Point estimates of the following are required for manual data entry: Root Zone Drainage rate (ML) Area of application (ha) Average Annual Rainfall (mm) Distance fom River/Floodplain (m) Depth to Aquifer (m) Thickness of Aquitard (clay) (m) Aquifer diffusivity (or Specific Yield and Transmissivity) Aquifer salinity at the discharge point (mg/L) Floodplain attenuation factor* River connectivity factor* Assessment Reach# * For no floodplain attenuation factor = 1, for full river connectivity with aquifer factor = 1 # Assessment Reach is selected from a drop down list and is required for use of the BIGMOD Ready Reckoner ex MDBC

Output is delivered as pdf summary sheets for each "trade". Details of runs are preserved in clip files as described in the User Manual

SIMRAT has been extensively tested and compared with observed data and other more detailed model outputs. Independent peer review has been provided by Aquaterra Pty Ltd. Algorithms have been reviewed extensively by CSIRO Land and Water and non-ideal situations (where the model assumptions beging to break down) have been identified. Some workarounds are provided for non-ideal situations in SIMRAT-XL (see all workbooks titled XXX....).