gov.noaa.nodc:0249587 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-03-26T08:08:13Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Dissolved inorganic carbon (DIC), total alkalinity (TA), temperature, salinity, nutrients, dissolved oxygen, chlorophyll-a and phaeo pigment measured by discrete water samples and CTD for calibration and validation of California Current Ecosystem (CCE) mooring timeseries from 2015-11-17 to 2021-06-18 (NCEI Accession 0249587) 2022-03-19 publication 2022-03-11 creation International DOI Foundation (IDF) 10.25921/35v7-2d22 NOAA National Centers for Environmental Information gov.noaa.nodc:0249587 NCEI Archive Management System 0249587 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Jeffrey Sevadjian Moss Landing Marine Laboratories (MLML) jsevadjian@mlml.calstate.edu https://mlml.sjsu.edu/ HTTPS Moss Landing Marine Laboratories (MLML) website Institution web page information resourceProvider Scripps Institution of Oceanography (SIO) https://scripps.ucsd.edu/ HTTPS Scripps Institution of Oceanography (SIO) website Institution web page information resourceProvider Uwe Send Scripps Institution of Oceanography (SIO) usend@ucsd.edu https://scripps.ucsd.edu/ HTTPS Scripps Institution of Oceanography (SIO) website Institution web page information principalInvestigator Mark D. Ohman Scripps Institution of Oceanography (SIO) mohman@ucsd.edu https://scripps.ucsd.edu/ HTTPS Scripps Institution of Oceanography (SIO) website Institution web page information principalInvestigator Matthias Lankhorst Scripps Institution of Oceanography (SIO) mlankhorst@ucsd.edu https://scripps.ucsd.edu/ HTTPS Scripps Institution of Oceanography (SIO) website Institution web page information principalInvestigator Jeffrey Sevadjian Moss Landing Marine Laboratories (MLML) jsevadjian@mlml.calstate.edu https://mlml.sjsu.edu/ HTTPS Moss Landing Marine Laboratories (MLML) website Institution web page information collaborator Send, Uwe Scripps Institution of Oceanography (SIO) https://scripps.ucsd.edu/ HTTPS Scripps Institution of Oceanography (SIO) website Institution web page information author Ohman, Mark D. Scripps Institution of Oceanography (SIO) https://scripps.ucsd.edu/ HTTPS Scripps Institution of Oceanography (SIO) website Institution web page information author Lankhorst, Matthias Scripps Institution of Oceanography (SIO) https://scripps.ucsd.edu/ HTTPS Scripps Institution of Oceanography (SIO) website Institution web page information author Sevadjian, Jeffrey Moss Landing Marine Laboratories (MLML) https://mlml.sjsu.edu/ HTTPS Moss Landing Marine Laboratories (MLML) website Institution web page information author Scripps Institution of Oceanography (SIO) https://scripps.ucsd.edu/ HTTPS Scripps Institution of Oceanography (SIO) website Institution web page information contributor tableDigital This dataset consists of discrete profile data collected data small ships near the California Current Ecosystem (CCE) mooring in the North pacific Ocean from 2015-11-17 to 2021-06-18. California Current Ecosystem moorings (CCE1 and CCE2) are surface buoys equipped with interdisciplinary scientific sensors including surface water and air pCO2, meteorological sensors (wind, air temperature, humidity, and air pressure), sea water temperature, salinity, currents, dissolved oxygen, pH, nutrients, and chlorophyll fluorescence. CCE1 is located offshore in the core of the California Current (CalCOFI station 80.80), and CCE2 is closer to shore on the shelf break near Point Conception (CalCOFI station 80.55). CCE moorings measure physical, biological, and chemical variables with temporal resolutions high enough to resolve event-scale phenomena, and transmit real-time data to shore. Annual cruises are conducted to recover and the moorings. During these cruises, CTD casts are performed with water samples of salinity, dissolved oxygen, dissolved inorganic carbon, total alkalinity, nutrients (nitrite, nitrate, silicate, phosphate, and ammonium), chlorophyll-a, and phaeopigment. This data file reports the discrete water sample results as well as CTD temperature and salinity values where the bottle samples were taken. To calibrate and validate CCE mooring timeseries Funding Information: NOAA Ocean Acidification Program (NOAA Award NA20OAR4320278, Cooperative Institute for Marine, Earth and Atmospheric Systems (CIMEAS), Project Title: “CCE Moorings: Moored Carbon, Biogeochemical, and Ecosystem Observations in the Southern California