GNSS, seismic broadband and strong motion permanent networks in West Indies

Resource type

Seismic and GNSS Network

Identifier

doi:10.18715/ANTILLES.WI

Metadata

[ Datacite Search ]

Publisher

Array

Publication year

2008

FDSN network code

WI

Network name

West Indies Network

Date

Collected : 2008-01-01

Coverage

West Indies
N: 18.50 S: 10.00 E: -60.00 W: -64.00

 

Creator

Institut De Physique Du Globe De Paris (IPGP)

Abstract

The WI network is composed of stations geographically distributed all along the Lesser Antilles subduction zone, from Grenada in the south, to St Barthélémy in the north.
The stations all share the following features: (1) very Small Aperture Terminal (VSAT) satellite telemetry, (2) solar power and 10-day battery, (3) multi sensor stations with broadband seismometer (Nanometrics - Trillium120s or 240s) , accelerometer (Kinemetrics - Episensors +/- 2G) and continuous GNSS (Trimble, NetR9), (4) vault and installation design to minimize environmental effects on the instruments.
The vault design addresses several needs: environmental insulation, ground coupling,and instrument security.
The seismic pier, which can accommodate a broadband seismometer, with its insulation, and an accelerometer, is mechanically isolated from the vault walls.
The sensors are separated from the electronics in order to avoid any electric, magnetic and thermal mutual influence.
The vault is further insulated with 6 cm thick Styrofoam panels covering every floor. A “CASSIS” shielding (CASserole SISmologique – seismic cooking pot) which is based on the granite slab and “cooking pot”, attenuates the barometric effects and then decreases the vertical noise level of broadband sensors by several dBs.
An additional mumetal cover on Trillium 240 damps magnetic field variations by 100 dB between 50s and 600s, which is the range of the strongest natural variations during magnetic storms.
Data of this network are fully disseminated in SEED format (Seismic data) or Rinex format (GNSS) in real time (raw data) and after a validation.

Citation

Institut De Physique Du Globe De Paris (IPGP). (2008). GNSS, seismic broadband and strong motion permanent networks in West Indies. Institut de physique du globe de Paris (IPGP), Université de Paris. https://doi.org/10.18715/ANTILLES.WI

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Licence

Creative Commons Attribution 4.0 International

Data

Data size

Approximately 15 operational stations, greater than 1GBytes per day.

Data format

miniSEED for seismic data
FDSN stationXML for seismic metadata
Rinex for GNSS data

Data access

• Geophysical Data (metadata, time series)
• GNSS Data

References

Is Part Of

• Institut De Physique Du Globe De Paris (IPGP). (2021). Data collection of the seismological and volcanological observatory of Guadeloupe. Institut de physique du globe de Paris (IPGP). https://doi.org/10.18715/GUADELOUPE.OVSG
  doi:10.18715/guadeloupe.ovsg
• Institut De Physique Du Globe De Paris (IPGP). (2021). Data collection of the seismological and volcanological observatory of Martinique. Institut de physique du globe de Paris (IPGP), https://doi.org/10.18715/MARTINIQUE.OVSM
  doi:10.18715/martinique.ovsm

Is Documented By

• Anglade, A., Lemarchand, A., Saurel, J.-M., Clouard, V., Bouin, M.-P., De Chabalier, J.-B., Tait, S., Brunet, C., Nercessian, A., Beauducel, F., Robertson, R., Lynch, L., Higgins, M., & Latchman, J. (2015). Significant technical advances in broadband seismic stations in the Lesser Antilles. Advances in Geosciences, 40, 43–50. https://doi.org/10.5194/adgeo-40-43-2015
  doi:10.5194/adgeo-40-43-2015

Stations in this network

• Stations map
• List of the stations