Harvest Morning Dew Correction Weight

Correct delivered grapes using caller paired before/after **surface drying** samples; unlike internal wet/dry moisture conversion, model assumes no juice/berry dry-matter loss and dew representativeness remains caller responsibility.

Description

Surface dew adds delivered grape mass without being grape tissue.

Surface dew adds delivered grape mass without being grape tissue. Paired surface-wet and surface-dried samples estimate that contribution.

When to use Harvest Morning Dew Correction Weight

Use this tool to correct delivered grapes using caller paired before/after **surface drying** samples; unlike internal wet/dry moisture conversion, model assumes no juice/berry dry-matter loss and dew representativeness remains caller responsibility.

Prepare vineyard measurements, dates or block records for the intended growing period. Keep weights, counts and weather observations in the stated units.

How to use Harvest Morning Dew Correction Weight and understand its results

Prepare vineyard measurements, dates or block records for the intended growing period. Keep weights, counts and weather observations in the stated units.
Enter deliveredWetGrapeMassesKg, pairedDrySurfaceSampleMassesKg, pairedWetSurfaceSampleMassesKg using the field table and calculation rules, then run the tool.
Read inferredSurfaceWaterFractions, surfaceWaterCorrectedGrapeMassesKg, estimatedTotalSurfaceWaterKg. 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
deliveredWetGrapeMassesKg	Delivered wet grape masses kg	list of number	Required
pairedDrySurfaceSampleMassesKg	Paired dry surface sample masses kg	list of number	Required
pairedWetSurfaceSampleMassesKg	Paired wet surface sample masses kg	list of number	Required

Align nonnegative deliveries and dry-surface sample masses with positive wet-surface samples. Require dry/wet ratios in [0,1]. Return water fractions, corrected masses and total removed surface-water kg.^[1]

Paired lists must be nonempty and have equal lengths.

corrected delivery = wet delivery × surface-dried sample/surface-wet sample

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

Output field	Meaning	Value type
inferredSurfaceWaterFractions	Inferred surface water fractions	list of number
surfaceWaterCorrectedGrapeMassesKg	Surface water corrected grape masses kg	list of number
estimatedTotalSurfaceWaterKg	Estimated total surface water kg	number

json

{
  "input": {
    "deliveredWetGrapeMassesKg": [
      100,
      200
    ],
    "pairedDrySurfaceSampleMassesKg": [
      9,
      18
    ],
    "pairedWetSurfaceSampleMassesKg": [
      10,
      20
    ]
  },
  "output": {
    "inferredSurfaceWaterFractions": [
      0.09999999999999998,
      0.09999999999999998
    ],
    "surfaceWaterCorrectedGrapeMassesKg": [
      90,
      180
    ],
    "estimatedTotalSurfaceWaterKg": 30
  }
}

Limitations and assumptions

Surface drying must avoid juice or tissue loss; this is not internal moisture conversion.

Numbers and computed results must be finite; overflow produces an error. Numeric lists are limited to 100,000 entries; the rules above may require smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Machine Harvest Loss Percent: Audit independent preharvest/collected/ground/residual crop inventories, preserving signed unaccounted mismatch instead of forcing mass closure or calling every residual machine loss. For a complementary task, use Berry Average Weight From Sample: Pool counted berry subsamples with independent container tare and unequal berry denominators; not a variety average or equal-sample mean.

References

Harvest Morning Dew Correction Weight — tool.io

Similar or alternative tools

Machine Harvest Loss Percent
Audit independent preharvest/collected/ground/residual crop inventories, preserving signed unaccounted mismatch instead of forcing mass closure or calling every residual machine loss.
Berry Average Weight From Sample
Pool counted berry subsamples with independent container tare and unequal berry denominators; not a variety average or equal-sample mean.