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     data   graph     files  public Dissolved inorganic nitrogen, chlorophyll-a, and primary production from bioassay experiments
during the R/V Hugh R. Sharp cruise HRS1414 in the Mid and South-Atlantic Bight in August of
2014 (DANCE project)
   ?     I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_734364

The Dataset's Variables and Attributes

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 Experimental seawater collection: For shipboard bioassay experiments, whole
seawater and resident biota were collected from ~4 m depth whilst underway at
~5 knots, using a trace-metal clean towfish system (Sedwick et al., 2011).
This seawater was used to fill two 60 L polyethylene carboys in parallel
inside a shipboard trace-metal clean container laboratory, after passing
through pre-cleaned 180 \u00b5m nylon screen to exclude larger organisms, then
subsequently used to fill the experimental incubation bottles (see below).
Three bioassay experiments were performed (Sedwick et al., 2018), for which
seawater was collected during three separate deployments of the towfish
system.

For bioassay experiment 1, seawater was collected on 1 August, 2014, between
16:55 and 17:35 local time, between 38.6053\u00b0N, 72.2534\u00b0W (start) and
38.5692\u00b0N, 72.2354\u00b0W (end). Single determinations of iron and
macronutrient concentrations in seawater from the towfish that was filtered
in-line through a 0.8/0.2 \u00b5m AcroPak Supor filter capsule (Pall) yielded
the following results:

Dissolved iron (DFe): 0.55 nM (start), 0.43 nM (end)

Dissolved nitrate+nitrite (NO3+NO2): 0.07 \u00b5M (start) 0.08 \u00b5M (end)

Dissolved phosphate (PO4): 0.19 \u00b5M (start), 0.20 \u00b5M (end)

Dissolved ammonium (NH4): not determined

For bioassay experiment 2, seawater was collected on 4 August, 2014, between
11:10 and 12:10 local time, between 38.3800\u00b0N, 72.4743\u00b0W (start) and
38.3847\u00b0N, 72.4761\u00b0W (end). Single determinations of iron and
macronutrient concentrations in seawater from the towfish that was filtered
in-line through a 0.8/0.2 \u00b5m AcroPak Supor filter capsule (Pall) yielded
the following results:

Dissolved iron (DFe): 0.33 nM (start), 0.32 nM (end)

Dissolved nitrate+nitrite (NO3+NO2): 0.07 \u00b5M (start) 0.07 \u00b5M (end)

Dissolved phosphate (PO4): 0.19 \u00b5M (start), 0.20 \u00b5M (end)

Dissolved ammonium (NH4): 0.01 \u00b5M (start), 0.01 \u00b5M (end)

For bioassay experiment 3, seawater was collected on 9 August, 2014, between
15:19 and 15:54 local time, between 35.5305\u00b0N, 72.2760\u00b0W (start) and
35.5165\u00b0N, 72.2703\u00b0W (end). Single determinations of iron and
macronutrient concentrations in seawater from the towfish that was filtered
in-line through a 0.8/0.2 \u00b5m AcroPak Supor filter capsule (Pall) yielded
the following results:

Dissolved iron (DFe): 0.89 nM (start), 0.90 nM (end)

Dissolved nitrate+nitrite (NO3+NO2): 0.05 \u00b5M (start) 0.07 \u00b5M (end)

Dissolved phosphate (PO4): not determined

Dissolved ammonium (NH4): 0.03 \u00b5M (start), 0.01 \u00b5M (end)

Bioassay experiment protocols: The shipboard bioassay experimental protocols
are described by Sedwick et al. (2018). For each experiment there were 6
different incubation treatments (control, iron, nitrate, nitrate+iron,
nitrate+iron+phosphate, rainwater), with triplicate bottles for each treatment
sampled at each of three timepoints. Each bottle was completely subsampled for
measurements of nutrients (NO3+NO2, NH4), chlorophyll-a and primary
productivity. For the initial (time = 0) measurements, the seawater that
remained in the 60 L polyethylene carboys after filling the incubation bottles
was transfered into a 20 L polyethylene carboy from which subsamples were
taken for measurements of NO3+NO2 after filtration through 0.8 \u00b5m pore
size AcroDisc Supor syringe filters (Pall), for chlorophyll-a after filtration
on to combusted 0.7 \u00b5m pore size GF/F filters (Whatman), and for
incubation with carbon-13 labeled bicarbonate for estimation of primary
production. For initial (t = 0) NH4 concentrations, we use mean values
measured in seawater sampled from the towfish outlet after in-line filtration
(see above).

