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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL _NCProperties String version=2,netcdf=4.7.2,hdf5=1.10.5
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL citation String Hassler, C. and Ellwood, M. (2020). Nutrient concentration in seawater samples, collected from the underway supply, CTD and trace metal rosettes in the Southern Ocean during the austral summer of 2016/2017, on board the Antarctic Circumnavigation Expedition (ACE). (Version 1.1) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.3923586
attribute NC_GLOBAL contributors String [{'title': 'Christel Hassler', 'path': 'https://orcid.org/0000-0002-8976-5469', 'email': 'christel.hassler@epfl.ch', 'role': 'author', 'organisation': 'Department of F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, Switzerland'}, {'title': 'Michael Ellwood', 'path': 'https://orcid.org/0000-0003-4288-8530', 'role': 'author', 'organisation': 'Australian National University'}]
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_name String Christel Hassler
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://orcid.org/0000-0002-8976-5469 (external link)
attribute NC_GLOBAL DOI String https://doi.org/10.5281/zenodo.3923586 (external link)
attribute NC_GLOBAL Easternmost_Easting double 167.3921
attribute NC_GLOBAL geospatial_lat_max double -43.981
attribute NC_GLOBAL geospatial_lat_min double -71.6993
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 167.3921
attribute NC_GLOBAL geospatial_lon_min double -165.0198
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 4000.0
attribute NC_GLOBAL geospatial_vertical_min double -2.147483647E9
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL infoUrl String https://doi.org/10.5281/zenodo.3923586 (external link)
attribute NC_GLOBAL institution String SPI
attribute NC_GLOBAL keywords String ACE, ammonium, Antarctic Circumnavigation Expedition, Antarctica, chemistry, colorimetric technique, CTD, flow injection, nitrate, nitrite, nitrous oxide, nutrient, oceanography, phosphate, QuAAtro Seal Analytical autoanalyser, seawater, silicate, silicic acid, Southern Ocean, TMR, trace metal, trace metal rosette, underway
attribute NC_GLOBAL license String CC-BY-4.0
attribute NC_GLOBAL Northernmost_Northing double -43.981
attribute NC_GLOBAL platform_code String UBXH3_ACE_2616605
attribute NC_GLOBAL platform_name String R/V Akademik Tryoshnikov
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -71.6993
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String This dataset presents concentrations of nutrients (µmol/L): nitrous oxide (NOx), nitrate, nitrite, ammonium (NH4), phosphate (PO4) and silicic acid (Si), measured in samples of seawater during the Antarctic Circumnavigation Expedition (ACE). Samples were collected from CTD and trace metal rosette (TMR) deployments, as well as from the underway water supply on board, then analysed by flow injection following certified standards. This data was collected to support physical, chemical and biological oceanography studies in the Southern Ocean, conducted as part of ACE during the austral summer of 2016/2017.
attribute NC_GLOBAL title String SPI - Nutrient concentration in seawater samples, collected from the underway supply, CTD and trace metal rosettes in the Southern Ocean during the austral summer of 2016/2017, on board the Antarctic Circumnavigation Expedition (ACE).
