From chad at iris.washington.edu  Tue Oct 14 19:46:23 2014
From: chad at iris.washington.edu (Chad Trabant)
Date: Tue, 14 Oct 2014 19:46:23 -0700
Subject: [webservices] Changing numbering for Pole and Zero entries in
	channel response
Message-ID: <A9151B6A-CCB4-4A7D-B28B-3F8177AB1762@iris.washington.edu>


Hello web service users,

In the next release of our fdsnws-station service the Pole and Zero child elements to the PolesZeros element of a response will be numbered as two groups instead of as a single group.  This numbering will match the traditional SEED usage, often exposed in SEED RESP.  We expect to release a new version either later this week or next week.

As an example, in the current version of the service if there are 11 poles and 6 zeros the Pole and Zero elements are numbered from 0 through 16.  In the next release the Poles will be numbered from 0 through 10 and the Zeros will be numbered from 0 through 5.

Examples of the StationXML for before and after the change are below.

For most users and usage this change will have very little or no effect.  If you believe this change will effect your processing please let us know.

regards,
IRIS DMC



Example of current PolesZeros construction:
-------------
<PolesZeros>
  <InputUnits>
    <Name>M/S</Name>
    <Description>velocity in meters per second</Description>
  </InputUnits>
  <OutputUnits>
    <Name>V</Name>
    <Description>emf in volts</Description>
  </OutputUnits>
  <PzTransferFunctionType>LAPLACE (RADIANS/SECOND)</PzTransferFunctionType>
  <NormalizationFactor>348462000000000000</NormalizationFactor>
  <NormalizationFrequency>.2</NormalizationFrequency>
  <Zero number="0">
    <Real>0</Real>
    <Imaginary>0</Imaginary>
  </Zero>
  <Zero number="1">
    <Real>0</Real>
    <Imaginary>0</Imaginary>
  </Zero>
  <Zero number="2">
    <Real>-463.1</Real>
    <Imaginary>430.5</Imaginary>
  </Zero>
  <Zero number="3">
    <Real>-463.1</Real>
    <Imaginary>-430.5</Imaginary>
  </Zero>
  <Zero number="4">
    <Real>-176.6</Real>
    <Imaginary>0</Imaginary>
  </Zero>
  <Zero number="5">
    <Real>-15.15</Real>
    <Imaginary>0</Imaginary>
  </Zero>
  <Pole number="6">
    <Real>-13300</Real>
    <Imaginary>0</Imaginary>
  </Pole>
  <Pole number="7">
    <Real>-10530</Real>
    <Imaginary>10050</Imaginary>
  </Pole>
  <Pole number="8">
    <Real>-10530</Real>
    <Imaginary>-10050</Imaginary>
  </Pole>
  <Pole number="9">
    <Real>-520.3</Real>
    <Imaginary>0</Imaginary>
  </Pole>
  <Pole number="10">
    <Real>-374.8</Real>
    <Imaginary>0</Imaginary>
  </Pole>
  <Pole number="11">
    <Real>-97.34</Real>
    <Imaginary>400.7</Imaginary>
  </Pole>
  <Pole number="12">
    <Real>-97.34</Real>
    <Imaginary>-400.7</Imaginary>
  </Pole>
  <Pole number="13">
    <Real>-15.64</Real>
    <Imaginary>0</Imaginary>
  </Pole>
  <Pole number="14">
    <Real>-.037</Real>
    <Imaginary>.037</Imaginary>
  </Pole>
  <Pole number="15">
    <Real>-.037</Real>
    <Imaginary>-.037</Imaginary>
  </Pole>
  <Pole number="16">
    <Real>-255.1</Real>
    <Imaginary>0</Imaginary>
  </Pole>
</PolesZeros>
...
-------------


