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Paved · surfaces — City centrepaved composite

Surface bundlespavedzurichcity

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.

albedoPaved helsinki Awaiting sign-off
alb 0.09
emissivityPaved generic Awaiting sign-off
emis 0.91
water_storagePaved generic Awaiting sign-off
storage_drain_params.store_min 0.48 · storage_drain_params.store_max 0.48
drainagePaved generic Awaiting sign-off
storage_drain_params.drain_eq 3 · storage_drain_params.drain_coef_1 10 · storage_drain_params.drain_coef_2 3
constructionArchived internal construction fixture generic Awaiting sign-off
roof [{'material': 'records/materials/generic--lindberg-f2020--outer-roof-sample-run-ceramic-tiles-slate-shingles-concrete', 'thickness': 0.1}] · roof_insulation_layer 1 · wall [{'material': 'records/materials/generic--lindberg-f2020--outer-roof-sample-run-ceramic-tiles-slate-shingles-concrete', 'thickness': 0.1}]
snow_lim_patchPaved generic Awaiting sign-off
snowpack_limit 190
ohm · summer_wetImpervious (average). This is the average of Codes 801, 802, 901, 902, 903, 905, 906. [800] Awaiting sign-off
a1 0.719 · a2 0.194 · a3 -36.6
ohm · summer_dryImpervious (average). This is the average of Codes 801, 802, 901, 902, 903, 905, 906. [800] Awaiting sign-off
a1 0.719 · a2 0.194 · a3 -36.6
ohm · winter_wetImpervious (average). This is the average of Codes 801, 802, 901, 902, 903, 905, 906. [800] Awaiting sign-off
a1 0.719 · a2 0.194 · a3 -36.6
ohm · winter_dryImpervious (average). This is the average of Codes 801, 802, 901, 902, 903, 905, 906. [800] Awaiting sign-off
a1 0.719 · a2 0.194 · a3 -36.6

Composition provenance

Curation required

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

PavedSelected component

Fills the albedo slot. The record declares target land_cover.paved, name Paved, place helsinki, representativeness site, source jarvi2014 and method fitted, and carries alb.

PavedSelected component

Fills the emissivity slot. The stable Helsinki-path record declares target land_cover.paved, name Paved, place generic, representativeness generic, applicable_scale land_cover, source jarvi2011 and method literature, and carries emis. Its path and origin preserve later Helsinki application lineage.

Paved Selected component

Fills water_storage. The stable Helsinki-path record declares target land_cover.paved, name 'Paved ', 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 Pavement parameter and carries store_min and store_max under storage_drain_params.

PavedSelected component

Fills the drainage slot. The record declares target land_cover.paved, name Paved, place generic, representativeness generic and source jarvi2011, and carries drain_eq, drain_coef_1, drain_coef_2 and wet_threshold.

Archived internal construction fixtureSelected component

Fills the construction slot. The record declares target construction, name Archived internal construction fixture, place generic, representativeness generic, source unreferenced and method assumed, and carries roof and wall layer lists with roof_insulation_layer and wall_insulation_layer. scripts/export_record.py keeps the construction slot out of the surface fragment, so this reference contributes no exported value.

PavedSelected component

Fills the snow_lim_patch slot. The stable path and origin retain Helsinki migration lineage, while the record declares target land_cover.paved, name Paved, place generic, representativeness generic, applicable_scale land_cover, source jarvi2014 and method literature, and carries snowpack_limit.

Impervious (average). This is the average of Codes 801, 802, 901, 902, 903, 905, 906. [800]Selected component

Fills all four ohm positions, summer_wet, summer_dry, winter_wet and winter_dry. The record declares target ohm_coefficients, name 'Impervious (average). This is the average of Codes 801, 802, 901, 902, 903, 905, 906. [800]' and source unreferenced, carries a1, a2 and a3, and declares no place, no representativeness and no season_label.

