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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 Rickli, Jörg, Janssen, David J., Hassler, Christel, Ellwood, Michael, & Jaccard, Samuel L. (2019). Seawater chromium concentrations and isotope compositions in the Southern Ocean during the austral summer of 2016/2017, on board the Antarctic Circumnavigation Expedition (ACE). (Version 1.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.3250980
attribute NC_GLOBAL contributors String [{'title': 'Jörg Rickli', 'path': 'https://orcid.org/0000-0001-8186-2750', 'role': 'author', 'organisation': 'ETH Zurich, Switzerland'}, {'title': 'David J. Janssen', 'path': 'https://orcid.org/0000-0002-9091-8936', 'role': 'author', 'organisation': 'Institute of Geological Sciences & Oeschger Center for Climate Change Research, University of Bern, Switzerland'}, {'title': 'Christel S. Hassler', 'path': 'https://orcid.org/0000-0002-8976-5469', 'role': 'author', 'organisation': 'Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, Switzerland; Swiss Polar Institute, Switzerland'}, {'title': 'Michael J. Ellwood', 'path': 'https://orcid.org/0000-0003-4288-8530', 'role': 'author', 'organisation': 'Research School of Earth Sciences, Australian National University, Australia'}, {'title': 'Samuel L. Jaccard', 'path': 'https://orcid.org/0000-0002-5793-0896', 'email': 'samuel.jaccard@geo.unibe.ch', 'role': 'author', 'organisation': 'Institute of Geological Sciences & Oeschger Center for Climate Change Research, University of Bern, Switzerland'}]
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_name String Jörg Rickli
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://orcid.org/0000-0001-8186-2750 (external link)
attribute NC_GLOBAL DOI String https://doi.org/10.5281/zenodo.3250980 (external link)
attribute NC_GLOBAL Easternmost_Easting double 167.36
attribute NC_GLOBAL geospatial_lat_max double -46.393
attribute NC_GLOBAL geospatial_lat_min double -67.29
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 167.36
attribute NC_GLOBAL geospatial_lon_min double -67.919
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 1000.0
attribute NC_GLOBAL geospatial_vertical_min double 15.0
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.3250980 (external link)
attribute NC_GLOBAL institution String SPI
attribute NC_GLOBAL keywords String ACE, Antarctic Circumnavigation Expedition, Antarctica, Balleny Islands, chromium isotope, Cr isotope, Drake Passage, seawater, Southern Ocean, trace metal rosette
attribute NC_GLOBAL license String CC-BY-4.0
attribute NC_GLOBAL Northernmost_Northing double -46.393
attribute NC_GLOBAL platform_code String UBXH3_ACE_3250979
attribute NC_GLOBAL platform_name String R/V Akademik Tryoshnikov
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -67.29
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Dissolved seawater chromium (Cr) concentrations and stable isotope compositions measured on samples collected with a trace metal clean rosette system in the Southern Ocean. Stations TM 7 to TM 12 reflect a north-south transect from Hobart, Tasmania to Mertz Glacier in Antarctica. Stations TM 14 and TM 15 neighbour the Balleny Islands. Stations TM 18 and TM 20 are located in the Drake Passage. Water samples were collected down to a depth of 1000 metres. The water was filtered in a class 100 clean container aboard the ship through pre-rinsed Supor Acropak capsule filters (0.2 um). Subsequently the samples were acidified and stored at a pH < 2 for several months prior to analysis. Reported values therefore represent bulk seawater chromium (Cr III and Cr VI). The data was obtained using the double-spike technique.
attribute NC_GLOBAL title String SPI - Seawater chromium concentrations and isotope compositions 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 -67.919
variable date_time double
attribute date_time _ChunkSizes uint 512
attribute date_time _CoordinateAxisType String Time
attribute date_time actual_range double 1.484637833E9, 1.487473555E9
attribute date_time axis String T
attribute date_time description String time
attribute date_time ioos_category String Time
attribute date_time long_name String Time
attribute date_time standard_name String time
attribute date_time time_origin String 01-JAN-1970 00:00:00
attribute date_time 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 -67.29, -46.393
attribute latitude attribute String Latitude at which trace metal rosette deployment began
attribute latitude axis String Y
attribute latitude description String Latitude at which the trace metal rosette deployment began
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude spi_original_name String latitude [degN]
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 -67.919, 167.36
attribute longitude attribute String Longitude at which trace metal rosette deployment began
attribute longitude axis String X
attribute longitude description String Longitude at which the trace metal rosette deployment began
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude spi_original_name String longitude [degE]
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable trace_metal_rosette_cast_number int
attribute trace_metal_rosette_cast_number _ChunkSizes uint 1024
attribute trace_metal_rosette_cast_number actual_range int 7, 20
attribute trace_metal_rosette_cast_number description String Unique identification number of each trace metal rosette cast during the Antarctic Circumnavigation Expedition
attribute trace_metal_rosette_cast_number spi_original_name String trace_metal_rosette_cast_number
variable ace_event_number int
attribute ace_event_number _ChunkSizes uint 1024
attribute ace_event_number actual_range int 613, 1903
attribute ace_event_number description String Unique identification number of the trace metal rosette deployment within the Antarctic Circumnavigation Expedition project
attribute ace_event_number spi_original_name String ace_event_number
variable ace_sample_number String
attribute ace_sample_number _ChunkSizes uint 1, 38
attribute ace_sample_number description String Unique number of the seawater sample within the ACE project in the format shipname/ACE/legnumber/projectnumber/julianday[UTC]/eventnumber/PIinitials/projectsamplenumber
attribute ace_sample_number spi_original_name String ace_sample_number
variable depth int
attribute depth _ChunkSizes uint 1024
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth actual_range int 15, 1000
attribute depth attribute String Depth below the surface from which the seawater sample was taken
attribute depth axis String Z
attribute depth description String Depth below the surface from which the seawater sample was taken
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth positive String down
attribute depth spi_original_name String depth [m]
attribute depth standard_name String depth
attribute depth units String m
variable chromium_concentration double
attribute chromium_concentration _ChunkSizes uint 512
attribute chromium_concentration actual_range double 3.21947, 3.95325
attribute chromium_concentration description String Concentration of chromium (VI and III) measured in the seawater sample, based on a double-spike method
attribute chromium_concentration spi_original_name String chromium_concentration [nmol/kg]
attribute chromium_concentration units String nmol kg-1
variable d53Cr double
attribute d53Cr _ChunkSizes uint 512
attribute d53Cr actual_range double 0.87032, 1.06464
attribute d53Cr description String Seawater stable chromium isotope composition (Cr VI and III) expressed in delta-notation relative to NIST SRM 979. Based on a double-spike method
attribute d53Cr spi_original_name String d53Cr [‰]
attribute d53Cr units String ‰
variable internal_error double
attribute internal_error _ChunkSizes uint 512
attribute internal_error actual_range double 0.0155, 0.03
attribute internal_error description String In run error on d53Cr (2 standard error of the mean)
attribute internal_error spi_original_name String internal_error [‰]
attribute internal_error units String ‰

 
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