Featured Research

from universities, journals, and other organizations

Ocean-sampling robot gliders tracking animals, providing storm data

Date:
September 12, 2013
Source:
Dalhousie University
Summary:
A massive coordinated ocean sampling effort is being undertaken to map oceanographic properties of the Atlantic shelf from Georgia to Nova Scotia.

Ocean Tracking Network ocean glider (sans wings) getting prepped before deployment on 10/09.
Credit: Christena MacDonald, OTN/MEOPAR

Researchers from U.S. and Canadian institutions are teaming up for a coordinated launch of up to 14 autonomous ocean-monitoring gliders. The gliders will collect a unique and extensive set of oceanographic and animal-tracking data along the North American Eastern Seaboard. The mission represents the largest international use of coordinated autonomous sampling vehicles attempted to date.

Launched between Georgia and Nova Scotia, the gliders will travel east to the continental shelf break and back. The multi-institution survey will serve as proof of concept of large-scale marine coordination to monitor the oceanographic conditions that directly influence animal migrations and storm events.

Rutgers University leads the mission to which the Dalhousie-based Ocean Tracking Network (OTN) is contributing two Slocum gliders to be launched from Yarmouth and Halifax, respectively. Members of the U.S. Integrated Ocean Observing System (IOOS) are also participating.

Slocum gliders -- named for the first sailor to travel solo around the world, Nova Scotian Joshua Slocum -- move by altering their density to ascend or descend in the water column. Wings on the glider convert vertical displacement into forward motion resulting in a saw-tooth dive pattern down to 500 metres below the surface. A series of sampling instruments collects, stores and transmits data back to researchers via satellite in near real-time.

Eight of the 14 gliders are equipped with Vemco mobile transceivers -- tracking devices that record the presence of acoustically tagged marine animals. The timing of the coordinated glider mission coincides with migration periods for many species and serves to inform poorly understood migration patterns of species like blue sharks. Of special interest to OTN investigators are insights into the unanticipated absence of right whales off the southern tip of Nova Scotia in 2013.

The mission will also collect important data on the shelf's thermal structure for forecasting major storm events. September to October is the peak differential period between air and sea temperatures -- the phenomenon that powers hurricanes.

"We are hitting just the right moment to capture important data that will almost certainly impact our understanding of animal movements and major storms in Nova Scotia and the Atlantic coast," said Dr. Fred Whoriskey, OTN executive director. "This is a very exciting opportunity for scientists to serve the general public, and to make this information easily understandable and publicly accessible."


Story Source:

The above story is based on materials provided by Dalhousie University. Note: Materials may be edited for content and length.


Cite This Page:

Dalhousie University. "Ocean-sampling robot gliders tracking animals, providing storm data." ScienceDaily. ScienceDaily, 12 September 2013. <www.sciencedaily.com/releases/2013/09/130912104812.htm>.
Dalhousie University. (2013, September 12). Ocean-sampling robot gliders tracking animals, providing storm data. ScienceDaily. Retrieved September 1, 2014 from www.sciencedaily.com/releases/2013/09/130912104812.htm
Dalhousie University. "Ocean-sampling robot gliders tracking animals, providing storm data." ScienceDaily. www.sciencedaily.com/releases/2013/09/130912104812.htm (accessed September 1, 2014).

Share This




More Earth & Climate News

Monday, September 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Lightning Hurts 3 on NYC Beach

Lightning Hurts 3 on NYC Beach

AP (Sep. 1, 2014) A lightning strike injured three people on a New York City beach on Sunday. The storms also delayed flights and interrupted play at the US Open tennis tournament. (Sept. 1) Video provided by AP
Powered by NewsLook.com
Thailand Totters Towards Waste Crisis

Thailand Totters Towards Waste Crisis

AFP (Sep. 1, 2014) Fears are mounting in Bangkok that poor planning and lax law enforcement are tipping Thailand towards a waste crisis. Duration: 01:21 Video provided by AFP
Powered by NewsLook.com
Washington Wildlife Center Goes Nuts Over Baby Squirrels

Washington Wildlife Center Goes Nuts Over Baby Squirrels

Reuters - US Online Video (Aug. 30, 2014) An animal rescue in Washington state receives an influx of orphaned squirrels, keeping workers busy as they nurse them back to health. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Raw: Volcano Erupts on Papua New Guinea

Raw: Volcano Erupts on Papua New Guinea

AP (Aug. 29, 2014) Several communities were evacuated and some international flights were diverted on Friday after one of the most active volcanos in the region erupts. (Aug. 29) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins