Names follow the SUEWS YAML specification; click one for its definition in the configuration reference.
emis | 0.93 |
Where: Table 2(a), Irrigated grass and Unirrigated grass, emissivity row, p. 223
Publishes the exact grass emissivity 0.93 in both columns and marks both cells with footnote f to Oke (1987).
Where: Table 1.1, Radiative properties of natural materials, p. 12
Gives grass an emissivity range of 0.90 to 0.95 and collectively cites Sellers (1965), List (1966), Paterson (1969), and Monteith (1973); it does not identify a source per cell.
Where: Table 2, Grass, emissivity row, p. 8
Repeats 0.93 and states that Järvi et al. (2011) supplied the UK-site emissivity values, rather than originating the value.
| Name | supported Järvi et al. (2011) assigns the same exact emissivity to its irrigated- and unirrigated-grass surface columns; Grass is the database label for the shared SUEWS surface class. |
|---|---|
| Target | supported Table 2 assigns the emissivity to both grass surface columns, matching the land_cover.grass target. |
| Values | supported Järvi et al. (2011) publishes the exact emissivity 0.93. Oke (1987), which those cells cite, gives a grass range of 0.90 to 0.95, so it supports the range but does not by itself identify the exact 0.93 selection. |
| Source | supported Järvi et al. (2011) is the earliest checked source that states the exact stored value. Oke (1987) is its stated upstream basis but publishes only a range; Ward et al. (2016) later repeats the exact value and points back to Järvi et al. (2011). |
| Place | supported Both sources present the value as a surface-type parameter or typical natural-material property, not as a measurement from SE England; generic is the supported active place scope. |
| Representativeness | supported The evidence is a general model parameter table backed by a typical-property range, not a regional survey. Generic is therefore the supported representativeness. |
| Method | supported The record adopts an exact value from the published model parameter table, so literature is the applicable method. |
| Identity | supported The stable SE England legacy path and origin preserve migration lineage, while active source and scope fields now describe the exact parameter publication and its generic applicability. |
Ward et al. (2016) is a later compilation for this value. Järvi et al. (2011) is the earliest checked publication that states the exact 0.93 model parameter. Its footnote leads to Oke (1987), whose original table supports a generic grass interval of 0.90 to 0.95 but not the exact 0.93 selection. The record therefore cites Järvi et al. (2011) as parameter source and records Oke (1987) as the upstream compilation. Its value, stable path and historical origin remain unchanged; active place and representativeness are generic.
Paste under land_cover.grass in a SUEWS YAML configuration; every value carries its citation.
emis:
value: 0.93
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