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Article Dans Une Revue Ocean Science Discussions Année : 2005

Detecting changes in Labrador Sea Water through a water mass analysis of BATS data

Résumé

A new water mass analysis technique is used to analyse the BATS oceanographic data set in the Sargasso Sea of 1988-1998 for changes in Labrador Sea Water (LSW) properties. The technique is based on a sequential quadratic programming method and requires careful definition of constraints to produce reliable results. Variations in LSW temperature and salinity observed in the Labrador Sea are used to define the constraints. It is shown that to minimize the residuals while matching the observed temperature and salinity changes in the source region the nitrate concentration in the Labrador Sea has to be allowed to vary as well. It is concluded that during the period of investigation nitrate underwent significant variations in the Labrador Sea.
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Dates et versions

hal-00298449 , version 1 (18-06-2008)

Identifiants

  • HAL Id : hal-00298449 , version 1

Citer

A. Henry-Edwards, M. Tomczak. Detecting changes in Labrador Sea Water through a water mass analysis of BATS data. Ocean Science Discussions, 2005, 2 (4), pp.417-435. ⟨hal-00298449⟩

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