Hello Emma,
2014-12-03 23:47 GMT-03:00 maning sambale emmanuel.samb...@gmail.com:
Dear Vero,
Thanks for the reply. But t.rast.aggregate does not do what I intend
to do. My rainrate is from a span of 20 days.
t.rast.aggregate produces (as expected) two rasters, one for each of
the 10day
Hi Maning,
i think that the combination of t.rast.aggreagte and the new
t.rast.algebra will help you here. Be aware that you will need the
latest grass7.1 trunk version for this.
First you need to compute the daily rainfall sum with
t.rast.aggregate. All 3h map layer that are temporally contained
Oh, I see... then, t.rast.accumulate is what you need. The default method
mean does the sum.
So mean is actually sum?
Maybe, something like this (please re-check the cycle and granularity
parameters, i didn't test)
t.rast.accumulate input=3hr_rainrate output=10day_acum_precip
Dear Soeren,
The temporal raster algebra module is very experimental, but i hope
that this will work.
Thanks will try this.
--
cheers,
maning
--
Freedom is still the most radical idea of all -N.Branden
wiki: http://esambale.wikispaces.com/
Hi,
I have 3hourly rainrate data for a given region in a GRASS temporal
database (strds).
I want to aggregate the data by summing all raster from the previous
10 days to calculate the accumulated rainfall.
The temporal modules have several tools:
t.rast.series
t.rast.accumulate
t.rast.aggregate
Hi Emmanuel,
Hi,
I have 3hourly rainrate data for a given region in a GRASS temporal
database (strds).
I want to aggregate the data by summing all raster from the previous
10 days to calculate the accumulated rainfall.
The temporal modules have several tools:
t.rast.series
Dear Vero,
Thanks for the reply. But t.rast.aggregate does not do what I intend
to do. My rainrate is from a span of 20 days.
t.rast.aggregate produces (as expected) two rasters, one for each of
the 10day accumulation. What I want for example is like a moving sum,
where for each day, it
