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Evergreen trees · surfaces — Evergreen Forest trees, Havu et al. 2024evetr composite

Surface bundlesevetrhelsinkicity

Composition

This composite is assembled from the entries below. Each evidence record keeps its own scientific review; a separate composition review assesses why these components were selected and how they are mapped.

albedoEvergreen trees generic Awaiting sign-off
alb_min 0.1 · alb_max 0.1
emissivityEvergreen trees generic Awaiting sign-off
emis 0.98
water_storageEvergreen Tree swindon Awaiting sign-off
storage_drain_params.store_min 1.3 · storage_drain_params.store_max 1.3
leaf_area_indexEvergreen Tree (SE England) se-england Curation required
lai.lai_type 1 · lai.lai_min 4 · lai.lai_max 5.1
leaf_growth_powerEvergreen Tree, LaiEq = 1 helsinki Awaiting sign-off
lai.lai_power.growth_lai 0.04 · lai.lai_power.growth_gdd 0.001 · lai.lai_power.senescence_lai -1.5
drainageEvergreenTree generic Awaiting sign-off
storage_drain_params.drain_eq 3 · storage_drain_params.drain_coef_1 0.013 · storage_drain_params.drain_coef_2 1.71
max_vegetation_conductanceEvergreen Tree helsinki Awaiting sign-off
max_conductance 1.7
porosityDummy value generic Agent assessed
biogen_co2Evergreen trees - forest helsinki Awaiting sign-off
alpha_bio_co2 0.031 · beta_bio_co2 7 · theta_bio_co2 0.723
snow_lim_patchEvergreen Tree generic Awaiting sign-off
snowpack_limit 190
vegetation_growthEvergreen Tree helsinki Curation required
lai.base_temperature 5 · lai.base_temperature_senescence 10 · lai.gdd_full 300
ohm · summer_wetMixed Forest [20] McCaughey (1985) Verified
a1 0.11 · a2 0.11 · a3 -12.3
ohm · summer_dryMixed Forest [20] McCaughey (1985) Verified
a1 0.11 · a2 0.11 · a3 -12.3
ohm · winter_wetMixed Forest [20] McCaughey (1985) Verified
a1 0.11 · a2 0.11 · a3 -12.3
ohm · winter_dryMixed Forest [20] McCaughey (1985) Verified
a1 0.11 · a2 0.11 · a3 -12.3

Composition provenance

Curation required

Assembled · assessed by provenance-audit · 2026-09-02. Agent assessment is composition review preparation, not human verification.

Evergreen treesSelected component

Fills albedo. The stable SE England-path record declares target land_cover.evetr, place generic, representativeness generic, applicable_scale land_cover, source jarvi2011 and method literature. Its path and origin preserve later UK application lineage.

Evergreen treesSelected component

Fills emissivity. The record declares target land_cover.evetr, place generic and representativeness generic, and is named "Evergreen trees"; it carries source jarvi2011 and declares method literature.

Evergreen TreeSelected component

Fills water_storage. The record declares target land_cover.evetr, place se-england and representativeness regional, and is named "Evergreen Tree"; its source field reads jarvi2011.

Evergreen Tree (SE England)Selected component

Fills leaf_area_index. The record declares target land_cover.evetr, place se-england and representativeness regional, and is named "Evergreen Tree (SE England)"; it carries source jarvi2011 and declares method literature.

Evergreen Tree, LaiEq = 1Selected component

Fills leaf_growth_power. The record declares target land_cover.evetr, place helsinki and representativeness city, and is named "Evergreen Tree, LaiEq = 1"; its source field reads jarvi2014.

EvergreenTreeSelected component

Fills drainage. The record is the generic, land-cover-scale EvergreenTree literature tuple compiled by Järvi et al.; Havu's archive is retained as later Helsinki application evidence.

Evergreen TreeSelected component

Fills max_vegetation_conductance. The record declares target land_cover.evetr, place helsinki and representativeness city, and is named "Evergreen Tree"; its source field reads havu-m2024.

Dummy valueSelected component

Fills porosity. The record declares target land_cover.evetr, place generic and representativeness generic, and is named "Dummy value"; its source field reads unreferenced.

Evergreen trees - forestSelected component

Fills biogen_co2. The record declares target land_cover.evetr, place helsinki and representativeness city, and is named "Evergreen trees - forest"; its source field reads havu-m2024.

Evergreen TreeSelected component

Fills snow_lim_patch. The stable path and origin retain Helsinki migration lineage, while the record declares target land_cover.evetr, name "Evergreen Tree", place generic, representativeness generic, applicable_scale land_cover, source jarvi2014 and method literature.

Evergreen TreeSelected component

Fills vegetation_growth. The record declares target land_cover.evetr, place helsinki and representativeness city, and is named "Evergreen Tree"; its source field reads jarvi2014.

Mixed Forest [20] McCaughey (1985)Selected component

Fills ohm.summer_wet, ohm.summer_dry, ohm.winter_wet and ohm.winter_dry. The record declares target ohm_coefficients and is named "Mixed Forest [20] McCaughey (1985)"; its source field reads grimmond1991b, it declares method fitted, it carries no season_label and it declares no place or representativeness.

