Names follow the SUEWS YAML specification; click one for its definition in the configuration reference.
storage_drain_params.drain_eq | 2 UMEP-dev 2020 |
storage_drain_params.drain_coef_1 | 0.013 |
storage_drain_params.drain_coef_2 | 1.71 |
wet_threshold | 1.9 |
Applies to: parameters.storage_drain_params.drain_coef_1, parameters.storage_drain_params.drain_coef_2, parameters.wet_threshold
Where: Table 2(a), model parameter values by surface type, p. 223
Publishes Si 1.9 mm, D0,i 0.013 and b 1.71 in the Grass column. The same table explicitly labels site-specific initial states elsewhere, while these surface parameters carry no city label.
Where: Section 2.5, Equation 18, p. 224-225
States that unirrigated vegetation uses the exponential drainage equation. It establishes the scientific form but does not print the SUEWS interface selector.
Applies to: parameters.storage_drain_params.drain_eq
Where: DrainageCoef1 configuration, SUEWS_Veg.txt example values, p. 62
Explicitly pairs DrainageEq 2 and DrainageCoef1 0.013 with EveTr, DecTr and Grass (unirrigated). This evidence is scoped only to drain_eq; the exact physical coefficients remain sourced to Järvi et al. (2011).
Where: Table 4(a), parameters used in SUEWS by surface, p. 1701
The later compilation repeats grass Si 1.9, D0,i 0.013 and b 1.71. Its caption points unfootnoted parameters back to Järvi et al. (2011).
| Name | supported Järvi et al. label the source surface Grass, distinct from Irrigated grass. |
|---|---|
| Target | supported The table and drainage equation publish storage and drainage parameters for the grass SUEWS surface, matching land_cover.grass. |
| Values | supported Table 2(a) gives grass Si 1.9 mm, D0,i 0.013 and b 1.71, while Section 2.5 assigns unirrigated vegetation to Eq. 18's exponential form. The official v2020a documentation separately pairs DrainageEq 2 with 0.013 for grass (unirrigated). Every stored value is covered without treating a paper equation number as an interface selector. |
| Source | supported Järvi et al. (2011) directly publish the three physical parameters and drainage form. The source-only parameter override attributes the interface selector to official v2020a documentation. Järvi et al. (2014) is retained only as later compilation evidence. |
| Place | supported The original table presents a surface-type parameter rather than a Helsinki determination. Generic is therefore the supported evidence place; origin Helsinki preserves migration lineage. |
| Representativeness | supported The publication presents the tuple by surface type without a site-specific derivation, supporting generic rather than city representativeness. |
| Method | supported Literature accurately describes direct transcription of the published physical parameters, equation form and documented interface selector. |
| Identity | supported The original table distinguishes grass from irrigated grass and publishes different drainage forms and coefficients for them. The stable Helsinki path and origin retain migration identity. |
Järvi et al. (2011) publishes the three physical parameters and Eq. 18 directly; official SUEWS documentation establishes the separate selector mapping. The later 2014 table is compilation evidence, not the parameter origin. The source and scope metadata are corrected without changing any parameter, target, stable path, origin or legacy ID.
Paste under land_cover.grass in a SUEWS YAML configuration; every value carries its citation.
storage_drain_params:
drain_eq:
value: 2
ref:
ID: umep-dev2020a-docs
DOI: null
desc: generic, generic
drain_coef_1:
value: 0.013
ref:
ID: jarvi2011
DOI: 10.1016/j.jhydrol.2011.10.001
desc: generic, generic
drain_coef_2:
value: 1.71
ref:
ID: jarvi2011
DOI: 10.1016/j.jhydrol.2011.10.001
desc: generic, generic
wet_threshold:
value: 1.9
ref:
ID: jarvi2011
DOI: 10.1016/j.jhydrol.2011.10.001
desc: generic, generic
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 procedureland_cover.grass · docs