Changes between Version 5 and Version 6 of Documentation/UserGuide/ErrAct
- Timestamp:
- 2020-04-20T13:00:16+02:00 (4 years ago)
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Documentation/UserGuide/ErrAct
v5 v6 3 3 Author: S. Luyssaert [[BR]] 4 4 Last major revision: S. Luyssaert (2020/03/19) [[BR]] 5 5 Last check: D. Goll(2020/04/20) [[BR]] 6 6 7 7 == Objective == 8 Background of this item: ORCHIDEE has quite some build in error and consistency checking. Setting the correct level of these checks can help you to more quickly find the reason of a crash or a suspicious result. These setting should work for both the land-only and the land-atmosphere configurations.8 Background of this item: ORCHIDEE has build in error and consistency checking (i.e. mass conservation checks). Setting the correct level of these checks can help you to more quickly find the reason of a crash or a suspicious result. These setting should work for both the land-only and the land-atmosphere configurations. Currently, carbon and water mass checks are available which are described in the following. 9 9 10 10 == Carbon and nitrogen mass conservation == … … 26 26 Water budget closure is checked in hydrol.f90 for the related water stores (soil, snowpack and canopy) owing to the diagnostic variable ''TWBR'' (total water budget residu). This variable can be seen in the MONITORING tool when running with libIGCM. 27 27 28 It is calculated at each time step as the difference between the total water storage change and the net fluxes, and should be close to zero if water is conserved. The default unit in the output is kg/m2/s, and "good" values, when converted to kg/m2/d, should be less than 10^-8 kg/m2/d.28 It is calculated at each time step as the difference between the total water storage change and the net fluxes, and should be close to zero if water is conserved. '''Acceptable values are in the oder of 10-13 kg/m2/s''' (~ less than 10^-8 kg/m2/d). 29 29 30 30 Another useful check variable is ''undermcr'', which is defined per soiltile, and holds the number of orchidee time steps per output time step in which at least one soil layer has a moisture content mc below the residual value mcr. These situations are pathological, since they are close to negative moisture contents, which make no physical sense and cannot be tracted correctly by the code. … … 34 34 === routing.f90 === 35 35 36 Note that TWBR does not tell anything about water conservation in the routing scheme. Instead, specific water budget residu s are similarly calculated for the 4 main reservoirs of the routing scheme: ''wbr_stream'', ''wbr_fast'', ''wbr_slow'', and ''wbr_lake''. The standard output unit is also in kg/m2/s, and these values must also be as close to zero as possible.36 Note that TWBR does not tell anything about water conservation in the routing scheme. Instead, specific water budget residues are calculated for the 4 main reservoirs of the routing scheme: ''wbr_stream'', ''wbr_fast'', ''wbr_slow'', and ''wbr_lake''. The standard output unit is also in kg/m2/s, and these values must also be as close to zero as possible ('''DSG_review ADD RECOMMENDED VALUE for trunk revision XXXX'''). 37 37 38 38 In the trunk, the output level for these variables is 8, so they are not exported by default (SECHIBA_HISTLEVEL = 5), and you need change the the output level to get them. Explanations are [https://forge.ipsl.jussieu.fr/orchidee/wiki/Documentation/UserGuide/XIOSinConfig here].
