SUEWS parameter database

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Evergreen trees · leaf area index — Evergreen Tree, LaiEq = 1evetr evidence record

lai.lai_power.growth_lai0.04
lai.lai_power.growth_gdd0.0005
lai.lai_power.senescence_lai-1.5
lai.lai_power.senescence_sdd0.0025
laievetrzurichsiteStagakis S. 2025

Parameters

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

Labelled fields override the record-level citation or scope; unlabelled fields use the record metadata.

lai.lai_power.growth_lai0.04 Järvi 2014
lai.lai_power.growth_gdd0.0005 Järvi 2011
lai.lai_power.senescence_lai-1.5 Järvi 2014
lai.lai_power.senescence_sdd0.0025
lai.lai_type1 UMEP-dev 2020

Provenance evidence

Awaiting sign-off

Published value · assessed by provenance-audit · 2026-09-02. Agent assessment is evidence preparation, not human verification.

Intercomparison of biogenic CO2 flux models in four urban parks in the city of ZurichParameter source

Applies to: parameters.lai.lai_power.senescence_sdd

Where: Supplement Table S3, Parameters used by SUEWS model, Trees column, p. 3

Publishes growth_lai 0.04, growth_gdd 0.0005, senescence_lai -1.5 and senescence_sdd 0.0025. The reference column credits the first three to Järvi et al. 2011/2014 and identifies the final Järvi 2014 coefficient as modified.

Intercomparison of biogenic CO2 flux models in four urban parks in the city of ZurichValidation

Where: Table A1, SUEWS phenology equation, p. 2155

Prints the power-form daily LAI equation used by SUEWS in the Zurich model comparison.

Intercomparison of biogenic CO2 flux models in four urban parks in the city of ZurichValidation

Where: Title, abstract and Section 2.1, p. 2133

Defines the study domain as four urban parks in Zurich and identifies the park-level evaluation.

Development of the Surface Urban Energy and Water Balance Scheme (SUEWS) for cold climate citiesParameter source

Applies to: parameters.lai.lai_power.growth_lai, parameters.lai.lai_power.senescence_lai

Where: Appendix A, Leaf area index, Equation A1, p. 1707

Publishes the modified LAI power formulation, including growth_lai 0.04, senescence_lai -1.5 and the original senescence_sdd factor 0.0015.

The Surface Urban Energy and Water Balance Scheme (SUEWS): Evaluation in Los Angeles and Vancouver.Parameter source

Applies to: parameters.lai.lai_power.growth_gdd

Where: Section 2.2, Leaf area index, Equation 4, p. 221

Publishes the 0.0005 degree-day factor inherited as growth_gdd in Table S3.

SUEWS Documentation, Release v2020aParameter source

Applies to: parameters.lai.lai_type

Where: LAIEq and Leaf Growth/Off Power entries, p. 88

Defines LAIEq 1 as the Järvi et al. 2014 formulation and lists its characteristic 0.04 and -1.5 power coefficients, distinguishing it from LAIEq 0.

Assessment findings

Namesupported
Stagakis et al. print the Järvi-style power phenology equation used by SUEWS, and the official v2020a documentation maps that formulation to LAIEq 1. The retained name therefore describes the published model configuration.
Targetsupported
Supplement Table S3 assigns the four LAI-power coefficients to its Trees column, matching land_cover.evetr in this retained evergreen-tree record.
Valuessupported
Table S3 publishes the complete stored tuple 0.04, 0.0005, -1.5 and 0.0025. Järvi et al. publish the inherited leaves; Stagakis et al. explicitly mark the final 0.0025 senescence factor as a modification of the Järvi 2014 value.
Sourcesupported
The envelope source remains the publication that reports and applies the exact mixed tuple. Parameter-level provenance now attributes growth_lai and senescence_lai to Järvi 2014, growth_gdd to Järvi 2011, and the selector semantics to the official v2020a documentation; Stagakis remains the source of the modified senescence_sdd leaf.
Placesupported
Zurich is the documented application location for the exact mixed tuple. The parameter-level overrides distinguish publication sources but do not claim place-free reach for the inherited leaves; every leaf retains the Zurich site application envelope.
Representativenesssupported
The study evaluates SUEWS in four named Zurich parks, not as a city-wide determination. Site is therefore the supported envelope reach.
Methodsupported
Literature records direct adoption of the exact parameterisation published in Table S3; the database performs no new fit or transformation.
Identitysupported
The stable path, target and legacy ID identify the Zurich evergreen-tree configuration. The source gives one Trees tuple, so identical tree coefficients in the sibling target records are intentional rather than accidental duplicates.

Scientific note

The apparent blocker came from treating a mixed published tuple as if every leaf had one origin. Stagakis et al. publish and apply the exact four-value tuple in Zurich. Their reference column traces three leaves to Järvi et al. and marks the fourth as modified; parameter_provenance now preserves those roles. Table A1 and the official v2020a LAIEq definition together establish selector 1. The exact values, stable path, target, origin and legacy ID are unchanged. The active envelope reach is narrowed from city to site because the study covers four parks.

Model-ready fragment

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

lai:
  lai_power:
    growth_lai:
      value: 0.04
      ref:
        ID: jarvi2014
        DOI: 10.5194/gmd-7-1691-2014
        desc: zurich, site
    growth_gdd:
      value: 0.0005
      ref:
        ID: jarvi2011
        DOI: 10.1016/j.jhydrol.2011.10.001
        desc: zurich, site
    senescence_lai:
      value: -1.5
      ref:
        ID: jarvi2014
        DOI: 10.5194/gmd-7-1691-2014
        desc: zurich, site
    senescence_sdd:
      value: 0.0025
      ref:
        ID: stagakis-s2024
        DOI: 10.5194/bg-22-2133-2025
        desc: zurich, site
  lai_type:
    value: 1
    ref:
      ID: umep-dev2020a-docs
      DOI: null
      desc: zurich, site

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

Placezurich
Scopesite
Targetland_cover.evetr · docs
Origin“Zurich” (verbatim legacy string)
Schema2026.5 · legacy row 32240030

Used by 2 typologies

Same study, same place

all 7 sets from stagakis-s2024 at zurich →
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