BCO-DMO ERDDAP
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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv
attribute NC_GLOBAL acquisition_description String Cultures:\\u00a0Pleurochrysis carterae\\u00a0cultures were maintained in\nexponential growth phase under axenic conditions in semi-continuous batch\nculture using L1-Si media prepared on 0.2 um-filtered, UV-sterilized,\nautoclaved seawater.\\u00a0 Cultures were acclimated to one of\nthree\\u00a0pCO2\\u00a0treatments for > 9 generations before experiments were\nperformed.\\u00a0 Cultures were maintained in an incubator at 16.5 +/- 0.5\ndegrees C and 470 umol photons/m-2/s\\u00a0PAR on a 14-10 light-dark cycle\nwhere the lights turned on at 6 am and turned off at 8 pm.\n \npCO2\\u00a0Treatments: Carbonate chemistry was manipulated by bubbling cultures\nand prepared media with 500 mL/min\\u00a0with 0.2 um-filtered 280, 380, or 750\nppm\\u00a0pCO2\\u00a0air.\\u00a0 The\\u00a0pCO2\\u00a0levels of the treatment air\nwere established using two mass flow controllers (Aalborg, Orangeburg, NY,\nUSA) for each treatment to precisely mix in-house compressed air and pure\nCO2\\u00a0(Maine Oxy, Auburn, ME, USA).\\u00a0 The in-house compressed air was\nstripped of CO2\\u00a0to less than 10 ppm CO2\\u00a0using a Puregas VCD\nCO2\\u00a0Adsorber (Puregas, LLC, Broomfield, CO, USA).\\u00a0\nThe\\u00a0pCO2\\u00a0of the gas mixtures was stable to +/- 8\nppm.\\u00a0\\u00a0pCO2\\u00a0values of the cultures may be different than the\ntarget levels due to biological activity.\n \nGrowth Cycle (14 d) Culture Dynamics Monitoring:\\u00a0 To understand the\nchemical and biological culture dynamics over an entire growth cycle (14 days,\nwhere days 1-9 represented exponential growth), the investigators took\nmeasurements of one culture from each\\u00a0pCO2\\u00a0treatment every day at\napproximately the same time of day for one full growth cycle.\\u00a0 Our pH\nelectrode malfunctioned on days 7 and 8, and the total alkalinity sample from\nthe 750 ppm treatment on day 8 was accidentally dropped and broken, so\ncalculations of full carbonate chemistry parameters for days 7 and 8 were not\npossible.\n \npH Measurements:\\u00a0 The pH of the cultures was measured using an\nOrionTM\\u00a0ROSSTM\\u00a0electrode connected to an Orion StarTM\\u00a0A211\nBenchtop pH meter (ThermoFisher Scientific, Waltham, MA, USA), calibrated with\nNBS buffers (EK Industries, Inc., Joliet, IL, USA) and corrected to the total\nscale using weekly spectrophotometric pH measurements of culture\nsamples.\\u00a0 Spectrophotometric pH measurements of 0.2 um-filtered culture\nsamples were made with 20 mM\\u00a0m-Cresol purple sodium salt indicator dye\n(Alfa Aesar, Ward Hill, MA, USA) using a Hitachi U-3010 spectrophotometer\n(Hitachi High-Technologies, Clarksburg, MD, USA) equipped with a water\ncirculated cell holder connected to a VWR 1160 water bath (VWR, Radnor, PA,\nUSA) set at 16.5 degrees C, holding a 1 cm quartz cell.\\u00a0 The method\nfollowed the procedure described by Clayton and Byrne (1993) and Dickson et\nal. (2007), using the refit equation of Liu et al. (2011), resulting in a\nresolution of +/- 0.004 pH units. \\u00a0\n \nTemperature:\\u00a0Temperature measurements were made with an\nOrionTM\\u00a0ROSSTM\\u00a0electrode connected to an Orion StarTM\\u00a0A211\nBenchtop pH meter (ThermoFisher Scientific, Waltham, MA, USA).