attribute NC_GLOBAL type String ferrybox/ship
attribute NC_GLOBAL Westernmost_Easting double -165.0198
variable ace_station_number int
attribute ace_station_number _ChunkSizes uint 1024
attribute ace_station_number actual_range int 2, 103
attribute ace_station_number description String Unique number of oceanographic sampling station at which water samples were collected
attribute ace_station_number spi_original_name String ACE station number
variable ace_event_number int
attribute ace_event_number _ChunkSizes uint 1024
attribute ace_event_number actual_range int 75, 3117
attribute ace_event_number description String Unique number of sampling event within ACE from which water samples were collected
attribute ace_event_number spi_original_name String ACE event number
variable date_time_sampling double
attribute date_time_sampling _ChunkSizes uint 512
attribute date_time_sampling _CoordinateAxisType String Time
attribute date_time_sampling actual_range double 1.4829081E9, 1.48965798E9
attribute date_time_sampling axis String T
attribute date_time_sampling description String time
attribute date_time_sampling ioos_category String Time
attribute date_time_sampling long_name String Time
attribute date_time_sampling standard_name String time
attribute date_time_sampling time_origin String 01-JAN-1970 00:00:00
attribute date_time_sampling units String seconds since 1970-01-01T00:00:00Z
variable latitude double
attribute latitude _ChunkSizes uint 512
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range double -71.6993, -43.981
attribute latitude attribute String Latitude of the vessel’s geographical position at the time of sampling event
attribute latitude axis String Y
attribute latitude description String Latitude at which the sampling event took place [decimal degrees north]
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude spi_original_name String latitude decimal degrees N
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude double
attribute longitude _ChunkSizes uint 512
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range double -165.0198, 167.3921
attribute longitude attribute String Longitude of the vessel’s geographical position at the time of sampling event
attribute longitude axis String X
attribute longitude description String Longitude at which the sampling event took place [decimal degrees east]
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude spi_original_name String longitude decimal degrees E
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable sampling_method String
attribute sampling_method _ChunkSizes uint 1, 19
attribute sampling_method description String Instrument from which the samples were taken or collected. ctd – water taken from the niskin bottles on the conductivity, temperature, depth (CTD) recorder rosette. trace metal rosette – water taken from the niskin bottles on the trace metal rosette. Underway – water taken from the continuously flowing water line from an intake approximately 5 m below the surface of the water. MilliQ – water taken system that produces MilliQ water.
attribute sampling_method spi_original_name String sampling method
variable depth int
attribute depth _ChunkSizes uint 1024
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth actual_range int -2147483647, 4000
attribute depth attribute String Depth below sea surface at which the seawater sample was collected
attribute depth axis String Z
attribute depth description String Depth of water from where the sample was collected [metres]
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth positive String down
attribute depth spi_original_name String depth of sample m
attribute depth standard_name String depth
attribute depth units String m
variable ace_sample_number String
attribute ace_sample_number _ChunkSizes uint 1, 39
attribute ace_sample_number description String Unique sample number for the sample within the ACE expedition. In format shipname/ACE/legnumber/projectnumber/julianday(UTC]/eventnumber/PIinitials/projectsamplenumber
attribute ace_sample_number spi_original_name String ACE sample number
variable measuring_date String
attribute measuring_date _ChunkSizes uint 1, 10
attribute measuring_date description String Date when analysis was performed on sample [UTC]
attribute measuring_date spi_original_name String measuring date utc
variable concentration_of_nitrous_oxide double
attribute concentration_of_nitrous_oxide _ChunkSizes uint 512
attribute concentration_of_nitrous_oxide actual_range double -0.17, 37.35
attribute concentration_of_nitrous_oxide description String Concentration of nitrous oxide NOx [µmol per litre]
attribute concentration_of_nitrous_oxide spi_original_name String nitrous oxide µmol/L
attribute concentration_of_nitrous_oxide units String umol L-1
variable standard_deviation_of_concentration_of_nitrous_oxide double
attribute standard_deviation_of_concentration_of_nitrous_oxide _ChunkSizes uint 512
attribute standard_deviation_of_concentration_of_nitrous_oxide actual_range double 0.0, 2.82
attribute standard_deviation_of_concentration_of_nitrous_oxide description String Standard deviation of measurements of concentration of nitrous oxide NOx [µmol per litre]
attribute standard_deviation_of_concentration_of_nitrous_oxide spi_original_name String standard deviation nitrous oxide µmol/L
