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Water temperature, salinity, dissolved oxygen and other parameters from Niskin-bottle water samples from research vessel Hermano Gines in the Cariaco Basin from 1995-11-8 through 2017-1-12 (NCEI Accession 0201747)

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This dataset contains water temperature, salinity, dissolved oxygen, and other parameters taken by Niskin-bottle water samples from research vessel Hermano Gines in the Cariaco Basin of the Caribbean Sea for the CARIACO Ocean Time-Series Program (formerly known as CArbon Retention In A Colored Ocean). This observation program started in November 1995 (cruise CAR-001) and ended on January 2017 (cruise CAR-232). Monthly cruises were conducted as close as possible to the CARIACO station location (10.50N, 64.67W) onboard the research vessel Hermano Ginés of the Fundación La Salle de Ciencias Naturales de Venezuela. During each cruise, a minimum of four hydrocasts were performed to collect a suite of core monthly observations. We conducted separate shallow and deep casts to obtain a better vertical resolution of in-situ Niskin-bottles samples for chemical observations, and for productivity, phytoplankton, and pigment observations. Data were submitted as Microsoft Excel spreadsheets and converted to CSV format.

Dataset Citation

Cite as: Muller-Karger, Frank E.; Astor, Yrene M.; Scranton, Mary; Taylor, Gordon T.; Thunell, Robert; Varela, Ramon; Benitez-Nelson, Claudia R.; Buck, Kristen N.; Fanning, Kent A.; Capelo, Juan; Gutierrez, Javier; Guzmán, Laurencia; Lorenzoni, Laura; Montes, Enrique; Rojas, Jaimie; Rondon, Anadiuska; Rueda-Roa, Digna; Tappa, Eric (2019). Water temperature, salinity, dissolved oxygen and other parameters from Niskin-bottle water samples from research vessel Hermano Gines in the Cariaco Basin from 1995-11-8 through 2017-1-12 (NCEI Accession 0201747). https://www.ncei.noaa.gov/archive/accession/0201747. In Scranton, Mary; Taylor, G. T.; Varela, Ramon; Astor, Yrene; Muller-Karger, Frank; Lorenzoni, Laura; McIntyre, Michelle. CARIACO Ocean Time-Series data collected in the Cariaco Basin since 1995. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/CARIACO. Accessed [date].

Dataset Identifiers

ISO 19115-2 Metadata

gov.noaa.nodc:0201747

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Download Data	HTTPS (download) Navigate directly to the URL for data access and direct download. FTP (download) 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).
Distribution Formats	Originator data format
Ordering Instructions	Contact NCEI for other distribution options and instructions.
Distributor	NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov
Dataset Point of Contact	NOAA National Centers for Environmental Information ncei.info@noaa.gov

Time Period	1995-11-08 to 2017-01-12
Spatial Bounding Box Coordinates	West: -64.689 East: -64.6 South: 10.484 North: 10.521
Spatial Coverage Map

General Documentation	NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. Descriptive Information Navigate directly to the URL for a descriptive web page with download links.
Associated Resources	CARIACO Ocean Time-Series data collected in the Cariaco Basin since 1995 https://www.ncei.noaa.gov/archive/accession/CARIACO NCEI Collection Parent ID (indicates this dataset is related to other data): gov.noaa.nodc:CARIACO

Publication Dates	publication: 2019-09-09
Data Presentation Form	Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status	Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility
Data Update Frequency	As needed
Purpose	The CARIACO Ocean Time-Series Program (formerly known as CArbon Retention In A Colored Ocean) started on November 1995 (CAR-001) and ended on January 2017 (CAR-232). Monthly cruises were conducted to the CARIACO station (10.50° N, 64.67° W) onboard the R/V Hermano Ginés of the Fundación La Salle de Ciencias Naturales de Venezuela. The program studied the relationship between surface primary production, physical forcing variables like the wind, and the settling flux of particulate carbon in the Cariaco Basin. This depression, located on the continental shelf of Venezuela, shows marked seasonal and interannual variation in hydrographic properties and primary production (carbon fixation rates by photosynthesis of planktonic algae). The CARIACO Ocean Time-Series study area is the Cariaco Basin, located on the continental shelf of Venezuela, in the southeastern Caribbean Sea. The Cariaco Basin is a large (∼160 km long, 70 km wide) and deep (∼1,400 m) basin, located on the Venezuelan continental shelf, with an area of approximately 11.200 km2; bound to the north by a sill connecting Margarita Island to Cabo Codera, at a mean depth of about 100 m with two channels breaching this sill (La Tortuga: ∼135 m and Centinela: ∼146 m). The basin is divided into two sub-basins, one eastern and one western, separated by a saddle of approximately 900 m deep. The Cariaco Basin region is between 10-11 degrees N and 64-66 degrees W. The Cariaco Basin shows marked seasonal and interannual variation in hydrographic properties and primary production (carbon fixation rates by photosynthesis of planktonic algae) due to the seasonal coastal upwelling. The Cariaco Basin hydrography is affected by North-Atlantic gyre-scale processes, including dispersal of Subtropical Underwater and western boundary current variability, cross-equatorial flow of water masses, wind-driven upwelling compounded by geostrophic circulation, ventilation forced by Caribbean Sea eddies, and river discharge. Due to its restricted circulation and high primary production, the basin is anoxic below ~250 m.
Use Limitations	accessLevel: Public 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.

