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Hello Paul,<br>
<br>
Thank you for bringing these questions forward, and please continue
to do so. This is a perfect example of what the OBSIPtec mailing
list was created for.<br>
<i><br>
</i>
<div class="gmail_default" style="font-size:small"><i>1. Can you
tell me the units used for pressure on the Lamont instruments?
I am assuming pascals, but I don't </i><i><br class="">
</i></div>
<div class="gmail_default" style="font-size:small"><i>see them
written down anywhere. </i><i><br>
</i><i><br>
</i><b>This information can be found in the metadata, which can be
explored via the IRIS DMC MetaData Aggregator (</b><b><a
href="http://ds.iris.edu/mda/7D/J50C/--/HXH?timewindow=2013/09/04%2002:00:00-2014/06/30%2018:00:00">example
of station 7D.J50C HXH channel</a></b><b>). The units are in
Pascals and should be corrected by adding the seafloor pressure
in Pa, found in a Channel Comment field of the metadata. We may
change how this is implemented to be consistent with SEED
convention in the future, and we will make an OBSIPtec
announcement at that time.</b><b><small><br class="">
</small></b><i><br class="">
</i></div>
<div class="gmail_default" style="font-size:small"><i>2. I am seeing
potential 'artifacts' in some of the pressure data - i.e., an
instantaneous offset that happens in between data points in 1
minute sampled data. Not 'geophysically feasible'. Have these
artifacts been noted previously?</i><i><br>
<br>
</i><b>It is difficult to answer this with the given information.
Could you send a sample of the 1 Hz data you are using that
shows the problem? </b><br class="">
<i><br class="">
</i></div>
<div class="gmail_default" style="font-size:small"><i>3. Some of the
data downloads from the Lamont instruments (the only ones we are
interested in) are incomplete, that</i><i><br class="">
</i></div>
<div class="gmail_default" style="font-size:small"><i>is the
download only goes so far (i.e., 3 months) and then stops.
Multiple attempts at downloading always stop at</i><i><br
class="">
</i></div>
<small><i>the same time.<br>
<br>
</i><b>Please let me know which stations you are downloading and
which data request tool you are using and I will follow up on
this.<br>
<br>
</b></small><span style="color: rgb(0, 0, 0); font-family: Times;
font-size: medium; font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal; line-height: normal;
orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: 1;
word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline
!important; float: none; background-color: rgb(211, 211, 211);"></span>Cheers,<br>
Kasey<br>
<br>
<div class="moz-cite-prefix">On 9/26/15 3:09 PM, Paul Johnson wrote:<br>
</div>
<blockquote
cite="mid:CAGEQ6KxQN9KCmp797XKYm_A-3xEEN5nN1eW53ZEHo=Gd9kVqyQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_default" style="font-size:small">Kasey;<br>
<br>
</div>
<div class="gmail_default" style="font-size:small">Your e-mail
was timely - we are working with the Cascadia Initiative data,
as we speak. So the correct location <br>
</div>
<div class="gmail_default" style="font-size:small">for M08C is
very useful.<br>
</div>
<div class="gmail_default" style="font-size:small"><br>
</div>
<div class="gmail_default" style="font-size:small">1. Can you
tell me the units used for pressure on the Lamont
instruments? I am assuming pascals, but I don't <br>
</div>
<div class="gmail_default" style="font-size:small">see them
written down anywhere.<br>
<br>
</div>
<div class="gmail_default" style="font-size:small">2. I am
seeing potential 'artifacts' in some of the pressure data -
i.e., an instantaneous offset that happens in between data
points in 1 minute sampled data. Not 'geophysically
feasible'. Have these artifacts been noted previously?<br>
<br>
</div>
<div class="gmail_default" style="font-size:small">3. Some of
the data downloads from the Lamont instruments (the only ones
we are interested in) are incomplete, that<br>
</div>
<div class="gmail_default" style="font-size:small">is the
download only goes so far (i.e., 3 months) and then stops.