\n \nSalinity:\\u00a0 Salinity was measured using an Acorn SALT 6 handheld salinity\nmeter (Oakton Instruments, Vernon Hills, IL, USA) with a resolution of +/- 0.1\nppt.\n \nin vivo Fluorescence:\\u00a0 Fluoresence was measured using a Turner 10-AU\nfluorometer (Turner Designs, Sunnyvale, CA, USA).\n \nCell density and cell diameter: Culture density and mean cell diameter were\nmeasured using a Moxi Z mini automated cell counter (ORFLO Technologies,\nKetchum, ID, USA), which has a coefficient of variation of 4%.\n \nParticulate Inorganic Carbon:\\u00a0 Bulk culture PIC analyses followed the\ntechnique of Fernandez et al. (1993): 10 mL culture samples were filtered onto\n0.4 um polycarbonate filters and rinsed with potassium borate buffer with the\npH adjusted to 8.0 to remove seawater calcium chloride.\\u00a0 Filters were\ncarefully moved to trace-metal free centrifuge tubes and digested with 5 mL of\n5% nitric acid.\\u00a0 The calcium concentration was measured using a Jobin\nYvon Ultima C inductively coupled plasma-atomic emission spectrometer (ICP-\nAES, HORIBA, Ltd., Kyoto, Japan).\\u00a0 Bulk culture PIC measurements were\ncorrected to PIC/cell\\u00a0using the corresponding cell density measurements.\n \nParticulate Organic Carbon:\\u00a0\\u00a0To determine the bulk culture POC\nconcentration, 10 mL of culture were filtered onto a pre-combusted Whatman\nGF/F filter, which was then fumed in 10 % HCl to remove inorganic\ncarbonates.\\u00a0 The dried filters were then analyzed on an ECS 4010 CHNSO\nAnalyzer (Costech Analytical Technologies, Valencia, CA, USA) by Bigelow\nAnalytical Services, East Boothbay, ME, USA.\\u00a0 Bulk culture POC\nmeasurements were corrected to POC/cell\\u00a0using the corresponding cell\ndensity measurements.\n \nNutrients:\\u00a0 Culture samples were filtered to 0.2 um to remove all algal\ncells and coccoliths, and samples were frozen prior to analysis.\\u00a0 Total N\n(nitrate + nitrite), nitrite, phosphate, and silicate were measured by\nContinuous Flow Analysis by Bigelow Analytical Services using a SEAL\nAutoAnalyzer 3 HR (SEAL Analytical Inc., Mequon, WI, USA). \\u00a0\n \nTotal Alkalinity:\\u00a0 Culture samples were filtered to 0.2 um to remove all\nalgal cells and coccoliths.\\u00a0 Total alkalinity was measured via titration\nwith 0.01 N HCl using a Metrohm Titrando 888 controlled by Tiamo software\n(Metrohm, Riverview, FL, USA) to perform automated Gran titrations of 4 mL\nsamples.\\u00a0 Titrations were corrected to Certified Reference Materials\n(supplied by the laboratory of Andrew Dickson, Scripps Institution of\nOceanography, La Jolla, CA, USA).
attribute NC_GLOBAL awards_0_award_nid String 514411
attribute NC_GLOBAL awards_0_award_number String OCE-1220068
attribute NC_GLOBAL awards_0_data_url String http://nsf.gov/awardsearch/showAward?AWD_ID=1220068 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String 14 Hour Culture Dynamics \n  W. Balch and D. Fields, PIs \n  Version 28 September 2016
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3  19 Dec 2019
attribute NC_GLOBAL date_created String 2016-09-29T19:23:16Z
attribute NC_GLOBAL date_modified String 2019-06-11T16:27:34Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.660244.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/660244 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Nutrient Autoanalyzer
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Continuous flow analysis performed by Bigelow Analytical Services (SEAL Analytical Inc., Mequon, WI, USA).
