CRECHE Seminar: An EM flow sensor for measuring the axial speed of gliders

An underwater glider deployed by CRECHE doing fine scale measurements near Sodwana Bay [Photo: Sean Whelan – Woods Hole Oceanographic Institute]

Many thanks to the Centre for Research on Environmental, Coastal and Hydrological Engineering (CRECHE) for hosting Dr. Fabian Wolk, the President and co-founder of Rockland Scientific Inc. (Victoria, BC, Canada), a leading developer of scientific instrumentation for ocean microstructure and turbulence measurements. Fabian presented a seminar regarding instrumentation used on robotic autonomous underwater gliders that can be used for long-term ocean deployments that measure mixing and other features of our oceans. CRECHE currently has a project doing such measurements in the Agulhas current off the east coast of KZN – the first such measurements made in this region.
 
TOPIC: An electro-magnetic flow sensor for measuring the axial speed of gliders
ABSTRACT: The axial speed of the glider, U, is an important quantity that affects the flight dynamics of the glider as well as the accuracy of certain oceanographic observations. For example, accurate knowledge of U is required when converting measurement points from time-domain spacing to spatial-domain spacing. Some sensors, e.g. turbulence shear probes, require U for proper scaling of the measured signal. While U can be estimated from hydrodynamic models, a direct measurement of the axial speed is preferred in many applications.  This presentation introduces a small current speed sensor that can be added to gliders to directly measure U to improve glider-borne measurements with shear probes.

IAPSO – IAMAS – IAGA Conference

Dr. Fabian Wolk and Dr. Rolf Lueck will be at the International Association for the Physical Sciences of the Ocean (IAPSO) Conference in Cape Town, South Africa from August 27 to September 1, 2017.

European Wave and Tidal Energy Conference

Dr. Justine McMillan and Jeremy Hancyk will be at the European Wave and Tidal Energy Conference (EWTEC) in Cork, Ireland from August 27 to September 1, 2017.

Justine will be presenting her paper “An Assessment of the TKE Balance at a Tidal Energy Site Using ADCP and Shear Probe Measurements” at the conference.

OMG 2017: Ocean Microstructure Glider Training

Ocean Microstructure Glider training, “OMG 2017”, is a 4-day training workshop that covers all aspects of turbulence measurements using MicroRider integration with ocean glider platforms. The training workshop will cover setup, operation, maintenance, deployment and processing of turbulence data. The workshop is scheduled for April 24-27, 2017 in Victoria, B.C. Canada. Please see the OMG 2017 Preliminary Schedule for details. The event promises to bring together a diverse group of scientists from around the world. Seats are limited, to register please fill out the OMG 2017 Registration Form.

 

VicTOR 2016 Success!

Thank you to everyone who attended VicTOR 2016. It was a successful week and we are happy to see so many people learning about ocean turbulence.

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VicTOR 2016: Victoria Turbulence Observation Retreat

VicTOR 2016 builds on success of previous turbulence training workshops held around the world

The Victoria Turbulence Observation Retreat, “VicTOR 2016”, is a 5-day VMP training workshop that covers all aspects turbulence measurements using VMP profilers, from basic measurement theory, to the setup, operation, maintenance, deployment and processing of VMP turbulence data. The workshop is scheduled for October 17-21, 2016 in Victoria. Please see the VicTOR 2016 Syllabus for details. Seven spots remain at time of this publishing.

 

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Oceanology International

We will be at Oceanology International in London, UK, from March 15 – 17, 2016.  We will be exhibiting at the Canadian Pavilion.

AGU Ocean Sciences Meeting

Rockland Scientific will be at the AGU Ocean Sciences Meeting in New Orleans, NO, from 21-26 February, 2016.  We will be in booth #212.