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Summary

Seismic data recorded at Terra Nova Bay very broad band station TNV are
currently available in binary SAC Format. The sensor is a very broad band
seismometer, whose response function is flat between 360 and 0.1 seconds.
The dynamic range spans over 140 dB, thanks to the 24 bits of the Quanterra
digitizer. The site is a cave of about 10 meters inside the ... granite, at a few
hundreds of meters from the Italian Base. The cave has been divided into
two rooms, in order to ensure as mach insulation as possible from the outside
temperature and pressure variations.

Although the station was installed permanently and should record continously,
for different reasons only relatively short data chunks of about 2 months per
year are available.

* In 1991 the station was operating from Feb 18th (049) to Apr 24th(114).
* In 1992 from Jan 10th (010) to Mar 16th (076).

A list of data records is on line for years 1991 and 1992. Data concerning
these two periods are now available via automatic request at FIS URL
(http://bounty.ingrm.it/data-center.html)
Technical information (response function, station location,
etc.) about the station, as well as a list of the data now released, can be
also requested via the same form.

A brief official description of TNV station is in the IRIS Station Book
as well as at FIS Web site.

Source Name: Ground Station> TerraNova Bay, Antarctica
Sensor Name: "Seismometer > 3 Component Seismic Sensor Streckeisen
STS-1/VBB, Quanterra 24 bit Digitizer"

Geographic Coverage Spatial coordinates   

N: -74.0

S: -75.0

E: 165.0

W: 164.0

Temporal Coverage

Start Date: 1989-01-01

Location Keywords

CONTINENT > ANTARCTICA > TerraNova Bay GEOGRAPHIC REGION > POLAR

Science Keywords

SOLID EARTH > SEISMOLOGY > EARTHQUAKE OCCURRENCES

ISO Topic Category

GEOSCIENTIFIC INFORMATION

Platform

GROUND STATIONS

Instrument

SEISMOMETERS

Project

PNRA > Programma Nazionale di Ricerche in Antartide

Quality
Data are often noisy at high frequencies, due to the proximity
of the station to human activities. Bad timing occurred during
the time period 91/01/01-91/01/18: a bad clock initialization
introduced a 24 hours time shift.

Ancillary Keywords

EARTH TOMOGRAPHY EARTHQUAKES ICEQUAKES MOMENT TENSOR SEISMIC EVENT LOCATION SOLID TIDES

Originating Center

ING

Data Center

Istituto Nazionale di Geofisica e Vulcanologia, Italy Data Center URL: http://www.ingv.it/ Dataset ID: FIS Data Data Center Personnel Name: SALVATORE MAZZA Phone: + 39 6 51860481 Fax: + 39 6 5041181 Email: mazza at giove.ingrm.it Contact Address: Istituto Nazionale di Geofisica Via di Vigna Murata, 605 City: Roma Postal Code: 00143 Country: Italia

Personnel

SALVATORE MAZZA Role: DIF AUTHOR Role: TECHNICAL CONTACT Phone: + 39 6 51860481 Fax: + 39 6 5041181 Email: mazza at giove.ingrm.it Contact Address: Istituto Nazionale di Geofisica Via di Vigna Murata, 605 City: Roma Postal Code: 00143 Country: Italia ANDREA MORELLI Role: INVESTIGATOR Phone: + 39 6 51860443 Fax: + 39 6 5041181 Email: morelli at ingv.it, morelli at giove.ingrm.it Contact Address: Istituto Nazionale di Geofisica Via di Vigna Murata, 605 City: Roma Postal Code: 00143 Country: Italia

Publications/References
A description of the very broad band station can be
found in Morelli A., et al. (1991), The Permanent
Unmanned Very-Broad Band Seismic Station in Terra Nova
Bay: Installation, Tests, and Perspectives, Mem.Soc.Geol.It.,
46, 575-583.
Preliminary data analysis and quality tests are described in
Vinci et al. (1992), VBB Seismometric data 1990-1991,
internal report, Istituto Nazionale di Geofisica;
Pinzi S. and V.Torello (1994), Dati sismometrici registrati
dalla stazione sismografica di Baia Terra Nova,
internal report, Istituto Nazionale di Geofisica.

Creation and Review Dates

Last DIF Revision Date: 1999-01-27

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