Example of new PolesZeros construction with independent Pole and Zero numbering:
-------------
<PolesZeros>
  <InputUnits>
    <Name>M/S</Name>
    <Description>velocity in meters per second</Description>
  </InputUnits>
  <OutputUnits>
    <Name>V</Name>
    <Description>emf in volts</Description>
  </OutputUnits>
  <PzTransferFunctionType>LAPLACE (RADIANS/SECOND)</PzTransferFunctionType>
  <NormalizationFactor>348462000000000000</NormalizationFactor>
  <NormalizationFrequency>.2</NormalizationFrequency>
  <Zero number="0">
    <Real plusError="0.0" minusError="0.0">0</Real>
    <Imaginary plusError="0.0" minusError="0.0">0</Imaginary>
  </Zero>
  <Zero number="1">
    <Real plusError="0.0" minusError="0.0">0</Real>
    <Imaginary plusError="0.0" minusError="0.0">0</Imaginary>
  </Zero>
  <Zero number="2">
    <Real plusError="0.0" minusError="0.0">-463.1</Real>
    <Imaginary plusError="0.0" minusError="0.0">430.5</Imaginary>
  </Zero>
  <Zero number="3">
    <Real plusError="0.0" minusError="0.0">-463.1</Real>
    <Imaginary plusError="0.0" minusError="0.0">-430.5</Imaginary>
  </Zero>
  <Zero number="4">
    <Real plusError="0.0" minusError="0.0">-176.6</Real>
    <Imaginary plusError="0.0" minusError="0.0">0</Imaginary>
  </Zero>
  <Zero number="5">
    <Real plusError="0.0" minusError="0.0">-15.15</Real>
    <Imaginary plusError="0.0" minusError="0.0">0</Imaginary>
  </Zero>
  <Pole number="0">
    <Real plusError="0" minusError="0">-13300</Real>
    <Imaginary plusError="0" minusError="0">0</Imaginary>
  </Pole>
  <Pole number="1">
    <Real plusError="0" minusError="0">-10530</Real>
    <Imaginary plusError="0" minusError="0">10050</Imaginary>
  </Pole>
  <Pole number="2">
    <Real plusError="0" minusError="0">-10530</Real>
    <Imaginary plusError="0" minusError="0">-10050</Imaginary>
  </Pole>
  <Pole number="3">
    <Real plusError="0" minusError="0">-520.3</Real>
    <Imaginary plusError="0" minusError="0">0</Imaginary>
  </Pole>
  <Pole number="4">
    <Real plusError="0" minusError="0">-374.8</Real>
    <Imaginary plusError="0" minusError="0">0</Imaginary>
  </Pole>
  <Pole number="5">
    <Real plusError="0" minusError="0">-97.34</Real>
    <Imaginary plusError="0" minusError="0">400.7</Imaginary>
  </Pole>
  <Pole number="6">
    <Real plusError="0" minusError="0">-97.34</Real>
    <Imaginary plusError="0" minusError="0">-400.7</Imaginary>
  </Pole>
  <Pole number="7">
    <Real plusError="0" minusError="0">-15.64</Real>
    <Imaginary plusError="0" minusError="0">0</Imaginary>
  </Pole>
  <Pole number="8">
    <Real plusError="0" minusError="0">-.037</Real>
    <Imaginary plusError="0" minusError="0">.037</Imaginary>
  </Pole>
  <Pole number="9">
    <Real plusError="0" minusError="0">-.037</Real>
    <Imaginary plusError="0" minusError="0">-.037</Imaginary>
  </Pole>
  <Pole number="10">
    <Real plusError="0" minusError="0">-255.1</Real>
    <Imaginary plusError="0" minusError="0">0</Imaginary>
  </Pole>
</PolesZeros>
...
-------------



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From rtweekly at iris.washington.edu  Thu Oct 23 15:16:55 2014
From: rtweekly at iris.washington.edu (Robert Weekly)
Date: Thu, 23 Oct 2014 15:16:55 -0700
Subject: [webservices] fdsnws-station service updated to version 1.1.5
Message-ID: <BBADDE08-6CD5-49D9-8A52-22211E429C65@iris.washington.edu>

Hello WS users,

The DMC has updated the fdsnws-station service to version 1.1.5
http://service.iris.edu/fdsnws/station/1/version

Changes include:

New feature: the service now supports an exclusion operator that removes an element from a selected set of networks, stations, channels, or locations.  Exclusions are specified using a minus '-' in front of the element you would like to exclude.  Please visit the help page for full details and examples:http://service.iris.edu/fdsnws/station/docs/1/help/.  

- In addition, the service now has additional filters to validate input values like network, station, channel and location codes.  When invalid values are provided, a 400 error will be delivered to the user.

- Fixed a bug where the ?endDate? of a network epoch was incorrectly set.  At the DMC the current metadata only includes an end year for networks, the full date is implicitly known to be the end of the end year; previously the service returned the end year as the 12th of December, this has now been fixed to the 31st of December.

The following describes changes to the StationXML content in this release:

- The instrument response now includes separate indexing for poles and zeros, instead of indexing them as a single set.  This now matches the indexing of SEED RESP and other SEED derivatives.

- The StationXML output now includes uncertainties for poles/zeros and digital filter coefficients in the instrument response. These values are almost never populated in real world use but are included for completeness and conformity to the SEED standard.

This release is backwards compatible with all request tools.

regards,
IRIS DMC web services team
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