Analytical procedures:

DFe: Filtered seawater samples were acidified at-sea to pH ~1.8 with Fisher
Optima grade ultrapure hydrochloric acid, and then stored at room temperature
until post-cruise analysis at Old Dominion University. Dissolved iron was
determined by flow injection analysis with colorimetric detection after in-
line preconcentration on resin-immobilized 8-hydroxyquinoline (Sedwick et al.,
2015), using a method modified from Measures et al. (1995). Analyses were
performed on a volumetric basis, so concentrations are reported in units of
nanomole liter-1 (nM). Analytical precision is estimated from multiple
(separate-day) determinations of the SAFe seawater reference materials, which
yield uncertainties (expressed as one relative standard deviation on the mean,
or one sigma) of ~15% at the concentration level of SAFe S seawater (0.090
nM), and ~10% at the concentration level of SAFe D2 seawater (0.90 nM). The
analytical limit of detection is estimated as the DFe concentration equivalent
to a peak area that is three times the standard deviation on the zero-loading
blank (manifold blank), which yields an estimated detection limit below 0.04
nM (Bowie et al., 2004). Blank contributions from the ammonium acetate sample
buffer solution (added on-line during analysis) and hydrochloric acid (added
after collection) are negligible.\t

NO3+NO2: Dissolved nitrate and nitrite was determined at sea using an Astoria
Pacific nutrient autoanalyzer using standard colorimetric methods with an
estimated detection limit of 0.14 \u00b5M (Parsons et al., 1984; Price and
Harrison, 1987). In surface waters, nitrate and nitrite were determined using
the same autoanalyzer equipped with a liquid waveguide capillary cell (World
Precision Instruments) (Zhang, 2000) to achieve an estimated detection limit
of 0.02 \u00b5M.

PO4: Dissolved phosphate was determined at sea using an Astoria Pacific
nutrient autoanalyzer using standard colorimetric methods with an estimated
detection limit of 0.03 \u00b5M (Parsons et al., 1984; Price and Harrison,
1987).\t\t

NH4: Dissolved ammonium was determined at sea using the manual
orthophthaldialdehyde method (Holmes et al., 1999), with an estimated
detection limit of 10 nM.

Chl-a: Chlorophyll-a was determined at sea using the non-acidification method
with a Turner 10-AU fluorometer (Welschmeyer, 1994).

PP: Primary production was measured using carbon stable istopes (Mulholland et
al., 2006).