Current”, NA20OAR4320278) Funding Information: NOAA Ocean Acidification Program (NOAA Award NA15OAR4320071, The Cooperative Institute For Marine Ecosystems and Climate (CIMEC), Project Title: “CCE Moorings: Moored Carbon, Biogeochemical, and Ecosystem Observations in the Southern California Current”, NA15OAR4320071) Funding Information: NOAA Ocean Acidification Program (PMEL FY2015–FY2017 NOAA Ocean Acidification Observing Network (NOA-ON) Sustained Investment Workplan: CIMEC Moored Carbon, Biogeochemical, and Ecosystem Observations in the Southern California Current (Send), OAP1517-1027) Funding Information: NOAA Ocean Acidification Program (Moored Observations of Ocean Carbon System Variables in the Southern California Current Ecosystem (CCE Moorings), NOAA - NA15OAR4320071; NOAA - NA20OAR4320278) completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0249587 Preview graphic PNG 0249587 NCEI ACCESSION NUMBER 2022-03-10 publication AMMONIUM (NH4) CHLOROPHYLL DISSOLVED INORGANIC CARBON (DIC) DISSOLVED OXYGEN HYDROSTATIC PRESSURE NITRATE NITRITE phosphate SALINITY silicate total alkalinity WATER TEMPERATURE theme NODC DATA TYPES THESAURUS bottle instrument NODC INSTRUMENT TYPES THESAURUS biological chemical discrete sample physical profile theme NODC OBSERVATION TYPES THESAURUS Scripps Institution of Oceanography dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS Scripps Institution of Oceanography dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Ocean Carbon and Acidification Data System (OCADS) project NODC PROJECT NAMES THESAURUS Channel Islands National Marine Sanctuary North Pacific Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication OC1511A RL-16-05 RL-20-02 SH-17-10 SH-18-13 SKQ201606S SKQ201806S SKQ201912S SR-1707 project Cruise ID Various project EXPOCODE Ocean Acidification Program (OAP) Ocean Carbon and Acidification Data System (OCADS) Project project Ocean Acidification Search Keywords Coastal project Reference Section ID OceanSITES (OceanSITES) project Research Projects EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Profile theme OCADS Study Type AMMONIUM_UMOL_L BOTTLE_SALINITY CHLA_UG_L CTD_PRESSURE CTD_SALINITY CTD_TEMPERATURE DIC_UMOL_KG NITRATE_UMOL_L NITRITE_UMOL_L OXYGEN_ML_L PHAEO_UG_L PHOSPHATE_UMOL_L SILICATE_UMOL_L TA_UMOL_KG theme Provider Variable Abbreviations OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian California Current place Provider Geographic Names accessLevel: Public otherRestrictions Cite as: Send, Uwe; Ohman, Mark D.; Lankhorst, Matthias; Sevadjian, Jeffrey (2022). Dissolved inorganic carbon (DIC), total alkalinity (TA), temperature, salinity, nutrients, dissolved oxygen, chlorophyll-a and phaeo pigment measured by discrete water samples and CTD for calibration and validation of California Current Ecosystem (CCE) mooring timeseries from 2015-11-17 to 2021-06-18 (NCEI Accession 0249587). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/35v7-2d22. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. California Current Ecosystem 1 (CCE1) Mooring at 33.5°N, 122.5°W 2022 publication https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Coastal/CCE1_122W_33N.html HTTPS https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Coastal/CCE1_122W_33N.html Related resource information NOAA National Centers for Environmental Information (NCEI) publisher documentDigital crossReference project California Current Ecosystem 2 (CCE2) (Buoy Position: 34.324°N, 120.814°W) 2022 publication https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/CCE2.html HTTPS https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/CCE2.html Related resource information NOAA National Centers for Environmental Information (NCEI) publisher documentDigital crossReference project NOAA National Centers for Environmental Information (2022). Ocean Carbon and Acidification Data System (OCADS). NOAA National Centers for Environmental Information. https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system 2022-04 publication https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system HTTPS https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system OCADS website information NOAA National Centers for Environmental Information author NOAA National Centers for Environmental Information (NCEI) publisher documentDigital [accessed 2024-02-08] crossReference program eng; USA utf8 environment oceans -122.524 -117.317 32.2555 34.36 2015-11-17 2021-06-18 This data package (Submission ID: BFYGC69YR) was acquired by NCEI from the Scientific Data Integration System (SDIS) at the NOAA Pacific Marine Environmental Laboratory (PMEL) in accordance with the archival submission agreement between NCEI and PMEL. 