iwfm.iwfm_read_stream_reaches¶ iwfm.iwfm_read_stream_reaches(reach_file)[source]¶ Read group definitions of stream reaches. Thin wrapper around iwfm.calib.divshort2obs.read_reaches(), which is the canonical parser for the stream-groundwater group file format (e.g. stgwgroups.in). Parameters: reach_file (str) – Path to the reach groups file. Returns: reaches – One entry per group, [name, [reach_num, ...]]. Return type: list