Names follow the SUEWS YAML specification; click one for its definition in the configuration reference.
emis | 0.91 |
Where: Table 2(a), Pavement column, emissivity row, p. 223
Publishes the exact SUEWS pavement emissivity epsilon_i = 0.91 and marks the cell with footnote f to Oke (1987).
Where: Table 4a, parameters used in SUEWS by surface, p. 1701
Seven surface columns: Bldg, Pav, Everg., Decid., Irr. veg, Grass, Water. Si 0.25, 0.48, 1.3, 0.3-0.8, blank, 1.9, 0; D0,i 10, 10, 0.013, 0.013, 10, 0.013; b 3, 3, 1.71, 1.71, 0.013, 1.71; alpha_i 0.15, 0.09a, 0.10, 0.16b, 0.19, 0.19b, 0.08b; epsilon_i 0.95, 0.91, 0.98, 0.98, 0.93, 0.93, 0.95; gi,max -, -, 7.4, 11.7, 40, 33.1; SWE,i max 190 for each of the six land surfaces and a dash for Water. Footnote a marks a value optimised using data from Helsinki, footnote b marks Vargo et al. (2013).
Where: Table 8.2, radiative properties of typical urban materials and areas, p. 281
Gives Roads — Asphalt emissivity 0.95. It is relevant upstream material evidence but does not publish the exact SUEWS pavement selection 0.91 found in Järvi et al. (2011).
| Name | supported Paved matches the record's land_cover.paved target. |
|---|---|
| Target | supported An emissivity is a land_cover.paved property. |
| Values | supported The record now stores emis 0.91, which is what Table 4a gives in its Pav column. It previously stored 0.95, the figure published for the Bldg column, and its paired record held the reverse, so the two surfaces carried each other's emissivity. Column identity was verified by character position in a layout-preserving extraction, not read off a flattened dump. issue #184 |
| Source | supported Järvi et al. (2011) are the earliest checked publication of the exact pavement value 0.91. Their footnote points to Oke (1987), whose urban-material table gives asphalt emissivity 0.95, not 0.91; Järvi et al. (2014) later repeat the exact 0.91. |
| Place | supported Both publications present material or model-class properties rather than a Helsinki determination, so generic is the supported evidence scope. The stable path and origin retain migration lineage. |
| Representativeness | supported The evidence supports a generic pavement parameter, not a site, city or regional empirical determination. |
| Applicable Scale | supported Järvi et al. tabulate the value for the Pavement surface class, so land_cover is the supported application scale. |
| Method | supported The database adopts an exact published model parameter without performing a new measurement or fit. |
| Identity | supported Järvi et al. publish separate pavement and building emissivity cells, so two records are correct. The pavement record now carries the exact 0.91 cell and original parameter source; the building sibling carries the corresponding 0.95 cell and its own original parameter source. |
Järvi et al. (2011) Table 2(a) is the earliest checked publication of the exact SUEWS pavement emissivity 0.91. Its Oke (1987) footnote is an upstream literature pointer, but Oke Table 8.2 gives asphalt emissivity 0.95 rather than 0.91 and therefore cannot be substituted as the exact parameter source. Järvi et al. (2014) later repeat 0.91 in the pavement column. The record now describes a generic land-cover literature parameter while preserving its stable path, origin and legacy identity. No value changes.
Paste under land_cover.paved in a SUEWS YAML configuration; every value carries its citation.
emis:
value: 0.91
ref:
ID: jarvi2011
DOI: 10.1016/j.jhydrol.2011.10.001
desc: generic, generic, land_cover
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.paved · docs