Names follow the SUEWS YAML specification; click one for its definition in the configuration reference.
alpha_bio_co2 | 0.0205 |
beta_bio_co2 | 16.3 |
resp_a | 1.08 Schmid 2000 |
resp_b | 0.064 Schmid 2000 |
min_res_bioco2 | 0.6 Järvi 2019 |
Where: Materials and methods, Study site description, p. 600
Describes a 64 ha moist-mixed grassland approximately 1.5 km west of Lethbridge city limits at 49 degrees 43 minutes N, 112 degrees 56 minutes W, with a flat prairie fetch.
Where: Eq. (5), rectangular-hyperbola GPP light response, p. 603
Defines alpha as apparent quantum yield and Amax as maximum GPP, fitted by nonlinear least squares separately for a 14-day peak-activity period in each year.
Where: Fig. 6, annual peak light-response fits for 1998, 1999 and 2000, p. 608
Publishes alpha 0.0254, 0.018 and 0.018 and Amax 27.5, 12.9 and 8.6. Their rounded arithmetic means equal the stored alpha 0.0205 and beta 16.3; the paper does not publish those means.
Applies to: parameters.resp_a, parameters.resp_b
Where: Eq. (5), ecosystem respiration versus soil temperature, p. 369
Publishes RE = 1.08 exp(0.064 Ts), the exact resp_a and resp_b mechanically reused in this grassland compilation even though Schmid's observations are from a hardwood-forest site.
Where: Sect. 2, Site and instrumentation, p. 358
Locates the source of the borrowed respiration fit at the Morgan-Monroe State Forest tower in an extensive secondary-successional broadleaf forest in south-central Indiana.
Applies to: parameters.min_res_bioco2
Where: Eq. (11), soil and vegetation respiration, p. 8366
Defines respiration as max(a_i exp(Tair b_i), 0.6) for each vegetated surface.
Where: Appendix B, Estimating Minimum Soil Respiration, p. 8379
Reports a 0.60 +/- 0.07 micromol m-2 s-1 minimum from 1,677 half-hour observations during 2009-2012 below -2 degrees C, measured by three automatic soil chambers in a Southern Finland boreal forest. Pumpanen et al. (2015) is cited for chamber methods, not for the 0.60 statistic.
Where: database.xlsx, Biogen CO2 sheet, row ID 30240009
Carries Temperate grassland, origin Lethbridge, Alberta, Canada, alpha 0.0205, beta 16.3, resp_a 1.08, resp_b 0.064, min_respi 0.6, three -999 inactive fields and Ref 90240046 in one row.
| Name | supported Flanagan et al. identify the ecosystem as a northern temperate grassland, and the migrated row preserves the concise name Temperate grassland. |
|---|---|
| Target | supported Flanagan fits grassland GPP light responses, and the migrated row explicitly classifies the tuple as Grass, represented by land_cover.grass. |
| Values | supported Flanagan publishes annual alpha values 0.0254, 0.018 and 0.018 and annual Amax values 27.5, 12.9 and 8.6. Their arithmetic means are 0.0204667 and 16.333, which round to stored 0.0205 and 16.3, although neither the article nor archive documents who chose that aggregation. Schmid Eq. (5) supplies resp_a 1.08 and resp_b 0.064; Järvi Eq. (11) and Appendix B supply the later minimum respiration floor 0.60. The migration row is the exact five-value compilation. |
| Source | supported The derived alpha and beta remain unreferenced rather than being falsely attributed to Flanagan, whose annual fits are recorded as calculation inputs. Parameter-level overrides cite Schmid for resp_a and resp_b and Järvi for min_res_bioco2; the workbook is compilation lineage. issue #371 |
| Place | supported The article locates the 64 ha study site approximately 1.5 km west of Lethbridge city limits at 49 degrees 43 minutes N and 112 degrees 56 minutes W. The resp_a and resp_b overrides record Schmid's Morgan-Monroe forest, and the minimum-respiration override records the Finnish chamber evidence, so neither borrowed subset inherits Lethbridge provenance. |
| Representativeness | supported The light-response inputs, borrowed respiration fit and winter floor each come from a single study site. Site is therefore the supported evidence reach for the envelope and all overrides. |
| Method | supported The record-level calculated method describes the rounded arithmetic means used for alpha and beta. The resp_a and resp_b overrides are fitted coefficients published by Schmid, while the minimum-respiration override is the measured chamber statistic published by Järvi. |
| Identity | supported Biogen CO2 row 30240009 preserves the exact name, origin, five active values, three -999 legacy sentinels and reference ID 90240046. The stable path and legacy_id retain that identity; the -999 theta, alpha_enh and beta_enh entries are unavailable legacy fields, not sourced scientific values. |
arithmetic_mean · alpha_bio_co2 = mean(0.0254, 0.018, 0.018); beta_bio_co2 = mean(27.5, 12.9, 8.6) · Calculate alpha_bio_co2 and beta_bio_co2 as separate unweighted means of the three annual Flanagan light-response fits, then round to the precision preserved by the database row.
The tuple is not one publication's result. The Flanagan light-response pair is an undocumented rounded aggregation of three annual fits, so the canonical source for those calculated leaves is unreferenced and Flanagan is retained only as input data. The respiration coefficients are borrowed from Schmid's hardwood forest, the 0.6 winter floor is later Finnish chamber evidence published by Järvi et al., and the pre-migration workbook is the exact compilation. Field-level source, method and place overrides now preserve those roles without changing any value or stable identity.
theta | -999 |
alpha_enh | -999 |
beta_enh | -999 |
Paste under land_cover.grass in a SUEWS YAML configuration; every value carries its citation.
alpha_bio_co2:
value: 0.0205
ref:
ID: unreferenced
DOI: null
desc: lethbridge, site
beta_bio_co2:
value: 16.3
ref:
ID: unreferenced
DOI: null
desc: lethbridge, site
resp_a:
value: 1.08
ref:
ID: schmid2000
DOI: 10.1016/S0168-1923(00)00140-4
desc: morgan-monroe-state-forest, site
resp_b:
value: 0.064
ref:
ID: schmid2000
DOI: 10.1016/S0168-1923(00)00140-4
desc: morgan-monroe-state-forest, site
min_res_bioco2:
value: 0.6
ref:
ID: jarvi2019
DOI: 10.1029/2018JD029576
desc: finland, site
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