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Order statistics across space+time together

Added by Michael Biggs almost 13 years ago

Hi,

I would like to compute some order statistics (median, extrema, quartiles) for my dataset, across the spatial domain and for various timescales. For example, I want the minimum value over the entire spatial domain over a whole month.

The cdo operator fldmin will compute the minimum of a field (e.g. Temperature) over the horizontal grid, at a particular time: I get a single value.
Alternatively, monmin gives a whole grid of output: the minimum of each grid point across the month.

For max and min, I can take the "min of mins" to get the whole overall minimum. But this does not work for the median or other percentiles. Is there any way to compute these values with cdo?

Thanks!