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On this map you can virtually travel along with Pitufa. The markers link to our photo albums and some (by far not all) of our blog entries. Check out the extra layers available in above map (click on More… and on Winds…). The lon/lat coordinate grid (a feature I always missed in Google maps…) is switched on by default. Also feel free to play with our easy-to-use distance calculator.

For Cruisers

The above map may be helpful for route planning. View the monthly prevailing ocean winds (see the Winds… box above) averaged over ten years. Data was taken from COGOW [1] and originates from the ‘SeaWinds’ scatterometer onboard the ‘QuikSCAT’ satellite. Try their interactive wind atlas, too.

Note: Google updated their maps service around May 2015 and introduced severe bugs. One bug is that the wind arrows around the date line are no longer drawn properly (see here). Another bug is that the windroses in SVG format are no longer drawn at all (see here). It seems fixing those bugs does not have a very high priority at google labs, so we probably have to wait another couple of months before this wind atlas is fully functional again. Sorry. For the meantime I recommend downloading my wind atlas as KMZ file for use in Google Earth or to use our new, google-free version of the interactive wind atlas.

The arrows show the prevailing winds at a 2-by-2 degree lon/lat grid. The direction and length of the arrows correspond to the vectorially averaged monthly wind data over 10 years and over 2-by-2 degree areas (i.e., 32 COGOW data files were averaged for one arrow). The color of an arrow corresponds to the scalar averaged wind speed in knots. In addition, each arrow links to a wind rose in SVG format.

In addition to the prevailing wind arrows, a layer that shows the gale probability in 5-by-5 degree areas for each month as given in the U.S. Atlas of Pilot Charts [2] can be switched on in the map above.
The red numerals show the average percentage of ship reports in which winds of at least force 8 have been recorded for the considered month.

[1] Craig M. Risien and Dudley B. Chelton: A satellite-derived climatology of global ocean winds, Remote Sensing of Environment, Volume 105, Issue 3, December 2006, Pages 221-236.

[2] U.S. Defense Mapping Agency: Pub. 105, Atlas of Pilot Charts South Atlantic Ocean, Ed. 1995; Pub. 106, Atlas of Pilot Charts North Atlantic Ocean, Ed. 2002; Pub. 107, Atlas of Pilot Charts South Pacific Ocean, Ed. 1998; Pub. 108, Atlas of Pilot Charts North Pacific Ocean, Ed. 1994; Pub. 109, Atlas of Pilot Charts Indian Ocean, Ed. 2001

Disclaimer: These data are provided “as is.” In no event shall the providers be liable for any damages, including without limitation, damages resulting from lost profits or revenue, or any special, incidental, or consequential damages, arising out of the use of these data. While every effort has been made to ensure that these data are accurate and reliable, the accuracy and reliability of these data is not guaranteed nor warranted in any way and the providers disclaim liability of any kind whatsoever, including, without limitation, liability for quality, performance, merchantability and fitness for a particular purpose arising out of the use, or inability to use these data.

4 comments

  1. jayatma says:

    Hi,
    Your prevailing wind map is an excellent resource. Thanks for sharing it.
    I am wondering though if I am doing something incorrect as I would like to be able to see the really North Atlantic – above Faroe Islands and near Norway. Is there any information on that?
    Thanks
    Jayatma

    1. Christian says:

      Hi,
      You’re welcome. No, you don’t do anything wrong. Unfortunately, I did not download data for latitudes higher than 60 degrees N (and lower than 60 S). You may be interested in the wind-map browser at http://cioss.coas.oregonstate.edu/cogow/ (This is the site I downloaded the data files from).
      best regards,
      Christian

  2. Todd says:

    Christian, aloha from Hawaii! Awesome website and map you guys put together. Like your journey, our organization has also set out on a great voyage: hokulea.com.

    I was wondering if you’d be able to share more regarding your map and layers.

    We would like to create something similar with layer-toggling and custom data. I see you are using Geo Mashup in WordPress – is there anything else you’re using to get your particular mapping customization? Do you manage all your mapping from within WordPress?

    Thank you so much for your help! I can be reached at todd(at)pvshawaii.org

  3. amin says:

    hello
    Your prevailing wind map is an excellent resource. Thanks for sharing it.
    I am wondering though , i saw information about monsoon in Indian ocean . and help to my .

    Thanks

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