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   set  data   graph     files  public Inorganic nutrients (PO4, SiOH4, NO3, NO2, NH4) from R/V Knorr cruise KN207-01 from the
southern tip of Nova Scotia to Bermuda in 2012 (SargassoSeaLipids project)
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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,.esriCsv,.geoJson
attribute NC_GLOBAL acquisition_description String Seawater was collected with Niskin bottles. Samples were pre-filtered though a
0.2 micrometer filter into and acid-washed HDPE bottle and frozen at -20
degrees C. Samples were shipped frozen to the University of Washington Marine
Chemistry Laboratory. Samples were analyzed in January 2013 on a Technicon
AAII Autoanalyzer.

Analytical methods (from
[http://www.ocean.washington.edu/story/Marine+Chemistry+Laboratory](\\"http://www.ocean.washington.edu/story/Marine+Chemistry+Laboratory\\")):
Analysis | Method References | EPA/SM# | NELAC Code | 2011
Detection_Limits
---|---|---|---|---
PO4 | UNESCO(1994) | EPA 365.5_1.4_1997 | WM920270 | 0.03uM
SiOH4 | UNESCO(1994) | EPA 366 | WM920240 | 0.76uM\u00a0
NO3 | UNESCO(1994) | EPA 353.4_2_199 | 10068209 | 0.08uM
NO2 | UNESCO(1994) | EPA 353.4_2_1997 | 10068209 | 0.01uM
NH4 | UNESCO(1994) | EPA 349 | WM920220 | 0.07uM
Total N | Valderrama(1981) | SM 4500-P J | WM920270 | 1.08uM
Total P | Valderrama(1981) | SM 4500-P J | WM920270 | 0.04uM
attribute NC_GLOBAL awards_0_award_nid String 54717
attribute NC_GLOBAL awards_0_award_number String OCE-1031143
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1031143 (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 Donald L. Rice
attribute NC_GLOBAL awards_0_program_manager_nid String 51467
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String BLATZ-II inorganic nutrient analysis
PI: Ben Van Mooy (WHOI)
Version: 28 June 2013
NOTES: PO4 samples were NOT pre-concentrated with MAGIC;
BCO-DMO added date and lat/lon from CTD data.
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 2013-06-28T20:57:57Z
attribute NC_GLOBAL date_modified String 2019-11-12T19:57:28Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.3985.1
attribute NC_GLOBAL Easternmost_Easting double -65.6853
attribute NC_GLOBAL geospatial_lat_max double 41.4503
attribute NC_GLOBAL geospatial_lat_min double 32.9057
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -65.6853
attribute NC_GLOBAL geospatial_lon_min double -70.7507
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 200.0
attribute NC_GLOBAL geospatial_vertical_min double 1.0
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/3985 (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 Samples analyzed by Kathy Krogslund at University of Washington in January 2013 on Technicon AAII autoanalyzer.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 6218
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 Nutrient Autoanalyzer
attribute NC_GLOBAL keywords String ammonia, ammonium, bco, bco-dmo, biological, cast, chemical, chemistry, concentration, data, dataset, day, day_cast, depth, depth2, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Ammonia, Earth Science > Oceans > Ocean Chemistry > Nitrate, Earth Science > Oceans > Ocean Chemistry > Phosphate, erddap, latitude, longitude, management, mass, mass_concentration_of_phosphate_in_sea_water, mole, mole_concentration_of_ammonium_in_sea_water, mole_concentration_of_nitrate_in_sea_water, mole_concentration_of_nitrite_in_sea_water, month, month_cast, n02, nh4, nitrate, nitrite, NO2, no3, ocean, oceanography, oceans, office, oh4, phosphate, po4, preliminary, science, sea, seawater, SiOH4, water, year
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/3985/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/3985 (external link)
attribute NC_GLOBAL Northernmost_Northing double 41.4503
attribute NC_GLOBAL param_mapping String {'3985': {'depth': 'flag - depth', 'lat_nom': 'flag - latitude', 'lon_nom': 'flag - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/3985/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_0_affiliation_acronym String WHOI
attribute NC_GLOBAL people_0_person_name String Benjamin A.S. Van Mooy
attribute NC_GLOBAL people_0_person_nid String 50975
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 Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_1_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_1_person_name String Shannon Rauch
attribute NC_GLOBAL people_1_person_nid String 51498
attribute NC_GLOBAL people_1_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_1_role_type String related
attribute NC_GLOBAL project String SargassoSeaLipids
attribute NC_GLOBAL projects_0_acronym String SargassoSeaLipids
attribute NC_GLOBAL projects_0_description String Intact polar diacyglycerols (IP-DAGs) are the fatty-acid bearing lipid molecules that compose bacterial and eukaryotic cell membranes. As such, they are one of the most abundant classes of lipid molecules in plankton, and play a major role in the marine carbon cycle. However, until very recently, the molecular diversity of IP-DAGs was poorly understood; the structural identity and characteristics of IP-DAGs were inferred almost exclusively from their constituent fatty acids. These non-phosphorus containing IP-DAGs were largely unknown to chemical oceanography. In contrast, phospholipids, which have been the focus of considerable research, compose a disproportionally small fraction of total IP-DAGs. But we still lack even a cursory understanding of biochemical functions and geochemical fates of non-phosphorus IP-DAGs. Given that these molecules are among the most abundant lipid molecules on the planet, this represents a profound and unexpected gap in our understanding the marine carbon and phosphorus cycles.
