal storage volume per unit contour length.
- Catchment Storage Remaining Volume
For nonnegative capacity, stored, and reserved return remaining=capacity-stored-reserved and available=max(0,remaining).