Atmospheric processes regulate the formation of deep water in the subpolar North Atlantic Ocean and hence influence the large-scale ocean circulation1. Every year thousands of mesoscale storms, termed polar lows, cross this climatically sensitive region of the ocean. These storms are often either too small or too short-lived to be captured in meteorological reanalyses or numerical models2–4. He...

The Arctic Ocean likely impacts global climate through its effect on the rate of deep-water formation and the subsequent influence on global thermohaline circulation. Here, the renewal of the deep waters in the isolated Canadian Basin is quanitified. Using hydraulic theory and hydrographic observations, the authors calculate the magnitude of this renewal where circumstances have thus far preven...

There are two reservoirs with different temperature and permeability in the Kakkonda hydrothermal system. The shallow reservoir is permeable and 230 to 2 6 0 T , while the deep reservoir is less permeable and 350 to 3 6 0 T . However, they are hydraulically connected each other. Recent drilling of deep wells revealed existence of PreTertiary formation below Tertiary formations and neogranitic p...

Heat and mass transfer phenomena that take place during frying cause physicochemical changes, which affect the colour and surface of the fried products. The effect of frying temperature on the colour changes and heat transfer during deep fat frying of garlic has been investigated. The colour scale parameters redness (a*), yellowness (b*) and lightness (L*), and color change intensity (∆E) were ...

Abstract This review paper summarizes recent developments regarding geothermal exploitation using coaxial deep borehole heat exchangers (DBHE). Specifically, this study focuses on field tests, analytical and semi-analytical approaches, numerical simulations. First, tests applications of DBHE are summarized future work for the is suggested. Then, ongoing modeling approaches evaluated capability ...

The risk of heat exhaustion at a deep underground metalliferous mine was assessed in relation to thermal conditions prevailing on the surface. For each day of a 1-year prospective case series of heat exhaustion, surface 24-h mean wet and dry bulb temperatures were recorded. From this data, 24-h mean wet bulb globe temperatures were derived using certain assumptions. The three surface temperatur...

Concentrations of helium and tritium in gas and liquid phases in calorimetric cells with excess heat generations were measured. Values of factor F (nuclear ash) defined as ratio of amount of heat released by particular nuclear reactions to the excess heat, were calculated to be F(He in gas phase)≈ (4±16)×10 and F(T in liquid phase)≈ (8±6)×10, and upper limit of F(T in gas phase)≤ 1×10. These ex...

[1] The heavy winds associated with tropical cyclones generate strong upper ocean mixing. Recent studies suggest that this enhanced mixing significantly contributes to the ocean poleward heat transport, mainly due to a strengthening of the subtropical cells. A general circulation model is used here to show that whether the poleward heat transport is actually increased depends crucially on the l...