In this project, researchers at the Woods Hole Oceanographic Institution will launch a pioneering study of these poorly understood compounds. Their approach will be guided by four questions: (1) How do non-phosphorus lipids contribute to variations in the C:N:P of particulate organic matter in the Sargasso Sea? (2) What are the relative degradation rates of phospholipids and non-phosphorus lipids in surface waters? (3) Which groups of microbes utilize the carbon and phosphorus from different IP-DAGs? (4) What are the relative contributions of different IP-DAGs to particulate organic matter export to the deep-sea?
These questions will be answered by using sophisticated HPLC/MS analyses and novel isotope tracing approaches in conjunction with long-standing methods for measuring the C:N:P of plankton and determining the degradation rates of organic molecules. The research team will establish whether these newly-recognized sulfolipids and betaine lipids molecules are a quantitatively important biochemical option for phytoplankton to affect flexible C:N:P stoichiometry in the face of nutrient stress. They will also elucidate the degradation rate, microbial fate, and export potential of the carbon and phosphorus from IP-DAGs. This will shed new light on the broader roles of these molecules in the cycling of these elements by the planktonic community.
This project contains components that are specifically designed to meet the NSF criteria for "advancing discovery and understanding while promoting teaching, training and learning." The project will support the training of a graduate student and postdoctoral fellow. In addition, the research team will work with the non-profit Zephyr Foundation in Woods Hole to design educational 'units' based on the team's research that will be tailored to student in grades 6 - 12. The Foundation will present these units as part of their hands-on marine science field trip series that is delivered to over 200 students and their teachers per year.
attribute NC_GLOBAL projects_0_end_date String 2013-08
attribute NC_GLOBAL projects_0_geolocation String Sargasso Sea
attribute NC_GLOBAL projects_0_name String Biogeochemical Impact and Fate of Non-phosphorus Membrane Lipids in the Sargasso Sea
attribute NC_GLOBAL projects_0_project_nid String 2189
attribute NC_GLOBAL projects_0_start_date String 2010-09
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 Southernmost_Northing double 32.9057
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String year
attribute NC_GLOBAL summary String Inorganic nutrients (PO4, SiOH4, NO3, NO2, NH4) from R/V Knorr cruise KN207-01 from the southern tip of Nova Scotia to Bermuda in 2012.
attribute NC_GLOBAL title String Inorganic nutrients (PO4, SiOH4, NO3, NO2, NH4) from R/V Knorr cruise KN207-01 from the southern tip of Nova Scotia to Bermuda in 2012 (SargassoSeaLipids project)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -70.7507
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable cast   byte  
attribute cast _FillValue byte 127
attribute cast actual_range byte 4, 79
attribute cast bcodmo_name String cast
attribute cast description String CTD cast number.
attribute cast long_name String Cast
attribute cast units String integer
variable month_cast   String  
attribute month_cast bcodmo_name String month_gmt
attribute month_cast description String 2-digit month of the cast.
attribute month_cast long_name String Month Cast
attribute month_cast units String mm (01 to 12)
variable day_cast   String  
attribute day_cast bcodmo_name String day_gmt
attribute day_cast description String 2-digit day of month of the cast.
attribute day_cast long_name String Day Cast
attribute day_cast units String dd (01 to 31)
variable year   short  
attribute year _FillValue short 32767
attribute year actual_range short 2012, 2012
attribute year bcodmo_name String year
attribute year description String 4-digit year in YYYY format.
attribute year long_name String Year
attribute year nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/ (external link)
attribute year units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 32.9057, 41.4503
attribute latitude axis String Y
attribute latitude bcodmo_name String lat_n
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String Nominal latitude. Values indicate latitude at start of CTD cast. Positive = North.
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude source_name String lat_nom
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -70.7507, -65.6853
attribute longitude axis String X
attribute longitude bcodmo_name String lon_n
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String Nominal longitude. Values indicate longitude at start of CTD cast. Negative = West.
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude source_name String lon_nom
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 1.0, 200.0
attribute depth axis String Z
attribute depth bcodmo_name String depth
attribute depth description String Sample depth, in meters.
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/DEPH/ (external link)
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
variable PO4   float  
attribute PO4 _FillValue float NaN
attribute PO4 actual_range float 0.0, 1.13
attribute PO4 bcodmo_name String PO4
attribute PO4 description String PO4 concentration. Samples were NOT pre-concentrated with MAGIC.
attribute PO4 long_name String Mass Concentration Of Phosphate In Sea Water
attribute PO4 units String uM
variable SiOH4   float  
attribute SiOH4 _FillValue float NaN
attribute SiOH4 actual_range float 0.32, 9.96
attribute SiOH4 bcodmo_name String unknown
attribute SiOH4 description String SiOH4 concentration.
attribute SiOH4 long_name String Si OH4
attribute SiOH4 units String uM
variable NO3   float  
attribute NO3 _FillValue float NaN
attribute NO3 actual_range float 0.0, 23.54
attribute NO3 bcodmo_name String NO3
attribute NO3 colorBarMaximum double 50.0
attribute NO3 colorBarMinimum double 0.0
attribute NO3 description String NO3 concentration.
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 uM
variable NO2   float  
attribute NO2 _FillValue float NaN
attribute NO2 actual_range float 0.0, 0.8
attribute NO2 bcodmo_name String NO2
attribute NO2 colorBarMaximum double 1.0
attribute NO2 colorBarMinimum double 0.0
attribute NO2 description String NO2 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 uM
variable NH4   float  
attribute NH4 _FillValue float NaN
attribute NH4 actual_range float 0.0, 3.63
attribute NH4 bcodmo_name String Ammonium
attribute NH4 colorBarMaximum double 5.0
attribute NH4 colorBarMinimum double 0.0
attribute NH4 description String NH4 concentration.
attribute NH4 long_name String Mole Concentration Of Ammonium In Sea Water
attribute NH4 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AMONAAZX/ (external link)
attribute NH4 units String uM

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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