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Instruments available for use: large lakes observatory

Acoustic Survey Systems

Acoustic Survey Systems

Manufacturer: Various

Model number: P

Location: RV Blue Heron and RLB

Faculty member in charge of instrument: Nigel Wattrus; 218-726-7154; nwattrus@d.umn.edu

Description of instrument and special capabilities: A variety of acoustic instruments for surveying and mapping lake floors and sediments below lakes. Includes: (1) Reson 8101 multibeam sonar w/ integrated “sidescan,” (2) Edgetech CHIRP sub-bottom profiler and sidescan (512i towfish); (3) Edgetech 424 CHIRP sub-bottom profiler (small); (4) Bolt Airguns (available chambers 1, 5 and 20 cubic inch) – portable high pressure generator; (5) Geopulse Boomer subbottom profiler. (more information)

User charges: $1000/day for most systems and combinations; $500/day for smaller individual systems

Other useful information: Most systems designed to be used aboard the RV Blue Heron, but some systems can be moved to vessels of opportunity. The Edgetech 424 can be used from a small boat.

RV Blue Heron

Research Vessel Blue Heron

Manufacturer:

Model number:

Location: North American Great Lakes

Faculty member in charge of instrument: Richard D. Ricketts; 218-726-7826; rickets@d.umn.edu

Description of instrument and special capabilities: 87’ research vessel that can be used for single-day (15 scientists maximum capacity) or multi-day (6 scientists maximum capacity) cruises on Lake Superior and the other North American Great Lakes.

Scientific Equipment: *CTD/Carousel water sampler (CTD also has fluorometer, transmissometer, PAR sensor, pH sensor, D.O. sensor and altimeter and the water sampler has 12 8-liter bottle capacity. *Triaxus- towed underwater CTD package and Optical Plankton Counter (Triaxus CTD also has a D.O. sensor, transmissometer and fluorometer). *60’ Stauffer Midwater Trawl with trawl sonar *Zooplankton nets *RDI Acoustic Doppler Current Profiler, 150 kHz *Ocean Instruments Multi-Corer *Piston corer *Benthos gravity corer *Ponar *Geopulse System (1-3 kHz) *Edgetech Side Scan/ CHIRP system *Knudsen 28kHz Echosounder *Bolt airguns with 1, 5, 10 and 40" chambers *Reson Multibeam Sonar *Radioisotope van with Beckman LS 6500 Liquid Scintillation Counter

User charges: $6,500/day for federally funded projects, $5,556/day for state funded projects

Other useful information: Contact Richard Ricketts for scheduling information. The Blue Heron’s web page contains additional information.

 

Carbon Coulometer

Carbon Coulometer

Manufacturer: UIC

Model number: 5014

Location: RLB 201

Faculty member in charge of instrument: Josef Werne; 218-726-7435; jwerne@d.umn.edu

Description of instrument and special capabilities: This instrument is capable of measuring the weight percent of total carbon in solid samples and inorganic carbon in solid or liquid samples.

User charges: User charges are assessed on a per sample basis, currently $10/sample.

Other useful information: Contact Josef Werne and/or technician Sarah Grosshuesch to schedule instrument time.

Elemental Analyzer (CNS)

Elemental Analyzer (CNS)

Manufacturer: Costech

Model number: ECS 4010

Location: RLB 203

Faculty member in charge of instrument: Josef Werne; 218-726-7435; jwerne@d.umn.edu

Description of instrument and special capabilities:This instrument is capable of measuring the atomic abundance of C, N, and S in solid phase samples.

User charges: User charges are assessed on a per sample basis, currently $15/sample.

Other useful information: Contact Josef Werne and/or technician Sarah Grosshuesch to schedule instrument time.

Isotope Ratio Monitoring Mass Spectrometer

Isotope Ratio Monitoring Mass Spectrometer

Manufacturer: ThermoFinnigan

Model number: Delta Plus XP

Location: RLB 203

Faculty member in charge of instrument: Josef Werne; 218-726-7435; jwerne@d.umn.edu

Description of instrument and special capabilities: This instrument is capable of measuring the stable isotope composition in a variety of samples through interfacing with different “inlet” devices. Coupled with an elemental analyzer, we can analyze C and N isotopes in bulk solid samples (such as organic matter in sediments and soils) by combustion. The EA also gives abundance of C and N. Coupled with a “Gas Bench II”, we can analyze the C isotope composition of dissolved inorganic carbon and solid phase carbonate minerals, as well as the H and O isotope composition of water. Coupled with a gas chromatograph, we can analyze the C and H isotope composition of individual organic molecules that are GC-amenable.

User charges: User charges are assessed on a per sample basis, and depend on the amount of work required by lab technicians to prepare and analyze samples.

Other useful information: Contact Josef Werne and/or technician Sarah Grosshuesch to schedule instrument time.

ITRAX X-ray Fluorescence Core Scanner

ITRAX X-ray Fluorescence Core Scanner

Manufacturer: Cox Analytical Systems

Model number: 6

Location: RLB 15

Faculty member in charge of instrument: Erik Brown; 218-726-8891; etbrown@d.umn.edu

Description of instrument and special capabilities: This instrument (one of two in the United States) is designed for evaluation of sediment cores, but is capable of dealing with a wide range of other materials. It makes high resolution (as fine as 0.2 mm) x-ray fluorescence measurements of a suite of elements in a strip down the axis of the core. Depending upon elemental concentrations present in the sample the analytes can include: Al, Si, P, S, K, Ca, Ti, Mn, Fe, Cu, Ni, Zn, As, Rb, Sr, Zr, and Pb among others. In addition, the ITRAX produces high quality x-radiographic images at resolutions as fine as 0.02 mm.

User charges: Hourly and per section setup charges are assessed, with reduced rates for NSF-sponsored research.

Other useful information: Contact Erik Brown to schedule instrument time.

Sulfur Coulometer

Sulfur Coulometer

Manufacturer: UIC

Model number: 55035-CO-E

Location: RLB 201

Faculty member in charge of instrument: Josef Werne; 218-726-7435; jwerne@d.umn.edu

Description of instrument and special capabilities: This instrument is capable of measuring the weight percent of total sulfur in solid samples and inorganic sulfur in solid or liquid samples.

User charges: User charges are assessed on a per sample basis, currently $10/sample.

Other useful information: Contact Josef Werne and/or technician Sarah Grosshuesch to schedule instrument time.

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