SUEWS parameter database

curated values, linked and searchable, a citation on every one Home · Map · suews.io
browse · records/ohm/generic--unreferenced--paved--asphalt-902.yml

OHM coefficients — Asphalt [902] evidence record

a10.64
a20.32
a3-43.6
ohmsaitama-universitysiteMaterial or specimenAsaeda 1993

Parameters

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

a10.64
a20.32
a3-43.6

Provenance evidence

Awaiting sign-off

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

The subsurface transport of heat and moisture and its effect on the environment: A numerical modelParameter source

Where: Section 3.1, Experimental data, p. 166-167

Locates the 1990-1991 pavement-slab experiment at Saitama University campus.

Where: Table I and least-squares method text, p. 174-175

Reports asphalt k1 = 0.64, k2 = 1142.16 s and k3 = -43.58 W m-2 and states that coefficients were fitted to hourly fluxes by least squares.

Assessment findings

Namesupported
Targetsupported
Valuessupported
Asaeda and Ca Table I gives k1 = 0.64, k2 = 1142.16 s (0.3173 h) and k3 = -43.58 W m-2, which round to the stored 0.64, 0.32 and -43.6.
Sourcesupported
Placesupported
Representativenesssupported
Applicable Scalesupported
Asaeda and Ca fit the tuple to a dry asphalt experimental pavement specimen, so the supported unit is the material rather than an area-weighted paved land-cover class.
issue #46
Methodsupported
Identitysupported

Scientific note

The primary article supplies the exact fitted values and method and locates the experiment at Saitama University campus. The stable record path is retained while the evidence envelope now records the site and site-scale representativeness explicitly.

Model-ready fragment

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

a1:
  value: 0.64
  ref:
    ID: asaeda1993
    DOI: 10.1007/BF00708822
    desc: saitama-university, site, material
a2:
  value: 0.32
  ref:
    ID: asaeda1993
    DOI: 10.1007/BF00708822
    desc: saitama-university, site, material
a3:
  value: -43.6
  ref:
    ID: asaeda1993
    DOI: 10.1007/BF00708822
    desc: saitama-university, site, material

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 scaleMaterial or specimen
Targetohm_coefficients · docs
Schema2026.5 · legacy row 50240004
Report an issue