Dataset Citation	Cite as: Muller-Karger, Frank E.; Astor, Yrene M.; Scranton, Mary; Taylor, Gordon T.; Thunell, Robert; Varela, Ramon; Benitez-Nelson, Claudia R.; Buck, Kristen N.; Fanning, Kent A.; Capelo, Juan; Gutierrez, Javier; Guzmán, Laurencia; Lorenzoni, Laura; Montes, Enrique; Rojas, Jaimie; Rondon, Anadiuska; Rueda-Roa, Digna; Tappa, Eric (2019). Water temperature, salinity, dissolved oxygen and other parameters from Niskin-bottle water samples from research vessel Hermano Gines in the Cariaco Basin from 1995-11-8 through 2017-1-12 (NCEI Accession 0201747). https://www.ncei.noaa.gov/archive/accession/0201747. In Scranton, Mary; Taylor, G. T.; Varela, Ramon; Astor, Yrene; Muller-Karger, Frank; Lorenzoni, Laura; McIntyre, Michelle. CARIACO Ocean Time-Series data collected in the Cariaco Basin since 1995. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/CARIACO. Accessed [date].
Cited Authors	Muller-Karger, Frank E. University of South Florida (USF) Astor, Yrene M. Estacion de Investigaciones Marinas de Margarita Scranton, Mary Stony Brook University Taylor, Gordon T. Stony Brook University Thunell, Robert Varela, Ramon Estacion de Investigaciones Marinas de Margarita Benitez-Nelson, Claudia R. Buck, Kristen N. Fanning, Kent A. University of South Florida St. Petersburg Capelo, Juan Gutierrez, Javier Guzmán, Laurencia Lorenzoni, Laura University of South Florida St. Petersburg Montes, Enrique University of South Florida Rojas, Jaimie Rondon, Anadiuska Rueda-Roa, Digna University of South Florida (USF) Tappa, Eric
Contributors	University of South Florida (USF)
Resource Providers	Digna Rueda-Roa University of South Florida (USF) University of South Florida (USF)
Points of Contact	Digna Rueda-Roa University of South Florida (USF)
Publishers	NOAA National Centers for Environmental Information
Acknowledgments	Funding Agency: NSF: National Science Foundation; Division of Ocean Science Funding Agency: NASA: National Aeronautics & Space Administration Funding Agency: FONACIT: Fondo Nacional de Ciencia, Tecnología e Innovación de Venezuela Funding Agency: LOCTI: Ley Orgánica de Ciencia, Tecnología e Innovación, Venezuela Funding Agency: IAI: Inter-American Institute for Global Change Research

Theme keywords	NODC DATA TYPES THESAURUS AIR-SEA DIFFERENCE - PARTIAL PRESSURE (OR FUGACITY) OF CARBON DIOXIDE CARBON - TOTAL ORGANIC CHLOROPHYLL A DEPTH - OBSERVATION DISSOLVED INORGANIC CARBON (DIC) DISSOLVED OXYGEN NITROGEN - PARTICULATE PARTICULATE ORGANIC CARBON PARTICULATE ORGANIC NITROGEN (PON) pH PHAEOPIGMENTS PRIMARY PRODUCTIVITY SALINITY SIGMA-T total alkalinity NODC OBSERVATION TYPES THESAURUS biological chemical in situ physical WMO_CategoryCode oceanography Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PRIMARY PRODUCTION EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS > CHLOROPHYLL EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY
Data Center keywords	NODC COLLECTING INSTITUTION NAMES THESAURUS University of South Florida NODC SUBMITTING INSTITUTION NAMES THESAURUS University of South Florida
Platform keywords	NODC PLATFORM NAMES THESAURUS B/O HERMANO GINES ICES/SeaDataNet Ship Codes HERMANO GINES (ICES code: 93HG)
Instrument keywords	NODC INSTRUMENT TYPES THESAURUS Niskin bottle Global Change Master Directory (GCMD) Instrument Keywords NISKIN BOTTLES
Place keywords	NODC SEA AREA NAMES THESAURUS Caribbean Sea Global Change Master Directory (GCMD) Location Keywords OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA
Project keywords	NODC PROJECT NAMES THESAURUS CArbon Retention In A Colored Ocean (CARIACO)
Keywords	NCEI ACCESSION NUMBER 0201747
Keywords	Send2NCEI Submission Package ID BHHB6E

