Implement input data revisions

[RainfallNZ]

Tim Cox has identified some revisions that need to be undertaken on the input data.
These were outlined in an email to Tim Kerr, on the 10th July 2020 at 16:41 with subject "Southland input revisions". The email refers to a file which is now in the "CASM" filder.

Hi Tim K.

Attached are some mark-ups of your CASM input worksheets, with edits generally described below. I have only worked through the 3 major basins thus far (Waiau, Oreti, and Matuara). The other two will be fairly trivial in comparison.

Let me know if any of these requested changes cause serious heartburn. I realize there is quite a lot here, but iterations were inevitable with the complexity of these basins. That being said, you've done a great job with your initial structuring of CASM inputs. Consider yourself the second-best CASM modeler in the country! For whatever that is worth...

• Yellow highlights mean we are deleting or changing. Green highlights mean "all good".
• I general, I have looked to aggregate where possible, for the sake of simplicity. This includes some tributary objects that aren't required (they can be lumped into sub-catchment diffuse objects) and many of the small estuary catchments that don't include an assessment point.
• River Network:
  • We don't need to represent lakes with explicit trib objects. Not really an appropriate representation anyway. Delete these, as highlighted.
  • Delete the estuary trib objects. Not needed.
  • A few small, lower-order tribs don't include assessment points and don't need to be represented with explicit trib objects. These can be deleted.
• Point Sources:
  • A few of these need to have their receiving stream, and km location, changed due to deleted trib objects (above).
• WQ Stations:
  • As above, a couple of these need revised "target stream" names and locations.
• Assessment Points:
  • A small number of sub-catchments required revised receiving streams, due to changes in river network.
  • We will aggregate all small estuary sub-catchments into single subcatchments, as commented in worksheet and colour-coded.
  • A few other miscellaneous items, as commented in worksheet cells.
• Diffuse Inputs:
  • Will need to be updated according to changes made above (e.g. revised node names, receiving streams, discharge locations, and land areas, as appropriate). There will be quite a few node deletions involved (due to aggregation).

Let me know if you have questions.

Thanks! Tim

Dr. Tim Cox Streamlined Environmental Mobile 022 386 0856 www.streamlined.co.nz

[RainfallNZ]

Found an error in the original draft with respect the point source from Southland District Council Wyndham. This site shares a river reach with the Fonterra plant, and was given the Fonterra loads. This has been corrected on the later version.

[RainfallNZ]

The majority of these issues have been resolved and committed on the 29th July 2020