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Originator data format 0.456 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0249587.html HTTPS Web browser Project Metadata Navigate directly to the URL for a descriptive web page with download links. information https://doi.org/10.25921/35v7-2d22 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/249587 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/249587 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0197/0249587/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0249587 v1.1 was published. 2022-03-19T06:44:06Z NCEI Accession 0249587 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0249587/1.1 HTTPS NCEI Accession 0249587 v1.1 published 2022-03-19T06:44:06Z download dataset Parameter or Variable: Dissolved Inorganic Carbon; Abbreviation: DIC_UMOL_KG; Unit: umol/kg; Observation type: Discrete measurements from Rosette bottle water samples collected on CTD casts; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Calculation method and parameters: none; Sampling instrument: Rosette bottle; Detailed sampling and analyzing information: DIC was determined by acidifying the sample, and using a gas extraction/coulometric titration technique as described in Dickson et al. (2007).; Quality flag convention: WOCE quality flags: 1=Sample for this measurement was drawn from water bottle but analysis not received, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Mean of replicate measurements, 7=Manual chromatographic peak measurement, 8=Irregular digital chromatographic peak integration, 9=Sample not drawn for this measurement from this bottle.; Method reference: Dickson, Andrew Gilmore, Christopher L. Sabine, and James Robert Christian. "Guide to Best Practices for Ocean CO2 Measurements." (2007).; Researcher name: Andrew Dickson, Todd Martz; Researcher institution: Scripps Institution of Oceanography, Scripps Institution of Oceanography Parameter or Variable: Total alkalinity; Abbreviation: TA_UMOL_KG; Unit: umol/kg; Observation type: Discrete measurements from Rosette bottle water samples collected on CTD casts; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: Rosette bottle; Analyzing instrument: Alkalinity titrator; Cell type (open or closed): open; Detailed sampling and analyzing information: Amber 250 ml polyproplene bottles are filled with water from Niskin bottles. TA was determined using a two-stage open-cell-titration technique as described in Dickson et al. (2003).; Quality flag convention: WOCE quality flags: 1=Sample for this measurement was drawn from water bottle but analysis not received, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Mean of replicate measurements, 7=Manual chromatographic peak measurement, 8=Irregular digital chromatographic peak integration, 9=Sample not drawn for this measurement from this bottle.; Method reference: Dickson, AG, Afghan JD, Anderson GC. "Reference materials for oceanic CO2 analysis: a method for the certification of total alkalinity". Marine Chemistry. 80:185-197. https://doi.org/10.1016/s0304-4203(02)00133-0 (2003); Researcher name: Andrew Dickson, Todd Martz; Researcher institution: Scripps Institution of Oceanography, Scripps Institution of Oceanography Parameter or Variable: Sea water pressure; Abbreviation: CTD_PRESSURE; Unit: dbar; Observation type: profile; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: SBE 9plus CTD Digiquartz pressure sensor; Detailed sampling and analyzing information: Digiquartz pressure sensor connected to the CTD-Rosette measures pressure profiles. During upcasts, Rosette bottles are closed at target depths to trap seawater for various analyses. At those target depths, CTD pressure values are averaged over 1.5 seconds starting from the beginning of bottle closure to obtain discrete pressure values. Typically pressure sensors are calibrated every 12 months by manufacturer.; Quality flag convention: WOCE quality flags: 1=Not calibrated, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Interpolated over a pressure interval larger than 2 dbar, 7=Despiked, 9=Not sampled.; Researcher name: Matthias Lankhorst; Researcher institution: Scripps Institution of Oceanography Parameter or Variable: Sea water