Originally Posted by Alexzs
ok, I could that. But I´m trying to find a more practical and almost automatic way for someone cruising an ocean, using a navigation software.
My intention is to capture the noaa images via radio
and the grib files via email
with iridium phone
What software are you receiving that sats with?
I use WxtoImg
. I project
the images to mercator in WxtoImg with a grid displayed and save the images. I usually make a morning and evening composite, or rather WxtoIMG does it for me.
this to OCPN using the Fax plugin. Once you have calibrated one image from WxtoImg it is saved and provided you don't change anything you reuse it.
Load the GRIB as usual and there you have it. It is a very powerful sanity check on the GRIB files. Along with a calibrated barometer, and calibrated TWS and TWD you can gain a good insight into the validity of the GRIB model output.
Let me know if you need more info. This has come up a couple of times recently so I'll try to put together a step by step guide and put it on my webpage sometime.