My MESH modelling approach
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First step:
‐ Model the basin using 1 GRU and 1 grid square no matter what the size or M d l th b i
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heterogeneity
‐ Optimize using DDS
‐ Why?
‐ Forces you to get the data and process it into the correct format (meteorological and Forces you to get the data and process it into the correct format (meteorological and
streamflow)
‐ Find out what processes are missing
‐ Get into the mindset of comparing measured and modelled data and not just streamflow also soil temperature, soil moisture, SWE
‐ Starts communication between modellers and process people
Next step
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‐Divide the basin in the GRUs
‐For instance in Scotty Creek the natural divisions were channel fens, bogs, and peatlands
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‐Again calibrate using DDS
‐Compare parameters, are they reasonable?
‐Continue to compare measured and modelled data
‐All this should be done as a collaborations between the modellers and process people
‐Is there still anything missing?
‐Should the basin be split into grid squares? How many?
‐Similar process for all research basins
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‐ Now should have a default (starting point) parameters sets for different land classes
‐ Keep up the communication
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