Thread: FDSN Working Group on Products

Dear all,

Recently the PQLX software has been installed at ORFEUS Data Center
( http://www.orfeus-eu.org ) to produce PDF's ( http://www.orfeus-eu.org/cgi-bin/pqlx.cgi )
for (almost) all stations in the Virtual European Broadband Seismograph Network (VEBSN)
( http://www.orfeus-eu.org/Data-info/vebsn.html ). The VEBSN is the pool of BB
stations that presently includes stations from the following networks:


AI - Antarctic Seismographic Argentinean Italian Network
BE - Belgian Seismic Network
BN - UK-Net, Blacknest Array
BS - National Network of Bulgaria
BW - BayernNetz, Germany
CA - Catalan Seismic Network
CH - Switzerland Seismological Network
CR - Croatian Seismograph Network
CZ - Czech Seismic Network
DK - Danish Seismological Network
ES - SPANISH DIGITAL SEISMIC NETWORK
FN - Northen Finland Seismological Network
FR - French Broadband Seismological Network
G - GEOSCOPE
GB - Great Britain Seismograph Network
GE - GEOFON
GR - German Regional Seismic Network
HE - Finnish National Seismic Network (HEL)
HF - Swedish Seismic Array Network
HL - National Observatory of Athens Digital Broadband network
HP - University of Patras, Seismological Laboratory
HT - Aristotle University of Thessaloniki Seismology
HU - Hungarian Seismological Network
II - IRIS/IDA Network
IP - Instituto Superior Tecnico Broadband Seismic
IU - IRIS/USGS Network
KO - Kandilli Observatory
MN - MEDNET
NA - Netherlands Antilles Seismic Network
NL - Netherlands Seismic Network
NO - Norwegian Seismic Array Network
NR - NARS Array
NS - Norwegian National Seismic Network
OE - Austrian Seismic Network
PL - POLISH SEISMOLOGICAL NETWORK
PM - Portuguese National Seismograph Network
RO - Romanian Seismic Network
SK - Slovak National Seismic Network
SL - Slovenia Seismic Network
SS - SINGLE STATION
VI - SIL-Icelandic National Digital Seismograph Network


http://www.orfeus-eu.org/Data-info/pqlx/NL.HGN/NL.HGN.01.BHZ.LMONTH.png

Best regards,
Reinoud Sleeman
ORFEUS


________________________________

Van: fdsn-wg3-products-bounces<at>iris.washington.edu namens Tim Ahern
Verzonden: wo 18-6-2008 1:01
Aan: FDSN WG III-Products
CC: Gerardo Suarez
Onderwerp: [fdsn-wg3-products] FDSN Working Group on Products


Dear members of the FDSN WG III on Products

You are receiving this email because you are a member of FDSN Working Group III on Products.
If you wish to have your email address removed, you can request this yourself at the following location
http://norman.iris.washington.edu/mailman/listinfo/fdsn-wg3-products
where a variety of options are available.

At the last FDSN meeting in Perugia, this group was formed and we took some initial first steps.

We identified that we should attempt to have FDSN networks produce
Probability Density Functions (PDF) images of Power Spectral Density (PSD) measurements. We selected
this as the first FDSN product since freely available software to produce the PDF plots exist. The PQLX
software has been written by Richard Boaz with primary support from the USGS, IRIS PASSCAL and the IRIS
Data Management System. The PDFs are also very useful products that help estimate the quality of a seismic station.

A recent article in the ORFEUS Newsletter describes the PQLX software, what it does and where users
can download it. Please refer to
www.orfeus-eu.org/Organization/Newsletter/vol8no1/PQLX/PQLX.htm http://www.orfeus-eu.org/Organization/Newsletter/vol8no1/PQLX/PQLX.htm
for more information.


The next FDSN meeting will be held in conjunction with the IASPEI meeting in Capetown, South Africa. The WG III
meeting is presently scheduled to take place on Tuesday January 13, 2009.


I am writing to you to determine if you will be able to participate in the installation of the PQLX software and
the generation of the PDF plots for stations in your network. We still have more than 6 months until the meeting and
this would allow for some statistically significant results to be generated.


I would appreciate it if each of you can answer this email and let me know your intentions with respect to
the generation of this first FDSN Data Product. I know that some of you are already doing this at your centers but
your response is still requested. Please let me know what networks and/or stations you will be generating
the PDF's for.


I look forward to hearing from you.


Best Wishes


Tim Ahern
Chair, FDSN WG III on Products








FDSN Archive for Continuous Data

International Federation of Digital Seismograph Networks (FDSN)

c/o IRIS DMC

1408 NE 45th Street #201

Seattle, WA 98105

(206)547-0393 x118

(206) 547-1093 FAX



An example of a PDF plot for 2006 from the IRIS/IDA station OBN

Dear all,

the present situation at GFZ is that PQLX is installed and operating in
testing mode, but no web page yet. We have also almost all VEBSN
networks from Reinoud's list plus some non-public European stations and
many non-European RT networks. However, we are not permanently archiving
and distributing (and therefore also not calulating PDFs for) those
networks, where the primary responsibility is somewhere else (at ODC,
INGV, IPGP or IRIS DMC). In addition, we will in future apply PQLX to
our comprehensive temporary network archive.

For explanation of the general situation in Europe let me add that we
are presently establishing the EIDA, the European Integrated Data
Archive, with ODC, INGV, IPGP and GFZ as primary nodes and hopefully a
set of individual network data centers as secondary nodes. IPGP and
INGV, as it looks now, will be responsible for the archives of
GEOSCOPE/MedNet plus their different national networks while ODC and GFZ
share primary responsibility for about half of the other European
networks each. In addition, GFZ archives a number of RT networks from
outside of Europe such as NU - Nicaragua, CX - N. Chile, AF - South
Africa and IA - Indonesia, certainly more in future. For all of those
networks PQLX products will be available soon.

Regards,

Winfried

dear all,
Since January 2007, daily noise PDF are computed
for channels BH and LH of every GEOSCOPE stations
using our own software.
Noise level are computed at date day+8 for real time data
and whenever data are archived for the other stations.
Noise PDF are accessible on GEOSCOPE web site
geoscope.ipgp.jussieu.fr -> stations -> noise level
We are not planning for the moment to install pqlx
at GEOSCOPE data center.

Best regards
Eleonore Stutzmann

director of GEOSCOPE observatory
Institut de Physique du Globe de Paris
4 place Jussieu
75005 Paris
France
tel 33 1 44 27 24 13