SUEWS parameter database

curated values, linked and searchable, a citation on every one Home · Map · suews.io
browse · archetypes/surfaces/dectr/helsinki-finland--mixed-dec-jarvi-et-al-2014.yml

Deciduous trees · surfaces — Mixed Dec, Järvi et al (2014)dectr composite

Surface bundlesdectrhelsinkicity

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.

albedoDeciduous Forest generic Awaiting sign-off
alb_min 0.16 · alb_max 0.16
emissivityDeciduous trees generic Awaiting sign-off
emis 0.98
water_storageDeciduous Tree swindon Awaiting sign-off
storage_drain_params.store_min 0.3 · storage_drain_params.store_max 0.8
leaf_area_indexDeciduous Tree (SE England) se-england Curation required
lai.lai_type 1 · lai.lai_min 1 · lai.lai_max 5.5
leaf_growth_powerDeciduous Tree, LaiEq = 1 helsinki Awaiting sign-off
lai.lai_power.growth_lai 0.04 · lai.lai_power.growth_gdd 0.002 · lai.lai_power.senescence_lai -1.5
drainageDeciduous Tree generic Awaiting sign-off
storage_drain_params.drain_eq 2 · storage_drain_params.drain_coef_1 0.013 · storage_drain_params.drain_coef_2 1.71
max_vegetation_conductanceDeciduous Tree generic Awaiting sign-off
max_conductance 11.7
porosityDeciduous Tree generic Awaiting sign-off
porosity_min_deciduous 0.2 · porosity_max_deciduous 0.6
biogen_co2Deciduous trees - street helsinki Awaiting sign-off
alpha_bio_co2 0.031 · beta_bio_co2 8.3463 · theta_bio_co2 0.723
snow_lim_patchDeciduous Tree generic Awaiting sign-off
snowpack_limit 190
vegetation_growthDeciduous Tree helsinki Curation required
lai.base_temperature 5 · lai.base_temperature_senescence 10 · lai.gdd_full 300
ohm · summer_wetVegetation (average). [200] This is the average of Codes 20, 30, 50, 51, 52, 53, 60 (i.e. includes soil and water). Unresolved
a1 0.336 · a2 0.313 · a3 -31.4
ohm · summer_dryVegetation (average). [200] This is the average of Codes 20, 30, 50, 51, 52, 53, 60 (i.e. includes soil and water). Unresolved
a1 0.336 · a2 0.313 · a3 -31.4
ohm · winter_wetVegetation (average). [200] This is the average of Codes 20, 30, 50, 51, 52, 53, 60 (i.e. includes soil and water). Unresolved
a1 0.336 · a2 0.313 · a3 -31.4
ohm · winter_dryVegetation (average). [200] This is the average of Codes 20, 30, 50, 51, 52, 53, 60 (i.e. includes soil and water). Unresolved
a1 0.336 · a2 0.313 · a3 -31.4

Composition provenance

Curation required

Assembled · assessed by provenance-audit · 2026-08-23. Agent assessment is composition review preparation, not human verification.

Vegetation (average). [200] This is the average of Codes 20, 30, 50, 51, 52, 53, 60 (i.e. includes soil and water).Selected component

Fills the four OHM positions summer_wet, summer_dry, winter_wet and winter_dry. The record declares target ohm_coefficients, source unreferenced, no place and no representativeness, and is named "Vegetation (average). [200] This is the average of Codes 20, 30, 50, 51, 52, 53, 60 (i.e. includes soil and water).". It declares no season_label, and its own name states that what it averages includes soil and water as well as vegetation.

Deciduous trees - streetSelected component

Fills biogen_co2. The record declares target land_cover.dectr, place helsinki and representativeness city. It is named "Deciduous trees - street" and carries source havu-m2024, so it describes a street-tree canopy rather than the mixed deciduous cover the composite is named for.

