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OAS accession Detail for 0253624, meta_version: 5. Current meta_version is: 6
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Title: Water temperature, salinity, velocity, including ADCP ice tracking, collected from Bering Strait Moorings A2, A3, A4 in Bering Strait from 2019-09-07 to 2021-07-09 (NCEI Accession 0253624)
Abstract: This is an archive of data from moorings deployed in Bering Strait from summer 2019 and summer 2020 to summer 2021.

Mooring deployments were funded by the NSF-Arctic Observing Network award PLR-1758565 (PIs: Woodgate and Peralta-Ferriz).

The mooring work required 3 dedicated cruises:
- in 2019 (5th - 15th September), a ~ 11 day cruise on the US vessel Norseman2 deployed the 2019 moorings. Some CTD sections were run on this cruise, and those data are archived separately.
- in 2020 (1st - 18th September), a ~ 19 day cruise on the US vessel Norseman2 deployed the 2020 moorings. Some CTD sections were run on this cruise, and those data are archived separately.
- in 2021 (7th - 17th July), a ~ 11 day cruise on the US vessel Norseman2 recovered all the moorings. Some CTD sections were run on this cruise, and those data are archived separately.

In both 2019 and 2020, a total of three moorings were deployed (each year):
- 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. Although the 2019 moorings would normally have been recovered in 2020, the global COVID-19 pandemic prevented this. Instead, the 2020 cruise only deployed a further 3 new moorings (each ~ 400m west of their usual positions). All 6 moorings were recovered in 2021.

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: 20220526
Start date: 20190907
End date: 20210709
Seanames: Bering Sea, Chukchi Sea
West boundary: -168.951
East boundary: -168.263
North boundary: 66.327
South boundary: 65.746
Observation types: derived products, in situ, physical
Instrument types: ADCP, CTD - moored CTD
Datatypes: CURRENT SPEED - EAST/WEST COMPONENT (U), CURRENT SPEED - NORTH/SOUTH COMPONENT (V), ICE, SALINITY, WATER TEMPERATURE
Submitter: Woodgate, Dr. Rebecca A.
Submitting institution: University of Washington
Collecting institutions: University of Washington; Applied Physics Laboratory
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.

12345678901234567890123456789012345678901234567890123456789012345678901234567
--------------------------------------------------------------------------
ID Deployed Latitude Longitude Instrument S/N Time Inst. Water
in Year (N) (W) Int. Depth Depth
--------------------------------------------------------------------------

A2-19 2019 65 46.86 168 34.07 ISCAT 20936 NR 16m 56m
ISCAT-Logger 22 30min ... 56m
300kHz-ADCP 12845 30min 46m 56m
SBE16 2341 60min 50m 56m

A3-19 2019 66 19.60 168 57.05 Upper ISCAT 14906 NR 8m 57m
recovered by dragging Lower ISCAT 20129 NR 16m 57m
ISCAT-Logger 24 30min ... 57m
300kHz-ADCP 9397 30min 43m 57m
SBE16 1698 60min 44m 57m
AURAL M2* 268LF - 49m 57m

A4-19 2019 65 44.75 168 15.77 ISCAT 20935 5min 16m 48m
ISCAT-Logger 21 30min ... 48m
300kHz-ADCP 13756 30min 37m 48m
SBE16 1700 60min 41m 48m

A2-20 2020 65 46.86 168 34.60 300kHz-ADCP 10926 30min 46m 56m
SBE16 1226 60min 50m 56m

A3-20 2020 66 19.60 168 57.60 300kHz-ADCP 13758 30min 44m 59m
SBE16 1225 60min 44m 59m
AURAL M2* 280LF - 49m 59m

A4-20 2020 65 44.75 168 16.31 300kHz-ADCP 2234 30min 37m 50m
SBE16 0004 60min 41m 50m
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Depths are estimated from mooring design and pressure sensors where available, and are good to 1-2m.
NR=instrument not recovered ND=No data
Instruments with data included here:
ISCAT - SBE37IM in ice resistant float, telemetering data inductively to
a Logger below (system developed at APL-UW)
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
Instruments with data not included here:
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.

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 RCMs and SBEs, 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.
The SBE-16 and 37 hexidecimal files (unaltered from the download) are also
included, indicated by extension .hex or .asc

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, please see:

Woodgate, R.A., K.M.Stafford and F.G.Prahl (2015) A synthesis of year-round interdisciplinary mooring measurements in the Bering Strait (1990-2014) and the RUSALCA years (2004-2011), Oceanography 28(3):46-67, https://doi.org/10.5670/oceanog.2015.57

and

Woodgate, R.A., 2018, Increases in the Pacific inflow to the Arctic from 1990 to 2015, and insights into seasonal trends and driving mechanisms from year-round Bering Strait mooring data, Progress in Oceanography, 160, 124-154, https://doi.org/10.1016/j.pocean.2017.12.007.

Please use both 2015 and 2018 citations for these data.
Data are in text formats.
Availability date:
Metadata version: 5
Keydate: 2022-05-31 14:48:28+00
Editdate: 2024-09-10 14:42:16+00