Assessment findings

Composite identitysupported
The composite's name reads 'City centre', its place reads zurich and its origin reads Zurich, so read with those fields the label identifies a Zurich city-centre paved surface. The label names the typology rather than the provenance of its parts, none of which is Zurich's; that is dealt with under place.
Composite targetsupported
The composite declares target land_cover.paved. The albedo, emissivity, water_storage, drainage and snow_lim_patch slots each take a record declaring target land_cover.paved; the construction slot takes a record declaring target construction and the four ohm positions take records declaring target ohm_coefficients, which are the entry types those slots exist for. Surface records carry no attaches_to field, since attaches_to appears in this database only on the profile records under records/profiles/, so the slot check rests on the parameters each component carries: alb into albedo, emis into emissivity, store_min and store_max into water_storage, drain_eq, drain_coef_1, drain_coef_2 and wet_threshold into drainage, snowpack_limit into snow_lim_patch, and a1, a2 and a3 into each ohm position. The water_storage and drainage components both write into storage_drain_params and their keys do not overlap, so neither overrides the other. records/ohm/generic--unreferenced--paved declares no season_label, so filling all four season and wetness positions from it asserts no seasonal split the record itself denies.
Own parameter valuesnot applicable
The composite declares no parameters of its own, so it overrides no component value; every number in its exported fragment arrives from a component.
Composition rationalenot applicable
The composite declares no source field and the repository records no published rationale for this selection. Each component's own source belongs to that component's evidence assessment, not to this review.
Place applicabilitycuration required
The composite declares place zurich, which db/places.yml records as Zurich, Koppen Cfb, country switzerland. Not one of its seven components declares that place. Only the albedo slot takes a Helsinki record, which db/places.yml records as Koppen Dfb; emissivity, water_storage, snow_lim_patch and drainage take generic literature records; the construction record declares place generic and records/ohm/generic--unreferenced--paved declares no place. The database holds Zurich records elsewhere, under records/surfaces/evetr/, records/surfaces/grass/, records/surfaces/dectr/, records/surfaces/common/ and records/irrigation/, but none for land_cover.paved, so no Zurich paved value is being passed over. What makes this a decision rather than a forced gap is that the uses block is byte-identical to those of archetypes/surfaces/paved/helsinki--city-centre and archetypes/surfaces/paved/helsinki--kumpula: the entry publishes the same component set under a Zurich label, including one Helsinki city row. A maintainer has to decide whether that is a deliberate stand-in or an artefact of the migration.
Representativenesscuration required
The composite declares representativeness city. The fitted albedo is site-scoped; emissivity, water storage, snow limit, drainage and construction declare generic; and the OHM record declares no representativeness. The site-to-city transfer compounds the already documented Helsinki-to-Zurich place transfer and needs a composition-level rationale.
Slot and season mappingsupported
An assembly of seven existing records into eleven slot positions; the composite produces no value of its own.
Completeness and uniquenesssupported
The composite fills all seven slots the land_cover.paved archetypes use, so the assembly is complete, and it is the only Zurich paved typology in the database. Its uses block is byte-identical to those of archetypes/surfaces/paved/helsinki--city-centre, archetypes/surfaces/paved/helsinki--kumpula and archetypes/surfaces/paved/zurich--city-centre, the same seven records in the same eleven positions. Those two declare place helsinki while this declares place zurich, so the three are not interchangeable entries and the consequence of the sharing is recorded under place rather than counted twice here. records/surfaces/paved/se-england--ward2016--water-state carries state_limit and is referenced by no archetype, but no land_cover.paved archetype anywhere declares a water_state slot, so that is a target-wide design question rather than an omission in this entry.

Scientific note

archetypes/surfaces/paved/zurich--city-centre is a Zurich typology with no Zurich content. Its site-fitted albedo comes from Helsinki; emissivity, water storage and drainage are generic Järvi et al. (2011) literature records; snowpack limit is generic Järvi et al. (2014) literature evidence; its construction comes from an archived internal fixture and its four OHM positions from a generic row whose source field reads unreferenced. Scarcity explains part of that, since the database holds no paved surface record for Zurich at all, and its Zurich records sit under vegetation, soil and irrigation instead. Scarcity does not explain the shape of the result. The uses block is identical, record for record and position for position, to those of archetypes/surfaces/paved/helsinki--city-centre and archetypes/surfaces/paved/helsinki--kumpula, so what this entry publishes is the Helsinki paved set relabelled. Two readings fit and the files do not decide between them: the Helsinki-linked set may be a deliberate stand-in chosen because nothing closer exists, or the Zurich row may simply have inherited its neighbours' references during migration. The albedo additionally moves from a site fit to a city typology without a stated rationale. A maintainer should settle it, and should settle it together with the duplication between the two Helsinki entries, because the same seven components carry all three.

Model-ready fragment

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

alb:
  value: 0.09
  ref:
    ID: jarvi2014
    DOI: 10.5194/gmd-7-1691-2014
    desc: helsinki, site
emis:
  value: 0.91
  ref:
    ID: jarvi2011
    DOI: 10.1016/j.jhydrol.2011.10.001
    desc: generic, generic, land_cover
storage_drain_params:
  store_min:
    value: 0.48
    ref:
      ID: jarvi2011
      DOI: 10.1016/j.jhydrol.2011.10.001
      desc: generic, generic, land_cover
  store_max:
    value: 0.48
    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: 0.48
  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: 0.719
      ref:
        ID: unreferenced
        DOI: null
        desc: land_cover
    a2:
      value: 0.194
      ref:
        ID: unreferenced
        DOI: null
        desc: land_cover
    a3:
      value: -36.6
      ref:
        ID: unreferenced
        DOI: null
        desc: land_cover
  summer_dry:
    a1:
      value: 0.719
      ref:
        ID: unreferenced
        DOI: null
        desc: land_cover
    a2:
      value: 0.194
      ref:
        ID: unreferenced
        DOI: null
        desc: land_cover
    a3:
      value: -36.6
      ref:
        ID: unreferenced
        DOI: null
        desc: land_cover
  winter_wet:
    a1:
      value: 0.719
      ref:
        ID: unreferenced
        DOI: null
        desc: land_cover
    a2:
      value: 0.194
      ref:
        ID: unreferenced
        DOI: null
        desc: land_cover
    a3:
      value: -36.6
      ref:
        ID: unreferenced
        DOI: null
        desc: land_cover
  winter_dry:
    a1:
      value: 0.719
      ref:
        ID: unreferenced
        DOI: null
        desc: land_cover
    a2:
      value: 0.194
      ref:
        ID: unreferenced
        DOI: null
        desc: land_cover
    a3:
      value: -36.6
      ref:
        ID: unreferenced
        DOI: null
        desc: land_cover

Composition review

Curation requiredReview procedure

Composite metadata

Placezurich
Scopecity
Targetland_cover.paved · docs
Origin“Zurich” (verbatim legacy string)
Schema2026.5 · legacy row 20240018

Used by 3 entries

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