We will deploy a sub-surface mooring at the 100-m isobath on the western flank of the
canyon (see Figure X) equipped with an upward-looking 300 kHz RDI ADCP, a Seabird
MicroCAT CTD, and a RBR Ttide bottom pressure recorder. This robust mooring design
(Figure X) has been used successfully by the PIs over multiple years on ice-covered
Arctic shelves. The mooring is designed to capture details of the full-water column
vertical current structure, temperature-salinity evolution, ice thickness and velocities
(from bottom-track pings off the ADCP), and tides at high temporal resolution. The
mooring is capable of sampling over a full calendar year.
Figure X. Schematic of the sub-surface mooring design. We propose to add a bottom
pressure recorder (located next to the MicroCAT CTD) to collect high-frequency tidal
data.