temperature; Abbreviation: CTD_TEMPERATURE; Unit: ITS-90 scale degC; Observation type: profile; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: SBE 3plus; Detailed sampling and analyzing information: SBE 3plus dual temperature sensor connected to the CTD-Rosette measures temperature profiles. During upcasts, Rosette bottles are closed at target depths to trap seawater. CTD temperature values are averaged over 1.5 seconds from bottle closure to obtain discrete temperature values. Typically SBE 3plus calibration is done every 4 months by the Oceanographic Data Facility at Scripps Institution of Oceanography.; Uncertainty: plus minus 0.001 degC; Quality flag convention: WOCE quality flags: 1=Not calibrated, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Interpolated over a pressure interval larger than 2 dbar, 7=Despiked, 9=Not sampled.; Researcher name: Matthias Lankhorst; Researcher institution: Scripps Institution of Oceanography Parameter or Variable: Sea water salinity; Abbreviation: CTD_SALINITY; Unit: psu; Observation type: profile; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Calculated; Calculation method and parameters: calculated from measured conductivity; Sampling instrument: SBE 4C; Detailed sampling and analyzing information: SBE 4C dual conductivity sensor connected to the CTD-Rosette meausres conductivity profiles. During upcasts, Rosette bottles are closed at target depths to trap seawater. CTD salinity values calculated from CTD conductivity are averaged over 1.5 seconds from bottle closure to obtain discrete salinity values. Typically SBE 4C calibration is done every 4 months by SBE. No other data processing has been applied.; Uncertainty: plus minus 0.005 psu; Quality flag convention: WOCE quality flags: 1=Not calibrated, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Interpolated over a pressure interval larger than 2 dbar, 7=Despiked, 9=Not sampled.; Researcher name: Matthias Lankhorst; Researcher institution: Scripps Institution of Oceanography Parameter or Variable: Sea water practical salinity; Abbreviation: BOTTLE_SALINITY; Unit: psu; Observation type: Discrete measurements from Rosette bottle water samples collected on CTD casts; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: Rosette bottle; Analyzing instrument: Salinometer; Detailed sampling and analyzing information: Rosette bottle water samples were taken to the shore and salinity measurements were made using salinometer.; Quality flag convention: WOCE quality flags: 1=Sample for this measurement was drawn from water bottle but analysis not received, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Mean of replicate measurements, 7=Manual chromatographic peak measurement, 8=Irregular digital chromatographic peak integration, 9=Sample not drawn for this measurement from this bottle.; Researcher name: Matthias Lankhorst; Researcher institution: Scripps Institution of Oceanography Parameter or Variable: Dissolved oxygen concentration in sea water; Abbreviation: OXYGEN_ML_L; Unit: ml/L; Observation type: Discrete measurements from Rosette bottle water samples collected on CTD casts; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: Rosette bottle; Analyzing instrument: Oxygen titrator; Detailed sampling and analyzing information: Bottle samples are analyzed by an SIO oxygen titrator (an iodine titrator). The function of the SIO oxygen titrator is little different in principle from the basic Winkler titration as modified by Carpenter (1965). As an end-point indicator, the very strong ultra-violet light absorption is used instead of the visible color of the iodine-starch complex.; Quality flag convention: WOCE quality flags: 1=Sample for this measurement was drawn from water bottle but analysis not received, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Mean of replicate measurements, 7=Manual chromatographic peak measurement, 8=Irregular digital chromatographic peak integration, 9=Sample not drawn for this measurement from this bottle.; Method reference: Carpenter, J. H., “The Chesapeake Bay Institute technique for the Winkler dissolved oxygen method,” Limnology and Oceanography, 10, pp. 141-143 (1965).; Researcher name: Matthias Lankhorst; Researcher institution: Scripps Institution of Oceanography Parameter or Variable: Nitrate concentration in sea water; Abbreviation: NITRATE_UMOL_L; Unit: umol/L; Observation type: Discrete measurements from Rosette bottle water samples collected on CTD