Erosion Contour Row Gradient Checker
Check observed absolute row gradient against a caller limit; no erosion or contour-design certification.
Description
Flag absolute row gradient above a caller-selected erosion-review limit.
Row gradient can be screened against a chosen review limit when assessing an erosion-related layout. This tool compares the magnitude of a measured rise-to-run percentage with the caller's threshold.
When to use this tool
Flag absolute row gradient above a caller-selected erosion-review limit. Use it when the input measurements and conventions below match the operation you need.
- Prepare signedRiseM, horizontalRunM, callerMaxAbsolutePercent, respecting the measurement basis and boundaries below.
- Compare the worked example with your intended operation before reusing its result.
How to use the tool and how it works
- Enter every field in the input table using the stated units and exact supported selector spelling where applicable.
- Run the tool. Correct input errors before interpreting an output.
- Read the result fields below; use accompanying flags and the stated sign, boundary or model convention when interpreting a number.
horizontalRunM must be positive and callerMaxAbsolutePercent nonnegative. The tool calculates 100 times signedRiseM divided by horizontalRunM and flags an absolute value strictly above the threshold.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| signedRiseM | Signed rise m. Meters. | Finite number |
| horizontalRunM | Horizontal run m. Meters. | Finite number; greater than zero |
| callerMaxAbsolutePercent | Caller max absolute percent. Percentage units; 20 means 20%. | Finite number; zero or greater |
| Output field | Interpretation |
|---|---|
| result | Object containing the following named result fields. |
| result.callerReviewFlag | Caller review flag flag under the exact conditions described above. |
{
"input": {
"signedRiseM": 2,
"horizontalRunM": 100,
"callerMaxAbsolutePercent": 1
},
"output": {
"result": {
"callerReviewFlag": true
}
}
}Limitations and assumptions
- The threshold is supplied, not derived from a soil-erosion model. Rainfall, soil, ground cover, runoff pathways and structural suitability are not assessed.
- Every declared field is required and unexpected fields are rejected. Numeric inputs must be finite; input errors are distinct from a valid false result or an explicitly qualified output.
- Extremely large inputs and nonfinite or excessively large outputs are rejected. List positions reported by the tool use zero-based indices unless stated otherwise.
Alternative or Complementary methods
Compare the result with actual block measurements, soil or crop observations and the declared management basis. Use a site-specific model when effects omitted here materially affect the decision. Compare the scope of the nearby tools below before substituting one.
References
Similar or alternative tools
- lyre system row width opening
A symmetric Lyre system spreads curtains outward from their bases.
- row length vine count
Plant positions are discrete points along a measured row.