Use Constraints	Cite as: Muller-Karger, Frank E.; Astor, Yrene M.; Scranton, Mary; Taylor, Gordon T.; Thunell, Robert; Varela, Ramon; Benitez-Nelson, Claudia R.; Buck, Kristen N.; Fanning, Kent A.; Capelo, Juan; Gutierrez, Javier; Guzmán, Laurencia; Lorenzoni, Laura; Montes, Enrique; Rojas, Jaimie; Rondon, Anadiuska; Rueda-Roa, Digna; Tappa, Eric (2019). Water temperature, salinity, dissolved oxygen and other parameters from Niskin-bottle water samples from research vessel Hermano Gines in the Cariaco Basin from 1995-11-8 through 2017-1-12 (NCEI Accession 0201747). https://www.ncei.noaa.gov/archive/accession/0201747. In Scranton, Mary; Taylor, G. T.; Varela, Ramon; Astor, Yrene; Muller-Karger, Frank; Lorenzoni, Laura; McIntyre, Michelle. CARIACO Ocean Time-Series data collected in the Cariaco Basin since 1995. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/CARIACO. Accessed [date].
Access Constraints	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.
Fees	In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.

Lineage information for: dataset
Processing Steps	2019-09-09T20:36:19Z - NCEI Accession 0201747 v1.1 was published.
Output Datasets	NCEI Accession 0201747 v1.1 NCEI Accession 0201747 v1.1 (download) published 2019-09-09T20:36:19Z

