Processing Steps |
- Parameter or Variable: Dissolved Inorganic Carbon; Abbreviation: DIC; Unit: umol kg-1; Observation type: Discrete sample; Measured or calculated: Measured; Sampling instrument: Discrete samples were drawn from a CTD Niskin; Analyzing instrument: Discrete samples were run on a VINDTA 3C; Detailed sampling and analyzing information: The Versatile INstrument for the Determination of Total inorganic and titration of Alkalinity (VINDTA) by Marianda paired with a Coulometer by UIC was used to conduct a coulomteric carbon dioxide titration with a carrier gas and a potentiometric alkalinity titration with an open cell.; Standardization description: The samples were standardized using Certified Reference Materials (CRMs) provided by Dr. A. Dickson of Scripps Institution of Oceanography.; Standardization frequency: Daily; CRM manufacturer: Dr. A. Dickson of Scripps Institution of Oceanography; CRM batch number: 88-173; Preservation method: Mercuric chloride; Preservative volume: 200 uL; Uncertainty: 4 umol kg-1; Quality flag convention: All data points are either accepted (retained) or rejected (deleted) during processing, so data are all defined as good.; Method reference: Mathis, J. T., Cross, J. N., Bates, N. R., Bradley Moran, S., Lomas, M. W., Mordy, C. W., and Stabeno, P. J. 2010. Seasonal distribution of dissolved inorganic carbon and net community production on the Bering Sea shelf, Biogeosciences, 7, 1769-1787, https://doi.org/10.5194/bg-7-1769-2010.; Researcher name: Natalie M. Monacci; Researcher institution: University of Alaska Fairbanks.
- Parameter or Variable: Total alkalinity; Abbreviation: TA; Unit: UMOL/KG; Observation type: Discrete sample; Measured or calculated: Measured; Sampling instrument: Discrete samples were drawn from a CTD Niskin; Analyzing instrument: Discrete samples were run on a VINDTA 3C; Type of titration: Potentiometric; Cell type (open or closed): Open; Curve fitting method: GRAN plot; Detailed sampling and analyzing information: The Versatile INstrument for the Determination of Total inorganic and titration of Alkalinity (VINDTA) by Marianda paired with a Coulometer by UIC was used to conduct a coulomteric carbon dioxide titration with a carrier gas and a potentiometric alkalinity titration with an open cell.; Standardization description: The samples were standardized using Certified Reference Materials (CRMs) provided by Dr. A. Dickson of Scripps Institution of Oceanography.; Standardization frequency: Daily; CRM manufacturer: Dr. A. Dickson of Scripps Institution of Oceanography; CRM batch number: 88-173; Preservation method: Mercuric chloride; Preservative volume: 200 uL; Uncertainty: 4 umol kg-1; Quality flag convention: All data points are either accepted (retained) or rejected (deleted) during processing, so data are all defined as good.; Method reference: Mathis, J. T., Cross, J. N., Bates, N. R., Bradley Moran, S., Lomas, M. W., Mordy, C. W., and Stabeno, P. J. 2010. Seasonal distribution of dissolved inorganic carbon and net community production on the Bering Sea shelf, Biogeosciences, 7, 1769-1787, https://doi.org/10.5194/bg-7-1769-2010.; Researcher name: Natalie M. Monacci; Researcher institution: University of Alaska Fairbanks.
- Parameter or Variable: Temperature; Abbreviation: CTDTMP; Unit: DEG C (ITS-90); Observation type: Measured; Analyzing instrument: Seabird CTD; Detailed sampling and analyzing information: A profiling CTD 911 was used to collect the conductivity, temperature, and depth data at each station. Data are processed using Seabird CTD software and calibration file. Post-processing at the University of Alaska Fairbanks includes filtering extreme outliers, extrapolation of values from the top value collected at ~3-5m to the surface. Each cast is visually reviewed for reasonableness and density inversions (greater than 0.02 sigma-t) caused by spurious measurements. This process is facilitated by comparison of the outputs of the 2 temperature and conductivity sensors. Profile data are bin-averaged to 1 meter.; Uncertainty: 0.001 DEG C; Quality flag convention: All data points are either accepted (retained) or rejected (deleted) during processing, so data are all defined as good.; Researcher name: Seth Danielson/Thomas Weingartner; Researcher institution: University of Alaska Fairbanks.
