A state variable for characterizing water masses and their diffusive stability: Spiciness
P Flament - Progress in Oceanography, 2002 - Elsevier
Progress in Oceanography, 2002•Elsevier
A state variable π (θ, s) most sensitive to isopycnal thermohaline variations and least
correlated with the density field is proposed. π is constructed so that its diapycnal gradient
dρπ is related to the density gradient ratio Rρ: dρπ≈(1+ Rρ)/(1− Rρ). It is simultaneously a
tracer conserved by isentropic motions, and an indicator of diffusive stability. It is useful for
the combined description of interleaving and double-diffusive processes at the boundary
between water masses.
correlated with the density field is proposed. π is constructed so that its diapycnal gradient
dρπ is related to the density gradient ratio Rρ: dρπ≈(1+ Rρ)/(1− Rρ). It is simultaneously a
tracer conserved by isentropic motions, and an indicator of diffusive stability. It is useful for
the combined description of interleaving and double-diffusive processes at the boundary
between water masses.
A state variable π(θ,s) most sensitive to isopycnal thermohaline variations and least correlated with the density field is proposed. π is constructed so that its diapycnal gradient dρπ is related to the density gradient ratio Rρ:dρπ≈(1+Rρ)/(1−Rρ). It is simultaneously a tracer conserved by isentropic motions, and an indicator of diffusive stability. It is useful for the combined description of interleaving and double-diffusive processes at the boundary between water masses.
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