SED Stations

Station Overview

Field	Value
image
legend

Overview Location
Picture Gallery	details...

Field	Value
Network
Station Code
Station Description
Latitude (WGS84)
Longitude (WGS84)
Station altitude (CH1903)
running from
...until
Waveform Access

Network	CH
Station Code	BOBI
Station Description	Boebikon, Wasserreservoir Allmend, AG
Latitude (WGS84)	47.54631
Longitude (WGS84)	8.33985
Station altitude (CH1903)	570.0
running from	2013-12-20
...until	now
Waveform Access	open

Field	Value
Sensor Types

Sensor Types	Accelerometer Velocimeter

Field	Value
Geological Unit
Site Morphology Class
Site Morphology Description
Ground type EC8
Ground type SIA
Basin Information
Reference

Geological Unit	Fluvial glacial sediments on sandstones and marls of Miocene age (Upper Freshwater Molasse - Tertiary)
Site Morphology Class	T1 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	Top of a hill/plateau
Ground type EC8	B
Ground type SIA	E
Basin Information	not in a sedimentary basin with possible 2D/3D effects
Reference	Poggi Valerio, Fäh D., "Böbikon, Switzerland (BOBI) Report on site characterization", Swiss Seismological Service, ETH Zürich, 2014

Field	Value
Resonance Frequency (Hz)
Uncertainty Factor

Resonance Frequency (Hz)	1.87
Uncertainty Factor	-

Field	Value
Vs 30 (m/s)

Vs 30 (m/s)	590

Field	Value
Location Map
Topography Map
Geology Map

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

Field	Value
Location Code
Opening Date
End Date
Housing Class
Housing Description
sensor depth below station
Distance to Building (m)

Location Code	BT
Opening Date	20-12-2013
End Date	-
Housing Class	Borehole
Housing Description	Casing: steel; casing length 158m; diameter 8.4cm (inner), 10.16 cm (outer); locking mechanism: Lennartz hole lock; dry; <2deg off vertical; emplacement depth 154m; Sensor cable with SED custom built strain relief at borehole head.
sensor depth below station	154.0 m
Distance to Building (m)	-

Location Code	SF
Opening Date	20-12-2013
End Date	-
Housing Class	Free field
Housing Description	SED large pot in soil
sensor depth below station	1.0 m
Distance to Building (m)	-

Current Instrumentation

Field	Value
Location code
On date
Off date
Sensor model
Sensor manufacturer
Digitizer model
Digitizer manufacturer
Channels
Stream Noise (last week)

Location code	BT
On date	05-07-2024 09:17:00
Off date	-
Sensor model	LE-3D-BH
Sensor manufacturer	Lennartz
Digitizer model	Q330HRS
Digitizer manufacturer	Quanterra
Channels	EH2 , EH3 , EHZ
Stream Noise (last week)	EH2 , EH3 , EHZ

Location code	SF
On date	18-12-2024 13:30:00
Off date	-
Sensor model	EpiSensor ES-T
Sensor manufacturer	Kinemetrics
Digitizer model	Q330HRS
Digitizer manufacturer	Quanterra
Channels	HGE , HGN , HGZ
Stream Noise (last week)	HGE , HGN , HGZ

Instrumentation History

Field	Value
Location code
On date
Off date
Waveform Access
Sensor model
Sensor manufacturer
Digitizer model
Digitizer manufacturer
Channels

Location code	BT
On date	21-11-2016 15:30:00
Off date	2024-07-05 09:17:00
Waveform Access	open
Sensor model	LE-3D-BH
Sensor manufacturer	Lennartz
Digitizer model	Q330Splus
Digitizer manufacturer	Quanterra
Channels	EH2 , EH3 , EHZ

Location code	BT
On date	20-12-2013 14:00:00
Off date	2016-11-21 15:30:00
Waveform Access	open
Sensor model	LE-3D-BH
Sensor manufacturer	Lennartz
Digitizer model	Q330Splus
Digitizer manufacturer	Quanterra
Channels	EH2 , EH3 , EHZ

Location code	SF
On date	05-07-2024 09:17:00
Off date	2024-12-18 13:30:00
Waveform Access	open
Sensor model	EpiSensor ES-T
Sensor manufacturer	Kinemetrics
Digitizer model	Q330HRS
Digitizer manufacturer	Quanterra
Channels	HGE , HGN , HGZ

Location code	SF
On date	21-11-2016 15:30:00
Off date	2024-07-05 09:17:00
Waveform Access	open
Sensor model	EpiSensor ES-T
Sensor manufacturer	Kinemetrics
Digitizer model	Q330Splus
Digitizer manufacturer	Quanterra
Channels	HGE , HGN , HGZ

Location code	SF
On date	20-12-2013 14:00:00
Off date	2016-11-21 15:30:00
Waveform Access	open
Sensor model	EpiSensor ES-T
Sensor manufacturer	Kinemetrics
Digitizer model	Q330Splus
Digitizer manufacturer	Quanterra
Channels	HGE , HGN , HGZ

Site Characterization

channel group Filter dialog for field: channel group and Options for empty fields: only empty fields no empty fields include empty fields	Empirical Amplification Filter dialog for field: Empirical Amplification and Options for empty fields: only empty fields no empty fields include empty fields
CH.BOBI.SF.HG
CH.BOBI.BT.EH

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.

H/V pick image:
Authoritative Site Characterization Analysis	details...

Field	Value
measurements nearby

measurements nearby	list...