Lineage information for: dataset
Processing Steps	Parameter or Variable: water depth (measured); Units: m; Observation Category: in situ; Sampling Instrument: SBE29. Parameter or Variable: TEMPERATURE - WATER - CONTINUOUS MEASUREMENT [WATER TEMPERATURE] (measured); Units: degrees C; Observation Category: in situ; Sampling Instrument: SBE3. Parameter or Variable: salinity (measured); Units: psu; Observation Category: in situ; Sampling Instrument: SBE4 and ninskin bottle. Parameter or Variable: DISSOLVED OXYGEN (measured); Units: mL/L; Observation Category: in situ; Sampling Instrument: Niskin bottle. Parameter or Variable: DISSOLVED OXYGEN (calculated); Units: uM/Kg; Observation Category: in situ; Sampling Instrument: Niskin bottle. Parameter or Variable: pH (measured); Units: Total Scale; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Corrections of pH (at 25°C) for dye indicator impurities: Samples of pHT and total alkalinity (TA) were both analyzed using spectrophotometric techniques developed by Clayton and Byrne (1993) and Breland and Byrne (1993) respectively. The pH method uses the dye meta-cresol purple (mCP) as the pH indicator. The mCP dye used in CARIACO was in its unpurified form. Impurities in the indicator dye may cause uncertainty in measured pH values (Yao et al., 2007). Unpurified forms of the dye absorb significantly at the wavelength of maximum absorption for the acid species, HI- (434 nm) (Liu et al., 2011). The ratio of indicator absorbance at wavelengths 578 (base specie, I2-) and 434 (R = A578/A434) is used to calculate pH. Therefore, the effect of the impurities translates into apparent lower pH calculated values, especially at surface waters where pH > 8.0 (Yao et al., 2007). The effect of the impurities varies from one indicator manufacturer to another, and from different batches of the same manufacturer (Yao et al., 2007). Fortunately, the indicator used for the whole dataset in CARIACO came from the same batch. Hence, a correction for mCP impurities was applied following the method developed by Douglas and Byrne (2017) to each set of data for each cruise. This correction translated to ~ -0.01 units at pH ~ 8.1, decreasing to ~ - 0.008 units at pH ~ 7.6. The corrections were applied to the whole dataset, and values for DIC and fCO2 were recalculated and replaced in the Master file. All the pH values were reported in the Master file for CARIACO data at 25 ℃ to avoid the effects of temperature on the solution chemistry. Measurement precision for CARIACO data was around ± 0.003 pH units. ----------------------------------------------------------------------------------------------------------------------- - Breland II, J.A., R.H. Byrne. 1993. Spectrophotometric procedures for determination of seawater alkalinity using bromocresol green. Deep-Sea Res. I 40 (3), 629-641. - Douglas, N.K., R.H. Byrne. 2017 Achieving accurate spectrophotometric pH measurements using unpurified meta-cresol purple. Marine Chemistry, 190: 66-72 - Clayton, T., R. Byrne. 1993. Spectrophotometric seawater pH measurements: Total hydrogen ion concentration scale calibration of m-cresol purple and at-sea results, Deep Sea Research, Part A, 40, 2115– 2129. - Liu, X., Patsavas, M.C., Byrne, R.H., 2011. Purification and characterization of meta-cresol purple for spectrophotometric seawater pH measurements. Environ. Sci. Technol. 45, 4862–4868. - Yao, W., X. Liu, and R. Byrne. 2007. Impurities in indicators used for spectrophotometric pH measurements: Assessments and remedies, Marine Chemistry, 107, 167–172, doi:10.1016/j.marchem.2007.06.012.. Parameter or Variable: ALKALINITY - TOTAL [total alkalinity] (measured); Units: mol/kg; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Ocean Optics Spectrometer. Parameter or Variable: tCO2 [DISSOLVED INORGANIC CARBON (DIC)] (calculated); Units: umol/Kg; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: calculated with corrected pH for dye indicator impurities. Parameter or Variable: PARTICULATE ORGANIC CARBON (measured); Units: mg/m^3; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Perkin Elmer 2400 elemental Analyzer. Parameter or Variable: AIR-SEA DIFFERENCE - PARTIAL PRESSURE (OR FUGACITY) OF CARBON DIOXIDE (calculated); Units: uatm; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: calculated with corrected pH for dye indicator impurities. Parameter or Variable: PARTICULATE NITROGEN [NITROGEN - PARTICULATE] (measured); Units: mg/m^3; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Perkin Elmer 2400 elemental Analyzer. Parameter or Variable: CHLOROPHYLL A (measured); Units: mg/m^3; Observation Category: in situ; Sampling Instrument: Niskin bottle and Chelsea Aqua 3 Fluorometer. Parameter or Variable: PRIMARY PRODUCTIVITY (measured); Units: mg/m^3/hr; Observation Category: in situ; Sampling Instrument: Niskin bottle and in situ incubations; Sampling and Analyzing Method: Betascout Scintillation Counter. Parameter or Variable: Inorganic Nutrients (measured); Units: uM; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: AAII Autoanalyzer. Parameter or Variable: SIGMA-T (measured); Units: kg/m^3; Observation Category: in situ; Sampling Instrument: SBE29. Parameter or Variable: PHOSPHORUS - TOTAL PARTICULATE PHOSPHORUS (TPP) (measured); Units: nmol; Observation Category: in situ; Sampling Instrument: Niskin bottle. Parameter or Variable: NITROGEN - PARTICULATE (PN) (measured); Units: ug/L; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Elemental Analyzer CHN Perkin Elmer 2400. Parameter or Variable: carbon to nitrogen ratio of particulate C to N (C/N particulate) (calculated); Units: mol to mol; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Elemental Analyzer CHN Perkin Elmer 2400. Parameter or Variable: Total Organic Carbon (TOC) [CARBON - TOTAL ORGANIC] (measured); Units: umol; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Organic carbon analyzer Shimadzu TOC-VCSH. Parameter or Variable: DISSOLVED ORGANIC CARBON (DOC) (measured); Units: umol; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Organic carbon analyzer Shimadzu TOC-VCSH. Parameter or Variable: Dissolved Organic Nitrogen (DON) (measured); Units: mmol; Observation Category: in situ; Sampling Instrument: Niskin bottle. Parameter or Variable: DISSOLVED ORGANIC PHOSPHORUS (DOP) (measured); Units: mmol; Observation Category: in situ; Sampling Instrument: Niskin bottle. Parameter or Variable: TOTAL PARTICULATE PHOSPHORUS (TPP) (measured); Units: nmol; Observation Category: in situ; Sampling Instrument: Niskin bottle. Parameter or Variable: PARTICULATE INORGANIC PHOSPHORUS (PIP) (measured); Units: nmol; Observation Category: in situ; Sampling Instrument: Niskin bottle. Parameter or Variable: PARTICULATE ORGANIC NITROGEN (PON) (measured); Units: ug/Kg; Observation Category: in situ; Sampling Instrument: Niskin bottle. Parameter or Variable: PARTICULATE ORGANIC CARBON (POC) (measured); Units: ug/Kg; Observation Category: in situ; Sampling Instrument: Niskin bottle. Parameter or Variable: PARTICULATE ORGANIC CARBON (measured); Units: ug/L; Observation Category: in situ; Sampling Instrument: Niskin bottle. Parameter or Variable: PHAEOPIGMENTS (measured); Units: mg/m^3; Observation Category: in situ; Sampling Instrument: Niskin bottle.