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 663848
attribute NC_GLOBAL instruments_0_description String Nutrient Autoanalyzer is a generic term used when specific type, make and model were not specified.  In general, a Nutrient Autoanalyzer is an automated flow-thru system for doing nutrient analysis (nitrate, ammonium, orthophosphate, and silicate) on seawater samples.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB04/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Nutrient Autoanalyzer
attribute NC_GLOBAL instruments_0_instrument_nid String 558
attribute NC_GLOBAL instruments_0_supplied_name String SEAL AutoAnalyzer 3 HR
attribute NC_GLOBAL instruments_1_acronym String pH Sensor
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Orion ROSS electrode was connected to an Orion Star A211 Benchtop pH meter (ThermoFisher Scientific, Waltham, MA, USA)
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 660256
attribute NC_GLOBAL instruments_1_description String General term for an instrument that measures the pH or how acidic or basic a solution is.
attribute NC_GLOBAL instruments_1_instrument_name String pH Sensor
attribute NC_GLOBAL instruments_1_instrument_nid String 674
attribute NC_GLOBAL instruments_1_supplied_name String Orion ROSS electrode
attribute NC_GLOBAL instruments_2_acronym String Automatic titrator
attribute NC_GLOBAL instruments_2_dataset_instrument_description String Automatic titrations controlled by Tiamo software (Metrohm, Riverview, FL, USA).
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 660261
attribute NC_GLOBAL instruments_2_description String Instruments that incrementally add quantified aliquots of a reagent to a sample until the end-point of a chemical reaction is reached.
attribute NC_GLOBAL instruments_2_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB12/ (external link)
attribute NC_GLOBAL instruments_2_instrument_name String Automatic titrator
attribute NC_GLOBAL instruments_2_instrument_nid String 682
attribute NC_GLOBAL instruments_2_supplied_name String Metrohm Titrando 888
attribute NC_GLOBAL instruments_3_acronym String Spectrophotometer
attribute NC_GLOBAL instruments_3_dataset_instrument_description String Spectrophotometric pH measurements were taken of culture samples
attribute NC_GLOBAL instruments_3_dataset_instrument_nid String 660257
attribute NC_GLOBAL instruments_3_description String An instrument used to measure the relative absorption of electromagnetic radiation of different wavelengths in the near infra-red, visible and ultraviolet wavebands by samples.
attribute NC_GLOBAL instruments_3_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB20/ (external link)
attribute NC_GLOBAL instruments_3_instrument_name String Spectrophotometer
attribute NC_GLOBAL instruments_3_instrument_nid String 707
attribute NC_GLOBAL instruments_3_supplied_name String Hitachi U-3010 spectrophotometer
attribute NC_GLOBAL instruments_4_acronym String Salinity Sensor
attribute NC_GLOBAL instruments_4_dataset_instrument_description String Salinity measured using this instrument with a resolution of +/- 0.1 ppt (Oakton Instruments, Vernon Hills, IL, USA)
attribute NC_GLOBAL instruments_4_dataset_instrument_nid String 660258
attribute NC_GLOBAL instruments_4_description String Category of instrument that simultaneously measures electrical conductivity and temperature in the water column to provide temperature and salinity data.
attribute NC_GLOBAL instruments_4_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/350/ (external link)
attribute NC_GLOBAL instruments_4_instrument_name String Salinity Sensor
attribute NC_GLOBAL instruments_4_instrument_nid String 710
attribute NC_GLOBAL instruments_4_supplied_name String Acorn SALT 6 handheld salinity meter
attribute NC_GLOBAL instruments_5_acronym String MFC
attribute NC_GLOBAL instruments_5_dataset_instrument_description String Indicate and control set flow rates of gases. Manufactured in Orangeburg, NY USA.
attribute NC_GLOBAL instruments_5_dataset_instrument_nid String 660253
attribute NC_GLOBAL instruments_5_description String Mass Flow Controller (MFC) - A device used to measure and control the flow of fluids and gases
attribute NC_GLOBAL instruments_5_instrument_name String Mass Flow Controller
attribute NC_GLOBAL instruments_5_instrument_nid String 712
attribute NC_GLOBAL instruments_5_supplied_name String Aalborg Mass Flow Controller
attribute NC_GLOBAL instruments_6_acronym String ICP-OES
attribute NC_GLOBAL instruments_6_dataset_instrument_description String Calcium concentration measured (ICP-AES, HORIBA, Ltd., Kyoto, Japan).