casts; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: Rosette bottle; Analyzing instrument: Seal Analytical continuous-flow AutoAnalyzer 3 (AA3); Detailed sampling and analyzing information: Water samples are analyzed by a Seal Analytical continuous-flow AutoAnalyzer 3 (AA3). A modification of the Armstrong et al. (1967) procedure is used for the analysis of nitrate and nitrite.; Quality flag convention: WOCE quality flags: 1=Sample for this measurement was drawn from water bottle but analysis not received, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Mean of replicate measurements, 7=Manual chromatographic peak measurement, 8=Irregular digital chromatographic peak integration, 9=Sample not drawn for this measurement from this bottle.; Method reference: Armstrong, F.A.J., Stearns, C.A., and Strickland, J.D.H., "The measurement of upwelling and subsequent biological processes by means of the Technicon Autoanalyzer and associated equipment," Deep-Sea Research, 14, pp.381-389 (1967).; Researcher name: Mark Ohman; Researcher institution: Scripps Institution of Oceanography Parameter or Variable: Nitrite concentration in sea water; Abbreviation: NITRITE_UMOL_L; Unit: umol/L; Observation type: Discrete measurements from Rosette bottle water samples collected on CTD casts; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: Rosette bottle; Analyzing instrument: Seal Analytical continuous-flow AutoAnalyzer 3 (AA3); Detailed sampling and analyzing information: Water samples are analyzed by a Seal Analytical continuous-flow AutoAnalyzer 3 (AA3). A modification of the Armstrong et al. (1967) procedure is used for the analysis of nitrate and nitrite.; Quality flag convention: WOCE quality flags: 1=Sample for this measurement was drawn from water bottle but analysis not received, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Mean of replicate measurements, 7=Manual chromatographic peak measurement, 8=Irregular digital chromatographic peak integration, 9=Sample not drawn for this measurement from this bottle.; Method reference: Armstrong, F.A.J., Stearns, C.A., and Strickland, J.D.H., "The measurement of upwelling and subsequent biological processes by means of the Technicon Autoanalyzer and associated equipment," Deep-Sea Research, 14, pp.381-389 (1967).; Researcher name: Mark Ohman; Researcher institution: Scripps Institution of Oceanography Parameter or Variable: Ammonium concentration in sea water; Abbreviation: AMMONIUM_UMOL_L; Unit: umol/L; Observation type: Discrete measurements from Rosette bottle water samples collected on CTD casts; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: Rosette bottle; Detailed sampling and analyzing information: The basic method of Kerouel and Aminot (Kero97) is used.; Quality flag convention: WOCE quality flags: 1=Sample for this measurement was drawn from water bottle but analysis not received, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Mean of replicate measurements, 7=Manual chromatographic peak measurement, 8=Irregular digital chromatographic peak integration, 9=Sample not drawn for this measurement from this bottle.; Method reference: Kerouel, R., Aminot, A., “Fluorometric determination of ammonia in sea and estuarine waters by direct segmented flow analysis.” Marine Chemistry, vol 57, no. 3-4, pp. 265-275, July 1997; Researcher name: Mark Ohman; Researcher institution: Scripps Institution of Oceanography Parameter or Variable: Phosphate concentration in sea water; Abbreviation: PHOSPHATE_UMOL_L; Unit: umol/L; Observation type: Discrete measurements from Rosette bottle water samples collected on CTD casts; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: Rosette bottle; Detailed sampling and analyzing information: A modification of the Bernhardt and Wilhelms (1967) method was used.; Quality flag convention: WOCE quality flags: 1=Sample for this measurement was drawn from water bottle but analysis not received, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Mean of replicate measurements, 7=Manual chromatographic peak measurement, 8=Irregular digital chromatographic peak integration, 9=Sample not drawn for this measurement from this bottle.; Method reference: Bernhardt, H., and Wilhelms, A., "The continuous determination of low level iron, soluble phosphate and total phosphate with the AutoAnalyzer," Technicon Symposia, I, pp.385-389 (1967).; Researcher name: Mark Ohman; Researcher institution: Scripps Institution of Oceanography Parameter or Variable: Silicate