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.
comments powered by Disqus
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
Okeanus to Represent MacArtney in Offshore Brazil
Geoscience Australia and the Search for MH370
Request for Proposals on Autonomous Technologies
New Sparker for UST21
Data Management Training Courses
QuickStitch Processing Software Powered by EIVA
Liquid Robotics in RBR Top 50 Robotics Companies
Success for 55th Marine Measurement Forum
Three Tidal Turbines Installed in Dutch Sea Defences
Views of Two Historic Shipwrecks in San Francisco
Generating Lat/Lon/Depth Files from Echoview
This video shows how to use Echoview to export a CSV file of the water depth as measured by an echosounder.