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Grass · anohm coefficients — Grass (UF)grass evidence record unreferenced

rho_cp_anohm500000
k_anohm0.2
ch_anohm1
anohmgrassgenericgenericLand-cover classunreferenced

Parameters

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

rho_cp_anohm500000
k_anohm0.2
ch_anohm1

Provenance evidence

Awaiting sign-off

Assumed · assessed by provenance-audit · 2026-08-25. Agent assessment is evidence preparation, not human verification.

SUEWS v2017a input tables and generator workbookLater compilation

Where: SUEWS_Veg.txt, code 702 Grass London row

Stores AnOHM rho_cp 500000, k 0.2 and Ch 1 on the Grass London configuration row without an AnOHM parameter citation.

The Analytical Objective Hysteresis Model (AnOHM v1.0): methodology to determine bulk storage heat flux coefficientsValidation

Where: Table 1(a), input-parameter sensitivity distributions, p. 2880

Publishes generic means of 2.0 MJ m-3 K-1, 1.2 W m-1 K-1 and 4, not the stored tuple.

Where: Table 3, US-Wlr grassland calibration, p. 2883

Publishes grassland Cp 0.31 MJ m-3 K-1, k 0.43 W m-1 K-1 and Ch 1.9, not 0.5/0.2/1.

Assessment findings

Namesupported
Grass is the surface named by the v2017a configuration row. The UF suffix is retained strictly as a migrated legacy identifier whose expansion remains unknown, not as a scientific claim.
Targetsupported
The exact tuple is stored on the SUEWS grass surface row and belongs to land_cover.grass.
Valuessupported
The v2017a text table stores 500000, 0.2 and 1 exactly. Sun et al. publish different generic and calibrated grassland values, so the tuple is supported only as the preserved configuration assumption confirmed by author adjudication.
issue #409
Sourcesupported
Unreferenced is correct. Author adjudication confirms that Halldin et al. supplied no parameter provenance or input data for this tuple; the release row is compilation lineage and Sun et al. validate AnOHM without publishing the exact values.
issue #409
Placesupported
Generic is the active evidence place because no publication determines this tuple at a study location. Author adjudication confirms that London is only the application label retained in the stable path and origin.
issue #409
Representativenesssupported
Generic records the deliberately assumed land-cover default; city would falsely present the tuple as a London observational or fitted result.
Applicable Scalesupported
Author adjudication confirms that the tuple applies to the grass land-cover class rather than a whole-neighbourhood bulk calibration.
Methodsupported
Author adjudication confirms that the tuple was deliberately assumed, not derived or calibrated.
issue #409
Identitysupported
The stable path, London origin, legacy ID, target, UF label and values preserve the migrated configuration. The unknown expansion of UF is documented rather than guessed.
issue #409

Scientific note

The exact 500000/0.2/1 tuple first appears in the v2017a text table as a London Grass configuration. Author adjudication in issue 409 confirms that it is a deliberately assumed generic grass land-cover default, London is only its application label, and Halldin et al. have no parameter-provenance role. The v2017a table is compilation evidence and Sun et al. provide validation. UF remains an unresolved legacy abbreviation and is preserved without inventing an expansion.

Model-ready fragment

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

rho_cp_anohm:
  value: 500000
  ref:
    ID: unreferenced
    DOI: null
    desc: generic, generic, land_cover
k_anohm:
  value: 0.2
  ref:
    ID: unreferenced
    DOI: null
    desc: generic, generic, land_cover
ch_anohm:
  value: 1
  ref:
    ID: unreferenced
    DOI: null
    desc: generic, generic, land_cover

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

Sourceunreferenced — no citation was recorded in the legacy database; treat with care
Placegeneric
Scopegeneric
Applicable scaleLand-cover class
Targetland_cover.grass · docs
Origin“London” (verbatim legacy string)
Schema2026.5 · legacy row 51240012

Same study, same place

+9 more
all 18 sets from unreferenced at generic →
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