attribute NC_GLOBAL instruments_6_dataset_instrument_nid String 660259
attribute NC_GLOBAL instruments_6_description String Also referred to as an Inductively coupled plasma atomic emission spectroscope (ICP-AES). These instruments pass nebulised samples into an inductively-coupled gas plasma (8-10000 K) where they are atomised and excited. The de-excitation optical emissions at characteristic wavelengths are spectroscopically analysed. It is often used in the detection of trace metals.
attribute NC_GLOBAL instruments_6_instrument_name String Inductively Coupled Plasma Optical Emission Spectrometer
attribute NC_GLOBAL instruments_6_instrument_nid String 639924
attribute NC_GLOBAL instruments_6_supplied_name String Jobin Yvon Ultima C
attribute NC_GLOBAL instruments_7_acronym String CO2 Adsorber
attribute NC_GLOBAL instruments_7_dataset_instrument_description String Instrument stripped compressed air of CO2
attribute NC_GLOBAL instruments_7_dataset_instrument_nid String 660254
attribute NC_GLOBAL instruments_7_description String CO2 Adsorber - an instrument designed to remove CO2 and moisture from compressed air.
attribute NC_GLOBAL instruments_7_instrument_name String CO2 Adsorber
attribute NC_GLOBAL instruments_7_instrument_nid String 651526
attribute NC_GLOBAL instruments_7_supplied_name String Puregas VCD CO2 Adsorber
attribute NC_GLOBAL instruments_8_acronym String ACC
attribute NC_GLOBAL instruments_8_dataset_instrument_description String Measures culture density
attribute NC_GLOBAL instruments_8_dataset_instrument_nid String 660255
attribute NC_GLOBAL instruments_8_description String Automated Cell Counter (ACC) - a tool used for counting live and/or dead cells in a culture.  It can also be used to size particles.
attribute NC_GLOBAL instruments_8_instrument_name String Automated Cell Counter
attribute NC_GLOBAL instruments_8_instrument_nid String 651528
attribute NC_GLOBAL instruments_8_supplied_name String Moxi Z Automated Cell Counter
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, calcite, carbon, carbon dioxide, carbonate, cell, cell_density, chemical, chemistry, co2, co3, concentration, cper, cperm, data, dataset, date, day, density, diameter, dic, dioxide, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Nitrate, Earth Science > Oceans > Ocean Chemistry > pH, Earth Science > Oceans > Ocean Chemistry > Phosphate, Earth Science > Oceans > Salinity/Density > Salinity, erddap, fluorescence, fluorescencePerCellDensity, hco3, inVivo_fluorescence, iso, management, mass, mass_concentration_of_phosphate_in_sea_water, mean, mean_cellDiameter, mean_SiO4, mole, mole_concentration_of_nitrate_in_sea_water, mole_concentration_of_nitrite_in_sea_water, n02, nitrate, nitrite, NO2, no3, NO3_NO2, ocean, oceanography, oceans, office, omega, omega_calcite, pCO2, pCO2_treatment, per, phosphate, pic, PIC_pgCPerCell, PIC_ugCPerL, po4, poc, POC_pgCPerCell, POC_ugCPermL, practical, preliminary, reported, salinity, scale, science, sea, sea_water_ph_reported_on_total_scale, sea_water_practical_salinity, seawater, SiO4, temperature, time, time2, total, treatment, vivo, water
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/660244/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/660244 (external link)
attribute NC_GLOBAL param_mapping String {'660244': {'ISO_DateTime_UTC': 'flag - time'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/660244/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Bigelow Laboratory for Ocean Sciences
attribute NC_GLOBAL people_0_person_name String William M. Balch
attribute NC_GLOBAL people_0_person_nid String 50650
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String Bigelow Laboratory for Ocean Sciences
attribute NC_GLOBAL people_1_person_name String David Fields
attribute NC_GLOBAL people_1_person_nid String 51141
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String Bigelow Laboratory for Ocean Sciences
attribute NC_GLOBAL people_2_person_name String William M. Balch
attribute NC_GLOBAL people_2_person_nid String 50650
attribute NC_GLOBAL people_2_role String Contact
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL people_3_affiliation String Bigelow Laboratory for Ocean Sciences
attribute NC_GLOBAL people_3_person_name String Meredith White
attribute NC_GLOBAL people_3_person_nid String 514420
attribute NC_GLOBAL people_3_role String Contact
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL people_4_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_4_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_4_person_name String Hannah Ake
