Dataset: Ammonium (NH4) data from CTD rosette bottles from R/V Thomas G. Thompson and R/V Kilo Moana cruises TN277, KM1301, KM1312 in the Eastern North Pacific Ocean from 2012-2013 (POWOW project)

ValidatedFinal no updates expectedDOI: 10.1575/1912/bco-dmo.3754.2Version 2 (2014-07-10)Dataset Type:Cruise Results

Principal Investigator: Zackary I. Johnson (Duke University)

BCO-DMO Data Manager: Shannon Rauch (Woods Hole Oceanographic Institution)


Project: Seasonal and decadal changes in temperature drive Prochlorococcus ecotype distribution patterns (POWOW)


Abstract

Ammonium (NH4) data from CTD rosette bottles from R/V Thomas G. Thompson and R/V Kilo Moana cruises TN277, KM1301, KM1312 in the Eastern North Pacific Ocean from 2012-2013 (POWOW project)

Spatial Extent: N:46.69 E:-118.32 S:21.34 W:-160.62
Temporal Extent: 2012-03-01 - 2013-07-27

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Ammonium (NH4) concentration in nM from 3 POWOW cruises (TN277, KM1301, and KM1312). Samples that had a mean concentration (mean of replicated samples) below the nominal detection limit are reported as zero.

Also see related inorganic nutrient data from this project.
Nitrite and Nitrate (NO2, NO3) https://www.bco-dmo.org/dataset/3755
Phosphate and Silicate (PO4, SiOH4) https://www.bco-dmo.org/dataset/3756


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Methods

Holmes, R. M., Aminot, A., Kerouel, R., Hooker, B. A., & Peterson, B. J. (1999). A simple and precise method for measuring ammonium in marine and freshwater ecosystems. Canadian Journal of Fisheries and Aquatic Sciences, 56(10), 1801-1808. doi:10.1139/f99-128