What is an isothermal atmosphere?
(Also called exponential atmosphere.) An idealized atmosphere in hydrostatic equilibrium in which the temperature is constant with height and in which, therefore, the pressure decreases exponentially upward. In the isothermal atmosphere there is no finite height at which the pressure vanishes. …
What is isothermal layer depth?
The Top of Thermocline Depth (TTD) is defined as the depth above which the temperature is superior than the surface temperature (at 10m depth) minus 0.2 °C (cf. [4], [5]). The surface layer of the ocean above the TTD is warm relative to the deeper ocean and the TTD may also be called the surface Warm Layer Depth (WLD).
Which of the following layers in the atmosphere is isothermal?
The lower portion of the stratosphere is also influenced by the polar jet stream and subtropical jet stream. In the first 9 kilometers of the stratosphere, temperature remains constant with height. A zone with constant temperature in the atmosphere is called an isothermal layer.
Is the deep layer isothermal?
The main thermocline separates the warmer mixed layer above from the cooler deep layer below. In the deep layer, the water is almost isothermal, with only a gradual decrease in tem- perature to the ocean floor. The top of this deep layer is found at a depth of (less than 1,000 m) (more than 1,000 m).
What is isothermal?
1 : of, relating to, or marked by equality of temperature. 2 : of, relating to, or marked by changes of volume or pressure under conditions of constant temperature.
Why do isothermal layers exist?
An isothermal layer is defined as a vertical column of air having a constant temperature with height. Isothermal layers often occur in the low levels of the troposphere during a differential advection situation. This is because temperature is not cooling with height like would be normal through a deep layer.
Where is isothermal located?
An isothermal layer is defined as a vertical column of air having a constant temperature with height. Isothermal layers often occur in the low levels of the troposphere during a differential advection situation.
What does Thermopause mean?
The thermopause is the atmospheric boundary of Earth’s energy system, located at the top of the thermosphere. Below this, the atmosphere is defined to be active on the insolation received, due to the increased presence of heavier gases such as monatomic oxygen.
Does the atmosphere have 7 layers?
Layers of the atmosphere: troposphere, stratosphere, mesosphere and thermosphere. Moving upward from ground level, these layers are named the troposphere, stratosphere, mesosphere, thermosphere and exosphere. The exosphere gradually fades away into the realm of interplanetary space.
What is isothermal process?
An isothermal process is a thermodynamic process in which the temperature of a system remains constant. The transfer of heat into or out of the system happens so slowly that thermal equilibrium is maintained. This process is known as Adiabatic Process.
What is isothermal process explain in brief?
In thermodynamics, an isothermal process is a type of thermodynamic process in which the temperature of the system remains constant: ΔT = 0. In contrast, an adiabatic process is where a system exchanges no heat with its surroundings (Q = 0).
What is a low level inversion?
In regions where a pronounced low-level inversion is present, convective clouds cannot grow high enough to produce showers and, at the same time, visibility may be greatly reduced below the inversion, even in the absence of clouds, by the accumulation of dust and smoke particles. …
How is water subducted from the isothermal layer?
The isothermal layer or thermostad of winter water trapped in the fossilized layers may be subducted into the permanent thermocline through the action of Ekman pumping, in response to a curl in the wind field. The mode waters are then transported, retaining their characteristic thermostad, with flow in the subtropical gyre.
Where is the isothermal layer of the atmosphere?
[¦ī·sə¦thər·məl ′lā·ər] (meteorology) The approximately isothermal region of the atmosphere immediately above the tropopause.
Is there an isothermal layer above the tropopause?
The approximately isothermal region of the atmosphere immediately above the tropopause. A layer of fluid, all points of which have the same temperature. Want to thank TFD for its existence?
Which is an example of the isothermal process?
One of the examples of the industrial application of the isothermal process is the Carnot engine. In this engine, some parts of the cycles are carried out isothermally. A refrigerator works isothermally. A set of changes take place in the mechanism of a refrigerator but the temperature inside remains constant.