Agriculture Furrow Irrigation Advance Time Calculator
Read actual independently measured furrow-front distance/elapsed time, no infiltration/slope constants. Independently matched piecewise-linear calibration, no extrapolation. 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
Furrow advance observations need a matched coordinate–response calibration.
Furrow advance observations need a matched coordinate–response calibration.1
Interpolation does not simulate infiltration or predict beyond the observed range. Use Agriculture Furrow Irrigation Advance Time Calculator to interpolate the supplied calibration.
When to use Agriculture Furrow Irrigation Advance Time Calculator
Use Agriculture Furrow Irrigation Advance Time Calculator to interpolate the supplied calibration. Choose a matched calibration, establish both axis units and supply strictly increasing sampled coordinates covering the query.
How to use Agriculture Furrow Irrigation Advance Time Calculator and understand its results
- Choose a matched calibration, establish both axis units and supply strictly increasing sampled coordinates covering the query.
- Enter Observed furrow front distance coordinates, Caller verified furrow front distance responses, Query furrow front distance coordinate using the field table and validation rules below, then run the tool.
- Read Interpolated matched response, Local observed slope; interpret the units, signs, ordering and unknown-value placeholders described below.
- Correct reported input errors and rerun. Apply successful results according to their specific meanings and check the assumptions before using them in a decision.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| observedFurrowFrontDistanceCoordinates | Observed furrow front distance coordinates | array of number | Required; constraints below |
| callerVerifiedFurrowFrontDistanceResponses | Caller verified furrow front distance responses | array of number | Required; constraints below |
| queryFurrowFrontDistanceCoordinate | Query furrow front distance coordinate | number | Required; constraints below |
Provide at least two aligned finite coordinates and responses, with strictly increasing coordinates, and query within the closed sampled range. The tool locates the segment, linearly interpolates its response and returns its response-per-coordinate slope. At an interior sample it uses the segment to the right; at the final endpoint it uses the last segment. Units come from the supplied calibration. No extrapolation or built-in time, temperature or performance table is supplied.
slope = (y[i+1]−y[i])/(x[i+1]−x[i]); response = y[i]+slope×(query−x[i]) Use the field order, units and branch conditions described above.
| Output field | Meaning | Value type |
|---|---|---|
| interpolatedMatchedResponse | Interpolated matched response in the caller’s response-axis units. | number |
| localObservedSlope | Response-axis units per coordinate-axis unit on the selected segment. | number |
{
"input": {
"observedFurrowFrontDistanceCoordinates": [
0,
10,
20
],
"callerVerifiedFurrowFrontDistanceResponses": [
0,
2,
6
],
"queryFurrowFrontDistanceCoordinate": 15
},
"output": {
"interpolatedMatchedResponse": 4,
"localObservedSlope": 0.4
}
}Limitations and assumptions
Interpolation does not simulate infiltration or predict beyond the observed range. Apply the exact scope and assumptions explained above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse arrays fail validation. Domain-specific bounds, alignments and supported tokens are explained above; extremely large inputs or outputs can also be rejected. Input errors differ from successful false results, empty match lists and unknown-evidence placeholders.
Alternative or Complementary methods
Use Agriculture Irrigation Uniformity Coefficient Calculator for a related task: An irrigation uniformity coefficient compares deviations with a weighted mean catch.
Use Agriculture Yield Response To Water Ky Calculator for a related task: Yield response to water compares relative yield loss with a matched evapotranspiration deficit.
References
Similar or alternative tools
- Agriculture Irrigation Uniformity Coefficient Calculator
An irrigation uniformity coefficient compares deviations with a weighted mean catch.
- Agriculture Yield Response To Water Ky Calculator
Yield response to water compares relative yield loss with a matched evapotranspiration deficit.