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Behind the Scenes

11.14.17

ROV Ventana undergoes an overhaul

Remotely operated vehicle Ventana is undergoing an overhaul while its host, MBARI research vessel Rachel Carson, is in the shipyard for an important engine upgrade.

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Expedition Log

09.16.17

Wrapping up our Canadian Arctic 2017 expedition

  We completed science operations on the evening of September 12th after conducting a successful ROV dive and collecting several more gravity cores in the Western Mackenzie Trough and Yukon Shelf. Although this was a geosciences expedition, we made several observations of marine life as well. Topside, we have seen numerous species of birds, including …

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Expedition Log

09.15.17

Understanding the glacial history of the western Arctic

Ned King To interpret what we see today both on land and at the seabed, we need to understand how the landscape was different in the past. When we say “past”, we mean on a geologic timeframe—specifically, about 10,000 to 20,000 years ago, when the climate was much colder and glaciers covered much of Canada. There have …

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Behind the Scenes

09.13.17

Testing the waters by taking to the air

Aerial platforms such as UAVs, or drones, as they are more commonly known, are making headway into scientific applications due to the variety of remote sensing capabilities they offer.

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Expedition Log

09.12.17

Pingo-like features and mud volcanoes on the eastern Mackenzie Shelf

Lonny Lundsten and Michelle Côté on behalf of the science team Over the last few days we conducted three remotely operated vehicle (ROV) dives and two autonomous underwater vehicle (AUV) surveys at areas of geologic interest on the eastern Mackenzie Shelf that are called pingo-like features (PLFs) and mud volcanoes. On the adjacent land of …

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Expedition Log

09.05.17

Report from the terrestrial field party

Scott Dallimore and Stephen Wolfe As described in our August 30th blog entry, the 2017 Arctic field program also includes a terrestrial component with Scott Dallimore and Stephen Wolfe from the Geological Survey of Canada (GSC) examining the coastal geology of the northern Yukon. For Scott and Steve, the field program is a bit of …

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Expedition Log

09.03.17

Multi-channel seismic research program on the R/V Araon

A key objective of this research program is to improve our understanding of subsurface geology and permafrost and gas hydrate distribution. We hope to quantify the occurrence and release of fluid and methane gas at depth with an aim of understanding sediment instability, both landslide-type and fluid-related. The primary geophysical method used to asses this scientific question is marine reflection seismic, which involves transmitting controlled …

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