- Parameter or Variable: Salinity; Abbreviation: CTDSAL; Unit: PSU (PSS-78); Observation type: Calculated; Analyzing instrument: Seabird CTD; Detailed sampling and analyzing information: A profiling CTD 911 was used to collect the conductivity, temperature, and depth data at each station. Data are processed using Seabird CTD software and calibration file. Post-processing at the University of Alaska Fairbanks includes filtering extreme outliers, extrapolation of values from the top value collected at ~3-5m to the surface. Each cast is visually reviewed for reasonableness and density inversions (greater than 0.02 sigma-t) caused by spurious measurements. This process is facilitated by comparison of the outputs of the 2 temperature and conductivity sensors. Profile data are bin-averaged to 1 meter.; Uncertainty: 0.003 PSU; Quality flag convention: All data points are either accepted (retained) or rejected (deleted) during processing, so data are all defined as good.; Researcher name: Seth Danielson/Thomas Weingartner; Researcher institution: University of Alaska Fairbanks.
- Parameter or Variable: CTD Dissolved Oxygen; Abbreviation: CTDOXY; Unit: UMOL/KG; Observation type: Measured; Analyzing instrument: SBE 43; Detailed sampling and analyzing information: A profiling CTD 911 was used to collect the conductivity, temperature, and depth data at each station. A SBE 43 sensor was plumbed in to the 911 to measure dissolved oxygen. Data are processed using Seabird CTD software and calibration file. Post-processing at the University of Alaska Fairbanks includes filtering extreme outliers, extrapolation of values from the top value collected at ~3-5m to the surface. Each cast is visually reviewed for reasonableness and density inversions (greater than 0.02 sigma-t) caused by spurious measurements.; Uncertainty: 1 UMOL/KG; Quality flag convention: All data points are either accepted (retained) or rejected (deleted) during processing, so data are all defined as good.; Researcher name: Russel Hopcroft/Natalie Monacci; Researcher institution: University of Alaska Fairbanks.
- Parameter or Variable: Dissolved Oxygen; Abbreviation: OXYGEN; Unit: UMOL/KG; Observation type: Measured; Analyzing instrument: Langdon Amperometric Titrator; Uncertainty: 1 UMOL/KG; Quality flag convention: All data points are either accepted (retained) or rejected (deleted) during processing, so data are all defined as good.; Researcher name: Natalie Monacci; Researcher institution: University of Alaska Fairbanks.
- Parameter or Variable: Silicic acid; Abbreviation: SILICATE; Unit: UMOL/KG; Observation type: Measured; Sampling instrument: Discrete samples were drawn from a CTD Niskin; Analyzing instrument: Discrete samples were run on a continuous flow analyzer.; Detailed sampling and analyzing information: 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 frozen after collection until just prior to analysis. Nutrient samples were analyzed according to the methods of Gordon, et al (1993). Ammonium was measured using an indophenol blue method modified from Mantoura and Woodward (1983).; Quality flag convention: All data points are flagged (3) as questionable.; Method reference: Gordon, I., Jennings, J.C., Ross, J.A., Krest, J. 1993. A Suggested Protocol for Continuous Flow Automated Analysis of Seawater Nutrients (Phosphate, Nitrate, Nitrite and Silicic Acid) in the WOCE Hydrographic Program and the Joint Global Ocean Fluxes Study. Methods Manual WHPO. 91-1. Mantoura, R.F.C., Woodward, E.M.S., 1983. Optimization of the indophenol blue method for the automated determination of ammonia in estuarine waters. Estuar. Coast. Shelf Sci. 17, 219-224.; Researcher name: Calvin Mordy; Researcher institution: PMEL.