attribute NC_GLOBAL people_4_person_nid String 650173
attribute NC_GLOBAL people_4_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_4_role_type String related
attribute NC_GLOBAL project String OA_Copes_Coccoliths
attribute NC_GLOBAL projects_0_acronym String OA_Copes_Coccoliths
attribute NC_GLOBAL projects_0_description String (Extracted from the NSF award abstract)\nOcean acidification is one of the most pressing marine science issues of our time, with potential biological impacts spanning all marine phyla and potential societal impacts affecting man's relationship to the sea. Rising levels of atmospheric pCO2 are increasing the acidity of the world oceans. It is generally held that average surface ocean pH has already declined by 0.1 pH units relative to the pre-industrial level (Orr et al., 2005), and is projected to decrease 0.3 to 0.46 units by the end of this century, depending on CO2 emission scenarios (Caldeira and Wickett, 2005). The overall goal of this research is to parameterize how changes in pCO2 levels could alter the biological and alkalinity pumps of the world ocean. Specifically, the direct and indirect effects of ocean acidification will be examined within a simple, controlled predator/prey system containing a single prey phytoplankton species (the coccolithophore, Emiliania huxleyi) and a single predator (the oceanic metazoan grazer, Calanus finmarchicus). The experiments are designed to elucidate both direct effects (i.e. effects of ocean acidification on the individual organisms only) and interactive effects (i.e. effects on the combined predator/prey system). Interactive experiments with phytoplankton prey and zooplankton predator are a critical starting point for predicting the overall impact of ocean acidification in marine ecosystems. To meet these goals, a state-of-the-art facility will be constructed with growth chambers that are calibrated and have highly-controlled pH and alkalinity levels. The strength of this approach lies in meticulous calibration and redundant measurements that will be made to ensure that conditions within the chambers are well described and tightly monitored for DIC levels. Growth and calcification rates in coccolithophores and the developmental rates, morphological and behavioral effects on copepods will be measured. The PIC and POC in the algae and the excreted fecal pellets will be monitored for changes in the PIC/POC ratio, a key parameter for modeling feedback mechanisms for rising pCO2 levels. In addition, 14C experiments are planned to measure calcification rates in coccolithophores and dissolution rates as a result of grazing. These key experiments will verify closure in the mass balance of PIC, allowing the determination of actual dissolution rates of PIC within the guts of copepod grazers.
attribute NC_GLOBAL projects_0_end_date String 2015-07
attribute NC_GLOBAL projects_0_geolocation String Laboratory experiments;  East Boothbay, Maine
attribute NC_GLOBAL projects_0_name String Effects of ocean acidification on Emiliania huxleyi and Calanus finmarchicus; insights into the oceanic alkalinity and biological carbon pumps
attribute NC_GLOBAL projects_0_project_nid String 514415
attribute NC_GLOBAL projects_0_start_date String 2012-08
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Pleurochrysis carterae growth cycle culture dynamics analyzed at Bigelow Laboratory from 2013 (OA Copes Coccoliths project)
attribute NC_GLOBAL time_coverage_end String 2014-05-06T11:31:00Z
attribute NC_GLOBAL time_coverage_start String 2014-04-22T09:47:00Z
attribute NC_GLOBAL title String [Pleurochrysis carterae growth cycle culture dynamics] - Pleurochrysis carterae growth cycle culture dynamics analyzed at Bigelow Laboratory from 2013 (OA Copes Coccoliths project) (Effects of ocean acidification on Emiliania huxleyi and Calanus finmarchicus; insights into the oceanic alkalinity and biological carbon pumps)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable pCO2_treatment String
attribute pCO2_treatment bcodmo_name String treatment
attribute pCO2_treatment description String The independent variable; one of three pCO2 levels (280 ppm, 380 ppm, or 750 ppm). These treatment levels are nominal values as they represent the target pCO2 for each treatment. Within each pCO2 treatment there are 14 days worth of culture measurements for the algal cultures. Measurements of the media (without algae) were made on days 0 and 14. Only chemical measurements were made on the media not biological measurements.
