enrichment_of_15N_in_particulate_nitrogen_in_sea_water_expressed_as_lowercase_delta_15N_relative_to_atmospheric_nitrogen

Isotopic enrichment of 15N, often called delta 15N, is a measure of the ratio of stable isotopes 15N:14N. It is a parameterisation of the 15N/14N isotopic ratio in the sample with respect to the isotopic ratio in a reference standard (in this case atmospheric nitrogen). It is computed using the formula (((15N/14N)sample / (15N/14N)standard) - 1) * 1000. Particulate means suspended solids of all sizes.

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Proposal: Fernando Carvalho Pacheco & Fernando Santiago-Mandujano & Karin Bjorkman & Andrew Barna [Standard names: Second Batch - 19 variab]

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