Missing data identifiers:
ND = not determined (single measurement)
NR = not reported (contamination likely, only used for NH4 data)
attribute NC_GLOBAL awards_0_award_nid String 726327
attribute NC_GLOBAL awards_0_award_number String OCE-1260574
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1260574 (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 Henrietta N Edmonds
attribute NC_GLOBAL awards_0_program_manager_nid String 51517
attribute NC_GLOBAL awards_1_award_nid String 726333
attribute NC_GLOBAL awards_1_award_number String OCE-1260454
attribute NC_GLOBAL awards_1_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1260454 (external link)
attribute NC_GLOBAL awards_1_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_1_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_1_funding_source_nid String 355
attribute NC_GLOBAL awards_1_program_manager String Henrietta N Edmonds
attribute NC_GLOBAL awards_1_program_manager_nid String 51517
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Shipboard bioassay experiments
PI: Peter Sedwick
Data version 1: 2018-04-25
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 2018-04-25T17:07:36Z
attribute NC_GLOBAL date_modified String 2019-08-16T14:53:03Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.734364.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/734364 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Fluorometer
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Spectrofluorophotometer: NH4
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 734372
attribute NC_GLOBAL instruments_0_description String A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/113/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Fluorometer
attribute NC_GLOBAL instruments_0_instrument_nid String 484
attribute NC_GLOBAL instruments_0_supplied_name String Shimadzu RF1501
attribute NC_GLOBAL instruments_1_acronym String Fluorometer
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Fluorometer: Chl-a
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 734373
attribute NC_GLOBAL instruments_1_description String A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/113/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Fluorometer
attribute NC_GLOBAL instruments_1_instrument_nid String 484
attribute NC_GLOBAL instruments_1_supplied_name String Turner Designs 10-AU fluorometer
attribute NC_GLOBAL instruments_2_acronym String Nutrient Autoanalyzer
attribute NC_GLOBAL instruments_2_dataset_instrument_description String Macronutrient analysis: NO3+NO2, PO4
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 734370
attribute NC_GLOBAL instruments_2_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_2_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB04/ (external link)
attribute NC_GLOBAL instruments_2_instrument_name String Nutrient Autoanalyzer
attribute NC_GLOBAL instruments_2_instrument_nid String 558
attribute NC_GLOBAL instruments_2_supplied_name String Astoria Pacific nutrient autoanalyzer
attribute NC_GLOBAL instruments_3_acronym String Mass Spec
attribute NC_GLOBAL instruments_3_dataset_instrument_description String Mass Spectrometer (PP): Europa 20/20 isotope ratio mass spectrometer equipped with an automated nitrogen and carbon analysis for gas, solids, and liquids (ANCA-GSL) preparation module.
attribute NC_GLOBAL instruments_3_dataset_instrument_nid String 734374
attribute NC_GLOBAL instruments_3_description String General term for instruments used to measure the mass-to-charge ratio of ions; generally used to find the composition of a sample by generating a mass spectrum representing the masses of sample components.
attribute NC_GLOBAL instruments_3_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB16/ (external link)
attribute NC_GLOBAL instruments_3_instrument_name String Mass Spectrometer
attribute NC_GLOBAL instruments_3_instrument_nid String 685
attribute NC_GLOBAL instruments_3_supplied_name String Europa 20/20 isotope ratio mass spectrometer
attribute NC_GLOBAL keywords String ammonium, bco, bco-dmo, biological, chemical, chemistry, chl, chlorophyll, concentration, concentration_of_chlorophyll_in_sea_water, data, dataset, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Chemistry > Nitrate, erddap, experiment, management, mean, mean_Chl_a, mean_NH4, mean_NO3_NO2, mean_PP, mole, mole_concentration_of_nitrate_in_sea_water, n02, nh4, nitrate, nitrite, no2, no3, ocean, oceanography, oceans, office, preliminary, science, SD_Chl_a, SD_NH4, SD_NO3_NO2, SD_PP, sea, seawater, time, time2, treatment, water
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/734364/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/734364 (external link)
attribute NC_GLOBAL param_mapping String {'734364': {}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/734364/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Old Dominion University
attribute NC_GLOBAL people_0_affiliation_acronym String ODU