Deciduous Tree, LaiEq = 1Selected component

Fills leaf_growth_power. The record declares target land_cover.dectr, place helsinki and representativeness city. It is named "Deciduous Tree, LaiEq = 1", carries source havu-m2024 and declares lai.lai_type 1, matching the leaf_area_index component.

Deciduous TreeSelected component

Fills vegetation_growth. The record declares target land_cover.dectr, place helsinki and representativeness city. It carries source jarvi2014 and supplies base_temperature, base_temperature_senescence, gdd_full and sdd_full as one set; its place is the composite's own.

Deciduous TreeSelected component

Fills snow_lim_patch. The stable path and origin retain Helsinki migration lineage, while the record declares target land_cover.dectr, place generic, representativeness generic, applicable_scale land_cover, source jarvi2014 and method literature. It supplies the published 190 mm land-cover default.

Deciduous ForestSelected component

Fills albedo. The record declares target land_cover.dectr, place generic and representativeness generic. It is named "Deciduous Forest", carries source vargo2013 and declares method literature.

Deciduous TreeSelected component

Fills drainage. The record declares target land_cover.dectr, place generic, representativeness generic and applicable_scale land_cover. It is named "Deciduous Tree", carries source jarvi2011, declares method literature and uses storage_drain_params.drain_eq 2. Its stable London path and origin retain release-application lineage without presenting the values as London evidence.

Deciduous TreeSelected component

Fills porosity. The record declares target land_cover.dectr, place generic, representativeness generic, applicable_scale land_cover, source unreferenced and method assumed. It supplies porosity_min_deciduous and porosity_max_deciduous to all eight deciduous-tree composites.

Deciduous treesSelected component

Fills emissivity. The record declares target land_cover.dectr, place generic and representativeness generic. It is named "Deciduous trees", carries source oke1987 and declares method literature.

Deciduous Tree (SE England)Selected component

Fills leaf_area_index. The record declares target land_cover.dectr, place se-england and representativeness regional. It is named "Deciduous Tree (SE England)", carries source jarvi2011, declares method literature and has lai.lai_type 1.

Deciduous TreeSelected component

Fills water_storage. The record declares target land_cover.dectr, place se-england and representativeness regional. It carries source jarvi2011 and is the store_min and store_max entry of every deciduous-tree composite.

Deciduous TreeSelected component

Fills max_vegetation_conductance. The record declares target land_cover.dectr, place generic and representativeness generic. Its path and its origin field read Vancouver, but its place is generic and its source is breuer2003, registered in db/sources.yml as "Plant parameter values for models in Temperate climates", so the entry is a literature value rather than a Vancouver measurement.

