There is actually no equivalency between dwc:decimalLatitude and geo:lat because geo:lat is specified to represent the latitude in the WGS84 spatial reference system and dwc:decimalLatitude has no such such restriction. <br>
<br><div class="gmail_quote">On Fri, Aug 6, 2010 at 10:08 AM, joel sachs <span dir="ltr"><<a href="mailto:jsachs@csee.umbc.edu">jsachs@csee.umbc.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">On Fri, 6 Aug 2010, Hilmar Lapp wrote:<br>
<br>
> Shouldn't the RDF for DwC link DwC:lat to geo:lat (using some subtype<br>
> or better yet equivalency relation)? And shouldn't hence Linked Data<br>
> browsers be able to use DwC:lat in the same way as geo:lat?<br>
><br>
<br>
</div>Yes. But no Linked Data browser I'm aware of applies<br>
owl:equivalentProperty assetions before rendering the data. (In fact, most<br>
do no reasoning at all.) I agree that, whatever our default display,<br>
it should include the appropriate mapping statements, either via an<br>
rdfs:seeAlso or similar link, or directly in the document.<br>
<font color="#888888"><br>
<br>
Joel.<br>
</font><div><div></div><div class="h5"><br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
> -hilmar<br>
><br>
> On Aug 6, 2010, at 11:01 AM, joel sachs wrote:<br>
><br>
>> All,<br>
>><br>
>> When representing observation records in RDF, there are advantages<br>
>> to using Dublin Core and Geo (<a href="http://www.w3.org/2003/01/geo/" target="_blank">http://www.w3.org/2003/01/geo/</a><br>
>> wgs84_pos#)<br>
>> namespaces where possible. For example, if we use DC:date, and<br>
>> geo:lat, geo:long, instead of DwC:eventDate, DwC:lat, and DwC:long,<br>
>> then Linked Data browsers can automatically map the records, plot<br>
>> them on a timeline, etc.<br>
>><br>
>> My question is: What are the disadvantages to doing this? (For<br>
>> example, is this going to break someone's DwC validator?)<br>
>><br>
>> Thanks -<br>
>> Joel.<br>
>><br>
><br>
> --<br>
> ===========================================================<br>
> : Hilmar Lapp -:- Durham, NC -:- <a href="http://informatics.nescent.org" target="_blank">informatics.nescent.org</a> :<br>
> ===========================================================<br>
><br>
><br>
><br>
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