Multiple attempts at downloading always stop at<br>
</div>
<div class="gmail_default" style="font-size:small">the same
time.<br>
<br>
</div>
<div class="gmail_default" style="font-size:small">I can send
you examples of these, but I am not sure if you are the right
person. But your e-mail says to ask.<br>
<br>
</div>
<div class="gmail_default" style="font-size:small">Hopefully,<br>
<br>
</div>
<div class="gmail_default" style="font-size:small">Paul Johnson<br>
</div>
</div>
<div class="gmail_extra"><br clear="all">
<div>
<div class="gmail_signature">
<div dir="ltr">
<div>
<div>
<div>
<div>
<div>Paul Johnson<br>
</div>
School of Oceanography<br>
</div>
Box 357940<br>
</div>
University of Washington<br>
</div>
Seattle, 98195-7940<br>
</div>
office phone: 206-543-8474<br>
</div>
</div>
</div>
<br>
<div class="gmail_quote">On Sat, Sep 26, 2015 at 12:00 PM, <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:obsiptec-request@iris.washington.edu"
target="_blank">obsiptec-request@iris.washington.edu</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Send
OBSIPtec mailing list submissions to<br>
<a moz-do-not-send="true"
href="mailto:obsiptec@iris.washington.edu">obsiptec@iris.washington.edu</a><br>
<br>
To subscribe or unsubscribe via the World Wide Web, visit<br>
<a moz-do-not-send="true"
href="http://www.iris.washington.edu/mailman/listinfo/obsiptec"
rel="noreferrer" target="_blank">http://www.iris.washington.edu/mailman/listinfo/obsiptec</a><br>
or, via email, send a message with subject or body 'help' to<br>
<a moz-do-not-send="true"
href="mailto:obsiptec-request@iris.washington.edu">obsiptec-request@iris.washington.edu</a><br>
<br>
You can reach the person managing the list at<br>
<a moz-do-not-send="true"
href="mailto:obsiptec-owner@iris.washington.edu">obsiptec-owner@iris.washington.edu</a><br>
<br>
When replying, please edit your Subject line so it is more
specific<br>
than "Re: Contents of OBSIPtec digest..."<br>
<br>
<br>
Today's Topics:<br>
<br>
1. Cascadia Year 3 Station 7D.M08C (Kasey Aderhold)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Fri, 25 Sep 2015 18:22:29 -0400<br>
From: Kasey Aderhold <<a moz-do-not-send="true"
href="mailto:kasey@iris.edu">kasey@iris.edu</a>><br>
To: <a moz-do-not-send="true"
href="mailto:obsiptec@iris.washington.edu">obsiptec@iris.washington.edu</a><br>
Subject: [OBSIPtec] Cascadia Year 3 Station 7D.M08C<br>
Message-ID: <<a moz-do-not-send="true"
href="mailto:5605C925.5090803@iris.edu">5605C925.5090803@iris.edu</a>><br>
Content-Type: text/plain; charset=utf-8; format=flowed<br>
<br>
OBSIP user community,<br>
<br>
An error in the longitude of station M08C in the Cascadia
Year 3 data<br>
[network code 7D] has been corrected and the metadata was
reloaded at<br>
the IRIS DMC on 9/16/2015. Please let me know if you have
any questions.<br>
<br>
This is also a good time for a reminder that if you have any
questions<br>
or concerns about OBSIP data, I encourage you to contact me.
If we<br>
cannot get to them immediately, we will still track and
revisit any<br>
issues brought forward.<br>
<br>
Cheers,<br>
Kasey<br>
<br>
--<br>
Kasey Aderhold<br>
Project Associate | IRIS OBSIP Management Office<br>
<a moz-do-not-send="true" href="tel:202-682-2220%20x163"
value="+12026822220">202-682-2220 x163</a> | <a
moz-do-not-send="true" href="mailto:kasey@iris.edu"><a class="moz-txt-link-abbreviated" href="mailto:kasey@iris.edu">kasey@iris.edu</a></a><br>
<br>
<br>
<br>
------------------------------<br>
<br>
_______________________________________________<br>
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href="mailto:OBSIPtec@iris.washington.edu">OBSIPtec@iris.washington.edu</a><br>
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rel="noreferrer" target="_blank">http://www.iris.washington.edu/mailman/listinfo/obsiptec</a><br>
<br>
<br>
End of OBSIPtec Digest, Vol 17, Issue 3<br>
***************************************<br>
</blockquote>
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<pre wrap="">_______________________________________________
OBSIPtec mailing list
<a class="moz-txt-link-abbreviated" href="mailto:OBSIPtec@iris.washington.edu">OBSIPtec@iris.washington.edu</a>
<a class="moz-txt-link-freetext" href="http://www.iris.washington.edu/mailman/listinfo/obsiptec">http://www.iris.washington.edu/mailman/listinfo/obsiptec</a>
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Kasey Aderhold
Project Associate | IRIS OBSIP Management Office
202-682-2220 x163 | <a class="moz-txt-link-abbreviated" href="mailto:kasey@iris.edu">kasey@iris.edu</a></pre>
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