I've changed the subject to avoid hijacking the original thread.  As Manning 
suggests, this is something we the Philippines OSM community can take a lead in.

So far, I've not come up with a very large "subsea" list.  Over the weekend 
I'll try and dig up a list of what GNS uses and how I have mapped some of them 
to "new" OSM tags.

I have a strong background in marine earth science but zero feeling for what 
the yachting, boating and shipping community would like to see (sea?!) on maps 
so any comments on that very welcome.

Another tag I have started using is name=xxx, place=archipelago for a group of 
islands.  I can then tag islands with an extra is_in:archipelago=xxx tag.  This 
generally works well except when there is a small group of  islands inside a 
larger one.  This then needs an island to be tagged with something like 
is_in:archipelago=Visayas;xxx which is a bit awkward.


Mike

At 03:17 AM 27/02/2009, maning sambale wrote:

>What are the common tags used for marine features?  The map features
>seems too land-centric (for good reasons) but I think for archipelagic
>countries we need to map marine features as well.
>
>On Thu, Feb 26, 2009 at 9:08 PM, Mike Collinson <m...@ayeltd.biz> wrote:
>> An interesting link, I am looking at it now.
>>
>> FYI, I have started experimentally mapping coral reef edges visible on 
>> landsat with a subsea=coral_reef way tag.  I'd welcome anyone else to join 
>> in and share thoughts.
>>
>> I feel there should be a high-level "subsea=" tag to map point, lineal and 
>> area features that are always or normally underwater.  The other main value 
>> I've started using is subsea=channel, name=xxxx  for names of channels, 
>> sounds and straits gleaned from out-of-copyright maps.
>>
>> Mike
>>
>>
>> At 03:05 AM 26/02/2009, maning sambale wrote:
>>>Content-Transfer-Encoding: 8bit
>>>
>>>For some excellent "OC-OC" tips on island mapping look 
>>>here:http://www.evs-islands.com/
>>>Mr. Minton previously used only LANDSAT data for his highly accurateisland 
>>>maps.
>>>Some reefs are visible in LANDSAT.
>>>On Thu, Feb 26, 2009 at 9:57 AM, Ed Garcia <eppgar...@gmail.com> wrote:> 
>>>Eureka!!! it worked na.  And the newer version is so so much better pa!> 
>>>lalo na naman akong ginanahan!  I will help with the coast lines.  In fact> 
>>>even with Yahoo pa lang I did some coastline refining na especially in> 
>>>Anilao, Tingloy and Maricaban.  And now, my alma mater reef:  ligpo!>> :>) 
>>>ed>> On Thu, Feb 26, 2009 at 9:39 AM, maning sambale 
>>><emmanuel.samb...@gmail.com>> wrote:>>>> Can you try the latest josm 
>>>version?>>>> On Wed, Feb 25, 2009 at 10:03 PM, Ed Garcia 
>>><eppgar...@gmail.com> wrote:>> > Maning,>> >>> > Still can't get the 
>>>wmsplugin to load in my JOSM ... always comes up>> > with>> > the message 
>>>"could not load plugin wmsplugin.  delete from preferences?">> >>> > help!>> 
>>>> :>) ed>> >>> > On Wed, Feb 25, 2009 at 7:38 PM, maning sambale>> > 
>>><emmanuel.samb...@gmail.com>>> > wrote:>> >>>> >> whew! finally finished 
>>>masbate.>> >>>> >> Next will be Sibuyan!>> >>>> >> On Mon, Feb 23, 2009 at 
>>>8:47 PM, maning sambale>> >> <emmanuel.samb...@gmail.com> wrote:>> >> > 
>>>Here's what I did for Ticao Island:>> >> >>> >> >>> >> > 
>>>http://tile.openstreetmap.nl/coastlines.html?zoom=11&lat=12.51694&lon=123.72751&layers=B00T>>
>>> >> >>> >> > On Mon, Feb 23, 2009 at 8:44 PM, maning sambale>> >> > 
>>><emmanuel.samb...@gmail.com> wrote:>> >> >> Hi,>> >> >>>> >> >> An appeal 
>>>for editing this Month (February 2009).>> >> >>>> >> >> Coastline clean-up.  
>>>We have one of the most extensive coastlines in>> >> >> the world.  
>>>Currently OSM Philippines' coastline is a very rough>> >> >> import we made 
>>>a few years back using medium resolution SRTM data.>> >> >>  A>> >> >> lot 
>>>of very small islands are not included in the SRTM import.>> >> >>>> >> >> I 
>>>have started editing coastlines around Visayas (Biliran, Ticao and>> >> >> 
>>>Masbate).>> >> >>>> >> >> I request all Philippine mappers to adapt a few 
>>>island and give them>> >> >> some coastline love.  You can easily do this 
>>>with landsat imagery>> >> >> (available both on potlatch, josm, and 
>>>merkaator).  For very large>> >> €¨PŸ3ÿÿÿÿlZb
>>>Ï°- ÿÿÿÿlZb
>>> landmasses like Luzon or Mindanao please split coastlines into>> >> >> 
>>> manageable segments.>> >> >>>> >> >> Links to coastline editing:>> >> >>>> 
>>> >> >> http://wiki.openstreetmap.org/wiki/Tag:natural%3Dcoastline>> >> >> 
>>> http://tile.openstreetmap.nl/coastlines.html>> >> >>>> >> >> -->> >> >> 
>>> cheers,>> >> >> maning>> >> >> 
>>> ------------------------------------------------------>> >> >> "Freedom is 
>>> still the most radical idea of all" -N.Branden>> >> >> wiki: 
>>> http://esambale.wikispaces.com/>> >> >> blog: 
>>> http://epsg4253.wordpress.com/>> >> >> 
>>> ------------------------------------------------------>> >> >>>> >> >>> >> 
>>> >>> >> >>> >> > -->> >> > cheers,>> >> > maning>> >> > 
>>> ------------------------------------------------------>> >> > "Freedom is 
>>> still the most radical idea of all" -N.Branden>> >> > wiki: 
>>> http://esambale.wikispaces.com/>> >> > blog: 
>>> http://epsg4253.wordpress.com/>> >> > 
>>> ------------------------------------------------------>> >> >>> >>>> >>>> 
>>> >>>> >> -->> >> cheers,>> >> maning>> >> ------
>>>
>>>-- 
>>>cheers,maning------------------------------------------------------"Freedom 
>>>is still the most radical idea of all" -N.Brandenwiki: 
>>>http://esambale.wikispaces.com/blog: 
>>>http://epsg4253.wordpress.com/------------------------------------------------------
>>>_______________________________________________talk-ph mailing 
>>>listtalk...@openstreetmap.orghttp://lists.openstreetmap.org/listinfo/talk-ph
>>
>>
>>
>> _______________________________________________
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>>
>
>
>
>-- 
>cheers,
>maning
>------------------------------------------------------
>"Freedom is still the most radical idea of all" -N.Branden
>wiki: http://esambale.wikispaces.com/
>blog: http://epsg4253.wordpress.com/
>------------------------------------------------------



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