Apple Mac and Linux GRIB usage

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To help owners of Apple Mac or Linux systems to handle GRIB files.


Apple Mac and Linux users

This page is written on the basis of information from other people. I cannot vouch for its accuracy.

The UGrib software only used to works on Windows. A contact, Alan Wilson, says that Saildocs works fine on Mac simply by sending grib files by email as usual: the standard Mac email program (Mail) has no problems receiving the files (neither does Thunderbird, on Windows).

To view a grib file on Mac, use PolarView: download (free) from www.polarnavy.com. Installing is easy & quick; it has no problems ith grib files from Saildocs. For Apple Mac and OS X users, there is a navigation package called GPSnavX. That has been upgraded to display pressure and wind from GRIB files. It can request a GRIB file automatically covering whichever chart you have open (though don't try this with a world chart open as you will get a huge GRIB file). This will generate an email back to you which you can then be saved and opened for display. It has been reported to work well.

Theyr.com provide a free GRIB viewer which, they say, works with Mac and Windows.

Alastair Duncan, a CA friend and an Apple Mac user says that he uses the dedicated Mac navigation system which also is able to pull down the weather GRIB files through Saildocs. The programme is MacENC and can be found at http://www.macenc.com/

Good in Windows and with versions for Linux and MacOS is zygrib - http://www.zygrib.org. See my zyGrib page

The only other Linux GRIB viewer that I have been told about is skyeye which costs $79. http://www.xaxero.com/gribplot.htm. . Further advice would be welcome.


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