attribute NC_GLOBAL people_0_person_name String Peter N. Sedwick
attribute NC_GLOBAL people_0_person_nid String 51056
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 Old Dominion University
attribute NC_GLOBAL people_1_affiliation_acronym String ODU
attribute NC_GLOBAL people_1_person_name String Dr Margaret Mulholland
attribute NC_GLOBAL people_1_person_nid String 51386
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 Pennsylvania State University
attribute NC_GLOBAL people_2_affiliation_acronym String PSU
attribute NC_GLOBAL people_2_person_name String Dr Raymond Najjar
attribute NC_GLOBAL people_2_person_nid String 50813
attribute NC_GLOBAL people_2_role String Co-Principal Investigator
attribute NC_GLOBAL people_2_role_type String originator
attribute NC_GLOBAL people_3_affiliation String Old Dominion University
attribute NC_GLOBAL people_3_affiliation_acronym String ODU
attribute NC_GLOBAL people_3_person_name String Peter N. Sedwick
attribute NC_GLOBAL people_3_person_nid String 51056
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 Amber York
attribute NC_GLOBAL people_4_person_nid String 643627
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 DANCE
attribute NC_GLOBAL projects_0_acronym String DANCE
attribute NC_GLOBAL projects_0_description String NSF abstract:
Deposition of atmospheric nitrogen provides reactive nitrogen species that influence primary production in nitrogen-limited regions. Although it is generally assumed that these species in precipitation contributes substantially to anthropogenic nitrogen loadings in many coastal marine systems, its biological impact remains poorly understood. Scientists from Pennsylvania State University, William & Mary College, and Old Dominion University will carry out a process-oriented field and modeling effort to test the hypothesis that deposits of wet atmospheric nitrogen (i.e., precipitation) stimulate primary productivity and accumulation of algal biomass in coastal waters following summer storms and this effect exceeds the associated biogeochemical responses to wind-induced mixing and increased stratification caused by surface freshening in oligotrophic coastal waters of the eastern United States. To attain their goal, the researchers would perform a Lagrangian field experiment during the summer months in coastal waters located between Delaware Bay and the coastal Carolinas to determine the response of surface-layer biogeochemistry and biology to precipitation events, which will be identified and intercepted using radar and satellite data. As regards the modeling effort, a 1-D upper ocean mixing model and a 1-D biogeochemical upper-ocean will be calibrated by assimilating the field data obtained a part of the study using the adjoint method. The hypothesis will be tested using sensitivity studies with the calibrated model combined with in-situ data and results from the incubation experiments. Lastly, to provide regional and historical context for the field measurements and the associated 1-D modeling, linked regional atmospheric-oceanic biogeochemical modeling will be conducted.
Broader Impacts. Results from the study would be incorporated into class lectures for graduate courses on marine policy and marine biogeochemistry. One graduate student from Pennsylvania State University, one graduate student from the College of William and Mary, and one graduate and one undergraduate student from Old Dominion University would be supported and trained as part of this project.
attribute NC_GLOBAL projects_0_end_date String 2017-02
attribute NC_GLOBAL projects_0_geolocation String Offshore Mid-Atlantic Bight and northern South-Atlantic Bight between latitudes 31.60°N and 38.89°N, and longitudes 71.09°W and 75.16°W
attribute NC_GLOBAL projects_0_name String Collaborative Research: Impacts of atmospheric nitrogen deposition on the biogeochemistry of oligotrophic coastal waters
attribute NC_GLOBAL projects_0_project_nid String 726328
attribute NC_GLOBAL projects_0_start_date String 2013-03
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 Three bioassay experiments were conducted in August of 2014 during the R/V Hugh R. Sharp cruise HRS1414 which generated measurements of dissolved inorganic nitrogen, chlorophyll-a and primary productivity. Treatments included various nutrient (N,Fe,P) additions and rainwater.\r\n\r\nThis dataset was utilized in the following publication:\r\nSedwick. P. N., et al. \Assessing phytoplankton nutritional status and potential impact of wet deposition in seasonally oligotrophic waters of the Mid-Atlantic Bight.\ Geophysical Research Letters (2018): doi: 10.1002/2017GL075361
attribute NC_GLOBAL title String Dissolved inorganic nitrogen, chlorophyll-a, and primary production from bioassay experiments during the R/V Hugh R. Sharp cruise HRS1414 in the Mid and South-Atlantic Bight in August of 2014 (DANCE project)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable experiment   byte  
attribute experiment _FillValue byte 127
