This CTD and Niskin bottle data set, consisting of 17 casts, was collected in the Chukchi and Bering Seas from the F/V Aquila (cruise AQ15-01, September 8 - 28, 2015). The cruise was funded by DOI Bureau of Ocean Energy Management (BOEM) through the NOAA National Marine Mammal Laboratory. CTD operations on this cruise were managed by EcoFOCI personnel from NOAA/PMEL. Profile data from CTD instruments were processed at NOAA/PMEL/EcoFOCI using standard techniques. Data from bottle samples include phosphate, silicate, nitrate, nitrite and ammonium. Profile data are averaged to a 1-meter grid, with missing data listed as NaN. Salinity was calculated (PSS-78), from conductivity and temperature (ITS90). Sigma-t was calculated from primary (channel 1) temperature and salinity. Nutrient samples were analyzed according to the methods of Gordon et al, 1993 and Mantoura, Woodward, 1983 (see references in metadata). Samples were collected in 50 ml high-density polyethylene bottles that were rinsed first with 10% HCl prior to each station, and rinsed at least three times with sample before filling. Some samples were refrigerated for 3-12 hours prior to analysis, and some frozen for later analysis. CTD data contact: Phyllis Stabeno, Peggy Sullivan, Shaun Bell, Calvin Mordy (nutrients). Cruise was performed for ARCWEST, CHAOZ-X 2015 Projects by BOEM, NOAA NMML, PMEL and EcoFOCI participants. Data are in CSV format. Longitude is in deg_West.

This CTD and Niskin bottle data set, consisting of 54 casts, was collected in the Chukchi and Bering Sea areas from the F/V Aquila (AQ13-01, August 23 - September 14, 2013) for CHukchi Acoustic, Oceanographic, and Zooplankton (CHAOZ-X) 2013 and ARCWEST Programs. The cruise was funded by DOI Bureau of Ocean Energy Management (BOEM) through the NOAA National Marine Mammal Laboratory. CTD operations on this cruise were managed by EcoFOCI personnel from NOAA/PMEL. Profile data from CTD instruments were processed at NOAA/PMEL/EcoFOCI using standard techniques. Data from bottle samples include phosphate, silicate, nitrate, nitrite and ammonium. Profile data are averaged to a 1-meter grid, with missing data listed as 1e+35. Salinity was calculated (PSS-78), from conductivity and temperature (ITS90). Sigma-t was calculated from primary temperature and salinity. Nutrient samples were analyzed according to the methods of Gordon et al, 1993 and Mantoura, Woodward, 1983 (see references below). Samples were collected in 50 ml high-density polyethylene bottles that were rinsed first with 10% HCl prior to each station, and rinsed at least three times with sample before filling. Some samples were refrigerated for 3-12 hours prior to analysis, and some frozen for later analysis. CTD data contact: Phyllis Stabeno, Peggy Sullivan, Shaun Bell, Calvin Mordy (nutrients). Cruise was conducted and funded by NOAA's National Marine Mammal Laboratory (NMML), Alaska Fisheries Science Center (AFSC), Pacific Marine Environmental Laboratory (PMEL), US Bureau of Ocean Energy Management (BOEM), and Ecosystems & Fisheries-Oceanography (EcoFOCI, a joint research program between AFSC and PMEL). Data are in CSV format, cruise report is in PDF.

This CTD data set, consisting of 86 casts, was collected in the Chukchi Sea cruise from the F/V Aquila (AQ14-01, September 23 - October 19, 2014). The cruise was funded by U.S. Department of the Interior Bureau of Ocean Energy Management (BOEM) through the NOAA National Marine Mammal Laboratory. It was conducted for CHukchi Acoustic, Oceanographic, and Zooplankton (CHAOZ) and Arctic Whale Ecology Study (ARCWEST) Projects. CTD operations on this cruise were managed by EcoFOCI personnel from NOAA/PMEL. Profile data from CTD instruments were processed at NOAA/PMEL/EcoFOCI using standard techniques. Data from bottle samples include phosphate, silicate, nitrate, nitrite, ammonium, and chlorophyll. Discrete chlorophyll (bottle sample) data are submitted separately through NOAA/AFSC, Jeffrey M. Napp. Discrete nutrient (bottle sample) data are submitted separately through NOAA/PMEL, Calvin Mordy. Profile data are averaged to a 1-meter grid, with missing data listed as 1e+35. CTD data contact: Phyllis Stabeno, Peggy Sullivan, Shaun Bell. Cruise was conducted and funded by NOAA's National Marine Mammal Laboratory (NMML), Alaska Fisheries Science Center (AFSC), Pacific Marine Environmental Laboratory (PMEL), US Bureau of Ocean Energy Management (BOEM), and Ecosystems & Fisheries-Oceanography (EcoFOCI, a joint research program between AFSC and PMEL). Users should note that station longitude is in DEG_WEST in the data files. Data are in NetCDF.