Assessment findings

Composite identitycuration required
The composite is named "Mixed Dec, Järvi et al (2014)", and two components declare source jarvi2014: records/surfaces/dectr/helsinki--jarvi2014--snow-lim and records/surfaces/dectr/helsinki--jarvi2014--phenology. The slots that describe how the canopy behaves do not. The leaf growth power and the biogenic CO2 set declare source havu-m2024, registered in db/sources.yml with year 2024, and the maximum conductance declares source breuer2003, so a label naming a 2014 study stands over a selection made from later and earlier work. The biogenic component is named "Deciduous trees - street", which is not a mixed deciduous cover and is the record the street-trees composite does not take. Whether the label or the selection should move is a curation decision.
Composite targetsupported
The composite's own target is land_cover.dectr. Eleven of its twelve components declare target land_cover.dectr, and the four OHM positions take a record declaring ohm_coefficients, the type that slot carries; what that record averages is taken up under representativeness rather than here. The leaf_area_index and leaf_growth_power components both declare lai.lai_type 1, so the pair belongs to one LAI equation, which is the coupling schema/parameter_groups.yml makes a rule for that slot pair.
Own parameter valuesnot applicable
The composite declares no parameter overrides of its own.
Composition rationalenot applicable
The composite claims no composition source, and the repository records no published rationale for this typology. The components' own sources belong to their evidence assessments, not to this review.
Place applicabilitycuration required
The composite claims place helsinki, and three of its twelve components carry that place. The degree-day thresholds are a Helsinki record, while snowpack limit is a generic Järvi land-cover default. One component carries place swindon, one carries place se-england, and six are generic. The OHM record carries no place. The site-scoped Swindon water-storage import needs an explicit composition rationale. The leaf_area_index import is forced, since db/records/surfaces/dectr holds leaf-area-index records placed at beijing, se-england, shanghai and zurich and none placed at helsinki. The drainage component is now correctly classed as the generic Järvi literature tuple; its stable London path and origin preserve application lineage rather than claiming London evidence.
Representativenesscuration required
The composite claims representativeness city. Three components are city, one is regional, six are generic, the Swindon water-storage record is site-scoped and the remaining OHM component declares no representativeness. The site result is narrower than the city archetype. The OHM record carries source unreferenced and states in its own name that it averages codes including soil and water. A maintainer should decide whether that unclassified component is acceptable in a city composite or replace it.
Slot and season mappingsupported
The composite assembles existing records into slots and produces no value of its own. All four OHM positions take the same record, which declares no season_label, and no OHM record in the database declares a wet or dry label, so one season-agnostic coefficient set in all four positions is the only mapping the entries support.
Completeness and uniquenesssupported
Twelve distinct records fill the fifteen slot positions the deciduous-tree composites use, and every one of those slots is filled. The composite is the only one of the eight to take records/surfaces/dectr/london--jarvi2011--drainage, records/surfaces/dectr/vancouver--jarvi2011--max-conductance and the vegetation average OHM set, so it is not a duplicate of any sibling; it is, however, the composite that holds the biogenic CO2 record named for street trees. scripts/export_record.py also recognises a water_state slot and db/records/surfaces/dectr holds records/surfaces/dectr/se-england--ward2016--water-state, which no deciduous-tree composite references.

Scientific note

This composite is the least internally consistent of the four placed at Helsinki. Its label names Järvi et al. 2014, and two slots declare source jarvi2014: snowpack limit is a generic land-cover default, while the degree-day thresholds are placed at Helsinki. Both are compatible with the composite's place claim without importing evidence from another named place. Everything that describes the canopy comes from elsewhere. The leaf growth power and the biogenic CO2 set are havu-m2024 records, the maximum conductance is a breuer2003 literature value classed generic, the albedo is a generic Vargo literature constant, porosity is a generic implementation assumption, and the four storage-heat positions take an unreferenced average that its own name says includes soil and water. Two of those choices bear directly on what the composite claims to be: the unreferenced OHM average has no representativeness, and the mixed-deciduous typology takes the biogenic record named for street trees while the street-trees typology takes the one named for trees plus grass. The site-scoped Swindon water-storage import also lacks a composition rationale. The generic snowpack limit, conductance, albedo and porosity are broader than a city and do not create a scale contradiction. The unresolved component choices cannot be settled from the entries and are not faults in the stored values. A maintainer should read the two Helsinki typologies against their publications together, since a swap in one implies the other. The components' values remain subject to their own evidence assessments; this review does not revisit them.

