Station Overview

image
legend Overview at SAIRA
Overview Location
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Network CH
Station Code SAIRA
Station Description Les Sairains Dessus, JU
Latitude (WGS84) 47.30267
Longitude (WGS84) 7.08645
Station altitude (CH1903) 966.0
running from 2011-11-24
...until now
Waveform Access open
Sensor Types Velocimeter
Geological Unit Limestone of Upper Jurassic age
Site Morphology Class T3
T1: flat; T2: slope; T3: ridge and T4: steep ridge;
following Pessina and Fiorini (2014) A GIS procedure for fast topographic characterization of seismic recording stations, Soil Dynamics and Earthquake Engineering, 63, p248-258
Site Morphology Description Rock slope
Ground type EC8
Ground type SIA
Basin Information not in a sedimentary basin with possible 2D/3D effects
Reference
Resonance Frequency (Hz) .64
Uncertainty Factor -
Vs 30 (m/s) -
Location Map


Federal Office of Topograpy: National Map 1:25‘000
Topography Map


Federal Office of Topograpy: DHM25: Digital Height Model 1:25000
Geology Map

Federal Office of Topograpy: Geological map of Switzerland 1:500‘000

Sensor locations

Location Code (none)
Opening Date 24-11-2011
End Date -
Housing Class Urban free field
Housing Description engineering room of an water reservoir. Sensor in basement in SW corner of 1 story building with building footprint (engineering room) 3m x 3m. Building type: concrete. Building density: isolated building. Sensor placed directly on concrete floor, covered with an metal sheet pot.
sensor depth below station 2.6 m
Distance to Building (m) 48

Current Instrumentation

Location code (none)
On date 22-12-2015 10:52:00
Off date -
Sensor model Trillium Compact 120s
Sensor manufacturer Nanometrics
Digitizer model Taurus
Digitizer manufacturer Nanometrics
Channels HHE , HHN , HHZ
Stream Noise (last week) HHE , HHN , HHZ
Location code (none)
On date 24-11-2011 00:00:00
Off date 2012-10-04 00:00:00
Waveform Access open
Sensor model Trillium Compact 120s
Sensor manufacturer Nanometrics
Digitizer model Taurus
Digitizer manufacturer Nanometrics
Channels HHE , HHN , HHZ

Site Characterization

channel group
Empirical Amplification
CH.SAIRA..HH not available

Obtained from spectral modeling of small earthquakes with constant update.

  • Top: Fourier amplification with elastic (dashed line) and anelastic (solid line) amplification functions;
  • Centre: 5% damped response spectra amplification (anelastic);
  • Bottom: Number of recordings used.

See Edwards et al. (2013), Determination of Site Amplification from Regional Seismicity: Application to the Swiss National Seismic Networks. Seismological Research Letters, 84(4), 611–621.

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Authoritative Site Characterization Analysis -
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