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OHM coefficients — Archived code-799 roof average evidence record

a10.238
a20.427
a3-16.7
ohmUMEP-dev 2017

Parameters

Names follow the SUEWS YAML specification; click one for its definition in the configuration reference.

a10.238
a20.427
a3-16.7

Provenance evidence

Unresolved

Assumed · assessed by provenance-audit · 2026-08-26. Agent assessment is evidence preparation, not human verification.

SUEWS v2017a input tables and generator workbookParameter source

Where: SUEWS v2017a SUEWS_OHMCoefficients.txt, code 799

Directly stores 0.238, 0.427 and -16.7 and labels the row Original roof average, including two not-recommended coefficients.

This is the earliest pinned public configuration artifact currently established for the exact tuple.

SUEWS v2017a input tables and generator workbookValidation

Where: SUEWS v2017a roof coefficient rows 701-791

An arithmetic mean of codes 701, 708, 709, 710, 711, 713, 750, 751, 752, 790 and 791 rounds to the stored tuple. No source artifact states that this was the historical selected set, so the numeric reconstruction is not promoted to canonical calculated provenance.

Records a reproducible possible reconstruction while preserving the evidential boundary.

Warming effects on the urban hydrology in cold climate regionsValidation

Where: Supplementary Table S4, Minneapolis building input

Lists 0.238, 0.427 and -16.7 as a later model input; it does not publish the code-799 averaging formula or selected component set.

Assessment findings

Namesupported
Archived code-799 roof average identifies the retained public SUEWS configuration without claiming that its undocumented averaging procedure has been recovered.
Targetsupported
The public table stores code 799 as an OHM coefficient triplet for a roof average, matching target ohm_coefficients.
Valuessupported
The pinned v2017a table states 0.238, 0.427 and -16.7 exactly for code 799. Järvi et al. (2017) later reuse the same triplet as a model input, but do not establish its original derivation.
Sourcesupported
The canonical source is the pinned v2017a input table that directly states the complete tuple. Järvi et al. (2014) does not state or derive code 799 and is retained only as an attempted source.
issue #65
Placenot applicable
Code 799 is a generic roof-average configuration and makes no observation-place claim.
Representativenessnot applicable
The generic release row declares no site, city or regional evidence reach.
Applicable Scaleunresolved
The release stores code 799 and calls it a roof average, but does not expose the selected inputs or construction unit. The original derivation or an author statement is required to choose between facet and building land-cover scale.
issue #46
Methodsupported
The release row calls the tuple an average, but states neither the selected inputs nor the operation. Assumed is therefore the honest production method until a verifier adopts an explicit reconstruction or the historical calculation is recovered.
issue #65
Identitysupported
Stable path, legacy ID 50240024, code 799, display name and exact triplet preserve the generic release identity. The related Beijing record remains a distinct application reuse of this code.

Scientific note

The exact code-799 tuple is directly recoverable from a pinned SUEWS release table, so the record no longer needs an unsupported Järvi et al. (2014) citation. The table calls it an average but does not document its calculation. A reproducible 11-code arithmetic reconstruction exists and includes the two not-recommended rows named by the label, but uniqueness of a numeric subset is not historical lineage. The record therefore cites the public configuration artifact and remains method assumed for focused human review. No coefficient, stable identity or downstream selection changes.

Model-ready fragment

Paste under ohm_coefficients in a SUEWS YAML configuration; every value carries its citation.

a1:
  value: 0.238
  ref:
    ID: umep-dev2017a-input-tables
    DOI: null
    desc: null
a2:
  value: 0.427
  ref:
    ID: umep-dev2017a-input-tables
    DOI: null
    desc: null
a3:
  value: -16.7
  ref:
    ID: umep-dev2017a-input-tables
    DOI: null
    desc: null

Evidence review

UnresolvedReview procedure

Record metadata

Targetohm_coefficients · docs
Schema2026.5 · legacy row 50240024

Used by 1 typology

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