The lowest layer is the troposphere where most of the atmospheric gases and all of the planet's weather are located. The troposphere is heated from the ground, so temperature decreases with altitude. Because warm air rises and cool air sinks, the troposphere is unstable.
Also, why is the situation in troposphere defined as unstable?
The situation in the troposphere is defined as unstable because the reaction of the natural atmospheric phenomenon like climate, temperature, humidity, rainfall etc. are not realists predictable and stable.
Similarly, what causes unstable air? To be "unstable", the lowest layers of an air mass must be so warm and/or humid that, if some of the air rises, then that air parcel is warmer than its environment, and so it continues to rise. This is called moist convection.
People also ask, is the troposphere stable or unstable?
The troposphere is relatively unstable because of the decrease of temperature with altitude. Air in the troposphere is poised to over-turn (to convect) much like water in Page 2 2 a kettle heated from below. Most of the weather of the planet is confined to the troposphere.
What causes weather in the troposphere?
The general rule of the troposphere is that temperature decreases with height, and this temperature profile is what makes the troposphere unstable enough for air to rise and cause weather. When colder air is found above warmer air, then the warmer air is bouyant enough to rise.
Why is there no water vapor in the stratosphere?
The stratosphere is very dry; air there contains little water vapor. Because of this, few clouds are found in this layer; almost all clouds occur in the lower, more humid troposphere. Due to the lack of vertical convection in the stratosphere, materials that get into the stratosphere can stay there for long times.Why is the troposphere turbulent?
That air being warmer and less dense, rises. That's how turbulence are created. That is because, the warmer the ground, the more turbulence or thermal bubbles, as we call them. But those “bubbles” only rise in the troposphere because this is where the temperature sinks with altitude.Why troposphere is called zone of disturbance?
Why is the troposphere called the zone of disturbance? Therefore the air right above the surface of the earth, in what we call, the troposphere, is subject to intense heat that, in turn, warms us the air right above it and warmer air, being less dense, rises. That is during daytime.Why troposphere is thicker at equator?
The troposphere is thicker over the equator than the poles because the equator is warmer. Heat differential on the planet's surface causes convection currents to flow from the equator to the poles. This implies that the warmer the weather, the thicker is the troposphere.What is the reason of increasing warming tendency with increasing altitude in stratosphere?
In the stratosphere, temperature increases with altitude. The reason is that the direct heat source for the stratosphere is the Sun. A layer of ozone molecules absorbs solar radiation, which heats the stratosphere.How the density of air vary with increase of altitude?
The density of air decreases with height. There are two reasons: at higher altitudes, there is less air pushing down from above, and gravity is weaker farther from Earth's center. So at higher altitudes, air molecules can spread out more, and air density decreases (Figure below).What are the 7 layers of atmosphere?
The 7 Layers the Earth's Atmosphere- Exosphere.
- Ionosphere.
- Thermosphere.
- Mesosphere.
- Ozone Layer.
- Stratosphere.
- Troposphere.
- Earth's Surface.