Assessment findings

Composite identitysupported
The composite is named "Evergreen Forest trees, Havu et al. 2024" and declares place helsinki with origin "Helsinki, Finland". The component that distinguishes it from the street and park composites is biogen_co2, which takes records/surfaces/evetr/helsinki--havu-m2024--biogen-co2, named "Evergreen trees - forest" and sourced to havu-m2024; db/sources.yml records that key with year 2024. Label, component and registry agree.
Composite targetsupported
The composite declares target land_cover.evetr, and every component declares that same target except the four OHM positions, which take a record declaring target ohm_coefficients. leaf_area_index takes records/surfaces/evetr/se-england--ward2016--lai and leaf_growth_power takes records/surfaces/evetr/helsinki--havu-m2024--lai-power, both declaring lai.lai_type 1, which satisfies the leaf_area_index coupling rule in schema/parameter_groups.yml, which makes an archetype whose two LAI components carry different lai_type values internally contradictory. All four OHM positions take one record, which carries no season_label, so an undifferentiated season and wet/dry mapping contradicts nothing the component declares.
Own parameter valuesnot applicable
The composite declares no parameters of its own, so every value it delivers is the component's.
Composition rationalenot applicable
The composite claims no composition source, and the repository records no published rationale for this assembly. The components' own sources belong to their evidence assessments, not to this review.
Place applicabilitycuration required
Four components take Helsinki rows. Albedo, emissivity, drainage and snow limit are generic literature parameters, and leaf area index is a regional SE England row. Water storage is a site-scoped Swindon value; using that site result in a Helsinki city archetype needs an explicit composition decision because the database records no Helsinki alternative or published transfer rationale.
Representativenesscuration required
The composite declares representativeness city. Four Helsinki rows are city; albedo, emissivity, drainage, snow limit and porosity are generic; leaf area index is regional; and water storage is a site-scoped Swindon result. That site-to-city transfer requires human curation; the OHM record carries no representativeness.
Slot and season mappingsupported
An assembly of existing records into slots; the composite asserts no value of its own.
Completeness and uniquenesssupported
The composite fills all eleven named slots and the four OHM positions, which is the slot set every deciduous-tree, evergreen-tree and grass archetype in this database uses, so the assembly is complete. The porosity slot takes records/surfaces/evetr/generic--unreferenced--porosity, whose parameters block is empty and whose origin reads "Porisity only used for Deciduous Tree. This is a Dummy Variable", so that slot contributes no value by design rather than by omission. It is one of three Helsinki composites built on Havu et al. rows that differ in exactly one component, biogen_co2, and each of the three takes the biogenic CO2 record whose own name matches its label, so the three are distinct and correctly told apart.

Scientific note

This is a well-formed Helsinki composite. The slots that carry the typology, leaf growth power, maximum conductance and biogenic CO2 all take Helsinki rows sourced to havu-m2024, the biogenic CO2 record is the one named for forest. Slots without Helsinki rows use generic albedo albedo, emissivity and snow limit, regional SE England leaf area index, and site-scoped Swindon water storage; the last transfer requires curation. The two LAI components agree on lai_type 1, the slot set is complete, and one unlabelled coefficient record fills all four OHM positions. Drainage is openly generic land-cover literature evidence, while its sidecar records Havu's later Helsinki application.

