[webservices] New ws-station revision released
Chad Trabant
chad at iris.washington.edu
Wed Jun 22 18:18:07 PDT 2011
Hi John,
Our network listing includes all registered FDSN network regardless whether we have SEED metadata or waveform data from those networks. Yes, zero stations means there are no data holdings for those networks. Similar network overview information is available from the MDA network listing: http://www.iris.edu/mda
Regarding your second question, we think this is expected behavior. Without stations and channels there is nothing to compare to the updated after date since we do not track updates to the simple network overview information (description, start & end year), even if we did it wouldn't be very meaningful in my opinion. Since nothing was updated nothing is returned for those networks. It's an interesting way to filter them out.
Chad
On Jun 22, 2011, at 2:20 PM, John D. West wrote:
> Further info: interestingly, if I use the updatedafter parameter (I used a date of 1801/01/01) I don't get any of the networks with zero station count.
>
> -- John
>
>
> On Wed, Jun 22, 2011 at 1:59 PM, John D. West <john.d.west at asu.edu> wrote:
> Looking at the Network level, I get 803 networks, of which 371 have zero in the TotalNumberStations field. Does this mean there are no data holdings for those 371 networks? Any insights as to why there are so many with no data?
>
> Thanks!
>
> -- John
>
>
>
> On Tue, Jun 21, 2011 at 4:29 PM, Yazan Suleiman <yazan at iris.washington.edu> wrote:
> Hello webservice users,
>
> The DMC has updated it's ws-station service: http://www.iris.edu/ws/station/
>
> For users parsing the StationXML returned by ws-station be aware that <NumberChannels> has been changed to <TotalNumberChannels>. New elements have been introduced:
>
> TotalNumberStations
> SelectedNumberStations
> TotalNumberChannels
> SelectedNumberChannels
>
>
> We have also fixed bugs related to virtual network result sets and timewindow for channel epochs.
>
> For users of the DMC's Fetch scripts no change is required.
>
> regards,
> Web services team
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>
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