Lineage information for: dataset

Processing Steps

Parameter or Variable: water depth (measured); Units: m; Observation Category: in situ; Sampling Instrument: SBE29.
Parameter or Variable: TEMPERATURE - WATER - CONTINUOUS MEASUREMENT [WATER TEMPERATURE] (measured); Units: degrees C; Observation Category: in situ; Sampling Instrument: SBE3.
Parameter or Variable: salinity (measured); Units: psu; Observation Category: in situ; Sampling Instrument: SBE4 and ninskin bottle.
Parameter or Variable: DISSOLVED OXYGEN (measured); Units: mL/L; Observation Category: in situ; Sampling Instrument: Niskin bottle.
Parameter or Variable: DISSOLVED OXYGEN (calculated); Units: uM/Kg; Observation Category: in situ; Sampling Instrument: Niskin bottle.
Parameter or Variable: pH (measured); Units: Total Scale; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Corrections of pH (at 25°C) for dye indicator impurities: Samples of pHT and total alkalinity (TA) were both analyzed using spectrophotometric techniques developed by Clayton and Byrne (1993) and Breland and Byrne (1993) respectively. The pH method uses the dye meta-cresol purple (mCP) as the pH indicator. The mCP dye used in CARIACO was in its unpurified form. Impurities in the indicator dye may cause uncertainty in measured pH values (Yao et al., 2007). Unpurified forms of the dye absorb significantly at the wavelength of maximum absorption for the acid species, HI- (434 nm) (Liu et al., 2011). The ratio of indicator absorbance at wavelengths 578 (base specie, I2-) and 434 (R = A578/A434) is used to calculate pH. Therefore, the effect of the impurities translates into apparent lower pH calculated values, especially at surface waters where pH > 8.0 (Yao et al., 2007). The effect of the impurities varies from one indicator manufacturer to another, and from different batches of the same manufacturer (Yao et al., 2007). Fortunately, the indicator used for the whole dataset in CARIACO came from the same batch. Hence, a correction for mCP impurities was applied following the method developed by Douglas and Byrne (2017) to each set of data for each cruise. This correction translated to ~ -0.01 units at pH ~ 8.1, decreasing to ~ - 0.008 units at pH ~ 7.6. The corrections were applied to the whole dataset, and values for DIC and fCO2 were recalculated and replaced in the Master file. All the pH values were reported in the Master file for CARIACO data at 25 ℃ to avoid the effects of temperature on the solution chemistry. Measurement precision for CARIACO data was around ± 0.003 pH units. ----------------------------------------------------------------------------------------------------------------------- - Breland II, J.A., R.H. Byrne. 1993. Spectrophotometric procedures for determination of seawater alkalinity using bromocresol green. Deep-Sea Res. I 40 (3), 629-641. - Douglas, N.K., R.H. Byrne. 2017 Achieving accurate spectrophotometric pH measurements using unpurified meta-cresol purple. Marine Chemistry, 190: 66-72 - Clayton, T., R. Byrne. 1993. Spectrophotometric seawater pH measurements: Total hydrogen ion concentration scale calibration of m-cresol purple and at-sea results, Deep Sea Research, Part A, 40, 2115– 2129. - Liu, X., Patsavas, M.C., Byrne, R.H., 2011. Purification and characterization of meta-cresol purple for spectrophotometric seawater pH measurements. Environ. Sci. Technol. 45, 4862–4868. - Yao, W., X. Liu, and R. Byrne. 2007. Impurities in indicators used for spectrophotometric pH measurements: Assessments and remedies, Marine Chemistry, 107, 167–172, doi:10.1016/j.marchem.2007.06.012..
Parameter or Variable: ALKALINITY - TOTAL [total alkalinity] (measured); Units: mol/kg; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Ocean Optics Spectrometer.
Parameter or Variable: tCO2 [DISSOLVED INORGANIC CARBON (DIC)] (calculated); Units: umol/Kg; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: calculated with corrected pH for dye indicator impurities.
