SUEWS parameter database

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OHM coefficients — Canyon, Vancouver [11] evidence record

a10.32
a20.01
a3-27.7
ohmvancouversiteFacet or componentGrimmond 1991

Parameters

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

a10.32
a20.01
a3-27.7

Provenance evidence

Awaiting sign-off

Fitted · assessed by provenance-audit · 2026-08-21. Agent assessment is evidence preparation, not human verification.

Assessment findings

Namesupported
Targetsupported
Valuessupported
Sourcesupported
Placesupported
The parameter table identifies the N-S canyon observation input as Vancouver.
Representativenesssupported
The fit comes from one canyon dataset and supports site rather than city scale.
Applicable Scalesupported
The coefficients are fitted to one north-south urban canyon dataset, so the described physical unit is a canyon facet rather than an area-weighted neighborhood.
issue #46
Methodsupported
Identitysupported

Scientific note

Grimmond et al. (1991) is the canonical parameter publication and Nunez is the observation source. The record is classified at the site scale supported by the single canyon dataset; the raw origin typo is retained only as migration history and is not treated as evidence.

Model-ready fragment

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

a1:
  value: 0.32
  ref:
    ID: grimmond1991b
    DOI: 10.1016/0957-1272(91)90003-W
    desc: vancouver, site, facet
a2:
  value: 0.01
  ref:
    ID: grimmond1991b
    DOI: 10.1016/0957-1272(91)90003-W
    desc: vancouver, site, facet
a3:
  value: -27.7
  ref:
    ID: grimmond1991b
    DOI: 10.1016/0957-1272(91)90003-W
    desc: vancouver, site, facet

Evidence review

Awaiting sign-offSign off evidence on GitHub

Raises a prefilled sign-off issue. CI accepts it only when the issue author is in the verifier registry and the evidence revision is still current.

Review procedure

Record metadata

Scopesite
Applicable scaleFacet or component
Targetohm_coefficients · docs
Origin“Vanvouver” (verbatim legacy string)
Schema2026.5 · legacy row 50240014
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