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Buildings · surfaces — City centre bldgs composite

Surface bundlesbldgshelsinkicity

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.

albedoCentral London london Awaiting sign-off
alb 0.12
emissivityBuilding generic Awaiting sign-off
emis 0.95
water_storageBuilding generic Awaiting sign-off
storage_drain_params.store_min 0.25 · storage_drain_params.store_max 0.25
drainageBuilding generic Awaiting sign-off
storage_drain_params.drain_eq 3 · storage_drain_params.drain_coef_1 10 · storage_drain_params.drain_coef_2 3
constructionTraditional Stone Neighbourhood City, late 1800s-early 1900s gothenburg Source inaccessible
roof [{'material': 'records/materials/generic--hertwig2024a--steel', 'thickness': 0.01}, {'material': 'records/materials/generic--unreferenced--roofing-felt', 'thickness': 0.01}, {'material': 'records/materials/generic--cibse2015--wood', 'thickness': 0.025}] · roof_insulation_layer 6 · wall [{'material': 'records/materials/generic--hertwig2024a--external-render-lime-sand', 'thickness': 0.01}, {'material': 'records/materials/generic--hertwig2024a--brick-protected', 'thickness': 0.29}, {'material': 'records/materials/generic--cibse2015--wood', 'thickness': 0.025}, {'material': 'records/materials/generic--hertwig2024a--plaster-dense', 'thickness': 0.01}]
snow_lim_patchBuildings generic Awaiting sign-off
snowpack_limit 190
ohm · summer_wetRoof (own for SMEAR III, Helsinki) [750] helsinki Awaiting sign-off
a1 0.19 · a2 0.54 · a3 -15.125
ohm · summer_dryRoof (own for SMEAR III, Helsinki) [750] helsinki Awaiting sign-off
a1 0.19 · a2 0.54 · a3 -15.125
ohm · winter_wetRoof (own for SMEAR III, Helsinki) [750] helsinki Awaiting sign-off
a1 0.19 · a2 0.54 · a3 -15.125
ohm · winter_dryRoof (own for SMEAR III, Helsinki) [750] helsinki Awaiting sign-off
a1 0.19 · a2 0.54 · a3 -15.125

Composition provenance

Curation required

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

Central LondonSelected component

Fills albedo. The record declares target land_cover.bldgs, name 'Central London', place london, representativeness site, applicable_scale land_cover, source ward2016 and method fitted.

BuildingSelected component

Fills emissivity. The record declares target land_cover.bldgs, name 'Building', place generic, representativeness generic, applicable_scale land_cover, source jarvi2011 and method literature.

BuildingSelected component

Fills water_storage. The stable Helsinki-path record declares target land_cover.bldgs, name Building, place generic, representativeness generic, applicable_scale land_cover, source jarvi2011 and method literature. Its Helsinki origin preserves migration/application lineage; the value is published as a generic Building parameter.

BuildingSelected component

Fills drainage. The record declares target land_cover.bldgs, name 'Building', place generic, representativeness generic and applicable_scale land_cover.

Traditional Stone Neighbourhood City, late 1800s-early 1900sSelected component

Fills construction. The record declares target construction, name 'Traditional Stone Neighbourhood City, late 1800s-early 1900s', place gothenburg, origin 'Gothenburg, Sweden', representativeness city and source bjork2002, and its wall stack carries records/materials/generic--hertwig2024a--brick-protected at 0.29 m.

BuildingsSelected component

Fills snow_lim_patch. The stable path and origin retain Helsinki migration lineage, while the record declares target land_cover.bldgs, name 'Buildings', place generic, representativeness generic, applicable_scale land_cover, source jarvi2014 and method literature, and carries snowpack_limit. It is the only buildings snowpack_limit record in the database.

Roof (own for SMEAR III, Helsinki) [750]Selected component

Fills the summer_wet, summer_dry, winter_wet and winter_dry ohm slots. The record declares target ohm_coefficients, name 'Roof (own for SMEAR III, Helsinki) [750]', place helsinki, representativeness city, source unreferenced and method calculated, and carries no season_label.

Assessment findings

Composite identitysupported
The name field of the composite reads 'City centre ', with a trailing space, its place field reads helsinki and its origin field Helsinki, so together with the entry path archetypes/surfaces/bldgs/helsinki--city-centre the label identifies a Helsinki city-centre building typology. The trailing space is cosmetic and does not impair identification; it is shared with archetypes/surfaces/bldgs/beijing--city-centre and with no other buildings archetype.
Composite targetsupported
The composite declares target land_cover.bldgs, which agrees with its position under archetypes/surfaces/bldgs. The albedo, emissivity, water_storage, drainage and snow_lim_patch slots each take a record declaring target land_cover.bldgs; the construction slot takes a record declaring target construction; and the four ohm slots take a record declaring target ohm_coefficients. records/ohm/helsinki--jarvi2014--buildings declares no season_label and no wet or dry distinction, so filling summer_wet, summer_dry, winter_wet and winter_dry with the one record is the only mapping its content supports. None of these records declares attaches_to, which in this database appears only on the profile and snow-profile records, so the SUEWS field each slot writes is fixed by the slot name alone and cannot be cross-checked against the component.
Own parameter valuesnot applicable
The composite declares no parameters block, so it overrides no component value.
Composition rationalenot applicable
The composite claims no composition source, and the repository records no published rationale for assembling these particular records into a Helsinki city centre. The sources of the components belong to their own evidence assessments, not to this review.
Place applicabilitysupported
The composite claims place helsinki. One component is a Helsinki row, OHM. Emissivity, water storage, drainage and snow_lim_patch are generic. Albedo declares place london and construction place gothenburg; both transfers remain forced by the available record set.
Representativenesscuration required
The composite is classed city. Construction and OHM declare city; emissivity, water storage, drainage and snow_lim_patch declare generic; and the Central London albedo declares site. The site-scale albedo is narrower than the city reach claimed by the composite. The OHM record is classed city but its name still identifies one measurement site, a question for that record's evidence assessment.
Slot and season mappingsupported
An assembly of existing records into slots; the composite produces no value of its own.
Completeness and uniquenesscuration required
All seven slots are filled, and the four ohm slots take one record, which is consistent with records/ohm/helsinki--jarvi2014--buildings declaring no season_label. The composite is not unique. archetypes/surfaces/bldgs/sweden--stone-houses-traditional-neighbourhood carries a uses block identical to this one, reference for reference, and a sweep of every archetype in the repository that carries a uses block finds these two to be the only exact pair among the fourteen buildings archetypes. They differ only in name, in place, helsinki against sweden, and in representativeness, city against regional. The same seven records are therefore published twice under two different place and scale claims, and a maintainer must decide whether both should exist and, if so, what distinguishes them.

