Names follow the SUEWS YAML specification; click one for its definition in the configuration reference.
a1 | 0.19 |
a2 | 0.54 |
a3 | -15.125 |
Supplies 0.17, 0.10 and -17 from the legacy Vancouver rooftop row.
Supplies 0.30, 0.96 and -24.
Supplies 0.26, 0.89 and -21.
Supplies 0.23, 0.87 and -24.
Supplies 0.23, 0.69 and -21.
Supplies 0.06, 0.28 and -3.
Supplies 0.15, 0.28 and -6.
Supplies 0.12, 0.25 and -5.
Where: Table 1(a), roof (tar and gravel), summer, p. 314
Publishes the code 713 coefficient triplet used as one input to the mean.
Where: Table 4, roof objective-hysteresis fits, p. 750
Publishes the code 701-707 coefficient triplets used as the other seven inputs.
Where: Supplementary Table S4, Helsinki buildings row, p. 6
Publishes the exact calculated output tuple used for Helsinki buildings without documenting its derivation.
| Name | supported The stable legacy label identifies the calculated tuple as the roof set used for SMEAR III; Järvi et al. (2017) publish it as the Helsinki buildings row. |
|---|---|
| Target | supported Every input and the calculated output are OHM coefficient triplets for roofs/buildings. |
| Values | supported The component-wise equal-weight mean is exactly 0.19, 0.54 and -15.125; Järvi et al. (2017) independently publish the same output tuple for Helsinki buildings. |
| Source | not applicable This is an internal arithmetic mean and therefore correctly uses source unreferenced. The input records carry their own parameter sources, while Järvi et al. (2017) is later compilation evidence. |
| Place | supported Järvi et al. publish the calculated tuple as the Helsinki buildings input. |
| Representativeness | supported The output is presented as the Helsinki input in a multi-city SUEWS analysis, supporting city application scope without treating the Vancouver inputs as Helsinki measurements. |
| Applicable Scale | supported The tuple is the equal-weight mean of eight roof-surface coefficient sets. Those inputs describe physical roof facets before any building-cover or neighborhood aggregation. issue #46 |
| Method | supported The tuple is reproduced exactly as the component-wise arithmetic mean of the eight recorded inputs. |
| Identity | supported The later Helsinki buildings row uniquely matches the stored triplet and its SMEAR III legacy use. |
arithmetic_mean · For each of a1, a2 and a3: (code 713 + code 701 + code 702 + code 703 + code 704 + code 705 + code 706 + code 707) / 8. · The sums are a1 = 1.52, a2 = 4.32 and a3 = -121; dividing each by eight gives 0.19, 0.54 and -15.125 exactly. Legacy code 708 is not an input; the historical selection rationale is undocumented, but the accepted eight-row reconstruction is unique and fully reproducible.
Leena Järvi confirmed that the SMEAR III roof values were selected from earlier-literature OHM coefficients in the legacy text table rather than fitted to Helsinki observations. Repository-wide subset reconstruction uniquely identifies codes 713 and 701-707 as the equal-weight inputs. Code 708 is excluded by the exact arithmetic; why it was not selected was not documented. This uncertainty concerns the historical selection rationale, not the reproducibility of the stored tuple.
Paste under ohm_coefficients in a SUEWS YAML configuration; every value carries its citation.
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
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 procedureohm_coefficients · docs