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README 4C - FORSEE - FORESt Ecosystems in a changing Environment

This file contains basic information on the open source distribution of
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the computer simulation forest model 4C. The model has been developed and is maintained
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at the Potsdam Institute for Climate Impact Research (PIK) in Potsdam, Germany,
see "opensource_PIK_approval".

All source code and documents provided are subject to copyright (c) by the 
Potsdam Institute for Climate Impact Research. All files are licenced under 
BSD 2-Clause License, see the LICENCE file for details. The 4C model is a 
collaborative work, see the AUTHOR file for details.

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- See http://www.pik-potsdam.de/4c/ for information about 4C and the manual
- For the model description see 4C_description.pdf in the directory descriptions
- The directory executables contains three executables with self-explanatory names
- The directory source_code contains the corresponding source codes in three subdirectories with self-explanatory names
- Additional information can be found in following directories:
    * manuals: about "how to start" and " generate exe"  
    * descriptions/additional: background information documents 
    * descriptions/Fact_sheets: short summary of the model in English and German
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    * source_code/additional: overview on variables with their names in the 4C description and the names in the source code
                              flow chart of the model 4C 
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    * test_data_sets: test the correct function mode of the model with complete sets of input data and control files 
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    * publications: relevant publications regarding the model 4C
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The source code is distributed via a git repository at: 
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https://gitlab.pik-potsdam.de/foresee/4C and is ready to use.
The code language is Fortran90. Since the model development is
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finished, there is no further development and no further support in model 
download, setup, development or application. No merge or other development 
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requests will be handeled. Therefore there are no code style recommendations or
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instructions on how to create source code amendments.
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