Hi Richard
t.rast.aggregate might be the function you are looking for. It has the
method 'max'.
For the cycling you might need to somehow loop over the data with
different starting days.
Best, Mira
On 06/04/17 11:09, RichardCooper wrote:
I have a time series of rainfall data, and for each year I want to calculate
the five-day period with maximum rainfall. So I would need to calculate the
sum of day1 to day5, then day2 to day6, then day3 to day7 etc for the whole
year, and then output the maximum grid cell 5-day values for each year into
a single raster.
To do this in t.rast.accumulate, I can see how to set a temporal cycle of 1
year (cycle= "12 months"), but not sure how to specify such a rolling sum
calculation of 5 days as described above. The default method is the 'mean'
as indicated in r.series.accumulation? I'm not too sure how the accumulation
is applied in the module.
Best regards,
Richard
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Dr. Mira Kattwinkel
Quantitative Landscape Ecology
Institute for Environmental Sciences
University of Koblenz-Landau
Fortstraße 7
76829 Landau
Germany
Phone: + 49 6341 280-31553
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