attribute experiment actual_range byte 1, 3
attribute experiment bcodmo_name String exp_id
attribute experiment description String bioassay experiment identifier (1, 2 or 3)
attribute experiment long_name String Experiment
attribute experiment units String unitless
variable treatment   String  
attribute treatment bcodmo_name String treatment
attribute treatment description String Experimental amendment: start = unamended starting seawater; C = control (unamended); N = +nitrate; Fe = +iron; N+Fe = +nitrate+iron; N+Fe+P = +nitrate+iron+phosphate; rain = +rainwater
attribute treatment long_name String Treatment
attribute treatment units String unitless
variable time2   float  
attribute time2 _FillValue float NaN
attribute time2 actual_range float 0.0, 67.35
attribute time2 bcodmo_name String incubation time
attribute time2 description String incubation time (elapsed time)
attribute time2 long_name String Time
attribute time2 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AZDRZZ01/ (external link)
attribute time2 units String hours
variable mean_NO3_NO2   float  
attribute mean_NO3_NO2 _FillValue float NaN
attribute mean_NO3_NO2 actual_range float 0.08, 2.64
attribute mean_NO3_NO2 bcodmo_name String NO3_NO2
attribute mean_NO3_NO2 colorBarMaximum double 50.0
attribute mean_NO3_NO2 colorBarMinimum double 0.0
attribute mean_NO3_NO2 description String Mean nitrate plus nitrite concentration
attribute mean_NO3_NO2 long_name String Mole Concentration Of Nitrate In Sea Water
attribute mean_NO3_NO2 units String micromoles per liter (umol/L)
variable SD_NO3_NO2   float  
attribute SD_NO3_NO2 _FillValue float NaN
attribute SD_NO3_NO2 actual_range float 0.0, 0.15
attribute SD_NO3_NO2 bcodmo_name String NO3_NO2
attribute SD_NO3_NO2 colorBarMaximum double 50.0
attribute SD_NO3_NO2 colorBarMinimum double 0.0
attribute SD_NO3_NO2 description String Standard deviation of mean nitrate plus nitrite concentration
attribute SD_NO3_NO2 long_name String SD NO3 NO2
attribute SD_NO3_NO2 units String micromoles per liter (umol/L)
variable mean_NH4   String  
attribute mean_NH4 bcodmo_name String Ammonium
attribute mean_NH4 description String Mean ammonium concentration
attribute mean_NH4 long_name String Mean NH4
attribute mean_NH4 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AMONAAZX/ (external link)
attribute mean_NH4 units String micromoles per liter (umol/L)
variable SD_NH4   float  
attribute SD_NH4 _FillValue float NaN
attribute SD_NH4 actual_range float 0.0, 0.29
attribute SD_NH4 bcodmo_name String Ammonium
attribute SD_NH4 colorBarMaximum double 50.0
attribute SD_NH4 colorBarMinimum double 0.0
attribute SD_NH4 description String Standard deviation of the mean ammonium concentration
attribute SD_NH4 long_name String SD NH4
attribute SD_NH4 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AMONAAZX/ (external link)
attribute SD_NH4 units String micromoles per liter (umol/L)
variable mean_Chl_a   float  
attribute mean_Chl_a _FillValue float NaN
attribute mean_Chl_a actual_range float 0.036, 0.735
attribute mean_Chl_a bcodmo_name String chlorophyll a
attribute mean_Chl_a colorBarMaximum double 30.0
attribute mean_Chl_a colorBarMinimum double 0.03
attribute mean_Chl_a colorBarScale String Log
attribute mean_Chl_a description String Mean chlorophyll-a concentration
attribute mean_Chl_a long_name String Concentration Of Chlorophyll In Sea Water
attribute mean_Chl_a nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/CPHLHPP1/ (external link)
attribute mean_Chl_a units String micrograms per liter (mg/L)
variable SD_Chl_a   float  
attribute SD_Chl_a _FillValue float NaN
attribute SD_Chl_a actual_range float 0.0, 0.095
attribute SD_Chl_a bcodmo_name String chlorophyll a
attribute SD_Chl_a colorBarMaximum double 50.0
attribute SD_Chl_a colorBarMinimum double 0.0
attribute SD_Chl_a description String Standard deviation of the mean Chl-a
attribute SD_Chl_a long_name String SD Chl A
attribute SD_Chl_a nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/CPHLHPP1/ (external link)
attribute SD_Chl_a units String micrograms per liter (mg/L)
variable mean_PP   float  
attribute mean_PP _FillValue float NaN
attribute mean_PP actual_range float 0.13, 17.81
attribute mean_PP bcodmo_name String Primary Production
attribute mean_PP description String mean primary productivity
attribute mean_PP long_name String Mean PP
attribute mean_PP units String micromoles C per liter per day (umol C/L/d)
variable SD_PP   float  
attribute SD_PP _FillValue float NaN
attribute SD_PP actual_range float 0.0, 0.53
attribute SD_PP bcodmo_name String Primary Production
attribute SD_PP colorBarMaximum double 50.0
attribute SD_PP colorBarMinimum double 0.0
attribute SD_PP description String Standard deviation of mean primary productivity
attribute SD_PP long_name String SD PP
attribute SD_PP units String micromoles C per liter per day (umol C/L/d)

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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