CTD casts (temperature, salinity, oxygen, fluorescence, turbidity, SUNA Nitrate), and nutrient bottle samples collected from Norseman II in Bering Strait, Southern Chukchi Sea, and Northern Bering Sea from 2025-07-03 to 2025-07-09 (NCEI Accession 0312789)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: February 28, 2026 | Last Modified: 2026-02-24T00:00:00.000+00:00

This is an archive of CTD data from the 2025 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 ~ 9 day cruise - on the US vessel Norseman II - from 2nd-10th July 2025 - sailing from and to Nome, Alaska, USA - to the Bering Strait, southern Chukchi Sea, and northern Bering 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 162 casts were taken and are included in this archive. Water samples were taken for salinity (6) and nutrients (194) from the CTD rosette. Nutrient data are included in this archive. Salinity samples were only to confirm sensor/bottle discrepancies but are included in the cruise report (copy 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, southern Chukchi Sea and northern Bering 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. 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, doi: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

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description	This is an archive of CTD data from the 2025 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 ~ 9 day cruise - on the US vessel Norseman II - from 2nd-10th July 2025 - sailing from and to Nome, Alaska, USA - to the Bering Strait, southern Chukchi Sea, and northern Bering 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 162 casts were taken and are included in this archive. Water samples were taken for salinity (6) and nutrients (194) from the CTD rosette. Nutrient data are included in this archive. Salinity samples were only to confirm sensor/bottle discrepancies but are included in the cruise report (copy 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, southern Chukchi Sea and northern Bering 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. 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, doi: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
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identifier	gov.noaa.nodc:0312789
issued	2026-02-24T00:00:00.000+00:00
keyword	[ "0312789", "FLUORESCENCE", "NITRATE", "NUTRIENTS", "OXYGEN", "SALINITY", "turbidity", "WATER TEMPERATURE", "CTD", "laboratory analysis", "Niskin bottle", "chemical", "in situ", "physical", "profile", "Norseman II", "University of Washington, Applied Physics Laboratory", "University of Washington", "Arctic Observing Network (AON)", "Bering Sea", "Chukchi Sea", "oceanography", "UWA/APL > Applied Physics Laboratory, University of Washington", "AON > Arctic Observing Network", "Arctic Observing Network (AON)", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN", "EARTH SCIENCE > OCEANS > OCEAN OPTICS > FLUORESCENCE", "EARTH SCIENCE > OCEANS > OCEAN OPTICS > TURBIDITY", "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE", "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY", "CTD casts (temperature, salinity, oxygen, fluorescence, turbidity, SUNA Nitrate), and nutrient bottle samples", "CTD > Conductivity, Temperature, Depth", "NISKIN BOTTLES", "Seabird SBE911p with SBE3F, SBE4C, SBE43, Wetlabs FLNTURT, and SUNA Nitrate sensor, plus bottle samples", "Ships", "NORSEMAN II (call sign: WDD6688, ICES code: 32QO, 2007-)", "OCEAN > ARCTIC OCEAN > CHUKCHI SEA", "OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > BERING SEA", "Bering Strait", "Northern Bering Sea", "Southern Chukchi Sea", "6RPLWW" ]
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modified	2026-02-24T00:00:00.000+00:00
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references	[ "https://doi.org/10.5670/oceanog.2015.57", "https://psc.apl.washington.edu/HLD/Bstrait/bstrait.html" ]
rights	otherRestrictions
spatial	-165.437,64.496,-169.108,66.507
temporal	2025-07-03T00:00:00+00:00/2025-07-09T00:00:00+00:00
title	CTD casts (temperature, salinity, oxygen, fluorescence, turbidity, SUNA Nitrate), and nutrient bottle samples collected from Norseman II in Bering Strait, Southern Chukchi Sea, and Northern Bering Sea from 2025-07-03 to 2025-07-09 (NCEI Accession 0312789)

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