As
part of the Bering Strait project funded by
NSF-AON (Arctic Observing Network), in July
2017 a team of US scientists undertook a ~ 8
day cruise in the Bering Strait and southern
Chukchi Sea region on the US vessel Norseman
II, operated by Norseman Maritime Charters.
The primary goals of the expedition were:
1) recovery of 3 moorings carrying physical
oceanographic (Woodgate-NSF) and whale
acoustic (Stafford) instrumentation. These
moorings were deployed in the Bering Strait
region in 2016 from the Norseman II. The
funding for the physical oceanographic
components of these moorings comes from
NSF-AON.
2) deployment of 3 moorings in the Bering
Strait region, carrying physical oceanographic
(Woodgate) and whale acoustic (Stafford)
instrumentation. The funding for the physical
oceanographic components of these moorings
comes from NSF-AON.
3) accompanying CTD sections (without water
sampling).
4) collection of accompanying ship's underway
data (surface water properties, ADCP,
meteorological data).
5) deployment of an autonomous glider in the
southern Chukchi Sea (Statscewich).
6) deployment of two IABP (International Arctic Buoy
Program) drifters (Rigor).
Due to mostly reasonably calm, clear weather, all
moorings were safely recovered and redeployed, and a
total of 342 CTD casts (on 19 lines) were
taken. For full details, and preliminary
results, see:
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Figure:
Ship-track, blue. Mooring sites, black.
CTD stations, red. Glider deployment site,
yellow. Arrows indicate direction of
travel (on inset below, blue during mooring
operations before CTD survey, green during CTD
survey). Depth contours every 10m from the
International Bathymetric Chart of the Arctic Ocean
(IBCAO) [Jakobsson et al., 2000]. Lower panels
give detail of strait region at the start (left) and
end (right) of the cruise. See cruise report
for daily detail.
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