This dataset includes biological, chemical, discrete sample, physical and profile data collected from NATHANIEL B. PALMER in the Arctic Ocean, Beaufort Sea and Bering Sea from 2003-07-05 to 2003-08-20 and retrieved during cruise CARINA_320620030705. These data include AMMONIUM, CHLOROPHYLL A, Chromophoric Dissolved Organic Matter (CDOM), DISSOLVED ORGANIC CARBON, DISSOLVED OXYGEN, FLUORESCENCE, HYDROSTATIC PRESSURE, NITRATE, NITRITE, PHAEOPHYTIN, PHOSPHATE, PHOTOSYNTHETIC ACTIVE RADIATION (PAR), Potential temperature (theta), SALINITY, SILICATE, UREA and WATER TEMPERATURE. The instruments used to collect these data include CTD, PAR Sensor and bottle. These data were collected by Louis A. Codispoti of Horn Point Laboratory (UMCES HPL) and James H. Swift of Scripps Institution of Oceanography (SIO) as part of the CARINA/320620030705 dataset. The CARINA (CARbon dioxide IN the Atlantic Ocean) data synthesis project is an international collaborative effort of the EU IP CARBOOCEAN, and U.S. partners. It has produced a merged internally consistent dataset of open ocean subsurface measurements for biogeochemical investigations, in particular, studies involving the carbon system. The original focus area was the North Atlantic Ocean, but over time the geographic extent expanded and CARINA now includes data from the entire Atlantic, the Arctic Ocean, and the Southern Ocean.

This dataset includes chemical, discrete sample, physical and profile data collected from POLARSTERN in the Arctic Ocean, Kara Sea and Laptev (or Nordenskjold) Sea from 1995-07-07 to 1995-09-20. These data include AMMONIUM (NH4), CHLOROFLUOROCARBON-11 (CFC-11), CHLOROFLUOROCARBON-113 (CFC-113), CHLOROFLUOROCARBON-12 (CFC-12), DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, NITRATE, NITRITE, Potential temperature (theta), RADIUM ISOTOPES, SALINITY, TOTAL ALKALINITY (TA), WATER TEMPERATURE, pH, phosphate and silicate. The instruments used to collect these data include CTD and bottle. These data were collected by Leif G. Anderson of University of Gothenburg (GU) as part of the CARINA_06AQ19950707 dataset. CDIAC associated the following cruise ID(s) with this dataset: ARK-XI/1 and CARINA_06AQ19950707 The CARINA (CARbon dioxide IN the Atlantic Ocean) data synthesis project is an international collaborative effort of the EU IP CARBOOCEAN, and U.S. partners. It has produced a merged internally consistent dataset of open ocean subsurface measurements for biogeochemical investigations, in particular, studies involving the carbon system. The original focus area was the North Atlantic Ocean, but over time the geographic extent expanded and CARINA now includes data from the entire Atlantic, the Arctic Ocean, and the Southern Ocean.

This CTD and Niskin bottle data set, consisting of 128 physical oceanography and extensive chemistry casts, was collected in the Chukchi Sea cruise from the NOAA Ship Ronald H. Brown (cruise RB15-05, August 8 - September 4, 2015) for CHukchi Acoustic, Oceanographic, and Zooplankton (CHAOZ) 2015 campaign. The cruise was funded by DOI Bureau of Ocean Energy Management (BOEM) through the NOAA National Marine Mammal Laboratory. CTD operations on this cruise were managed by EcoFOCI personnel from NOAA/PMEL. Profile data from CTD instruments were processed at NOAA/PMEL/EcoFOCI using standard techniques. Data from bottle samples include phosphate, silicate, nitrate, nitrite, ammonium, and chlorophyll. Profile data are averaged to a 1-meter grid, with missing data listed as 1e+35. Eight CTD casts, c119 through c126 are at stations along DBO-3 line (stations 3.1 to 3.8). The DBO-3 region is near Point Hope, Alaska. Eight CTD casts are along the DBO-5 line as such: c088 at DBO-5.1, c089 and c062 at DBO-5.3, c061 at DBO-5.4, c090 at DBO-5.5, c059 at DBO-5.6, c091 at DBO-5.7, and c092 at DBO-5.9. The DBO-5 region is near Barrow, Alaska. CTD data contact: Phyllis Stabeno, Peggy Sullivan, Shaun Bell. Cruise was conducted and funded by NOAA's National Marine Mammal Laboratory (NMML), Alaska Fisheries Science Center (AFSC), Pacific Marine Environmental Laboratory (PMEL), US Bureau of Ocean Energy Management (BOEM), and Ecosystems & Fisheries-Oceanography (EcoFOCI, a joint research program between AFSC and PMEL). Data are in CSV format.

