I have MODIS ndvi data (MODIS_Grid_16 days NDVI) from the iberian peninsula (3 tiles), from February of 2000 to August of 2012 (really big data). I want to know how to deal with this kind of files.
My final goal is to extract the ndvi value to points with a associated date, i.e., I have sequencial dated points and I want to know the value of ndvi to that date point.)
How do I (automatically) merge the 3 tiles that compose the iberian peninsula for each 16-days (2000-2012)?
(I think if I use R to identify each filename and use gdal merge, it might work, but maybe there's a simplier way)
How do I create a time series from it and extract the values associated?