It's been a while... but for now Thank you Carl, I think that the gribmapper script works good for me. I just had to install the gl application but Martynas helped me with that and now it works ok!
By now I'm just having some "trouble" because I'd like to change the cycling interval from 6 to three hours. I have some clues from Xiao that it is possible , but we haven't discuss enough about cause he is travelling (as soon as he's back, we'll probably will touch this) anyway the idea was to post the things here in the forum, just in case this info could be useful for somebody else or if somebody has experience on this and can post it too. I'm trying to change this cause I'd like to have more than four points per each day just analyze and compare against Meteorological station over central Chile, jut to see how it works.
By the way, we've been discuss with my advisor about the convection schemes that Hirlam use. The thing is when they did some simulations on (1999) for a similar region, they shut down this schemes, cause any difference in temperature "unleash" convection, so they have problems with the convective precipitation. Any thoughts on this? Does the convection scheme have major improvements from that time to now? Maybe Laura Rontu, that did some modeling here in South America has some info about it.... anyway a description of those old runs you can find it here (page 36/115):
http://www.dim.uchile.cl/~lgallard/S_disp/HIRLAM-MATCH/tech_appendix_pdf.PDF
Best regards from the south!!!