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.

This is an archive of data from moorings deployed in Bering Strait from summer 2013 to summer 2014. Mooring deployments were funded by the ONR award N00014-13-1-0468 (PI: Woodgate) with shiptime support from the concurrent NSF-AON awards (Award ARC0855748, PIs: Woodgate, Weingartner, Lindsay and Whitledge; and Award PLR-1304052, PIs: Woodgate, Heimbach and Nguyen), in collaboration with the NOAA RUSALCA (Russian-US Long Term Census of the Arctic) program. The mooring work required 2 dedicated cruises. In 2013 (3rd - 10th July), a ~ 8 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 2014 (30th June - 7th July), a ~ 8 day cruise on the US vessel Norseman2 deployed the moorings. Some CTD sections were run on this cruise, and those data are archived separately. For 2013 to 2014, a total of three moorings were deployed. Two moorings (A2 and A4) in the US channel of the strait and 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. 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 Alaska Coastal Current. For an overview of previous and on-going Bering Strait mooring work, please see http://psc.apl.washington.edu/BeringStrait.html.

This is an archive of data from US moorings deployed in the Bering Strait from summer 2010 to summer 2011. Moorings were also deployed for this period in Russian waters. This archive will be updated once these Russian data are available. Mooring deployments were funded by the NSF Arctic Observing Network (AON) award ARC-0855748 (PIs: Woodgate, Weingartner, Whitledge and Lindsay) with shiptime support from the NOAA RUSALCA (Russian-US Long Term Census of the Arctic) program. 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. All records are year-round, sampling hourly or more frequently. Please see the cruise report for details.

This is an archive of data from US moorings deployed in the Russian Channel of the Bering Strait from summer 2010 to summer 2012. The deployments were designed to be one year long (from summer 2010 to summer 2011), however clearance issues made it impossible to recover the moorings in summer 2011, and they remained in the water until recovery in August 2012. The extra-long deployment degrades data quality due to biofouling and battery issues. UW personnel were not included in the recovery operation, so little information is available re fouling, and no post-deployment checks were performed. Mooring deployments were funded by the NSF Arctic Observing Network (AON) award ARC-0855748 (PIs: Woodgate, Weingartner, Whitledge and Lindsay) with shiptime support from the NOAA RUSALCA (Russian-US Long Term Census of the Arctic) program. Moorings carry a variety of instruments, listed in the cruise report. All records are year-round, sampling hourly or more frequently (Time Int. in table below). Only two instruments (the SBE37s) ran until recovery in 2012 - the others have shorter records as detailed below. Data from instruments marked with * are not included in this archive. For access to those data, please contact the named PI. The 2010 Cruise report and available notes from the 2012 recoveries are included in this archive.

This is an archive of data from moorings deployed in Bering Strait from summer 2014 to summer 2015. Mooring deployments were funded by the NSF-Arctic Observing Network award PLR-1304052 (PI: Woodgate, Heimbach and Nguyen), in collaboration with the NOAA RUSALCA (Russian-US Long Term Census of the Arctic) program. For 2014 to 2015, a total of three moorings were deployed: two moorings (A2 and A4) in the US channel of the strait, and one mooring (A3) at a site just north of the strait. 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 Alaska Coastal Current.

This is an archive of CTD data (water temperature, salinity, dissolved oxygen, and others) from the 2019 Bering Strait mooring cruise. The cruise was funded by the NSF-Arctic Observing Network grant: - PLR-1758565 (PIs: Woodgate and Peralta-Ferriz). The data are from a ~ 10 day cruise - on the US research vessel Norseman II - from 5th-15th September 2019 - sailing from and to Nome, Alaska, USA - to the Bering Strait and southern Chukchi Sea. The cruise was also to service oceanographic moorings in the strait and those data are archived separately. A total of 438 casts were taken and are included in this archive. No water samples were taken during this cruise. Stations were taken in US waters near mooring locations and on sections in the Bering Strait and southern Chukchi Sea. See cruise report for map, station locations, calibration, and processing details. The data are taken using an SBE911p system, recording - pressure - temperature (dual system) - conductivity (dual system) - oxygen (dual system) - fluorescence - turbidity. For an overview of previous and on-going Bering Strait mooring work, please see http://psc.apl.washington.edu/BeringStrait.html. 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 Please cite that reference for the data. 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 Data are in text (CNV) format.