attribute pCO2_treatment long_name String P CO2 Treatment
attribute pCO2_treatment units String parts per million (ppm)
variable date String
attribute date bcodmo_name String date
attribute date description String The date the measurement was taken; YYYY/mm/dd
attribute date long_name String Date
attribute date nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute date time_precision String 1970-01-01
attribute date units String unitless
variable day byte
attribute day _FillValue byte 127
attribute day actual_range byte 0, 14
attribute day bcodmo_name String day
attribute day description String The time elapsed since the beginning of the growth cycle.
attribute day long_name String Day
attribute day nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/DAYXXXXX/ (external link)
attribute day units String unitless
variable time2 String
attribute time2 bcodmo_name String time
attribute time2 description String The actual time that the measurements for that timepoint began; HH:MM
attribute time2 long_name String Time
attribute time2 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/ (external link)
attribute time2 units String unitless
variable pH float
attribute pH _FillValue float NaN
attribute pH actual_range float 7.779, 8.502
attribute pH bcodmo_name String pH
attribute pH colorBarMaximum double 9.0
attribute pH colorBarMinimum double 7.0
attribute pH description String pH measured on the total scale.
attribute pH long_name String Sea Water Ph Reported On Total Scale
attribute pH nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PHXXZZXX/ (external link)
attribute pH units String pH
variable temperature float
attribute temperature _FillValue float NaN
attribute temperature actual_range float 15.6, 17.3
attribute temperature bcodmo_name String temperature
attribute temperature description String Temperature
attribute temperature long_name String Temperature
attribute temperature units String celsius
variable salinity float
attribute salinity _FillValue float NaN
attribute salinity actual_range float 31.2, 32.6
attribute salinity bcodmo_name String sal
attribute salinity colorBarMaximum double 37.0
attribute salinity colorBarMinimum double 32.0
attribute salinity description String Salinity
attribute salinity long_name String Sea Water Practical Salinity
attribute salinity nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PSALST01/ (external link)
attribute salinity units String practical salnity unit (PSU)
variable inVivo_fluorescence float
attribute inVivo_fluorescence _FillValue float NaN
attribute inVivo_fluorescence actual_range float 1.19, 110.0
attribute inVivo_fluorescence bcodmo_name String fluorescence
attribute inVivo_fluorescence description String fluorescence to indicate relative chlorophyll-a concentration.
attribute inVivo_fluorescence long_name String In Vivo Fluorescence
attribute inVivo_fluorescence nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/CPHLPM01/ (external link)
attribute inVivo_fluorescence units String relative fluorescence units
variable cell_density int
attribute cell_density _FillValue int 2147483647
attribute cell_density actual_range int 11400, 1340000
attribute cell_density bcodmo_name String cell_concentration
attribute cell_density description String cell density of the culture, as measured by the Moxi Z Automated Cell Counter.
attribute cell_density long_name String Cell Density
attribute cell_density units String cells per milliliter (cells/mL)
variable mean_cellDiameter float
attribute mean_cellDiameter _FillValue float NaN
attribute mean_cellDiameter actual_range float 8.44, 10.085
attribute mean_cellDiameter bcodmo_name String unknown
attribute mean_cellDiameter description String mean cell diameter as measured by the Moxi Z Automated Cell Counter.
attribute mean_cellDiameter long_name String Mean Cell Diameter
attribute mean_cellDiameter units String microns (um)
variable fluorescencePerCellDensity float
attribute fluorescencePerCellDensity _FillValue float NaN
attribute fluorescencePerCellDensity actual_range float 7.0E-5, 1.1E-4
attribute fluorescencePerCellDensity bcodmo_name String fluorescence
attribute fluorescencePerCellDensity description String Fluorescence divided by cell density to give an estimate of fluorescence per cell.
