The Teledyne Marine Channel

2017 New Products / Technology from Teledyne Vehicles - presented at TMTW2017

Wed, 02 May 2018 11:49:56 GMT

Teledyne Marine Oceanographic Research Overview - TMTW17

Mon, 29 Jan 2018 09:51:56 GMT

Introduction to Teledyne Marine's Oceanographic Research technology and capabilities, presented at TMTW17.

Slocum Gliders in multidisciplinary studies on the Scotian Shelf and beyond

Wed, 20 Dec 2017 09:47:14 GMT

Abstract:

The Ocean Tracking Network and the Marine Environmental Observation, Prediction and Response (MEOPAR) Network Centre of Excellence have jointly funded the Coastal Environmental Observation Technology and Research (CEOTR) glider program since 2010. Our glider program supports a wide variety of research focused on understanding physical, chemical and biological oceanographic processes with collaborators across Canada and the USA. Researchers that bridge the gap between ocean physics and marine animal movement have utilized measurements of water masses and current estimates determined from Slocum gliders to help understand salmon migration. Measurements of oxygen concentration over multiple years have helped validate circulation models to estimate low-oxygen zones which could alter the habitat of sensitive marine animals such as the wolffish. Slocum gliders equipped with passive and active acoustic sensors have been used to provide multiyear monitoring of both whales and their prey in Atlantic Canada and in the Pacific Ocean off of Vancouver Island. In order to adapt to this broad scope of research, we have had to adapt our gliders to the specific needs of researchers and solve case-specific issues as they arise. Through training and collaborations, we support innovative research across disciplines by working with researchers, industry and government.

Presented by:

Adam Comeau
Dalhousie University

Multi-Modal Autonomous Exploration of Ice-Ocean Interactions at an...

Wed, 29 Nov 2017 09:58:32 GMT

Presenter:
Alexander Forrest
University of California - Davis

Abstract:

Predicting the response of the ice-ocean system is becoming increasingly critical in an era where climate change is leading to ever more common mass wasting events of ice shelves in Arctic and Antarctic regions. In order to understand why these ice shelves are collapsing at an unprecedented rate and how they will continue to evolve in the future with changing climate, it is critical to make in situ observations of the physical processes driving these large mass wasting events. In these extreme environments, such measurements are only possible through autonomous robotic platforms.

On April 7, 2016, two large (~10km long by 5 km wide) fragments broke off the Nansen Ice Shelf in the Ross Sea in a single mass-wasting event in close proximity to a suspected subglacial channel. In 2017, UBC-Gavia, an autonomous underwater vehicle (AUV), and Storm Petrel, a buoyancy driven autonomous underwater vehicle (these are often referred to as gliders), were deployed from the R/V Araon as part of the Land-Ice/Ocean Network Exploration with Semiautonomous Systems (LIONESS) collaborative framework led by the Korean Polar Research Institute. Using a coordinated robotics approach, observations were made of: 1) under-ice topography and basal roughness; 2) the boundary layer dynamics at the ice-water interface; and, 3) the mid-water column behavior, in both the near and far field, of outflowing supercooled water coming from beneath the ice shelf. While not without challenge, such an approach is one of the few ways to get a synoptic views of these dynamic and evolving systems.