SailNet Community - View Single Post - Best routing information
View Single Post
  #15  
Old 01-11-2012
jackdale's Avatar
jackdale jackdale is offline
Senior Member
 
Join Date: Dec 2008
Location: Calgary, AB, Canada
Posts: 8,857
Thanks: 26
Thanked 36 Times in 33 Posts
Rep Power: 6
jackdale will become famous soon enough
Quote:
Originally Posted by casey1999 View Post
Can someone explain how the Grib files are produced? I understand the files are all computer generated but what is the input? Do they use a satelite to get the input information? And what is the input information? If it is say Barometric pressure, how does a satelite measure barometric pressure?
Regards
Here is the technical answer - http://www.wmo.int/pages/prog/www/WD...-binary-2.html
__________________
__________________
ISPA Yachtmaster Offshore Instructor Evaluator
Sail Canada Advanced Cruising Instructor
IYT Yachtmaster Coastal Instructor
ASA 201, 203, 204, 205, 206, 214
As I sail, I praise God, and care not. (Luke Foxe)

Last edited by jackdale; 02-02-2012 at 10:28 PM.
Reply With Quote Share with Facebook