Seed Zone Climate Analog Match Tool

Compare all caller climate analog vectors under explicit variable scales and distance cutoff, retaining ambiguous/no matches; no coordinates, seed-zone regulations or adaptive transfer suitability inferred.

Description

Climate analog comparison uses explicit variable scales to put different dimensions on a common distance basis.

Climate analog comparison uses explicit variable scales to put different dimensions on a common distance basis. Multiple source analogs can match, or none may match.^[1]

When to use Seed Zone Climate Analog Match Tool

Use this tool to compare all caller climate analog vectors under explicit variable scales and distance cutoff, retaining ambiguous/no matches; no coordinates, seed-zone regulations or adaptive transfer suitability inferred.

Gather the tree inventory, plot measurements or model parameters. Check diameter, area, time and moisture conventions; keep paired observations aligned.

How to use Seed Zone Climate Analog Match Tool and understand its results

Gather the tree inventory, plot measurements or model parameters. Check diameter, area, time and moisture conventions; keep paired observations aligned.
Enter targetClimateVector, sourceClimateVectors, comparisonScales, callerMaximumStandardizedDistance using the field table and calculation rules, then run the tool.
Read sourceStandardizedClimateDistances, compatibleClimateSourceFlags. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
targetClimateVector	Target climate vector	list of number	Required
sourceClimateVectors	Source climate vectors	list of list of number	Required
comparisonScales	Comparison scales	list of number	Required
callerMaximumStandardizedDistance	Caller maximum standardized distance	number	Required

Provide rectangular source climate vectors, one aligned target vector and positive scales. Use a nonnegative maximum distance, compute all source distances and return inclusive within-limit flags in source-row order.

standardized distance=sqrt(Σ[(source component−target component)/scale]²)

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
sourceStandardizedClimateDistances	Source standardized climate distances	list of number
compatibleClimateSourceFlags	Compatible climate source flags	list of number

json

{
  "input": {
    "targetClimateVector": [
      10,
      100
    ],
    "sourceClimateVectors": [
      [
        10,
        100
      ],
      [
        12,
        120
      ]
    ],
    "comparisonScales": [
      1,
      10
    ],
    "callerMaximumStandardizedDistance": 2
  },
  "output": {
    "sourceStandardizedClimateDistances": [
      0,
      2.8284271247461903
    ],
    "compatibleClimateSourceFlags": [
      1,
      0
    ]
  }
}

Limitations and assumptions

No geographic distance, seed-zone regulation or adaptive-transfer suitability is inferred.

Numeric inputs and returned numeric values must be finite; an unrepresentable returned value produces an error. Matrices are limited to 128 rows and 128 entries per row; other numeric lists are limited to 100,000 entries. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Climate Zone Shift Velocity: Solve minimum-norm isotherm velocity from caller temporal tendency and planar measured temperature gradient; sign follows dT/dt+v·gradT=0, not mapped migration, species movement or a geodesy operation. For a complementary task, use Anomaly Correlation Height Field: Compute uncentered area-weighted anomaly correlation relative to caller climate-normal height field; differs from Pearson centered correlation, matched area exposure required and zero anomaly norms undefined.

References

Seed Zone Climate Analog Match Tool — tool.io

Similar or alternative tools

Climate Zone Shift Velocity
Solve minimum-norm isotherm velocity from caller temporal tendency and planar measured temperature gradient; sign follows dT/dt+v·gradT=0, not mapped migration, species movement or a geodesy operation.
Anomaly Correlation Height Field
Compute uncentered area-weighted anomaly correlation relative to caller climate-normal height field; differs from Pearson centered correlation, matched area exposure required and zero anomaly norms undefined.