Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

In order to display the information content of these 51 ensemble rank values, we use a simplified anomaly representation. For this, 5 main anomaly categories were defined by the 10th, 25th, 75th and 90th percentiles, representing 5 categories of larger anomalies as 'Extreme low', 'Low, 'Near normal', 'High' and 'Extreme high'. For some products (namely the two maps and the hydrographs), the 5 main categories are extended to a 7-category version by sub-dividing the 'Near normal' category into 'Bit low, 'Normal' and 'Bit high' with the 40th and 60th percentiles. In the forecasts, each of these 7 categories will have categories has a probability value, depending on how many of the 51 ensemble members they contain. 

...