Bering Strait Moorings 2022-2023 This is an archive of data from moorings deployed in Bering Strait from summer 2022 and to summer 2023. Mooring deployments were funded by the NSF-Arctic Observing Network award PLR-2153942 (PIs: Woodgate and Peralta-Ferriz). The mooring work required 2 dedicated cruises: - in 2022 (8th-19th September), a ~ 12 day cruise on the US vessel Norseman2 deployed the moorings. Some CTD sections were run on this cruise, and those data are archived separately. - in 2023 (4th-14th July), a ~ 11 day cruise on the US vessel Norseman2 recovered the moorings. Some CTD sections were run on this cruise, and those data are archived separately. In 2022, a total of three moorings were deployed: - two moorings (A2 and A4) in the US channel of the strait, - one mooring (A3) at a site just north of the strait. In what follows, mooring names include a two digit suffix to represent year of deployment. In 2023, all three moorings were successfully recovered. Sites A2, and A3 were established in 1990. A2 and A3 have been occupied almost continuously (all years except 96-97) since then. Site A4 was established in 2001. Mooring location A2 is in the middle of the eastern (Alaskan side) channel. Mooring location A3 is just north of the strait, immediately east of the Russian-US EEZ (Exclusive Economic Zone) line. Experience has shown that site A3 samples both eastern and western channel water. Mooring location A4 is close to the Alaskan coast and allows measurement of the Alaskan Coastal Current. For an overview of previous and on-going Bering Strait mooring work, please see http://psc.apl.washington.edu/BeringStrait.html. Moorings carry a variety of instruments, listed in the table below. All records are year-round, sampling hourly or more frequently (Time Int. in table below). Data from instruments marked with * are not included in this archive. For access to these data, please contact the named PI in list below table. -------------------------------------------------------------------------- ID Deployed Latitude Longitude Instrument S/N Time Inst. Water in Year (N) (W) Int. Depth Depth -------------------------------------------------------------------------- A2-22 2022 65 46.85 168 34.10 ISCAT 24298 NR 16m 56m ISCAT-Logger 28 30min ... 56m 300kHz-ADCP 2234 30min 46m 56m SBE37-ODO 24443 60min 49m 56m FLNTUSB 7566 60min 49m 56m SUNA 1920 60min 49m 56m SBE16 1226 60min 50m 56m A3-22 2022 66 19.63 168 56.9 Upper ISCAT 20935 5min 7m/24m 58m dragged off position by ice Lower ISCAT 24297 5min 16m 58m on 19th April 2023 0100-1130 ISCAT-Logger 22 30min 58m 300kHz-ADCP 12845 30min 43m 58m SBE16 1225 60min 43m 58m SBE37-ODO 24444 60min 46m 58m FLNTUSB 1260 60min 46m 58m SUNA 1918 60min 46m 58m *SOUNDTRAP 7173 - 49m 58m A4-22 2022 65 44.74 168 15.78 ISCAT 24300 5min 16m 49m mooring recovered by dragging ISCAT-Logger 24 30min ... 49m 300kHz-ADCP 13756 30min 37m 49m SBE16 2341 60min 41m 49m FLNTUSB 7565 60min 41m 49m -------------------------------------------------------------------------- Depths are estimated from mooring design and pressure sensors where available, and are good to 1-2m. NR=instrument not recovered ND=No data Where ISCATS change recording depth when flotation is lost, both depths are given Instruments with data included here: ISCAT - SBE37IM in ice resistant float, telemetering data inductively to a Logger below (system developed at APL-UW). Logger data only used if SBE37s are not recovered. 300KHz-ADCP - 300kHz RDI/Teledyne Workhorse Acoustic Doppler Current Profiler SBE37 Microcat - Seabird SBE 37 Temperature Salinity Pressure recorder SBE16woptic - Seabird SBE16plus with optical data (including some or all of fluorescence, turbidity, transmissivity and PAR) - see headers SBE26p-BPG - Seabird SBE26plus Bottom Pressure Gauge RCM9Turb - Aanderaa RCM9 acoustic current meter with turbidity sensor RCM9LW - Aanderaa Lightweight RCM9 acoustic current meter SBE37-ODO - Seabird SBE37 Temperature Salinity Pressure