CatchmentSIM Update & FMA Presentation
- Details
- Published: Wednesday, 03 June 2015 02:34
We are pleased to announce a new release of CatchmentSIM that brings Kriging and Natural Neighbour Interpolation to the Rainfall Analyser module and the Interpolate Grid from Points tool. These methods offer improved interpolation for rainfall observations and most types of point data. Click the Read More link to see some examples of how significantly rainfall isohyets can vary based on the interpolation method.
We are also happy to release our paper and presentation from this year's Floodplain Management Authorities conference in Brisbane. The paper discusses how we tackled the problem of applying freeboards in areas of overland flooding. This is an important area of research considering the increasing focus on flood risk in urban catchments. Some further information is included in the Read More link. |
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CatchmentSIM UpdateYou may be surprised how much difference the interpolation method can make when interpolating data with relatively sparse observations (such as rainfall). The images below show the difference between the rainfall isohyets generated for a single timestep for a rainfall event using Inverse Distance, Kriging and Natural Neighbour interpolation. These differences flow through to your average weighted rainfall depth hyetographs for each subcatchment and will improve your spatial rainfall representation in your hydrologic model when modelling observed rainfall events. |
2015 FMA PaperOur FMA paper included development of a tool to derive vector flow paths from hydraulic model results (including TUFLOW). These allow linking of disconnected puddles after flood results are filtered and provide the basis for better interpolation of Flood Planning Levels and Areas. |