Names follow the SUEWS YAML specification; click one for its definition in the configuration reference.
a1 | 0.336 |
a2 | 0.313 |
a3 | -31.4 |
Where: Table 4, Greenspace/Open rows corresponding to legacy codes 20, 30, 50, 51, 52, 53 and 60, p. 932
Lists the seven OHM input triplets; the V2016a SUEWS coefficient table identifies their component-wise mean as legacy code 200.
Current atomic record for legacy code 20.
Current atomic record for legacy code 30.
Current atomic record for legacy code 50.
Current atomic record for legacy code 60.
| Name | supported The name preserves legacy code 200 and states the seven component surface codes exactly. |
|---|---|
| Target | supported Every input is a published OHM coefficient triplet and the result remains an OHM coefficient set. |
| Values | supported The component-wise means are 0.335714..., 0.312857... and -31.414285..., which round to the stored 0.336, 0.313 and -31.4. |
| Source | supported Grimmond and Oke publish the seven inputs but not their code-200 mean; source unreferenced avoids attributing the database calculation to the paper while retaining the input-data locator. |
| Place | not applicable |
| Representativeness | not applicable |
| Applicable Scale | unresolved The code-200 mean crosses forest, grass, bare-soil and water inputs, and no source defines that result as one controlled scale term. A legacy coefficient-design artifact or maintainer confirmation is required. issue #46 |
| Method | supported The legacy V2016a coefficient table explicitly defines code 200 as the arithmetic mean of codes 20, 30, 50, 51, 52, 53 and 60; four current records and three external table rows represent every input. issue #280 |
| Identity | supported The stored tuple and descriptive name match legacy code 200 unambiguously. |
arithmetic_mean · round_componentwise((code20 + code30 + code50 + code51 + code52 + code53 + code60) / 7, [3, 3, 1] decimal places)
Grimmond and Oke publish the seven component triplets, while legacy SUEWS code 200 is their internally calculated, component-wise rounded mean. Current atomic records preserve codes 20, 30, 50 and 60; external table inputs preserve codes 51-53. No parameter value has changed.
Paste under ohm_coefficients in a SUEWS YAML configuration; every value carries its citation.
a1:
value: 0.336
ref:
ID: unreferenced
DOI: null
desc: null
a2:
value: 0.313
ref:
ID: unreferenced
DOI: null
desc: null
a3:
value: -31.4
ref:
ID: unreferenced
DOI: null
desc: null
ohm_coefficients · docs