- Parameter or Variable: Nitrate; Abbreviation: NITRATE; Unit: UMOL/KG; Observation type: Calculated; Sampling instrument: Discrete samples were drawn from a CTD Niskin; Analyzing instrument: Discrete samples were run on a continuous flow analyzer.; Detailed sampling and analyzing information: 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. Nutrient samples were analyzed according to the methods of Gordon, et al (1993). Ammonium was measured using an indophenol blue method modified from Mantoura and Woodward (1983).; Quality flag convention: All data points are flagged (3) as questionable.; Method reference: Gordon, I., Jennings, J.C., Ross, J.A., Krest, J. 1993. A Suggested Protocol for Continuous Flow Automated Analysis of Seawater Nutrients (Phosphate, Nitrate, Nitrite and Silicic Acid) in the WOCE Hydrographic Program and the Joint Global Ocean Fluxes Study. Methods Manual WHPO. 91-1. Mantoura, R.F.C., Woodward, E.M.S., 1983. Optimization of the indophenol blue method for the automated determination of ammonia in estuarine waters. Estuar. Coast. Shelf Sci. 17, 219-224.; Researcher name: Calvin Mordy; Researcher institution: PMEL.
- Parameter or Variable: Nitrite; Abbreviation: NITRITE; Unit: UMOL/KG; Observation type: Measured; Sampling instrument: Discrete samples were drawn from a CTD Niskin; Analyzing instrument: Discrete samples were run on a continuous flow analyzer.; Detailed sampling and analyzing information: 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. Nutrient samples were analyzed according to the methods of Gordon, et al (1993). Ammonium was measured using an indophenol blue method modified from Mantoura and Woodward (1983).; Quality flag convention: All data points are flagged (3) as questionable.; Method reference: Gordon, I., Jennings, J.C., Ross, J.A., Krest, J. 1993. A Suggested Protocol for Continuous Flow Automated Analysis of Seawater Nutrients (Phosphate, Nitrate, Nitrite and Silicic Acid) in the WOCE Hydrographic Program and the Joint Global Ocean Fluxes Study. Methods Manual WHPO. 91-1. Mantoura, R.F.C., Woodward, E.M.S., 1983. Optimization of the indophenol blue method for the automated determination of ammonia in estuarine waters. Estuar. Coast. Shelf Sci. 17, 219-224.; Researcher name: Calvin Mordy; Researcher institution: PMEL.
- Parameter or Variable: Phosphate; Abbreviation: PHOSPHATE; Unit: UMOL/KG; Observation type: Measured; Sampling instrument: Discrete samples were drawn from a CTD Niskin; Analyzing instrument: Discrete samples were run on a continuous flow analyzer.; Detailed sampling and analyzing information: 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. Nutrient samples were analyzed according to the methods of Gordon, et al (1993). Ammonium was measured using an indophenol blue method modified from Mantoura and Woodward (1983).; Quality flag convention: All data points are flagged (3) as questionable.; Method reference: Gordon, I., Jennings, J.C., Ross, J.A., Krest, J. 1993. A Suggested Protocol for Continuous Flow Automated Analysis of Seawater Nutrients (Phosphate, Nitrate, Nitrite and Silicic Acid) in the WOCE Hydrographic Program and the Joint Global Ocean Fluxes Study. Methods Manual WHPO. 91-1. Mantoura, R.F.C., Woodward, E.M.S., 1983. Optimization of the indophenol blue method for the automated determination of ammonia in estuarine waters. Estuar. Coast. Shelf Sci. 17, 219-224.; Researcher name: Calvin Mordy; Researcher institution: PMEL.
- Parameter or Variable: Oxygen 18; Abbreviation: DELO18; Unit: permil; Observation type: Measured; Sampling instrument: Discrete samples were drawn from a CTD Niskin; Detailed sampling and analyzing information: 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.; Quality flag convention: Flag assigned to the data quality: 2 = good, 3 = questionable, 4 = bad, 5 = not reported, 9 = not collected; Researcher name: Seth Danielson; Researcher institution: University of Alaska Fairbanks .
|