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Nitrogen Cycle in the Ocean, Past and Present (NICOPP) Database


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Nitrogen isotopes in bulk marine sediment: linking seafloor observations with subseafloor records
J.-E. Tesdal, E.D. Galbraith, and M. Kienast Biogeosciences
Volume 10, Number 1, January 2013



Nitrogen Cycle in the Ocean, Past and Present (NICOPP) database of global ocean marine sedimentary δ15N measurements, from both seafloor samples and subseafloor records. NICOPP is a joint working group of PAGES and IMAGES. NICOPP studies Nitrogen isotope (d15N) dynamics as recorded in the sedimentary record in order to learn about the dynamics of the marine nutrient cycle in the Quaternary and the present. For the seafloor compilation, d15N is given as point measurements along with the corresponding latitude and longitude. Currently, it contains data from about 2,300 samples. The subseafloor compilation includes almost all bulk marine sedimentary d15N records published in the literature. Along with the d15N measurements, we included the corresponding sediment depth, a published age model (if available), nitrogen content (N%), total organic carbon content (Corg%), and dry bulk density. There are currently about 140 d15N records included in the database. The timespans of the given records range from a few hundred years to four million years.

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To read or view the full study, please visit the Biogeosciences website.
It was published in Biogeosciences, Volume 10, Number 1, January 2013.
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