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User manual for GUI-version 4 Input-Data file and start 4cwin.exe in a directory, that has the subfolders input and output file *.sim acts as model-control in which the used data and the control-flags are saved description of the soil profile: *.sop nitrogen availability: *.red climate *.cli inventory (population,crop) initialization: *.ini tree species parameter: species.par management-control: *.man Output-Data (unless explained in other documents) *.ctrl contains an overview of the simulation-control Two ,compressed’-files are automatically being applied with an opening information (*_B.cmp) and the performance information (*_E.cmp). The latter file includes average- and final value of some model variables *_error.log includes information about errors (absence of files or model problems) *_tree.ini1 and *_soil.ini1 include the inventory- and soil information at the end of the simulation, and can be used to start an other simulation Daily and annual output-dimensions are described in the respective chapter. Graphical User Interface (GUI) 1st window Point 1(Start simulation): Choice of a default *.sim file Point 2 (Edit control file): selection of a *.sim file and change of the simulation-control in a selected *.sim file Press Start 4C 2nd window only for information about the working directory, press ok 3rd window selection of the sim-file from the input-directory 4th window 1 – standard run has to be selected (other run-options can not yet be operated by menu) Select number of runs (press apply!) Leave thickness and time step parameter unchanged! Select change output id ( at more than 1 runs different names are suggested) Press ok Edit names and press ok 5th window (after set files selection) No changes necessary - only if, instead of the denoted data, another one should be selected (browse function) press ok 6th window (after set flags selection) No changes necessary – the adjusted flags are applicable by default (see also documentation of the sim-file) Statistical analysis (flag_stat = 1) is only possible, if a measured data file exists (see document about measurement value processing in 4C) These flags have to be modified (turn off with 0) for simulations with regeneration (flag_reg) und cultivation (flag_mg) Press ok 7th Fenster (after ok in 4th window ) change of output-data by selection of the particular menu item Start or end the simulation a) yearly output: pinus ponderosa and populus tremulus not yet in species.par sveg – not yet provided press ok to get back to 7th window b) daily output This edition can only be suggested for a short simulation of 1 – 5 years press ok to get back to 7th window c) cohort yearly The selected size and time is displayed for each cohort in the inventory press ok to get back to 7th window d) cohort daily ( don’t use ) Onward in 7th window Select summation output with different time resolution, it generates file *_sum.out* Save the changes of the settings in sim-file (could cause minor problems in sim-file but all flags are being saved correctly) Start simulation Back , change settings once again After the end of the simulation: Exit 4C Close DOS-window (return button)
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