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OAS accession Detail for 0302481, meta_version: 7. Current meta_version is: 7
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accessions_id: 0302481 | archive
Title: Timeseries of temperature, salinity, ADCP velocity with ice track, nitrate, fluorescence, turbidity, dissolved oxygen collected from Bering Strait Moorings A2, A3, A4 in Bering Strait from 2023-07-07 to 2024-09-11 (NCEI Accession 0302481)
Abstract: This is an archive of data from moorings deployed in Bering Strait from summer 2023 and to summer 2024.

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 2023 (4th-14th July), a ~ 11 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 2024 (8th-18th September), 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 2023, 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 2024, 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.
Date received: 20250312
Start date: 20230707
End date: 20240911
Seanames: Bering Sea
West boundary: -168.95
East boundary: -168.263
North boundary: 66.327
South boundary: 65.746
Observation types: chemical, in situ, physical
Instrument types: ADCP, CTD - moored CTD
Datatypes: CURRENT SPEED - EAST/WEST COMPONENT (U), CURRENT SPEED - NORTH/SOUTH COMPONENT (V), DISSOLVED OXYGEN, FLUORESCENCE, NITRATE, SALINITY, turbidity, WATER TEMPERATURE
Submitter: Woodgate, Dr. Rebecca A.
Submitting institution: University of Washington
Collecting institutions: University of Washington; Applied Physics Laboratory; Polar Science Center
Contributing projects: AON
Platforms: moorings (pid: 2565), Norseman II (32QO)
Number of observations:
Supplementary information: 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.

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ID Deployed Latitude Longitude Instrument S/N Time Inst. Water
in Year (N) (W) Int. Depth Depth
--------------------------------------------------------------------------
A2-23 2023 65 46.86 168 34.06 ISCAT 24305 NR 16m 56m
mooring recovered by dragging ISCAT-Logger 04 30min ... 56m
300kHz-ADCP 10926 30min 46m 56m
SBE37-ODO 24442 60min 49m 56m
FLNTUSB 7567 60min 49m 56m
SUNA 1919 60min 49m 56m
SBE37 23132 60min 50m 56m

A3-23 2023 66 19.60 168 56.94 Upper ISCAT 22408 NR 7m 58m
mooring recovered by dragging Lower ISCAT 20128 NR 15m 58m
ISCAT-Logger 23 30min ... 58m
300kHz-ADCP 13758 30min 43m 58m
SBE37 24434 60min 43m 58m
SBE37-ODO 24445 60min 46m 58m
FLNTUSB 1261 60min 46m 58m
SUNA 1917 60min 46m 58m
*SOUNDTRAP 6079 - 49m 58m

A4-23 2023 65 44.76 168 15.76 ISCAT 24306 5min 7m 49m
mooring recovered by dragging ISCAT-Logger 07 30min ... 49m
300kHz-ADCP 2332 30min 37m 49m
SBE37 24433 60min 41m 49m
FLNTUSB 7573 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 floatation 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
SBE37-ODO - Seabird SBE37 Temperature Salinity Pressure recorder with SBE63 Dissolved oxygen sensor
FLNTUSB - Wetlabs Fluorescence Turbidity sensor
SUNA - Seabird SUNA V2 Nitrate sensor
Instruments with data not included here:
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
AARI-CM&CTD - Current meter and CTD from AARI (Arctic and Antarctic Research Institute, Russia), PI: Igor Lavrenov, AARI
ISUS - ISUS Nitrate sensor, PI: Terry Whitledge, UAF
AURAL M2* - Aural Marine Mammal Acoustic Recorder, PI: Kate Stafford, UW
APL Marine Rec* - APL Marine Recorder, PI: Kate Stafford, UW.
Soundtrap - APL Marine Mammal Recorder, PI: Kate Stafford UW.

Each data file contains the data from one instrument-year - the listed year in the mooring name is the year in which the mooring was deployed.

For non-ADCP instruments, calibrated data are recorded in one file per instrument per year, with naming convention:
BeringStrait_yyyy_ID_III_#####.ttt
yyyy=Deployment year; ID=mooring ID; III=instrument type; #####=serial number; ttt=indicates calibration, with .pre=pre-deployment calibration used, .ppp=pre and post deployment calibrations merged. For some instruments (e.g., SBE16,37, SUNA, ADCP, raw data files and calibration
information are also included. See file listings.

For the ADCPs, there are multiple files per instrument.
BeringStrait_yyyy__ID_#####ADCPraw.000 = Binary download from the ADCP (see notes below for multiple .000 files)
BeringStrait_yyyy__ID_#####_ADCPdeploytests.txt = pre deployment tests
BeringStrait_yyyy__ID_#####_ADCPrecoverytest.txt = post deployment tests
The remainder are ASCII conversions of the data, corrected for clock drift and magnetic declination.
BeringStrait_yyyy__ID_#####.btm = ASCII bottom track data
(including ice range and velocity)
BeringStrait_yyyy__ID_#####.ins = ASCII instrument data
(e.g. heading, pitch, roll, temperature)
BeringStrait_yyyy__ID_#####_bin01.rdat = ASCII water velocity data in Bin 1
BeringStrait_yyyy__ID_#####.bin02.rdat = ASCII water velocity data in Bin 2
etc. (Bin depths are given in the data files)
Header information is included in each data file.

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For details of the measurements and their interpretation,as well as relevant papers please see references in the Documentation section.

For an overview of cruises and project, please see:
http://psc.apl.washington.edu/BeringStrait.html

For queries, please contact:
Rebecca Woodgate woodgate@uw.edu (206) 221-3268
Polar Science Center, Applied Physics Lab, University of Washington 1013 NE 40th, Seattle, WA 98105-6698 USA
Availability date:
Metadata version: 7
Keydate: 2025-03-13 14:47:43+00
Editdate: 2025-04-18 19:58:58+00