Changes between Version 157 and Version 158 of Documentation/TrunkFunctionality4

Timestamp:

2024-12-01T11:09:24+01:00 (4 days ago)

Author:

luyssaert

Comment:

--

Documentation/TrunkFunctionality4

@@ -557 +557 @@
 If one is interested in running two identical simulations with the land-only and the land-atmosphere model, only the run.def needs to be replaced. If one is interested in running the model in the same mode (land-only or land-atmosphere) but change the model functionality, only orchidee.def needs to be changed. If one is interested in running the same mode and same model functionality but only wants to change the PFTs tho orchidee_pft.def file will have to be changed. This modularity is expected to enhance the transparency of the model configuration.
 
+=== Scale dependent settings ===
+Describes r8739. Forest management, wind storms and bark beetle outbreak are scale dependent. Clear cuts, for example, are common at the site-level but are unlikley at the pixel level of a 50 x 50 km2 pixel as that would imply a 2500 km2 clear cut. Set the conceptual scale for forest management to: "hectare", "europe", or "global". See constantes_mtc for more details on the difference between these cases.
+
 === Snags ===
 Describes r8446. Snags (= standing dead trees that decompose slowly because there is no ground contact) were introduced as a separate component of the litter pool. This functionality can be activated by setting '''OK_SNAGS''' to .TRUE. (the default is .FALSE.). This functionality still needs to be parameterized. Once parameterized the flag could be removed and the model should always account for the snags. r8433 still uses hard coded values of 0.5 in stomate_litter.f90. These values should be externalized and parameterized as a function of the disturbance, for example, drought mortality and insect outbreaks result in 100% snags whereas uprooting following a wind storm results in 0% snags.