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Hello web service list,<br>
<br>
Sorry for the misdirected mail previously, a glimpse of internal DMC
coordination. But it does afford me an opportunity to remind you of a
big user-level change and explain some internal workings at the DMC.<br>
<br>
The big change coming to the fdsnws-station service next week (assuming
we get through testing by then) is the representation for empty location
IDs. We are making this change to comply with FDSN standards.<br>
<br>
To illustrate, we currently represent empty location IDs as a string of
two spaces, e.g:<br>
in XML: <span style="font-weight: bold;"><Channel locationCode=" "
...></span><br>
in channel-level text<span style="font-weight: bold;">: IU|ANMO|
|LHZ|...</span><span><meta http-equiv="content-type" content="text/html;
charset=ISO-8859-1"></span><br>
<span><meta http-equiv="content-type" content="text/html;
charset=ISO-8859-1"> <br>
</span>After the change those location IDs will collapse to empty
strings, e.g:<br>
<span>in XML: <span style="font-weight: bold;"><Channel
locationCode="" ...></span><br>
in channel-level text<span style="font-weight: bold;">: IU|ANMO||LHZ|...</span><span></span>
</span><br>
<br>
Another big change more internal to the DMC is a transition from Oracle
to a Postgres database backend. We have been working hard to make this
transition as seamless as possible for users of the DMC. In regards to
the fdsnws-station service, one result of this transition will be an
equivalent but slightly different flavor of number representation. For
example, a zero may be represented now as "0.0" and later as simply
"0". The metadata content will be equivalent and we expect the vast
majority of users to not notice the difference.<br>
<br>
Be on the lookout for these changes coming soon.<br>
<br>
Chad<br>
<br>
<blockquote style="border: 0px none;"
cite="mid:54C83A0C.9080101@iris.washington.edu" type="cite">
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<a moz-do-not-send="true" href="mailto:chad@iris.washington.edu"
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!important;">Chad Trabant</a></div> <div
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<font color="#9FA2A5"><span style="padding-left:6px">January 27, 2015
at 5:23 PM</span></font></div></div></div>
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<br>
Hello everyone,<br>
<br>
<span style="font-weight: bold;">On February 4th (Wednesday next week)</span>
we are planning a major update to the fdsnw-station service including
these changes (and many smaller bug fixes):<br>
<br>
* Move to PPAS<br>
* Change empty location IDs from two-space strings to empty strings (for
FDSN conformance)<br>
</div>
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