The settings directory must contain the following files (provided for the catchment case study):

1. A file called input_info.txt providing metadata for the NetCDF input file. It defines the name and units of the variables in the input file.

2. The file M_DECISIONS (called fuse_zDecisions_902.txt in the case studies) describes the different options available in the FUSE modeling framework. These modeling decisions are described in detail by Clark et al. (WRR, 2008), except decision 9 described in Henn et al. (WRR, 2015).

3. The file CONSTRAINTS (called fuse_zConstraints_snow.txt in the case studies) defines in particular the default parameter values and lower and upper parameter bounds. The list of parameters corresponds to those described in Clark et al. (WRR, 2008) and Henn et al. (WRR, 2015).

4. The file MOD_NUMERIX (called fuse_zNumerix.txt in the case studies) defines decisions regarding the numerical solution technique. Examples of the impact of these decisions are described by Clark and Kavetski (WRR 2010) and Kavetski and Clark (WRR 2010).