Volume Transport Strait Section Calculator
Actual sampled section cell normal flux with separate opposing flows, not singleAV or absolute cancellation. Caller independently establishes units, regime, calibration and applicability; this does not establish design-code compliance, authenticity, operational safety, treatment efficacy or a validated forecast.
Description
A section transport combines area and signed velocity normal to each sampled cell.
A section transport combines area and signed velocity normal to each sampled cell.1
Opposing flows can cancel in net transport while each direction remains substantial.
When to use Volume Transport Strait Section Calculator
Use this tool to calculate or review the supplied observations under the stated rules. Match the observation interval, units, datum, coordinate signs and model regime.
How to use Volume Transport Strait Section Calculator and understand its results
- Match the observation interval, units, datum, coordinate signs and model regime.
- Enter observedSectionCellAreasM2, observedNormalVelocitiesMSecond, using the field meanings and rules below, then run the tool.
- Read signedStraitTransportM3Second, forwardTransportM3Second, reverseTransportM3Second. Inspect nested result fields where present, and review unknown records separately from known matches.
- Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| observedSectionCellAreasM2 | Observed section cell areas m2 | list of number | Required |
| observedNormalVelocitiesMSecond | Observed normal velocities m second | list of number | Required |
Use nonempty aligned cell areas>0 and signed normal velocities. Compute each area×velocity, sum all cells for net flow, sum positive cells for forward flow and negative cells for reverse flow. Reverse transport stays negative, rather than becoming a magnitude.
Q_i=A_i v_i; Q_net=ΣQ_i Use the matching field units and the exact boundary, ordering and reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| signedStraitTransportM3Second | Signed strait transport m3 second; preserve the subtraction order and sign defined in the mechanics | number |
| forwardTransportM3Second | Forward transport m3 second | number |
| reverseTransportM3Second | Reverse transport m3 second | number |
{
"input": {
"observedSectionCellAreasM2": [
10,
20
],
"observedNormalVelocitiesMSecond": [
2,
-1
]
},
"output": {
"signedStraitTransportM3Second": 0,
"forwardTransportM3Second": 20,
"reverseTransportM3Second": -20
}
}Limitations and assumptions
The stated observation or model covers only the supplied record and reference regime. It does not fill missing measurements, supply uncertainty estimates or produce a validated forecast.
Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Lists and matrices must be dense, without missing cells. Numeric lists allow at most 10000 entries; ordinary string lists allow at most 128 strings of 128 UTF-16 units each; numeric matrices allow at most 128 rows and 128 columns, subject to narrower requirements above.
Alternative or Complementary methods
For a related step, use Boundary Current Flux Profile Calculator: A boundary-current flux profile combines depth-averaged velocity with water depth at offshore stations. For a complementary comparison, use Gulf Stream Transport Reference Lookup: Gulf Stream transport varies with section, depth range and observation period.
References
Similar or alternative tools
- Boundary Current Flux Profile Calculator
A boundary-current flux profile combines depth-averaged velocity with water depth at offshore stations.
- Gulf Stream Transport Reference Lookup
Gulf Stream transport varies with section, depth range and observation period.