Parameter or Variable: PARTICULATE ORGANIC CARBON (measured); Units: mg/m^3; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Perkin Elmer 2400 elemental Analyzer.
Parameter or Variable: AIR-SEA DIFFERENCE - PARTIAL PRESSURE (OR FUGACITY) OF CARBON DIOXIDE (calculated); Units: uatm; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: calculated with corrected pH for dye indicator impurities.
Parameter or Variable: PARTICULATE NITROGEN [NITROGEN - PARTICULATE] (measured); Units: mg/m^3; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Perkin Elmer 2400 elemental Analyzer.
Parameter or Variable: CHLOROPHYLL A (measured); Units: mg/m^3; Observation Category: in situ; Sampling Instrument: Niskin bottle and Chelsea Aqua 3 Fluorometer.
Parameter or Variable: PRIMARY PRODUCTIVITY (measured); Units: mg/m^3/hr; Observation Category: in situ; Sampling Instrument: Niskin bottle and in situ incubations; Sampling and Analyzing Method: Betascout Scintillation Counter.
Parameter or Variable: Inorganic Nutrients (measured); Units: uM; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: AAII Autoanalyzer.
Parameter or Variable: SIGMA-T (measured); Units: kg/m^3; Observation Category: in situ; Sampling Instrument: SBE29.
Parameter or Variable: PHOSPHORUS - TOTAL PARTICULATE PHOSPHORUS (TPP) (measured); Units: nmol; Observation Category: in situ; Sampling Instrument: Niskin bottle.
Parameter or Variable: NITROGEN - PARTICULATE (PN) (measured); Units: ug/L; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Elemental Analyzer CHN Perkin Elmer 2400.
Parameter or Variable: carbon to nitrogen ratio of particulate C to N (C/N particulate) (calculated); Units: mol to mol; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Elemental Analyzer CHN Perkin Elmer 2400.
Parameter or Variable: Total Organic Carbon (TOC) [CARBON - TOTAL ORGANIC] (measured); Units: umol; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Organic carbon analyzer Shimadzu TOC-VCSH.
Parameter or Variable: DISSOLVED ORGANIC CARBON (DOC) (measured); Units: umol; Observation Category: in situ; Sampling Instrument: Niskin bottle; Sampling and Analyzing Method: Organic carbon analyzer Shimadzu TOC-VCSH.
Parameter or Variable: Dissolved Organic Nitrogen (DON) (measured); Units: mmol; Observation Category: in situ; Sampling Instrument: Niskin bottle.
Parameter or Variable: DISSOLVED ORGANIC PHOSPHORUS (DOP) (measured); Units: mmol; Observation Category: in situ; Sampling Instrument: Niskin bottle.
Parameter or Variable: TOTAL PARTICULATE PHOSPHORUS (TPP) (measured); Units: nmol; Observation Category: in situ; Sampling Instrument: Niskin bottle.
Parameter or Variable: PARTICULATE INORGANIC PHOSPHORUS (PIP) (measured); Units: nmol; Observation Category: in situ; Sampling Instrument: Niskin bottle.
Parameter or Variable: PARTICULATE ORGANIC NITROGEN (PON) (measured); Units: ug/Kg; Observation Category: in situ; Sampling Instrument: Niskin bottle.
Parameter or Variable: PARTICULATE ORGANIC CARBON (POC) (measured); Units: ug/Kg; Observation Category: in situ; Sampling Instrument: Niskin bottle.
Parameter or Variable: PARTICULATE ORGANIC CARBON (measured); Units: ug/L; Observation Category: in situ; Sampling Instrument: Niskin bottle.
Parameter or Variable: PHAEOPIGMENTS (measured); Units: mg/m^3; Observation Category: in situ; Sampling Instrument: Niskin bottle.

Acquisition Information (collection)
Instrument	Niskin bottle
Platform	B/O HERMANO GINES

Last Modified: 2024-09-17T19:22:58Z
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Water temperature, salinity, dissolved oxygen and other parameters from Niskin-bottle water samples from research vessel Hermano Gines in the Cariaco Basin from 1995-11-8 through 2017-1-12 (NCEI Accession 0201747)

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