[webservices] units in quakeml/event ws

[Philip Crotwell]

ok, sounds good. I will code for the fdsn version and assume you all work
faster then I do. :)

thanks,
Philip

On Wednesday, March 13, 2013, Chad Trabant wrote:

>
> Hi Philip,
>
> This is a bug.  We will fix this in our soon-to-be-released FDSN event web
> service.  We will probably not change the current behavior of the
> production service as there are likely dependencies on how we are
> generating it now.
>
> Thanks for reporting it.  Somewhat surprising that it took this long to
> get noticed.
>
> Chad
>
> On Mar 13, 2013, at 11:41 AM, Philip Crotwell <crotwell at seis.sc.edu>
> wrote:
>
> Hi
>
> The quakeml spec (1.2) says that this depth field in an origin is in
> meters.
>
> depth Depth of hypocenter with respect to the nominal sea level given by
> the WGS84 geoid (Earth Gravitational Model, EGM96, Lemoine et al. 1998). Positive
> values indicate hypocenters below sea level. For shallow hypocenters, the depth
> value can be negative. Note: Other standards use different conventions for
> depth measurement. As an example, GSE2.0, defines depth with respect to the
> local surface. If event data is converted from other formats to QuakeML,
> depth values may have to be modified accordingly.
>
> Unit: m
>
> But when I query the event ws, the values that come back look like they
> are in kilometers, ie 33 instead of 33000 like in this:
>
> <origin publicID="smi:www.iris.edu/ws/event/query?originId=4908125"
> iris:contributor="NEIC PDE-M" iris:catalog="NEIC
> PDE"><time><value>1999-08-17T15:06:27.0700</value></time><creationInfo><author>NEIC</author></creationInfo><latitude><value>34.814</value></latitude><longitude><value>32.859</value></longitude><depth><value>33.0</value></depth></origin>
>
>
> QuakeML doesn't have a "units" field, so it can't just be labeled as "m"
> or "km".
>
> Is this a bug, or is the iris ws just choosing to not follow the spec?
>
> thanks
> Philip
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>
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