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    Posts made by NevP

    • How to interpret cloudbase map when data appears to be blocky or incomplete.

      How should I interpret the cloudbase map when the data appears to blocky, patchy and/or incomplete as shown in the example below using the ECMWF model.
      a69064fb-de78-4809-95c4-b111c0007c78-image.png
      This image is for central east coust of New Zealand's North Island. It is for approximately 6 days in the future. I am unsure how to interpret the very straight, defined edges. Particularly where the cloud base seemingly goes from 0m to unlimited almost instantanoeusly.
      In comparison, about 10 hours later the model looks like this;
      69320eb1-160f-4101-992f-2df8bd55551a-image.png
      The regions look much more organic with only a few patches that appear to be missing.

      Am I correct to interprete these square edges as missing/incomplete data?

      If this is true, how can I determine whether an uncoloured region in any particular instance on the map is because there is no cloud base or simply that there is no data available? This would seem to make interpreting the cloudbase very unreliable.

      Would it be possible to indicate areas of no-data with another shading to differentiate between this and where there is truely no cloud forecast.

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      NevP