concentration in sea water; Abbreviation: SILICATE_UMOL_L; Unit: umol/L; Observation type: Discrete measurements from Rosette bottle water samples collected on CTD casts; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: Rosette bottle; Detailed sampling and analyzing information: The basic Armstrong et al. (1967) method was used.; Quality flag convention: WOCE quality flags: 1=Sample for this measurement was drawn from water bottle but analysis not received, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Mean of replicate measurements, 7=Manual chromatographic peak measurement, 8=Irregular digital chromatographic peak integration, 9=Sample not drawn for this measurement from this bottle.; Method reference: Armstrong, F.A.J., Stearns, C.A., and Strickland, J.D.H., "The measurement of upwelling and subsequent biological processes by means of the Technicon Autoanalyzer and associated equipment," Deep-Sea Research, 14, pp.381-389 (1967).; Researcher name: Mark Ohman; Researcher institution: Scripps Institution of Oceanography Parameter or Variable: Mass concentration of cholophyll-a in sea water; Abbreviation: CHLA_UG_L; Unit: ug/L; Observation type: Discrete measurements from Rosette bottle water samples collected on CTD casts; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: Rosette bottle; Analyzing instrument: Fluorometer; Detailed sampling and analyzing information: Water samples are filtered onto GF/F filters, then chlorophyll-a is extracted in an acetone solution. Fluorometer is used to read fluorescence before and after acidification to calculate chlorophyll-a and phaeopigment.; Quality flag convention: WOCE quality flags: 1=Sample for this measurement was drawn from water bottle but analysis not received, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Mean of replicate measurements, 7=Manual chromatographic peak measurement, 8=Irregular digital chromatographic peak integration, 9=Sample not drawn for this measurement from this bottle.; Method reference: Yentsch, C.S., Menzel, D.W., "A method for the determination of phytoplankton chlorophyll and phaeophytin by fluorescence", Deep-Sea Res. 10: 221-231 (1963). Holm_Hansen, O., Lorenzen, C.J., Holms, R.W., Strickland, J.D.H., "Fluorometric Determination of Chlorophyll", J. Cons.perm.int Explor. Mer. 30: 3-15 (1965). Lorenzen, C. J., "Determination of chlorophylls and phaeopigments: spectrophotometric equations", Limnol. Oceanogr. 12: 343-346 (1967).; Researcher name: Mark Ohman; Researcher institution: Scripps Institution of Oceanography Parameter or Variable: Mass concentration of phaeo pigment in sea water; Abbreviation: PHAEO_UG_L; Unit: ug/L; Observation type: Discrete measurements from Rosette bottle water samples collected on CTD casts; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Sampling instrument: Rosette bottle; Analyzing instrument: Fluorometer; Detailed sampling and analyzing information: Water samples are filtered onto GF/F filters, then chlorophyll-a is extracted in an acetone solution. Fluorometer is used to read fluorescence before and after acidification to calculate chlorophyll-a and phaeopigment.; Quality flag convention: WOCE quality flags: 1=Sample for this measurement was drawn from water bottle but analysis not received, 2=Acceptable measurement, 3=Questionable measurement, 4=Bad measurement, 5=Not reported, 6=Mean of replicate measurements, 7=Manual chromatographic peak measurement, 8=Irregular digital chromatographic peak integration, 9=Sample not drawn for this measurement from this bottle.; Method reference: Yentsch, C.S., Menzel, D.W., "A method for the determination of phytoplankton chlorophyll and phaeophytin by fluorescence", Deep-Sea Res. 10: 221-231 (1963). Holm_Hansen, O., Lorenzen, C.J., Holms, R.W., Strickland, J.D.H., "Fluorometric Determination of Chlorophyll", J. Cons.perm.int Explor. Mer. 30: 3-15 (1965). Lorenzen, C. J., "Determination of chlorophylls and phaeopigments: spectrophotometric equations", Limnol. Oceanogr. 12: 343-346 (1967).; Researcher name: Mark Ohman; Researcher institution: Scripps Institution of Oceanography asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian bottle bottle any type of water bottle sampling device Generic name for water collection device; usually used to determine temperature, salinity and provide water aliquots for measurement of a wide range of parameters; often referred to by a specific type of water sampling bottle, such as a Nansen or Niskin bottle.