[GRASS-user] download MODIS data (MOD43B3)

[Markus Neteler]

On Tue, Oct 4, 2011 at 9:23 AM, Chemin, Yann (IWMI) <Y.Chemin at cgiar.org> wrote:
> It asks for pyMRT...

I would really need the error message since there is no trace of
a "pyMRT" error message in r.modis.*

Perhaps you mean pyModis? This is part of the module set.


> Does the GDAL-dev mailing list know about the geolocation error issue?

I was in contact with Gail Schmidt (MRT developer) from NASA about this
years ago (MODIS V003 and V004 when MODIS was still in ISIN, I posted
that to gdal-dev some years ago but didn't gain much attention ...
For ISIN (nowadays MODIS is in SIN), the source code is here:
mrt4.1/MRT/resample/calc_isin_shift.c

I am not sure about any potential projection shifts in SIN (MODIS V005),
but the source code of MRT is available if anyone wants to investigate.
Or run comparative test cases in different parts of the world....

For r.modis.* we decided to take the secure route and used MRT.

Markus