{"@context":{"content":"http://purl.org/rss/1.0/modules/content/","dc":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","og":"http://ogp.me/ns#","rdfs":"http://www.w3.org/2000/01/rdf-schema#","sioc":"http://rdfs.org/sioc/ns#","sioct":"http://rdfs.org/sioc/types#","skos":"http://www.w3.org/2004/02/skos/core#","xsd":"http://www.w3.org/2001/XMLSchema#","owl":"http://www.w3.org/2002/07/owl#","rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","rss":"http://purl.org/rss/1.0/","site":"https://www.bco-dmo.org/ns#","odo":"http://ocean-data.org/schema/","emo":"http://ocean-data.org/schema/entity-matching#","bibo":"http://purl.org/ontology/bibo/","crypto":"http://id.loc.gov/vocabulary/preservation/cryptographicHashFunctions/","bcodmo":"http://lod.bco-dmo.org/id/","tw":"http://tw.rpi.edu/schema/","dcat":"http://www.w3.org/ns/dcat#","time":"http://www.w3.org/2006/time#","geo":"http://www.w3.org/2003/01/geo/wgs84_pos#","geosparql":"http://www.opengis.net/ont/geosparql#","sf":"http://www.opengis.net/ont/sf#","void":"http://rdfs.org/ns/void#","sd":"http://www.w3.org/ns/sparql-service-description#","dctype":"http://purl.org/dc/dcmitype/","prov":"http://www.w3.org/ns/prov#","schema":"http://schema.org/","geolink":"http://schema.geolink.org/1.0/base/main#","spdx":"http://spdx.org/rdf/terms#","bcodmo_vocab":"http://schema.bco-dmo.org/"},"@id":"http://lod.bco-dmo.org/id/dataset/746854#graph","@graph":[{"http://lod.bco-dmo.org/id/dataset/746854":{"@id":"http://lod.bco-dmo.org/id/dataset/746854","@type":["http://ocean-data.org/schema/DeploymentDatasetCollection","http://www.w3.org/ns/dcat#Dataset","http://ocean-data.org/schema/Dataset"],"http://ocean-data.org/schema/hasAcquisitionDescription":[{"@value":"
PON samples were collected from the upper 200 m of the water column using a 1-m2, 200-um-mesh plankton net aboard the R/V Atlantic Explorer during ten cruises between July 2011 and November 2013. Approximately 10% of the tow material was size-fractionated and freeze-dried for elemental and isotopic analysis of PON. See methods section of Smart et al. (2018) for more details of sample collection, isotope analysis, and data quality.
\nThe d15N of tow-collected, size-fractionated PON was determined by elemental analyzer-isotope ratio mass spectrometry (an Elementar Vario Isotope Cube online to an Elementar Isoprime visION), referencing to atmospheric N2 using USGS-40 and an in-house aminocaproic acid standard.
d15N of size-fractionated particulate organic nitrogen (PON) from net tows in the Sargasso Sea\u00a0(off Bermuda) in the western subtropical North Atlantic. Net tow samples from 0-200 m at BATS (31\u00b040\u2019N, 64\u00b010\u2019W) and Hydro Station S (32\u00b010\u2019N, 64\u00b034\u2019W).
\nData published in:
\nSmart, S.M., H. Ren, S.E. Fawcett, R. Schiebel, M. Conte, P.A. Rafter, K.K. Ellis, M.A. Weigand, S. Oleynik, G.H. Haug, D.M. Sigman (2018). Ground-truthing the planktic foraminifer-bound nitrogen isotope paleo-proxy in the Sargasso Sea, Geochimica et Cosmochimica Acta, doi: https://doi.org/10.1016/j.gca.2018.05.023
Data processing: After correcting for drift (when necessary) and non-linearity in the data, isotope ratio measurements were calibrated to N2 in air using international reference materials that were included in every run.
\nMissing data identifier = -999
\nBCO-DMO Processing: modified parameter names (replaced spaces w/ underscores; replaced # with \"num\").