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Select waterlevel

Hi Support,


I'm tryging to make a panel that shows me the rise of the waterlevel in waterbody in a certain area after a Rainfall event. Is this possible? Can I use SELECTHEIGHT and WATERDEPTH_M?


I got this so far


SELECT_HEIGHT_WHERE_AREA_IS_something_AND_GRID_WITH_ATTRIBUTE_IS_neerslaggebeurtenis_AND_TIMEFRAME_IS_10

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Comments

  • Hi Ward,


    The Height clause can be used to get the height value of the terrain, but not the waterlevel for example. See also: https://support.tygron.com/wiki/Tygron_Query_Language#Grid_values

    For your panel you could use the SELECT_GRIDAVG_WHERE_AREA_IS_something_AND_GRID_WITH_ATTRIBUTE_IS_neerslaggebeurtenis to get the average value of the grid in your area. Would that work for your use case?

    Tygron support team

  • Hey Godelief,


    Thank you. In your sollution the AREA has to be the water, right?


    Could this work as well? The AREAISsomething is just used to select a specific area in my project. I can add TIMEFRAME_IS_x to get the waterlevel at a certain moment.


    SELECT_GRIDVOLUME_WHERE_AREA_IS_something_AND_GRID_WITH_ATTRIBUTE_IS_neerslaggebeurtenis


    and devide it by


    SELECT_LANDSIZE_WHERE_AREA_IS_something_AND_GRID_WITH_ATTRIBUTE_neerslaggebeurtenis_AND_TERRAIN_IS_3


    (Terrain 3 = water)


    What do you think? Would this work?

  • Hi Ward,


    Yes, the waterbody is then the area and the grid can be the Surface last value result type.


    I think the outcome of your second question will also be the Gridavg. Because the Gridvolume = the surface area (the landsize) * the average grid value (the gridavg). If you then divide this by the surface area (the landsize) you will get the gridavg.

    Tygron support team

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