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Abstract:
Under the Developing Arctic Modeling and Observing Capabilities for Long-term
Environmental Studies (DAMOCLES) project, an acoustic Doppler current profiler
(ADCP) was deployed at the sill separating the Storfjorden in Svalbard
Archipelago and Storfjordrenna north of Storfjordbanken on the Barents Sea
shelf. Storfjorden, through its polynya activity, produces highly saline water
near the freezing temperature which fills the fjord to the sill level (115 m)
and initiates a gravity driven overflow. A self-contained 307.2 KHz broadband
Workhorse, Sentinel, RD Instruments ADCP was deployed at 76deg 58min N, 19deg
18min E at the 116 m isobath on 13th ofAugust 2006, 05:00 UTC. The deployment
was conducted from R.V. H\a kon Mosby, during the cruise HM2006 615. The
instrument was recovered during the first leg of HM2007 613 on the 15 of July
2007, 23:04 utc. The instrument was installed in an aluminum trawl-proof frame,
attached to a concrete block of 2.5x2.5x0.37 m dimensions. The ADCP sampled at
4-m depth cell size, averaging data (13 pings per ensemble) at 2 min intervals.
The first cell was centered at about 6 mab (meter above bottom). This dataset
consists of hourly averaged vertical profiles of current velocities as well as
temperature at the instrument depth.