Changes between Version 81 and Version 82 of DevelopmentActivities/ORCHIDEE-CNP

Timestamp:

2016-03-08T17:22:46+01:00 (8 years ago)

Author:

dgoll

Comment:

--

DevelopmentActivities/ORCHIDEE-CNP

@@ -22 +22 @@
 == 2. Technical notes B: the analytical spinup of the biogeochemical cycles ==
 
-=== 2.1 avoid that immobilisation demand exceeds mineral nutrient supply ===
+=== FAILS 2.1A avoid that immobilisation demand exceeds mineral nutrient supply ===
 Directly, after an analytic spinup cycle the immobilisation demand can exceed the mineral nutrient supply (soil_n_min or soil_p_min). 
 In such a case, we have to add artificially the needed amount of nutrients to the supply. The flag ok_spunup controls that only in the timestep after the analytical solution is derived nutrients can be added.
 
+=== 2.1B avoid that immobilisation demand exceeds mineral nutrient supply ===
+During the an analytic spinup cycle the immobilisation demand can exceed the mineral nutrient supply (soil_n_min or soil_p_min).
+In such a case, we have to add artificially the needed amount of nutrients to the supply. Every time it is needed during spinup.
 === 2.2 prescribed N inputs from BNF during the spinup ===
 The biological fixation of N2 from the atmosphere is computed as a function of NPP and plant C:N:P stoichiometry. During the spinup large amounts of organic matter accumulate which is connected with a high immobilisation flux. We thus must ensure that the N inputs are rather high and constant in time. Therefore we read BNF rates in from a file rather than computing them dynamically.