This dataset contains water temperature, salinity, oxygen, fluorescence, and turbidity taken by CTD from the research vessel Norseman II in Bering Strait during the 2021 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 vessel Norseman II - from 7th-17th July 2021 - 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 276 casts were taken and are included in this archive. Water samples were taken for trace metals during this cruise using a separate pumping system (lead: Laramie Jensen). 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.

CTD profile data (97 casts) were collected in the northeast Bering Sea and Chukchi Sea from the Fishing Vessel Bristol Explorer (cruise BE1301) during the Arctic Ecosystem Integrated Survey (Arctic EIS) pelagic fish survey, August 6 to September 27, 2013. CTD casts occurred at trawl survey stations and along transactions ~15 nm apart. Northern Bering Sea (NBS), stations were from 60°N and Bering Strait; Chukchi Sea stations sat between the Bering Strait and 72.5°N. The cruise was split into 3 legs, with leg 1 sampling in the southern Chukchi Sea, leg 2 in the northern Chukchi Sea and leg 3 in the NBS. Profile data and water samples were collected by NOAA, Alaska Fisheries Science Center (AFSC) as a part of the Ecosystems & Fisheries-Oceanography Coordinated Investigations (EcoFOCI) program in collaboration with the Pacific Marine Environmental Laboratory (PMEL). Profile variables include temperature (°C), salinity, chlorophyll fluorescence (ugrams/l), oxygen concentration (umol/kg), transmission (percent), photosynthetic available radiation (PAR, microEinsteins/m^2 s) and calculated values Sigma-T (kg m-3) and oxygen percent saturation (percent). Fewer profile variables were collected on leg 1 due to failed primary CTD and use of backup that did not contain all sensors, limiting water sampling to 4 depth. The CTD issue was solved for legs 2 & 3. On leg 3 ship flooding caused damage to freezers and loss of some discrete nutrient samples and all discrete oxygen and chlorophyll samples (see included cruise report). This data set contains 1-meter-averaged water-column profile data. Profile data from CTD instruments were processed at NOAA/PMEL/EcoFOCI using standard techniques. CTD data contacts: Phyllis Stabeno, Jeanette Gann, Ryan McCabe, Calvin Mordy, Peggy Sullivan, Shaun Bell. Scientists with the National Oceanic and Atmospheric Administration (NOAA), Alaska Fisheries Science Center (AFSC); Auke Bay Laboratories Ecosystem Monitoring and Assessment (EMA); Arctic Ecosystem Integrated Survey (Arctic Eis); Pacific Marine Environmental Laboratory (PMEL) ; Ecosystems and Fisheries-Oceanography Coordinated Investigations (EcoFOCI); University of Washington, Cooperative Institute for Climate, Ocean and Ecosystem Studies (CICOES) participated. Data are in NetCDF. Longitudes are in degW.

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.

The IPHC conducts an annual longline fish survey on a 10x10 nautical mile grid from southern Oregon north to the Gulf of Alaska, out along the Aleutian Island chain, and into the Bering Sea in depths ranging from 30 to 500 m. Beginning in 2000, the IPHC conducted a pilot project looking at the practicality of collecting oceanographic profile data alongside fishery data at the longline survey stations. The project was expanded to stations off Oregon in 2007 and coast-wide in 2009. Profiles were taken at each station immediately prior to hauling the longline gear so that oceanographic data collection is coincident with the haul. The data collected are surface to depth profiles of pressure (depth), temperature, conductivity (salinity), dissolved oxygen, pH, and chlorophyll-a concentration.

CTD profile data (91 casts) were collected in the northern Bering, Chukchi, Beaufort Seas, and Arctic Ocean from the Research Vessel Ocean Starr (OS1901 Legs 1,2,3), August 6 to September 27, 2019. The research cruise was part of the Arctic Integrated Ecosystem Survey (Arctic IES) funded as part of the North Pacific Research Board (NPRB) Arctic Integrated Ecosystem Research Program (Arctic IERP). The program and research on this expedition were sponsored by NPRB and the Bureau of Ocean and Energy Management (BOEM), with in-kind support by the National Oceanic and Atmospheric Administration (NOAA, PMEL and AFSC). These data contribute to understanding how reductions in Arctic sea ice and associated changes in the physical environment influence the flow of energy through the ecosystems of the Chukchi and Beaufort Seas. The physical data are part of a wider range of data collected towards this effort. This year’s survey was notable in that there was no sea ice within the survey region from 72.5N in the Chukchi Sea into the nearshore regions of the Beaufort Sea and south to the Bering Strait. Ice was present in the northern regions of our survey area during surveys that occurred in 2012 and 2013. Additionally, sea surface temperatures were warmer than previous years ranging from 5.3°C (42°F) to 10.9°C (52°F); the coldest sea surface temperatures were found at the offshore Chukchi Slope stations, with the warmest found inshore between Icy Cape and Ledyard Bay. CTD data and water samples were collected by NOAA, PMEL Ecosystems & Fisheries-Oceanography Coordinated Investigations (EcoFOCI). Variables include dual temperatures (°C), dual salinity, chlorophyll fluorescence(ugrams/l), Photosynthetic Active Radiation (PAR, uEin m-2 s-1), oxygen concentration (umol/kg), and calculated values Sigma-T (kg m-3) and oxygen percent saturation (percent) This dataset contains 1-meter-averaged water-column profile data. Profile data from CTD instruments were processed at NOAA/PMEL/EcoFOCI using standard techniques. CTD data contacts: Phyllis Stabeno, Ryan McCabe, Calvin Mordy, Peggy Sullivan, Shaun Bell. Scientists from National Oceanic and Atmospheric Administration (NOAA), Pacific Marine Environmental Laboratory (PMEL), ; Ecosystems and Fisheries-Oceanography Coordinated Investigations (EcoFOCI); University of Washington, Cooperative Institute for Climate, Ocean, and Ecosystem Studies (CICOES); North Pacific Research Board (NPRB) Arctic Integrated Ecosystem Research Program (Arctic IERP); Bureau of Ocean and Energy Management (BOEM) particilated. Data are in NetCDF. Longitudes are in degW.

