HR: 0830h
AN: B51C-0975    [PDF]
TI: A New Method to Estimate Water Mass Fractions and Remineralization Ratios
AU: McNeil, B I
EM: bmcneil@princeton.edu
AF: Program in Atmospheric and Oceanic Sciences, Princeton University PO Box CN710, Princeton, NJ 08544-0710 United States
AU: * Jacobon, A R
EM: andyj@splash.princeton.edu
AF: Program in Atmospheric and Oceanic Sciences, Princeton University PO Box CN710, Princeton, NJ 08544-0710 United States
AU: Key, R M
EM: key@princeton.edu
AF: Program in Atmospheric and Oceanic Sciences, Princeton University PO Box CN710, Princeton, NJ 08544-0710 United States
AU: Sarmiento, J L
EM: jls@princeton.edu
AF: Program in Atmospheric and Oceanic Sciences, Princeton University PO Box CN710, Princeton, NJ 08544-0710 United States
AB: We present a new method of water mass analysis that accounts for the nonlinear relationships in nutrient concentration observations. This method simultaneously solves for the fractions of different water masses and for the Redfield stoichiometry of remineralization at a given location. Performance is compared to the Optimum Multiparameter (OMP) technique using an extensive pseudodata analysis in which the mixing and remineralization of up to four endmembers from a set of 15 major water masses is simulated. The technique also produces confidence intervals that express the uncertainty due to water mass property characterization. Results for the subtropical Indian ocean using data from the WOCE/JGOFS program are presented.
DE: 4283 Water masses
DE: 4805 Biogeochemical cycles (1615)
DE: 4806 Carbon cycling
DE: 4808 Chemical tracers
DE: 4845 Nutrients and nutrient cycling
SC: Biogeosciences [B]
MN: 2003 Fall Meeting