Model-ready fragment

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

alb_min:
  value: 0.1
  ref:
    ID: jarvi2011
    DOI: 10.1016/j.jhydrol.2011.10.001
    desc: generic, generic, land_cover
alb_max:
  value: 0.1
  ref:
    ID: jarvi2011
    DOI: 10.1016/j.jhydrol.2011.10.001
    desc: generic, generic, land_cover
emis:
  value: 0.98
  ref:
    ID: jarvi2011
    DOI: 10.1016/j.jhydrol.2011.10.001
    desc: generic, generic
storage_drain_params:
  store_min:
    value: 1.3
    ref:
      ID: ward2018
      DOI: 10.1002/joc.5200
      desc: swindon, site
  store_max:
    value: 1.3
    ref:
      ID: ward2018
      DOI: 10.1002/joc.5200
      desc: swindon, site
  drain_eq:
    value: 3
    ref:
      ID: jarvi2011
      DOI: 10.1016/j.jhydrol.2011.10.001
      desc: generic, generic, land_cover
  drain_coef_1:
    value: 0.013
    ref:
      ID: jarvi2011
      DOI: 10.1016/j.jhydrol.2011.10.001
      desc: generic, generic, land_cover
  drain_coef_2:
    value: 1.71
    ref:
      ID: jarvi2011
      DOI: 10.1016/j.jhydrol.2011.10.001
      desc: generic, generic, land_cover
lai:
  lai_type:
    value: 1
    ref:
      ID: jarvi2014
      DOI: 10.5194/gmd-7-1691-2014
      desc: helsinki, city
  lai_min:
    value: 4
    ref:
      ID: jarvi2014
      DOI: 10.5194/gmd-7-1691-2014
      desc: helsinki, city
  lai_max:
    value: 5.1
    ref:
      ID: jarvi2014
      DOI: 10.5194/gmd-7-1691-2014
      desc: helsinki, city
  lai_power:
    growth_lai:
      value: 0.04
      ref:
        ID: jarvi2014
        DOI: 10.5194/gmd-7-1691-2014
        desc: helsinki, city
    growth_gdd:
      value: 0.001
      ref:
        ID: jarvi2014
        DOI: 10.5194/gmd-7-1691-2014
        desc: helsinki, city
    senescence_lai:
      value: -1.5
      ref:
        ID: jarvi2014
        DOI: 10.5194/gmd-7-1691-2014
        desc: helsinki, city
    senescence_sdd:
      value: 0.0015
      ref:
        ID: jarvi2014
        DOI: 10.5194/gmd-7-1691-2014
        desc: helsinki, city
  base_temperature:
    value: 5
    ref:
      ID: jarvi2014
      DOI: 10.5194/gmd-7-1691-2014
      desc: helsinki, city
  base_temperature_senescence:
    value: 10
    ref:
      ID: jarvi2014
      DOI: 10.5194/gmd-7-1691-2014
      desc: helsinki, city
  gdd_full:
    value: 300
    ref:
      ID: jarvi2014
      DOI: 10.5194/gmd-7-1691-2014
      desc: helsinki, city
  sdd_full:
    value: -450
    ref:
      ID: jarvi2014
      DOI: 10.5194/gmd-7-1691-2014
      desc: helsinki, city
wet_threshold:
  value: 1.3
  ref:
    ID: jarvi2011
    DOI: 10.1016/j.jhydrol.2011.10.001
    desc: generic, generic, land_cover
max_conductance:
  value: 1.7
  ref:
    ID: havu-m2024
    DOI: 10.1016/j.ufug.2024.128261
    desc: helsinki, city
alpha_bio_co2:
  value: 0.031
  ref:
    ID: bellucco2017
    DOI: 10.1016/j.agrformet.2016.12.011
    desc: helsinki, site
beta_bio_co2:
  value: 7
  ref:
    ID: havu-m2024
    DOI: 10.1016/j.ufug.2024.128261
    desc: finland, site
theta_bio_co2:
  value: 0.723
  ref:
    ID: bellucco2017
    DOI: 10.1016/j.agrformet.2016.12.011
    desc: helsinki, site
resp_a:
  value: 1.5
  ref:
    ID: havu-m2024
    DOI: 10.1016/j.ufug.2024.128261
    desc: finland, site
resp_b:
  value: 0.064
  ref:
    ID: havu-m2024
    DOI: 10.1016/j.ufug.2024.128261
    desc: finland, site
min_res_bioco2:
  value: 0.6
  ref:
    ID: jarvi2019
    DOI: 10.1029/2018JD029576
    desc: finland, site
snowpack_limit:
  value: 190
  ref:
    ID: jarvi2014
    DOI: 10.5194/gmd-7-1691-2014
    desc: generic, generic, land_cover
ohm_coef:
  summer_wet:
    a1:
      value: 0.11
      ref:
        ID: grimmond1991b
        DOI: 10.1016/0957-1272(91)90003-W
        desc: land_cover
    a2:
      value: 0.11
      ref:
        ID: grimmond1991b
        DOI: 10.1016/0957-1272(91)90003-W
        desc: land_cover
    a3:
      value: -12.3
      ref:
        ID: grimmond1991b
        DOI: 10.1016/0957-1272(91)90003-W
        desc: land_cover
  summer_dry:
    a1:
      value: 0.11
      ref:
        ID: grimmond1991b
        DOI: 10.1016/0957-1272(91)90003-W
        desc: land_cover
    a2:
      value: 0.11
      ref:
        ID: grimmond1991b
        DOI: 10.1016/0957-1272(91)90003-W
        desc: land_cover
    a3:
      value: -12.3
      ref:
        ID: grimmond1991b
        DOI: 10.1016/0957-1272(91)90003-W
        desc: land_cover
  winter_wet:
    a1:
      value: 0.11
      ref:
        ID: grimmond1991b
        DOI: 10.1016/0957-1272(91)90003-W
        desc: land_cover
    a2:
      value: 0.11
      ref:
        ID: grimmond1991b
        DOI: 10.1016/0957-1272(91)90003-W
        desc: land_cover
    a3:
      value: -12.3
      ref:
        ID: grimmond1991b
        DOI: 10.1016/0957-1272(91)90003-W
        desc: land_cover
  winter_dry:
    a1:
      value: 0.11
      ref:
        ID: grimmond1991b
        DOI: 10.1016/0957-1272(91)90003-W
        desc: land_cover
    a2:
      value: 0.11
      ref:
        ID: grimmond1991b
        DOI: 10.1016/0957-1272(91)90003-W
        desc: land_cover
    a3:
      value: -12.3
      ref:
        ID: grimmond1991b
        DOI: 10.1016/0957-1272(91)90003-W
        desc: land_cover

Composition review

Curation requiredReview procedure

Composite metadata

Scopecity
Targetland_cover.evetr · docs
Origin“Helsinki, Finland” (verbatim legacy string)
Schema2026.5 · legacy row 24240012
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