Names follow the SUEWS YAML specification; click one for its definition in the configuration reference.
a1 | 0.534 |
a2 | 0.21 |
a3 | -33.31 |
Where: Section 4.4, seasonal adjustment of OHM coefficients, p. 15
Where: Table 4, pre-adjustment water coefficients, p. 13
Where: SUEWS v2016a SUEWS_OHMCoefficients.txt, codes 60 and 601 and multiplier notes
The article supplies the calculation rationale; the versioned companion table supplies the exact result.
Where: Figure 8, seasonal-coefficient and constant-coefficient model results, p. 14
This is application and validation at London and Swindon, not the observation source for the triplet.
The matching database record preserves Ward's pre-adjustment code 60 input set.
| Name | supported The companion table identifies code 601 as code 60 multiplied for summer, with a2 unchanged. |
|---|---|
| Target | supported Ward et al. define these three values as coefficients in the OHM storage-heat equation. |
| Values | supported The exact code 601 triplet 0.534, 0.210, -33.31 matches the stored values. |
| Source | supported Ward et al. state the seasonal scaling and the companion v2016a table publishes the exact result. |
| Place | not applicable |
| Representativeness | not applicable |
| Applicable Scale | supported Equation 6 weights the coefficients for each surface type by its surface cover fraction, and Table 4 lists this input as Water, so the tuple describes the water land-cover class before neighborhood aggregation. |
| Method | supported The database adopts Ward's published output; Ward's authors produced it by scaling the Souch-derived water code rather than by a new observation or regression. |
| Identity | supported The code, surface grouping and Summer season label agree with the v2016a table. |
Ward et al. compile the pre-adjustment water coefficients from Souch et al. (1998), then calculate seasonal a1 and a3 values using Anandakumar-derived multipliers. Their London and Swindon runs validate/apply the coefficients but are not their observation input.
Paste under ohm_coefficients in a SUEWS YAML configuration; every value carries its citation.
a1:
value: 0.534
ref:
ID: ward2016
DOI: 10.1016/j.uclim.2016.05.001
desc: land_cover
a2:
value: 0.21
ref:
ID: ward2016
DOI: 10.1016/j.uclim.2016.05.001
desc: land_cover
a3:
value: -33.31
ref:
ID: ward2016
DOI: 10.1016/j.uclim.2016.05.001
desc: land_cover
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Review procedureohm_coefficients · docs