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Dataset

Switchyard UW CTD data

Description:The Switchyard project is a program to study circulation (sea ice and upper ocean) in the region between Alert (Ellesmere Island) and the North Pole, through a series of annual springtime hydrographic surveys, moorings, and sea ice analyses. These University of Washington (UW) Conductivity Temperature Depth (CTD) data were collected using a combination of helicopters and Twin Otter aircraft. In 2003-2006, data were collected by helicopter landing on the sea ice near a lead, where a small winch was used to lower a Seabird (SBE) 19 plus CTD (with dissolved oxygen sensor) down to 500m. Data were collected on a Soutwest-Nnortheast section across the continental slope centered at about 65W, 84N, and also at other locations in the Lincoln Sea as the opportunity presented itself. In 2007, poor weather conditions precluded safe helicopter operations and no UW CTD data were collected. Beginning in 2008 and continuing through 2012, a Twin Otter was used by the UW team to collect CTD profiles as deep as 1000m within a 500 km radius of Alert. In 2010 and 2011, Airborne Expendable CTD Probes were dropped into open leads from the Twin to record an ocean section across the north end of Nares Strait.
Progress:Completed - Dataset fully collected/analyzed.
Time Coverage:May 6, 2003 - May 16, 2012
Northernmost Latitude:87 degrees
Southernmost Latitude:82 degrees
Westernmost Longitude:-95 degrees
Easternmost Longitude:-25 degrees
Metadata Contact(s):Michael Steele, mas@apl.washington.edu
Topic:Ocean and Sea Ice
Science Keywords:Oceans > Ocean Circulation > Fresh Water Flux
ISO Topic(s):oceans
Time Frequency(ies):Unknown
Location(s):Arctic Ocean
Data Type(s):Point
Platform(s):Aircraft
Instrument(s):CTD
Data Format(s):Other ASCII
Language:English
Use and Access Restrictions:

Date Created:2012-11-09 14:51:16
Date Last Updated:2013-12-20 13:15:54
Data Center:Advanced Cooperative Arctic Data and Information Service
More Like This Dataset:SwitchYard Bottle Data
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Sea Ice Motion in the Arctic Ocean Switchyard
Circulation in the Freshwater Switchyard of the Arctic Ocean: Helicopter CTD Profile Data 2003-2005
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