Re: [GRASS-user] detrending time series maps

2023-12-22 Thread Veronica Andreo via grass-user
Hello Ivan, AFAIU you could use the slope and offset maps from t.rast.series within t.rast.algebra to detrend the values of the maps within the strds, something like "detrended_strds = trend_strds - (trend_strds*map(slope) + map(offset))". Others suggest, to detrend by subtracting the previous

[GRASS-user] detrending time series maps

2023-12-22 Thread Ivan Marchesini via grass-user
Dear colleagues I would like to the advantage of the t.* modules for detrending a strd. In the strd I have earth observation data irregularly sampled (2 or 3 times per month), in the period November-February, for 7 years. They are not equally spaced (i.e gaps have different duration) A