attribute fluorescencePerCellDensity long_name String Fluorescence Per Cell Density
attribute fluorescencePerCellDensity nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/CPHLPM01/ (external link)
attribute fluorescencePerCellDensity units String cells per milliliter (cells/mL)-1
variable PIC_ugCPerL float
attribute PIC_ugCPerL _FillValue float NaN
attribute PIC_ugCPerL actual_range float 130.0, 11421.0
attribute PIC_ugCPerL bcodmo_name String PIC
attribute PIC_ugCPerL description String Particulate inorganic carbon concentration
attribute PIC_ugCPerL long_name String PIC Ug CPer L
attribute PIC_ugCPerL units String ugC/L
variable PIC_pgCPerCell float
attribute PIC_pgCPerCell _FillValue float NaN
attribute PIC_pgCPerCell actual_range float 4.93, 16.26
attribute PIC_pgCPerCell bcodmo_name String PIC
attribute PIC_pgCPerCell description String Particulate inorganic carbon concentration with unit conversion to pg/mL and divided by the cell density to give pg C per cell.
attribute PIC_pgCPerCell long_name String PIC Pg CPer Cell
attribute PIC_pgCPerCell units String pgC/cell
variable POC_ugCPermL float
attribute POC_ugCPermL _FillValue float NaN
attribute POC_ugCPermL actual_range float 0.67, 90.1
attribute POC_ugCPermL bcodmo_name String POC
attribute POC_ugCPermL description String Particulate organic carbon concentration
attribute POC_ugCPermL long_name String POC Ug CPerm L
attribute POC_ugCPermL nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/CORGCAP1/ (external link)
attribute POC_ugCPermL units String ugC/mL
variable POC_pgCPerCell float
attribute POC_pgCPerCell _FillValue float NaN
attribute POC_pgCPerCell actual_range float 38.74, 90.2
attribute POC_pgCPerCell bcodmo_name String POC
attribute POC_pgCPerCell description String Particulate organic carbon concentration with unit conversion to pg/mL and divided by the cell density to give pg C per cell.
attribute POC_pgCPerCell long_name String POC Pg CPer Cell
attribute POC_pgCPerCell nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/CORGCAP1/ (external link)
attribute POC_pgCPerCell units String pgC/cell
variable NO2 float
attribute NO2 _FillValue float NaN
attribute NO2 actual_range float 0.1, 11.9
attribute NO2 bcodmo_name String NO2
attribute NO2 colorBarMaximum double 1.0
attribute NO2 colorBarMinimum double 0.0
attribute NO2 description String Nitrite concentration.
attribute NO2 long_name String Mole Concentration Of Nitrite In Sea Water
attribute NO2 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/NTRIAAZX/ (external link)
attribute NO2 units String umol/kg
variable NO3_NO2 float
attribute NO3_NO2 _FillValue float NaN
attribute NO3_NO2 actual_range float 0.0, 919.9
attribute NO3_NO2 bcodmo_name String NO3_NO2
attribute NO3_NO2 colorBarMaximum double 50.0
attribute NO3_NO2 colorBarMinimum double 0.0
attribute NO3_NO2 description String Nitrate + Nitrite concentration.
attribute NO3_NO2 long_name String Mole Concentration Of Nitrate In Sea Water
attribute NO3_NO2 units String umol/kg
variable NO3 float
attribute NO3 _FillValue float NaN
attribute NO3 actual_range float 0.0, 919.7
attribute NO3 bcodmo_name String NO3
attribute NO3 colorBarMaximum double 50.0
attribute NO3 colorBarMinimum double 0.0
attribute NO3 description String Nitrate concentration calculated from the total N and nitrite measurements.
attribute NO3 long_name String Mole Concentration Of Nitrate In Sea Water
attribute NO3 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/NTRAIGGS/ (external link)
attribute NO3 units String umol/kg
variable PO4 float
attribute PO4 _FillValue float NaN
attribute PO4 actual_range float 0.4, 27.8
attribute PO4 bcodmo_name String PO4
attribute PO4 description String Phosphate concentration.
attribute PO4 long_name String Mass Concentration Of Phosphate In Sea Water
attribute PO4 units String umol/kg
variable SiO4 float
attribute SiO4 _FillValue float NaN
attribute SiO4 actual_range float 19.14, 21.9
attribute SiO4 bcodmo_name String SiO4
attribute SiO4 description String Silicate concentration.