This dataset includes CTD and environmental data for four stations collected onboard R/V Weatherbird II cruise WB-0522 in the Gulf of Mexico from 2022-05-16 to 2022-05-19. The dataset includes 4 profiles/casts of temperature, salinity, conductivity, chlorophyll-a and colored dissolved organic matter fluorescence, turbidity, oxygen saturation, sound velocity, altimetry and Photosynthetically Available Radiation (PAR). R/V Weatherbird II cruise WB-0522 was led by chief scientists Dr. Patrick Schwing, Dr. Rebekka Larson, and Dr. Gregg Brooks. Processed data are in text format.

This is an archive of CTD data and Niskin bottle samples from the 2022 Bering Strait mooring cruise. The cruise was funded by the NSF-Arctic Observing Network grants: - PLR-1758565 (PIs: Woogate and Peralta-Ferriz). - PLR-2153942 (PIs: Woogate and Peralta-Ferriz). The data are from a ~ 12 day cruise - on the US vessel Norseman II - from 8th - 19th Sept 2022 - 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. This is an archive of both hydrographic and bottle data. A total of 111 science casts (125 including test casts) were taken and are included in this archive. Water samples were taken for salinity (20) and nutrients (169) from the CTD rosette and these data are included in this archive. A separate pumping system was used to take trace metal (and accompanying nutrient) samples during this cruise (lead: Laramie Jensen). These data are archived separately. Stations were taken in US waters near mooring locations and on sections in the Bering Strait and southern Chukchi Sea. See cruise report, accompanying event log and data headers for map, station locations, calibration, and processing details. The data are taken using an SBE9-11plus system, recording - pressure - temperature (dual system) - conductivity (dual system) - oxygen (dual system) - fluorescence - turbidity connected also to an - SUNA nitrate sensor, recording both internally and with the CTD data. A total of 169 samples were taken for nutrients, on 35 casts, to map nutrient properties in the Bering Strait and southern Chukchi Sea region. A total of 20 samples were taken for salinity on 5 casts, to check bottle firing protocols. For an overview of previous and on-going Bering Strait mooring work and details of the measurements and their interpretation, please see PI web site and suggested references in the Documentation. For queries, please contact: Rebecca Woodgate woodgate@uw.edu (206) 221-3268 Polar Science Center, Applied Physics Lab, University of Washington (UW) 1013 NE 40th, Seattle, WA 98105-6698 USA

This dataset contains water temperature, salinity, and other parameters taken by CTD during the 2018 Bering Strait mooring cruise. Data are in CNV format. The cruise was funded by the NSF-Arctic Observing Network grants: - PLR-1304052 (PIs: Woodgate, Heimbach and Nguyen), and - PLR-1758565 (PIs: Woodgate and Peralta-Ferriz). The data are from a ~ 10 day cruise on the US vessel Norseman II from 2018-08-10 to 2018-08-19 sailing from and to Nome, Alaska, USA to the Bering Strait and the Southern Chukchi Sea. The cruise was also to service oceanographic moorings in the strait and those data are archived separately. A total of 142 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, and 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.

This is an archive of CTD data from the 2016 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 2016 - 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 277 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 2024 Bering Strait mooring cruise. The cruise was funded by the NSF-Arctic Observing Network grants: - PLR-2153942 (PIs: Woodgate and Peralta-Ferriz). The data are from a ~ 11 day cruise - on the US vessel Norseman II - from 8th-18th July 2024 - 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. This is an archive of both hydrographic and bottle data. A total of 154 casts were taken and are included in this archive. Water samples were taken for salinity (6) and nutrients (195) from the CTD rosette. Nutrient data are included in this archive. Salinity samples were only to confirm sensor/bottle discrepancies and are not included in this archive. A separate pumping system was used to take trace metal (and accompanying nutrient) samples during this cruise (lead: Laramie Jensen). These data are archived separately. Stations were taken in US waters near mooring locations and on sections in the Bering Strait and southern Chukchi Sea. See cruise report, accompanying event log and data headers for map, station locations, calibration, and processing details. The data are taken using an SBE9-11plus system, recording - pressure - temperature (dual system) - conductivity (dual system) - oxygen (dual system) - fluorescence - turbidity connected also to an - SUNA nitrate sensor, recording both internally and with the CTD data. Bottle samples returned to the University of Washington (UW) for analysis post cruise.