Scientific note

On selection this composite is the strongest of the buildings family. One of its seven components is a Helsinki row, OHM; emissivity, water storage, drainage and snowpack_limit are generic; albedo and construction are the two place transfers. Those transfers are forced rather than careless: the database holds no Finnish buildings albedo record and no Finnish construction record, so a Central London albedo and a Gothenburg masonry perimeter block are the closest available stand-ins, and both are declared plainly in the components. Two components are city, four are generic and the London albedo is site evidence, so the site albedo is stretched beyond the city reach claimed by the composite. The four ohm slots correctly take one record because that record declares no season. What also needs a maintainer is identity. archetypes/surfaces/bldgs/sweden--stone-houses-traditional-neighbourhood holds an identical uses block, so the same seven records are published as both a Helsinki city typology and a Sweden-wide regional one, and either one of those two claims is wrong or the two entries must be reconciled. Two further points a later reader should not have to rediscover. records/ohm/helsinki--jarvi2014--buildings is a calculated mean of earlier roof records and therefore uses source unreferenced; its Järvi 2014 path remains a stable legacy identity rather than a source claim. The emissivity row declares source jarvi2011, while the snowpack-limit row declares source jarvi2014. And this city-scale composite is the buildings default for two region archetypes, western Europe and northern Europe, which stretches one Helsinki city centre across a continent. This review does not revisit any component value.

Model-ready fragment

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

alb:
  value: 0.12
  ref:
    ID: ward2016
    DOI: 10.1016/j.uclim.2016.05.001
    desc: london, site, land_cover
emis:
  value: 0.95
  ref:
    ID: jarvi2011
    DOI: 10.1016/j.jhydrol.2011.10.001
    desc: generic, generic, land_cover
storage_drain_params:
  store_min:
    value: 0.25
    ref:
      ID: jarvi2011
      DOI: 10.1016/j.jhydrol.2011.10.001
      desc: generic, generic, land_cover
  store_max:
    value: 0.25
    ref:
      ID: jarvi2011
      DOI: 10.1016/j.jhydrol.2011.10.001
      desc: generic, generic, land_cover
  drain_eq:
    value: 3
    ref:
      ID: jarvi2011
      DOI: 10.1016/j.jhydrol.2011.10.001
      desc: generic, generic, land_cover
  drain_coef_1:
    value: 10
    ref:
      ID: jarvi2011
      DOI: 10.1016/j.jhydrol.2011.10.001
      desc: generic, generic, land_cover
  drain_coef_2:
    value: 3
    ref:
      ID: jarvi2011
      DOI: 10.1016/j.jhydrol.2011.10.001
      desc: generic, generic, land_cover
wet_threshold:
  value: 0.25
  ref:
    ID: jarvi2011
    DOI: 10.1016/j.jhydrol.2011.10.001
    desc: generic, generic, land_cover
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: 0.19
      ref:
        ID: unreferenced
        DOI: null
        desc: helsinki, city, facet
    a2:
      value: 0.54
      ref:
        ID: unreferenced
        DOI: null
        desc: helsinki, city, facet
    a3:
      value: -15.125
      ref:
        ID: unreferenced
        DOI: null
        desc: helsinki, city, facet
  summer_dry:
    a1:
      value: 0.19
      ref:
        ID: unreferenced
        DOI: null
        desc: helsinki, city, facet
    a2:
      value: 0.54
      ref:
        ID: unreferenced
        DOI: null
        desc: helsinki, city, facet
    a3:
      value: -15.125
      ref:
        ID: unreferenced
        DOI: null
        desc: helsinki, city, facet
  winter_wet:
    a1:
      value: 0.19
      ref:
        ID: unreferenced
        DOI: null
        desc: helsinki, city, facet
    a2:
      value: 0.54
      ref:
        ID: unreferenced
        DOI: null
        desc: helsinki, city, facet
    a3:
      value: -15.125
      ref:
        ID: unreferenced
        DOI: null
        desc: helsinki, city, facet
  winter_dry:
    a1:
      value: 0.19
      ref:
        ID: unreferenced
        DOI: null
        desc: helsinki, city, facet
    a2:
      value: 0.54
      ref:
        ID: unreferenced
        DOI: null
        desc: helsinki, city, facet
    a3:
      value: -15.125
      ref:
        ID: unreferenced
        DOI: null
        desc: helsinki, city, facet

Composition review

Curation requiredReview procedure

Composite metadata

Scopecity
Targetland_cover.bldgs · docs
Origin“Helsinki” (verbatim legacy string)
Schema2026.5 · legacy row 20240014

Used by 3 entries

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