SUEWS parameter database

curated values, linked and searchable, a citation on every one Home · Map · suews.io
browse · records/surfaces/grass/helsinki--havu-m2024--lai-power.yml

Grass · leaf area index — Grass, LaiEq = 1grass evidence record

lai.lai_power.growth_lai0.04
lai.lai_power.growth_gdd0.002
lai.lai_power.senescence_lai-1.5
lai.lai_power.senescence_sdd0.0005
laigrasshelsinkicityHavu 2024

Parameters

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

lai.lai_power.growth_lai0.04
lai.lai_power.growth_gdd0.002
lai.lai_power.senescence_lai-1.5
lai.lai_power.senescence_sdd0.0005
lai.lai_type1

Provenance evidence

Awaiting sign-off

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

Data used in manuscript CO2 uptake of urban vegetation in a warming Nordic cityParameter source

Where: Zenodo Input_met.zip/Input_met/SUEWS_Veg.txt, grass codes 860 and 865

Applies LaiEq 1 with growth_lai 0.04, growth_gdd 0.002, senescence_lai -1.5 and senescence_sdd 0.0005 to the archived Helsinki grass/low-vegetation configurations.

CO2 uptake of urban vegetation in a warming Nordic cityValidation

Where: Supplement Table 1, updated LAI parameterisation for deciduous trees, p. 1

Publishes the same four coefficients specifically for deciduous trees; it does not describe a separate grass fit or derivation.

Deciduous Tree, LaiEq = 1Related record

Carries the same tuple under the deciduous-tree identity described by the publication.

Assessment findings

Namesupported
Grass, LaiEq = 1 preserves the grass configuration identity explicitly stored by the archived SUEWS vegetation rows; it does not claim that the associated article derived a grass parameter set.
Targetsupported
The archived rows apply the coefficients to SUEWS grass/low-vegetation land-cover inputs.
Valuessupported
The citable Zenodo configuration stores the exact four coefficients and applies them to grass. The associated supplement publishes the same tuple only for updated deciduous trees, establishing that the grass row is configuration reuse rather than a separately derived grass parameterisation.
Sourcesupported
The Zenodo dataset is the direct exact-value source for the executable grass configuration. The journal article is retained as validation of the tuple's deciduous-tree lineage, not exported as though it published a grass derivation.
issue #226
Placesupported
The archived surface rows identify the configuration as a Helsinki application.
Representativenesssupported
City records the reach of the archived Helsinki model configuration, not an observational claim that the four coefficients were independently determined from grass across Helsinki.
Methodsupported
Literature denotes direct transcription of the citable archived configuration. No new fit or grass-specific derivation is asserted.
Identitysupported
The separate grass record is retained because the archive deliberately selects the tuple for grass, while the related deciduous record preserves the parameter class described by the paper.

Scientific note

The missing grass publication is not a blocker because the canonical claim is narrower: this is an archived executable configuration reuse, not a grass-specific scientific determination. The public Zenodo input explicitly applies the four values to grass, while the article explains their deciduous-tree lineage. Using the dataset as the record source makes both roles visible without inventing a grass derivation or requiring an author statement to confirm what the archived input says.

Model-ready fragment

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

lai:
  lai_power:
    growth_lai:
      value: 0.04
      ref:
        ID: havu-m2024-data
        DOI: 10.5281/zenodo.10572180
        desc: helsinki, city
    growth_gdd:
      value: 0.002
      ref:
        ID: havu-m2024-data
        DOI: 10.5281/zenodo.10572180
        desc: helsinki, city
    senescence_lai:
      value: -1.5
      ref:
        ID: havu-m2024-data
        DOI: 10.5281/zenodo.10572180
        desc: helsinki, city
    senescence_sdd:
      value: 0.0005
      ref:
        ID: havu-m2024-data
        DOI: 10.5281/zenodo.10572180
        desc: helsinki, city
  lai_type:
    value: 1
    ref:
      ID: havu-m2024-data
      DOI: 10.5281/zenodo.10572180
      desc: helsinki, city

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

Scopecity
Targetland_cover.grass · docs
Origin“Helsinki” (verbatim legacy string)
Schema2026.5 · legacy row 32240035

Used by 4 typologies

Same study, same place

all 6 sets from havu-m2024-data at helsinki →
Report an issue