Offshore Fieldwork Equipment

Multibeam Bathymetry

 

Kongsberg EM2040

The Kongsberg EM2040 multibeam echo sounder of the University of Bern operates on a bandwith of 300 to 400 kHz and transmits 400 soundings through 128 channels at each ping providing high-resolution bathymetric measurements up to several hundred meters in fresh water. Acoustic waves velocities are calibrated with sound speed profile measurements of the water coloumn. During aquisiton the SIS software has been used to adjust swath angle, frequency etc according to the occurring depths. CARIS HIPS/SIPS software (Caris, Fredericton, Canada) was used for raw data processing. For detailed system specs and datasheet click here.

mbeamkongsberg

 

Geoswath Plus – wide swath bathymetry

The Geoswath Plus from the Unit of Hydraulic Engineering at University of Innsbruck runs is a ultra-high resolution swath bathymetry system which is mounted on a cataraft “happycat ultralight” and runs at a system frequency of 500 kHz. The system is especially useful for shallow water depths up to 50 m providing a theoretical depth resolution of 1.5 mm. GS4 is used as aquistion software and CARIS HIPS/SIPS software (Caris, Fredericton, Canada) for raw data processing. A great advantage is that the system contemporary measures depth information and Sidescan sonar data. For more system specs click here.

mbeamhydraulic

 

Seismic Profiling

 

Kongsberg GEOPULSE subbottom profiler "Pinger"

The Kongsberg Geopulse "Pinger" is a high frequency seismic source 3.5 kHz and consists of four piecoelectric crystals which are both, transducer as well as receiver. The system provides a theoretical vertical resolution of 10 cm and penetrates up to 70 m depending on the sediment properties and water depths.

Seismics Piburgersee

 

"Centipede" Sparker source

The "Centipede" sparker source is developed at the Ghent University and consists of a single-channel streamer transmitting on a broad frequency range (0.4-1.5 kHz) and a row of ten hydrophones . Both, seismic source and receiver, are mounted at the back of the vessel and pulled over the lake with a cable layout of 20 m. The Sparker itself is armed with 400 electrodes releasing a high-voltage underwater spark, which produces an acoustic sound at a frequency of 750 ms. To use this method in freshwater lakes the Sparker need to be packed in a plastic bag filled with saltwater, as the electrodes would not discharge properly in a freshwater environment. Energy output was set to 400 J, as this provided the best data quality. During acquisition a bandpass filters (High pass 21000 Hz and Low Pass 820 Hz) has been applied.

sparker

 

Sediment Coring

shortcoring

Short gravity coring system with hammer action.

Helvetiacoring

"Helvetia" platform from ETH Zürich armed with a percussion piston coring system was used to retrieve 3m long cores from defined depths to finally obtain a composite long core of up to 15m length on e.g. Plansee.

kullenberg

"Ararat" XL Coring Platfrom from ETH Zürich is equipped with a standard piston coring system which will be used on Achensee in order to retrieve up to 14m long cores.


Onshore Fieldwork Equipment

 

Electric Resistivity Tomography

Earth resistivity system for multielectrode tomography (Lippmann 4point light 10W) 

geo-electrics

 

Ground Penetrating Radar

GSSI 3200 Multiple Low-Frequency Antenna (15-80 MHz)

GPR

 

Laboratory equipment

Sediment Core Scanning

ImageScan, MSCL and XRF Scanner see more Info on Austrian Core Facility Homepage

 

Smartcis Scanner

MSCL

XRF scanner installed

 

Grainsize Analyzer

Malvern Mastersizer 3000 for grain-size analysis by laser diffraction.

LV (large volume) and MV (medium volume) input modules for wet samples. HydroSight module for visualization and quality control of the dispersion.

Malvern3000

 

C/N Element Analyzer

Carlo Erba NA-1500 Elemental Analyzer (at Institute of Ecology, Univ. Innsbruck) is used to measure C/N reatios of organic matter

Coming soon!

 

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