There is a convention for creating phase designations, the modern =
reference is the IASPEI Standard Seismic Phase List:

http://www.isc.ac.uk/doc/analysis/2003p13/index.html

I can't find it in the list and don't recognize it.

Chad


On Sep 20, 2010, at 7:14 AM, Geoffrey wrote:

> There must be a convention for creating these designations just like
> in Fire Control symbology. If you research geophysics and nomenclature
> or the such possibly you can find the convention for creating these
> labels in the first place.
>=20
> Just a suggestion.
>=20
>=20
> --------------------------------------------------
> From: "Thomas Dick" 
> Sent: Monday, September 20, 2010 2:43 AM
> To: 
> Subject: Re: Pis
>=20
>> Is there a reference where I can find a discussion of this subject. I =
figured it was some sort of reflected wave. John did you send something?
>> John Cole wrote:
>>>=20
>>>=20
>>> =
------------------------------------------------------------------------
>>> *From:* Geoffrey 
>>> *To:* psnlist@..............
>>> *Sent:* Sat, September 18, 2010 10:41:22 PM
>>> *Subject:* Re: Pis
>>>=20
>>> To Me it is a P wave which strikes the Inner Core then is reflected =
as an S wave but that's kind of
>>> ridiculous to think about since the outer core is liquid and No S =
waves can travel
>>> through liquids.
>>> An S wave in the inner core will go round in there until it dampens =
to nothing.
>>>=20
>>> --------------------------------------------------
>>> From: "Thomas Dick" >
>>> Sent: Monday, September 13, 2010 12:07 AM
>>> To: >
>>> Subject: Pis
>>>=20
>>> > Using Winquake, particularly on regional events, the vertical and =
broadside Lehman show a peak well ahead of P which it designates as Pis. =
I can't find a reference to it. Is this some old designation for a core =
or mantle reflection? =
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>=20
> Public Seismic Network Mailing List (PSNLIST)
>=20
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