Atmospheric temperature for gradient of Earth's atmosphere Geothermal gradient Gradient Lapse rate Weak temperature gradient approximation Edward N. Lorenz...

In atmospheric science, the weak temperature gradient approximation (WTG) is a theoretical framework used to simplify the equations governing tropical...

speed of sound in an ideal gas depends only on its temperature and composition. The speed has a weak dependence on frequency and pressure in dry air, deviating...

in a range of temperatures around the reference. When the temperature varies over a large temperature range, the linear approximation is inadequate and...

Lapse rate corresponds to the vertical component of the spatial gradient of temperature. Although this concept is most often applied to the Earth's troposphere...

wind gradient, more specifically wind speed gradient or wind velocity gradient, or alternatively shear wind, is the vertical component of the gradient of...

These images can represent the temperature gradient of a scene and are commonly used to locate objects at a higher temperature than their surroundings. In...

the uniform system. In the square gradient approximation a strong non-uniform density contributes a term in the gradient of the density. In a perturbation...

typically formed when a gas of bosons at very low densities is cooled to temperatures very close to absolute zero, i.e. 0 K (−273.15 °C; −459.67 °F). Under...

The Bulk Richardson Number (BRN) is an approximation of the Gradient Richardson number. The BRN is a dimensionless ratio in meteorology related to the...

base of the convection zone. In a radiative zone, the temperature gradient—the change in temperature (T) as a function of radius (r)—is given by: d T ( r...

causes the temperature on the surface of the clothing to be less than the temperature on the surface of the skin. This smaller temperature gradient between...

{\displaystyle S(\epsilon )} , which is weakly varying in energy. Putting these dependencies together, one approximation for the fusion cross section as a function...

the thermal conductivity, and ∇ T {\displaystyle \nabla T} is the temperature gradient. This is known as Fourier's law for heat conduction. Although commonly...

heat is strictly proportional to the gradient of temperature. Although undoubtedly true for small temperature gradients, strictly proportional behavior will...

in the nucleon-pion-gradient coupling model, and the axial vector current coefficient of the nucleon, which determines the weak decay rate of the neutron...

dwarfs. Convection is the dominant mode of energy transport when the temperature gradient is steep enough so that a given parcel of gas within the star will...

stresses must depend on spatial gradients of the flow velocity. If the velocity gradients are small, then to a first approximation the viscous stresses depend...

discrete "lumps" and assumes that the temperature difference inside each lump is negligible. This approximation is useful to simplify otherwise complex...

generation of kinetic energy caused by wind shear). It is an approximation of the Gradient Richardson Number. bushfire See wildfire. Buys Ballot's law...

Independent electron approximation: The interactions between electrons are ignored. The electrostatic fields in metals are weak because of the screening...

Stefan; Braun, Dieter (26 December 2006). "Why molecules move along a temperature gradient". Proceedings of the National Academy of Sciences. 103 (52): 19678–19682...

analysis, Kantorovich had important results in functional analysis, approximation theory, and operator theory. In particular, Kantorovich formulated some...

signs—together with respiratory rate, heart rate, oxygen saturation, and body temperature—that healthcare professionals use in evaluating a patient's health. Normal...

or convection, with the latter occurring in regions with steeper temperature gradients, higher opacity, or both. The main sequence is sometimes divided...

a force originating from the shear gradient inside the crystal. This is the essence of the small-load approximation. The QCM measures inertial mass, and...

figure above, temperature,   T {\displaystyle \ T} , is conserved for a certain distance as a parcel moves across a temperature gradient. The fluctuation...

contraction. A temperature gradient greater than 0.4 is therefore called superadiabatic. Consider a star with a superadiabatic gradient. Imagine a parcel...

states in the heavily shaded area in Fig. 1. (This approximation gets slowly worse as temperature increases.) ZF can also be written in the form: where...

center will be correspondingly accelerated. If the field has a parallel gradient, a particle with a finite Larmor radius will also experience a force in...