ORCHIDEE-LAK
ORCHIDEE-LAK is based on the version 4369 of the trunk. ORCHIDEE-LAK is the same as ORCHIDEE-MEB except that at the column 2, is assigned the energy and hydrology budgets of the lake. It was developed by Karine Petrus during the period 01.01.2017-31.08.2017.
Implementation
In this version, the multicolumn-version has been developed based on the same idea of the implementation in ORCHIDEE-DOFOCCO-MULTICOLUMN. This implementation is done in ORCHIDEE-MEB.
For calling the lake, the column 2 has been assigned. In the module lake.f90, the implementation of the surface temperature, different fluxes of the lake are done. The module lake.f90 is an adaptation of FLake (http://www.flake.igb-berlin.de/docs.shtml) to ORCHIDEE. For a better description: https://files.lsce.ipsl.fr/public.php?service=files&t=54fc8a656db1311e2d303ad0ffa0638e
Validation of the code
Comparison between the surface temperature of this version with FLake offline by using the same inputs. i.e. data from the Seine basins.
Run this version
In order to run the version, as well as for the version ORCHIDEE-MEB, compile it via gmake without_xios then execute it in a test case where a run.def file with the different parameters for the lake version are defined. The different parameters to assign a value are:
#Depth of the lake DEPTH_LAKE=20 #Extinction coefficient TURBIDITY_LAKE=0.1 FETCH=4000 #Height at which is measured the air temperature HEIGHT_TQ=2 #Height at which is measured the wind speed HEIGHT_U=2 #Initial mean temperature T_m=10 #Initial mixed-layer temperature T_wML=10 #Initial ice temperature T_ICE=0 #Initial bottom temperature T_bot=10 #Height of the thermocline h_ML=10 #Thickness of the ice layer h_ice=0 #Shape coefficient CTT=0.5 #Height and temperature of the bottom sediment layer H_B1=0 T_B1=4 #Time step dtlake=1800
Outputs
At this moment, the work done was only technical and the outputs are written in ASCII files for validation purpose. It gives the same outputs as FLake offline for one energy column.
Validation
Validation with the German lakes https://files.lsce.ipsl.fr/public.php?service=files&t=5f1311a9dee53eade008f3945db67534 Simulation done with the Seine lakes https://files.lsce.ipsl.fr/public.php?service=files&t=b08ff863e6b7e6404a4c9ab7fb22414e https://files.lsce.ipsl.fr/public.php?service=files&t=0852c8f6ce102b7a18b30b207d9f876b