Model-ready fragment

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

alb_min:
  value: 0.16
  ref:
    ID: vargo2013
    DOI: 10.1016/j.jenvman.2012.10.007
    desc: generic, generic
alb_max:
  value: 0.16
  ref:
    ID: vargo2013
    DOI: 10.1016/j.jenvman.2012.10.007
    desc: generic, generic
emis:
  value: 0.98
  ref:
    ID: oke1987
    DOI: null
    desc: generic, generic
storage_drain_params:
  store_min:
    value: 0.3
    ref:
      ID: ward2018
      DOI: 10.1002/joc.5200
      desc: swindon, site
  store_max:
    value: 0.8
    ref:
      ID: ward2018
      DOI: 10.1002/joc.5200
      desc: swindon, site
  drain_eq:
    value: 2
    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: havu-m2024
      DOI: 10.1016/j.ufug.2024.128261
      desc: helsinki, city
  lai_min:
    value: 1
    ref:
      ID: havu-m2024
      DOI: 10.1016/j.ufug.2024.128261
      desc: helsinki, city
  lai_max:
    value: 5.5
    ref:
      ID: havu-m2024
      DOI: 10.1016/j.ufug.2024.128261
      desc: helsinki, city
  lai_power:
    growth_lai:
      value: 0.04
      ref:
        ID: havu-m2024
        DOI: 10.1016/j.ufug.2024.128261
        desc: helsinki, city
    growth_gdd:
      value: 0.002
      ref:
        ID: havu-m2024
        DOI: 10.1016/j.ufug.2024.128261
        desc: helsinki, city
    senescence_lai:
      value: -1.5
      ref:
        ID: havu-m2024
        DOI: 10.1016/j.ufug.2024.128261
        desc: helsinki, city
    senescence_sdd:
      value: 0.0005
      ref:
        ID: havu-m2024
        DOI: 10.1016/j.ufug.2024.128261
        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: 0.8
  ref:
    ID: jarvi2011
    DOI: 10.1016/j.jhydrol.2011.10.001
    desc: generic, generic, land_cover
max_conductance:
  value: 11.7
  ref:
    ID: breuer2003
    DOI: 10.1016/S0304-3800(03)00274-6
    desc: generic, generic
porosity_min_deciduous:
  value: 0.2
  ref:
    ID: unreferenced
    DOI: null
    desc: generic, generic, land_cover
porosity_max_deciduous:
  value: 0.6
  ref:
    ID: unreferenced
    DOI: null
    desc: generic, generic, land_cover
alpha_bio_co2:
  value: 0.031
  ref:
    ID: bellucco2017
    DOI: 10.1016/j.agrformet.2016.12.011
    desc: helsinki, site
beta_bio_co2:
  value: 8.3463
  ref:
    ID: havu2022
    DOI: 10.5194/bg-19-2121-2022
    desc: helsinki, site
theta_bio_co2:
  value: 0.723
  ref:
    ID: bellucco2017
    DOI: 10.1016/j.agrformet.2016.12.011
    desc: helsinki, site
resp_a:
  value: 0.78
  ref:
    ID: havu2022
    DOI: 10.5194/bg-19-2121-2022
    desc: helsinki, site
resp_b:
  value: 0.08
  ref:
    ID: havu2022
    DOI: 10.5194/bg-19-2121-2022
    desc: helsinki, 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: 0.336
      ref:
        ID: unreferenced
        DOI: null
        desc: null
    a2:
      value: 0.313
      ref:
        ID: unreferenced
        DOI: null
        desc: null
    a3:
      value: -31.4
      ref:
        ID: unreferenced
        DOI: null
        desc: null
  summer_dry:
    a1:
      value: 0.336
      ref:
        ID: unreferenced
        DOI: null
        desc: null
    a2:
      value: 0.313
      ref:
        ID: unreferenced
        DOI: null
        desc: null
    a3:
      value: -31.4
      ref:
        ID: unreferenced
        DOI: null
        desc: null
  winter_wet:
    a1:
      value: 0.336
      ref:
        ID: unreferenced
        DOI: null
        desc: null
    a2:
      value: 0.313
      ref:
        ID: unreferenced
        DOI: null
        desc: null
    a3:
      value: -31.4
      ref:
        ID: unreferenced
        DOI: null
        desc: null
  winter_dry:
    a1:
      value: 0.336
      ref:
        ID: unreferenced
        DOI: null
        desc: null
    a2:
      value: 0.313
      ref:
        ID: unreferenced
        DOI: null
        desc: null
    a3:
      value: -31.4
      ref:
        ID: unreferenced
        DOI: null
        desc: null

Composition review

Curation requiredReview procedure

Composite metadata

Scopecity
Targetland_cover.dectr · docs
Origin“Helsinki, Finland” (verbatim legacy string)
Schema2026.5 · legacy row 24240004
Report an issue