Arctic Team Surveys Sub-ice Sea11/04/2011
|A team of top scientists working on the Catlin Arctic Survey 2011 has chosen Nortek’s Z-Cell Aquadopp Current Profiler to provide current data of water under the Arctic Ice sheet. The instrument was selected for its Z-Cell capability, high accuracy, lightweight structure and robustness. It has been tested up to -50°C.|
Catlin Arctic Survey 2011 consists of four polar explorers and a team of scientists examining the surface layers of the Arctic Ocean during the extreme conditions of an Arctic winter and early spring. The Explorer team will undertake two expeditions walking across the frozen ocean, taking measurements of the upper layers of the Arctic Ocean, using devices dropped through holes in the sea ice.
The powerful ocean currents that circulate warm and cold water around the world’s oceans (thermohaline circulation) have a major impact on Earth’s climate and weather patterns.
While a number of processes drive thermohaline circulation, there are a few that are unique to the Arctic. The combination of these processes increase water density, eventually making surface waters so dense they overturn and sink to the depths of the Arctic Ocean where they begin to flow south. This process is vital to thermohaline circulation. As sea ice melts, it creates a fresh surface layer which insulates the remaining sea ice from the warmer Atlantic water below.
Recent experiments indicate that these separate layers could be mixing, causing the Arctic sea ice to melt faster. Scientists want to know where the surface water under the ice is heading. Is it staying in the top layer? Is it mixing with the saltier waters below? All outcomes could impact thermohaline circulation. By measuring salinity, temperature and currents at a given depth, scientists can gauge the movement of the different layers of the Arctic Ocean.
Read more about:
salinity Current Ice
Supplier: Nortek AS
More news from this supplier:
Nortek Expands Lease Partnership with GSE Rentals
NORTEK Partners with Sea and Land Technologies
Nortek and Seatronics Join Forces in Brazil
Nortek Launches Webinar Series
Turbulent Flow Affecting Tidal Turbines
New Wave Analysis Software
Sidescan Sonar Finds 170 Year Old Wreck
INSTALL SRL at Sonardyne Training Center
IMCA Reaches Thousand Membership
GEO Business 2015 Launches Calls for Papers
Subsea Vehicle Theme Added to Boston UTS14
AUV Pioneer Receives MTS 2014 Compass Distinguished Achievement Award
Ocean Business 2015 Trade Show Sold Out
EIVA Appointed Authorised to Service VideoRay ROVs
Increasing Flexibility and Reducing Costs of Particle Tracking
Subsea Metrology Combining Acoustics and Photogrammetry
comments powered by Disqus
Bathymetry of the Western Australian Sea Floor
Bathymetry is the study and mapping of seafloor topography. It involves obtaining measurements of the depth of the ocean and is equivalent to mapping topography on land. The bathymetric survey will produce a map that charts the contours, depths and hardness of the ocean floor. The video by Geoscience Australia is not the result of the MH370 survey, but demonstrates the type of information and detail that is being gathered.