On the scaling of vertical temperature gradient spectra

摘要: A physical interpretation is proposed for the temperature gradient wave number scaling of Caldwell et al. [1980]. It shown that kc/kB = (5.5 AT)1/2, where AT turbulence activity parameter Gibson [1980] used to classify fossil turbulence. 1 corresponds active in a stratified fluid largest eddies are slightly affected by buoyancy, and 1.4 (Pr/C)1/2 with nearly saturated internal waves but no The scaling, 1, equivalent 0.18. According model, this indicates completely Cox C 600. tendency decrease increasing noted may reflect both wider range possible values, 1.4(Pr/C)1/2, partially fossilized microstructure large C, as well relatively long persistence times such remnants strong mixing events which makes it more likely will be encountered an advanced stage decay its phase. Because all was some degree, turbulent process has apparently been undersampled.