Raw data from the experiment is archived at the Data Management Center operated
by the IRIS consortium.
The original field tapes with raw data are stored in Yale.
Yale also has a collection of tapes with data in SEED format. See this index for availability.
Results of ongoing data analysis
A picture taken through the helicopter porthole during the 1997 field campaign in Kamchatka |
Petropavlovsk-Kamchatsky (the City of Peter-and-Paul in Kamchatka) is dominated by the active volcanoes. |
An abandoned tank facing the Pacific, waiting for an American invasion... |
Sunset in the central valley of Kamchatka, June 1998 |
Examples of data
A record section of M=6.3
VANUATU ISL. earthquake on September, 21, 1998. Shown are vertical
traces from 6 stations operational at the time.
P-S converted phases clearly visible in the records of the first-arriving P wave from an earthquake on 02/06/1999. Direction towards the hypocenter is ~172 degrees, with compressional (P) and radial (SV) motion concentrated on Z and N channels, and transverse (SH) motion - on E channel. See maps for station locations.
A number of sites was affected by a serious malfunction
of the data acquisition systems, manifested in polarity reversals and
large changes in
gain. The problem was investigated in some detail, and documented,
for PAN,
where
the problem was most severe. Other sites where the problem was diagnosed:
PZT, TKI (large fraction of the recording period), MIL , ZUP (occasional
glitches).
The problem appears to be caused by the common mode voltage arrising
through
poor insulation from the ground. Peculiarity of local power sources
may have had something to do with the malfuction as well.
Besides V. Levin, extensive amount of time was spent
on this problem by J. Fowler and D. Johnson of PASSCAL.
Empirically, the problem appears to be "correctable" , in the sense
that
deviations from nominal recording parameters are reasonably stable,
and may be accounted for.
At some sites (PAN, BNG) changes were made during the deployment, read
station notes.
Page Updated 01/22/2001
Vadim Levin