Changes between Version 3 and Version 4 of Documentation/Frac_Nobio

Timestamp:

2016-05-11T22:18:18+02:00 (8 years ago)

Author:

jpolcher

Comment:

--

Documentation/Frac_Nobio

@@ -9 +9 @@
 
 In the following we will go through each of the modules and detail where the frac_nobio is used and with which intention.
+
+== general comments ==
+
+the 2 variables frac_nobio and totfrac_nobio are passed to most subroutines and thus this is redundant information as in principle totfrac_nobio(:) = SUM(frac_nobio(:,jv), jv=1,nnobio) but nowhere is it verified that the this is indeed true.
+
+The addition of the second dimension to frac_nobio (nnobio) was not done correctly and is not fully implemented.
+
+Thus a first step in an effort to better handle the no-bio fraction would be to clean-up the code and only use frac_nobio and deal properly with its second dimension.
 
 == slowproc ==
@@ -22 +30 @@
 There is no code either to update all the prognostic variables of the model which depend on frac_nobio, does this matter ?
 
+== condveg ==
+
+In condveg the frac_nobio is used in the same way as veget in order to derive surface properties.
+
+condveg_snow : used frac_nobio to add the albedo of ice to the total albedo of the grid box. Should other nobio types be present the model will stop. So only frac_nobio for ice is foreseen for the moment.
+
+condveg_z0logz and condveg_z0cdrag : use the same logic as for the snow and compute the grid box average surface roughness taking into account the properties of the ice (z0_nobio).
+
 == diffuco ==
+
+Ensures that over the frac_nobio only sublimation can occur.
+
+diffuco_snow : in this subroutine vbetaveg1 will be modified assuming that the all frac_nobio types have sublimation.
+
 
 == enerbil ==