Thermohaline staircases in the Warm-Core Ring off Cape Erimo, Hokkaido and their fluxes due to salt finger

Miyake, Hideo; Sasaki, Seiji; Yamaguchi, Hidekazu; Masuda, Kiyoshi; Anma, Gen; Kamei, Yoshihiko

doi:10.1007/bf02235939

Cited by 4 publications

(1 citation statement)

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“…7). On the one hand, the overall estimated fluxes are about one order of magnitude lower than in a typical staircase region 27 , which is consistent with the relatively high density ratio in the study region. On the other hand, the heat/salt transport by double-diffusion is increasing with the maturing of the interface, or, equivalently, is decreasing towards the tip.…”

Section: Resultssupporting

confidence: 85%

Detecting changes at the leading edge of an interface between oceanic water layers

et al. 2019

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Many physical phenomena in the ocean involve interactions between water masses of different temperatures and salinities at boundaries. Of particular interest is the characterisation of finescale structure at the marginal interaction zones of these boundaries, where the structure is either destroyed by mixing or formed by stratification. Using high-resolution seismic reflection imaging, we present observations of temporal changes at the leading edge of an interface between sub-thermocline layers in the Panama Basin. By studying time-lapse images of a seismic reflector between two water boundaries with subtle differences, we provide empirical constraints on how stratified layers evolve. The leading edge of this reflector, which is characterised by a gradual lateral decrease in vertical temperature contrast ($$|\Delta T|$$ ∣ Δ T ∣ ), increases in length over ~3 days coupled with an increase in $$|\Delta T|$$ ∣ Δ T ∣ . A critical mixing state, in which turbulent diffusion is gradually replaced by double-diffusion as the dominant mixing process, is thus revealed.

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Section: Resultssupporting

confidence: 85%