This CTD data set, consisting of 70 casts, was collected in the Chukchi Sea ice cruise AQ12-01 from the fishing vessel Aquila (August 12 - September 6, 2012). The cruise was funded by DOI Bureau of Ocean Energy Management (BOEM) through the NOAA National Marine Mammal Laboratory. CTD operations on this cruise were managed by EcoFOCI personnel from NOAA/PMEL. Profile data from CTD instruments were processed at NOAA/PMEL/EcoFOCI using standard techniques. Data from bottle samples include phosphate, silicate, nitrate, nitrite, ammonium, and chlorophyll. Discrete chlorophyll (bottle sample) data are submitted separately through NOAA/AFSC, Jeffrey M. Napp. Data files are on a 1-meter grid and combine both averaged CTD profile data, and nutrient bottle samples where missing data are listed as 1e+35. CTD data contact: Phyllis Stabeno, Peggy Sullivan. Nutrient bottle data contact: Calvin Mordy. Data are in CSV format.

This CTD data set, consisting of 70 casts, was collected in the Chukchi Sea ice cruise AQ12-01 from the fishing vessel Aquila (August 12 - September 6, 2012). The cruise was funded by DOI Bureau of Ocean Energy Management (BOEM) through the NOAA National Marine Mammal Laboratory. CTD operations on this cruise were managed by EcoFOCI personnel from NOAA/PMEL. Profile data from CTD instruments were processed at NOAA/PMEL/EcoFOCI using standard techniques. Data from bottle samples include phosphate, silicate, nitrate, nitrite, ammonium, and chlorophyll. Discrete chlorophyll (bottle sample) data are submitted separately through NOAA/AFSC, Jeffrey M. Napp. Data files are on a 1-meter grid and combine both averaged CTD profile data, and nutrient bottle samples where missing data are listed as 1e+35. CTD data contact: Phyllis Stabeno, Peggy Sullivan. Nutrient bottle data contact: Calvin Mordy. Data are in CSV format.

This dataset contains water temperature, salinity, marine chemistry, and other data collected by SBE 911 plus conductivity-temperature-depth (CTD) and Niskin bottles from R/V Mirai, cruise MR20-05C, in the Arctic Ocean, Bering Sea, and North Pacific Ocean. Data units are specified in corresponding "Format_Information.txt" files. This dataset is U.S. State Department MSR RATS U2020-004. Data are in csv, xls, text, and image formats. Reports are in PDF.

This dataset contains temperature and salinity data collected in the Chukchi Sea during the 7 August - 22 August 2017 Arctic Marine Biodiversity Observing Network (AMBON) research cruise. The dataset consists of bottle samples and CTD data. The data provides information on important Arctic Chukchi Sea ecosystem parameters, including temperature, salinity, pressure, and fluorescence as an index of phytoplankton biomass. In aggregate these variables are basic descriptors of the water masses entering the Chukchi Sea from the Pacific through the Bering Strait. The dataset consists of three files. - AMBON2017_CTDprofiles.ascii (also in csv and netcdf) - AMBON2017.hdr - AMBON2017_ctdBottleData_L2_v1.csv The first file is a ASCII file consisting of Seabird SBE55 CTD measurements from the depths at which the Niskin bottles were tripped; the file is intended to complement the file named 'AMBON 2017 bottle file new- Nutrients_chlorophyll bottle file.csv' in the Arctic Marine Biodiversity Observing Network (AMBON): Water column and benthic processes project (Cooper and Grebmeier). The second file is a ASCII file consisting of Seabird SBE55 Conductivity, Temperature, Depth (CTD) header information (named AMBON2017.hdr); the file accompanies the main CTD data file. The dataset describes each CTD cast number, location, bottom depth and other ancillary information. The third file is a ASCII file consisting of Seabird SBE55 Conductivity, Temperature, Depth (CTD) downcast data (AMBON2017_ctdBottleData_L2_v1.csv). Data were post calibrated and adjusted to bottled samples. Data are in ASCII, CSV, and NetCDF.