attribute SiO4 long_name String Si O4
attribute SiO4 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/SLCAAAZX/ (external link)
attribute SiO4 units String umol/kg
variable mean_SiO4 float
attribute mean_SiO4 _FillValue float NaN
attribute mean_SiO4 actual_range float 20.6, 20.6
attribute mean_SiO4 bcodmo_name String SiO4
attribute mean_SiO4 description String Silicate concentration estimated as the average of the values from all the measured values. Biologically there should be no change in silicate concentration because coccolithophores do not take up silicate. However silicate values are needed to calculate the carbonate chemistry parameters in CO2sys so the average value was used for days when silicate concentrations were not measured.
attribute mean_SiO4 long_name String Mean Si O4
attribute mean_SiO4 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/SLCAAAZX/ (external link)
attribute mean_SiO4 units String umol/kg
variable TA float
attribute TA _FillValue float NaN
attribute TA actual_range float 969.3, 2331.2
attribute TA bcodmo_name String TALK
attribute TA description String Total alkalinity
attribute TA long_name String TA
attribute TA nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/MDMAP014/ (external link)
attribute TA units String ueq/kg
variable DIC float
attribute DIC _FillValue float NaN
attribute DIC actual_range float 847.5, 2192.0
attribute DIC bcodmo_name String DIC
attribute DIC description String Dissolved inorganic carbon concentration calculated using CO2sys.
attribute DIC long_name String DIC
attribute DIC units String umol/kg
variable pCO2 float
attribute pCO2 _FillValue float NaN
attribute pCO2 actual_range float 70.9, 793.7
attribute pCO2 bcodmo_name String pCO2
attribute pCO2 description String Partial pressure of carbon dioxide in the water calculated using CO2sys.  This calculated value more accurately represents the pCO2 of the culture than the nominal treatment value which represents the pCO2 of the air bubbled into the culture.
attribute pCO2 long_name String P CO2
attribute pCO2 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PCO2C101/ (external link)
attribute pCO2 units String uatm
variable HCO3 float
attribute HCO3 _FillValue float NaN
attribute HCO3 actual_range float 781.7, 2067.7
attribute HCO3 bcodmo_name String bicarbonate
attribute HCO3 description String Bicarbonate concentration calculated using CO2sys.
attribute HCO3 long_name String HCO3
attribute HCO3 units String umol/kg
variable CO3 float
attribute CO3 _FillValue float NaN
attribute CO3 actual_range float 59.3, 267.3
attribute CO3 bcodmo_name String carbonate
attribute CO3 description String Carbonate concentration calculated using CO2sys.
attribute CO3 long_name String CO3
attribute CO3 units String umol/kg
variable CO2 float
attribute CO2 _FillValue float NaN
attribute CO2 actual_range float 2.5, 28.5
attribute CO2 bcodmo_name String pCO2
attribute CO2 description String Carbon dioxide concentration calculated using CO2sys.
attribute CO2 long_name String CO2
attribute CO2 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PCO2C101/ (external link)
attribute CO2 units String umol/kg
variable omega_calcite float
attribute omega_calcite _FillValue float NaN
attribute omega_calcite actual_range float 1.44, 6.51
attribute omega_calcite bcodmo_name String Calcite Saturation State
attribute omega_calcite description String Saturation state of calcium carbonate with respect to calcite calculated using CO2sys.
attribute omega_calcite long_name String Omega Calcite
attribute omega_calcite units String unitless
variable time double
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.39816002E9, 1.39937586E9
attribute time axis String T
attribute time bcodmo_name String ISO_DateTime_UTC
attribute time description String Date/Time (UTC) ISO formatted; YYYY/mm/dd;HH:MM:SS
attribute time ioos_category String Time
attribute time long_name String ISO Date Time UTC
attribute time nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/ (external link)
attribute time source_name String ISO_DateTime_UTC
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time time_precision String 1970-01-01T00:00:00Z
attribute time units String seconds since 1970-01-01T00:00:00Z

 
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