This archive is of data from 150 CTD casts taken during the 2013 Norseman II cruise to the Bering Strait. For positions, see file headers or the cruise report accompanying these data. Data were preliminary processed at sea, as per cruise report, and bottle files were obtained from this processing. Subsequently, significant issues were found with the data as regards to lack of reliability of salinity and oxygen on the downcasts. A reprocessing attempts to address these issues. (Bottle data were not reprocessed.) This archive includes: 1) the raw data files (.hdr, .hex. and .XMLCON) for each cast, so the user may reprocess the data to their own standards, 2) 2db average UPCAST data for each cast, as per Oct 2015 data processing. As will be discussed below, these data provide (we believe) the most reliable salinity and oxygen data (although note no oxygen or salinity samples were taken for validation), 3) the 2db resolution reflects uncertainty in the depth of the data as the upcast data are being used, 4) casts with particularly suspect salinity data at times of sharp temperature gradients (Casts 83, 90,91,94,100,101,103) are placed in a subdirectory, and 5) the .ros and .btl bottle data as obtained from the processing at sea. We encourage those seeking parameters to match bottle samples to consider also the 2db averaged cast data. A summary of know problems include: 1) salinity values at times of sharp temperature gradient and 2) salinity and oxygen values on the downcasts. This work was funded by the National Science Foundation Office of Polar Programs, as part of the Arctic Observing Network, grant ARC 0855748, "An Ocean Observing System for the Bering Strait, the Pacific Gateway to the Arctic - an integral part of the Arctic Observing Network" The PIs are Rebecca Woodgate (UW), Tom Weingartner (UAF), Terry Whitledge (UAF) and Ron Lindsay (UW) (UW=University of Washington, Seattle; UAF=University of Alaska, Fairbanks).

This is an archive of data from moorings deployed in the US waters of the Bering Strait from summer 2011 to summer 2013 (with mooring servicing in summer 2012). For 2011 to 2012, a total of 8 moorings were deployed. Mooring deployments were funded by the NSF Arctic Observing Network (AON) award ARC-0855748 (PIs: Woodgate, Weingartner, Whitledge and Lindsay) with shiptime support from the NOAA RUSALCA (Russian-US Long Term Census of the Arctic) program. 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. All records are year-round, sampling hourly or more frequently. See the cruise report for details on the instruments used and sampling methods.

This is an archive of CTD data from the 2017 Bering Strait mooring cruise. The cruise was funded by the NSF-Arctic Observing Network grants: - PLR-1304052 (PIs: Woodgate, Heimbach and Nguyen) The data are from a ~ 9 day cruise - on the US vessel Norseman II - from 7th-15th July 2017 - sailing from and to Nome, Alaska, USA - to the Bering Strait and southern Chukchi Sea. The cruise was also to service oceanographic moorings in the strait and those data are archived separately. A total of 342 casts were taken and are included in this archive. No water samples were taken during this cruise. Stations were taken in US waters near mooring locations and on sections in the Bering Strait and southern Chukchi Sea. See cruise report for map, station locations, calibration, and processing details. The data are taken using an SBE911p system, recording - pressure - temperature (dual system) - conductivity (dual system) - oxygen (dual system) - fluorescence - turbidity. For an overview of previous and on-going Bering Strait mooring work, please see http://psc.apl.washington.edu/BeringStrait.html. 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 Please cite that reference for the data. 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 Data are in CNV format.

This is an archive of CTD data from the 2015 Bering Strait mooring cruise. The cruise was funded by the NSF-Arctic Observing Network grant: - PLR-1304052 (PIs: Woodgate, Heimbach and Nguyen) The data are from a ~ 9 day cruise - on the US vessel Norseman II - from 1st-9th July 2015 - sailing from and to Nome, Alaska, USA - to the Bering Strait and southern Chukchi Sea. The cruise was also to service oceanographic moorings in the strait and those data are archived separately. A total of 258 casts were taken and are included in this archive. No water samples were taken during this cruise. Stations were taken in US waters near mooring locations and on sections in the Bering Strait and southern Chukchi Sea. See cruise report for map, station locations, calibration, and processing details. The data are taken using an SBE911p system, recording - pressure - temperature (dual system) - conductivity (dual system) - oxygen (dual system) - fluorescence - turbidity. For an overview of previous and on-going Bering Strait mooring work, please see http://psc.apl.washington.edu/BeringStrait.html. 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 Please cite that reference for the data. 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 Data are in CNV format.