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h2. Step-by-step Instructions for Accessing NEPTUNE Canada Seismic Data in IRIS

[IRIS|http://www.iris.edu] is a consortium of over 100 US universities dedicated to the operation of science facilities for the acquisition, management, and distribution of seismological data. The following instructions show you how to see our seismic data on the IRIS website. ([instruments:Step-by-step instructions in a PDF document|^iris_instructions.pdf], [Poster|workshop:Posters^IRIS_WebServices_20110531.pdf] on IRIS webservices presented at NEPTUNE Canada workshop in 2011)

h3. Using the IRIS Link Builder

Link: [http://www.iris.edu/ws/timeseries/builder|http://www.iris.edu/ws/timeseries/builder]

h4. Network Information

[This page|http://www.iris.edu/mda/NV] gives an overview over the NEPTUNE Canada seismometers and their current status. It also links to an interactive [map|http://www.iris.edu/gmap/NV] .

* Network: NV
* Stations (currently available)
** NCBC at [Barkley Canyon|http://www.neptunecanada.ca/sensors-instruments/locations/barkley.dot]
** NC89 at [ODP 889|http://www.neptunecanada.ca/sensors-instruments/instrument-platforms/instrument-platforms.dot?inode=28012]
** NC27 at [ODP 1027|http://www.neptunecanada.ca/sensors-instruments/instrument-platforms/instrument-platforms.dot?inode=29591]
** KEMF at [Main Endeavour Field|http://www.neptunecanada.ca/sensors-instruments/instrument-platforms/instrument-platforms.dot?inode=29840] (MEF)
** NCHR at [Endeavour North|http://www.neptunecanada.ca/sensors-instruments/instrument-platforms/instrument-platforms.dot?inode=29567]

The following illustrations show the builder screen I developed for each NEPTUNE Canada station that shows an October 21-22 event.
* We often view the low-frequency (*L*) channels because they show all data (military screening does not happen for low frequency channels)
* We also often use *Z* to view vertical movements, but you may also wish to view *E* (east-west movement) and *N* (north-south movement) data as well.

h4. Station KEMF

!iris_kemf.png|align=center,border=1,width=600pxpxpxpx!
Note the selections in the red box. The link to the plot is created for you -- all you need to do is to click the link at the bottom to get the plot from our short-period seismometer at Main Endeavour Field.

!kemf_oct21_event.png|align=center,border=1,width=600pxpxpxpx!
{center}{_}This is the resulting plot generated by the IRIS link builder shown above._{center}

h4. Station NC27

!nc27_iris.png|align=center,border=1,width=600pxpxpxpx!
{center}{_}Settings in the the red box are used to generate a plot of data from our NC27 broadband seismometer (located at ODP 1027). _{center}


!nc27_oct21_event.png|align=center,border=1,width=600pxpxpxpx!
{center}{_}This is the resulting plot generated by the IRIS link builder shown above._{center}

h4. Station NC89

\!nc89_iris.png\|align=center,border=1,width=600px
{center}{_}Settings in the the red box are used to generate a plot of data from our NC89 broadband seismometer (located at ODP 889)._{center}


!nc89_oct21_event.png|align=center,border=1,width=600pxpxpxpx!
{center}{_}This is the resulting plot generated by the IRIS link builder shown above._{center}

h4. Station NCHR

!nchr_iris.png|align=center,border=1,width=600pxpxpxpx!
{center}{_}Settings in the the red box are used to generate a plot of data from our NCHR short-period seismometer (located at ODP 889)._{center}


!nchr_oct21_event.png|align=center,border=1,width=600pxpxpxpx!
{center}{_}This is the resulting plot generated by the IRIS link builder shown above._{center}

h4. How to Interpret the Time Axis

Time axis is presented according to the [Julian Day Calender|http://landdb1.nascom.nasa.gov/browse/calendar.html].
Notice in the following illustration that the time axis of the plot is indicated as 2011 294 06, where 294 stand for 21st October 2011 according to the Julian day calendar. (The date indicated in the plot header is also a good guide to relate the Julian day indicated in the time axis to the day of the month)

!iris_time_axis.png|align=center,border=1,width=600pxpxpxpx!

h3. Station Description

The following IRIS link provides station descriptions and information on available channels. This page is also accessible via the IRIS link listed under the "connected data sets" in the [Ocean 2.0 data search|http://dmas.uvic.ca/DataSearch].

[http://www.iris.edu/servlet/quackquery/budFileSelector.do?file=NC27.NV..HHZ.2011.299&schema=BUD|http://www.iris.edu/servlet/quackquery/budFileSelector.do?file=NC27.NV..HHZ.2011.299&schema=BUD]

h4. Network Information

* Network: NV
* Stations (currently available): KEMF, NC27, NC89, NCBC, NCHR

!iris_network_info.png|align=center,border=1!