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soil emissivity \=1 incorrect #203

Open penguian opened 5 years ago

penguian commented 5 years ago

keyword_keepgit type_defect | by inh599

It appears that the science basis of CABLE's longwave radiation at the soil assumes an emissivity of 1 but we still permit emissivity \=1 in the emitted radiation.

For example

canopy%fns = rad%qssabs + rad%transdmet%fld + (1.0-rad%transd)C%EMLEAF & C%SBOLTZcanopy%tv*4 - C%EMSOILC%SBOLTZ* tss4

in cable_canopy

This is unphysical (the met%fld term should have an C%EMSOIL term multiplying it). Energy conservation would not be possible in ACCESS if soil emissivity were not 1.

A trivial fix is not possible as this needs to interface properly with the canopy radiation exchange.

Issue migrated from trac:203 at 2023-11-27 11:27:03 +1100

penguian commented 5 years ago

@jxs599@nci.org.au changed milestone from ` to6. Report`

penguian commented 1 year ago

@ccc561@nci.org.au set keywords to keepgit