attribute standard_deviation_of_concentration_of_nitrous_oxide units String umol L-1
variable concentration_of_phosphate double
attribute concentration_of_phosphate _ChunkSizes uint 512
attribute concentration_of_phosphate actual_range double 0.03, 73.67
attribute concentration_of_phosphate description String Concentration of phosphate PO4 [µmol per litre]
attribute concentration_of_phosphate spi_original_name String phosphate µmol/L
attribute concentration_of_phosphate units String umol L-1
variable standard_deviation_of_concentration_of_phosphate double
attribute standard_deviation_of_concentration_of_phosphate _ChunkSizes uint 512
attribute standard_deviation_of_concentration_of_phosphate actual_range double 0.0, 1.75
attribute standard_deviation_of_concentration_of_phosphate description String Standard deviation of concentration of phosphate PO4 [µmol per litre]
attribute standard_deviation_of_concentration_of_phosphate spi_original_name String standard deviation phosphate µmol/L
attribute standard_deviation_of_concentration_of_phosphate units String umol L-1
variable concentration_of_nitrite double
attribute concentration_of_nitrite _ChunkSizes uint 512
attribute concentration_of_nitrite actual_range double -0.01, 42.58
attribute concentration_of_nitrite description String Concentration of nitrite [µmol per litre]
attribute concentration_of_nitrite spi_original_name String nitrite µmol/L
attribute concentration_of_nitrite units String umol L-1
variable standard_deviation_of_concentration_of_nitrite double
attribute standard_deviation_of_concentration_of_nitrite _ChunkSizes uint 512
attribute standard_deviation_of_concentration_of_nitrite actual_range double 0.0, 1.45
attribute standard_deviation_of_concentration_of_nitrite description String Standard deviation of concentration of nitrite [µmol per litre]
attribute standard_deviation_of_concentration_of_nitrite spi_original_name String standard deviation nitrite µmol/L
attribute standard_deviation_of_concentration_of_nitrite units String umol L-1
variable concentration_of_silicic_acid double
attribute concentration_of_silicic_acid _ChunkSizes uint 512
attribute concentration_of_silicic_acid actual_range double 0.0, 119.89
attribute concentration_of_silicic_acid description String Concentration of silicic acid Si [µmol per litre]
attribute concentration_of_silicic_acid spi_original_name String silicic acid µmol/L
attribute concentration_of_silicic_acid units String umol L-1
variable standard_deviation_of_concentration_of_silicic_acid double
attribute standard_deviation_of_concentration_of_silicic_acid _ChunkSizes uint 512
attribute standard_deviation_of_concentration_of_silicic_acid actual_range double 0.0, 4.97
attribute standard_deviation_of_concentration_of_silicic_acid description String Standard deviation of concentration of silicate [µmol per litre]
attribute standard_deviation_of_concentration_of_silicic_acid spi_original_name String standard deviation silicic acid µmol/L
attribute standard_deviation_of_concentration_of_silicic_acid units String umol L-1
variable concentration_of_ammonium double
attribute concentration_of_ammonium _ChunkSizes uint 512
attribute concentration_of_ammonium actual_range double -0.06, 15.58
attribute concentration_of_ammonium description String Concentration of ammonium NH4 [µmol per litre]
attribute concentration_of_ammonium spi_original_name String ammonium µmol/L
attribute concentration_of_ammonium units String umol L-1
variable standard_deviation_of_concentration_of_ammonium double
attribute standard_deviation_of_concentration_of_ammonium _ChunkSizes uint 512
attribute standard_deviation_of_concentration_of_ammonium actual_range double 0.0, 1.25
attribute standard_deviation_of_concentration_of_ammonium description String Standard deviation of concentration of ammonium NH4 [µmol per litre]
attribute standard_deviation_of_concentration_of_ammonium spi_original_name String standard deviation ammonium µmol/L
attribute standard_deviation_of_concentration_of_ammonium units String umol L-1
variable concentration_of_nitrate double
attribute concentration_of_nitrate _ChunkSizes uint 512
attribute concentration_of_nitrate actual_range double -43.93, 37.36
attribute concentration_of_nitrate description String Concentration of nitrate [µmol per litre]
attribute concentration_of_nitrate spi_original_name String nitrate µmol/L
attribute concentration_of_nitrate units String umol L-1
variable standard_deviation_of_concentration_of_nitrate double
attribute standard_deviation_of_concentration_of_nitrate _ChunkSizes uint 512
attribute standard_deviation_of_concentration_of_nitrate actual_range double 0.0, 2.8
attribute standard_deviation_of_concentration_of_nitrate description String Standard deviation of concentration of nitrate [µmol per litre]
attribute standard_deviation_of_concentration_of_nitrate spi_original_name String standard deviation nitrate µmol/L
attribute standard_deviation_of_concentration_of_nitrate units String umol L-1
variable comments String
attribute comments _ChunkSizes uint 1, 86
attribute comments description String Additional information to help understanding of data
attribute comments spi_original_name String comments

 
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