Why Does Most Weather Occur In The Troposphere?
The troposphere is denser than all its overlying atmospheric layers because a larger atmospheric weight sits on top of the troposphere and causes it to be most severely compressed. … Nearly all atmospheric water vapor or moisture is found in the troposphere so it is the layer where most of Earth’s weather takes place.
How does weather happen in the troposphere?
Most of the mass (about 75-80%) of the atmosphere is in the troposphere and almost all weather occurs within this layer. … As one rises through the troposphere the temperature decreases. Air pressure and the density of the air also decrease with altitude.
Why does most weather occur only in one layer of the atmosphere?
Living at the surface of the Earth we are usually only aware of the events happening in the lowest layer the troposphere where all weather occurs. The base of this layer is warmer than its top because the air is heated by the surface of the Earth which absorbs the Sun’s energy.
Why all the weather phenomena takes place in the troposphere?
Answer: The weather activities occur primarily in the troposphere because troposphere contains water vapour dust particles and other elements. … That is why troposphere is called the weather making layer . That is why all weather phenomena occur mainly in troposphere.
Why does the weather and most of the pollution stay in the troposphere?
The temperature at its upper boundary is very cold (roughly -60º C). Because hot air rises and cold air falls there is a constant convective overturn of material in the troposphere. Indeed the name troposphere means “region of mixing.” For this reason all weather phenomena occur in the troposphere.
What is responsible for weather systems in the troposphere?
The uneven heating of the regions of the troposphere by the sun ( the sun warms the air at the equator more than the air at the poles )causes convection currents large-scale patterns of winds that move heat and moisture around the globe.
Where does most weather occur in the atmosphere?
Why is atmospheric pressure greatest in the troposphere?
Why do weather phenomena occur?
What happens to the temperature as you go higher in the troposphere?
All weather phenomena occur within the troposphere although turbulence may extend into the lower portion of the stratosphere. Troposphere means “region of mixing” and is so named because of vigorous convective air currents within the layer.
Why does weather occur in the troposphere and not in other layers of the atmosphere?
The troposphere is denser than all its overlying atmospheric layers because a larger atmospheric weight sits on top of the troposphere and causes it to be most severely compressed. … Nearly all atmospheric water vapor or moisture is found in the troposphere so it is the layer where most of Earth’s weather takes place.
Why is the troposphere higher at the 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. … Thus the simple reason is thermal expansion of the atmosphere at the equator and thermal contraction near the poles.
Why do temperatures decrease in the troposphere and increase in the stratosphere?
How does air pressure affect weather in the troposphere?
It is associated with light winds at the surface and subsidence through the lower portion of the troposphere. When pressure increases more air fills the space left from the low and subsidence evaporates most of the atmosphere’s water vapour. … Hence we can say that the Atmospheric pressure is an indicator of weather.
What is the troposphere most influenced by?
Planetary boundary layer. The lower levels of the troposphere are usually strongly influenced by Earth’s surface. This sublayer known as the planetary boundary layer is that region of the atmosphere in which the surface influences temperature moisture and wind velocity through the turbulent transfer of mass.
Why is troposphere very important for life forms on the earth explain with respect to weather and climate?
Importance of troposphere to life on earth
The study of the troposphere is very important because we breathe the air in this layer of air. … Tropospheric processes such as the water or hydrologic cycle (the formation of clouds and rain) and the greenhouse effect have a great influence on meteorology and the climate.
What happens in troposphere?
Why is the situation in the 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. And all weather and atmospheric activities (thunder storm rainfall clouds formation etc.)
Why does the troposphere have the highest air pressure compared to the other atmospheric layers?
Why does the troposphere experience the greatest amount of atmospheric pressure compared to the other atmospheric layers? It contains a high concentration of gas particles. … An atmospheric layer of a specific gas provides shielding from harmful ultraviolet light from the sun allowing life to thrive on Earth.
Why does air pressure decrease from the troposphere to the thermosphere?
For instance if you live at a higher altitude the pressure will be less than when you travel to lower altitudes. Pressure also changes as weather patterns move through areas. … Air pressure is so minimal at the top of the thermosphere that an air molecule can travel large distances before hitting another air molecule.
What is the air pressure in the troposphere?
This first layer is called the troposphere and ranges in pressure from over 1 000 millibars at sea level to 100 millibars at the top of the layer the tropopause.
Where does weather occur and why?
All weather happens in the lower layer of Earth’s atmosphere which is a layer of gases surrounding Earth. The sun’s heat warms the air in this layer to different temperature levels in different places. Warm air rises and cold air then rushes in underneath to replace it. This movement of air is what we call wind.
What weather phenomenon has the highest wind speeds?
The fastest wind speed ever recorded comes from a hurricane gust. On April 10 1996 Tropical Cyclone Olivia (a hurricane) passed by Barrow Island Australia. It was the equivalent of a Category 4 hurricane at the time 254 mph (408 km/h).
What is weather Brainly in?
Weather can be defined as the atmospheric condition of any definite place for a definite period of time. It is generally the day-to-day condition of the atmosphere of any place with reference to temperature wind conditions rainfall pressure and cloudiness. Read on. Read on.
Why is the bottom of the troposphere warmer than the top?
Although the sun light comes from the top to the bottom of the atmosphere the troposphere is primarily heated from the bottom. This is because the surface is much better at absorbing a wide range of solar radiation as compared to the air.
How does the temperature of the air in the troposphere change from the bottom of the arrow to the top of the arrow?
Temperatures decrease (get cooler) with increasing altitude in the troposphere. … The troposphere is warmest at the bottom near Earth’s surface. The troposphere is coldest at its top where it meets up with the layer above (the stratosphere) at a boundary region called the tropopause.
What does the air in the troposphere do as it heats up from the sun?
What does the air in the troposphere do as it heats up from the sun? Hot air rises cold air sinks. This creates convection currents.
Which strata of the atmosphere is responsible for the weather phenomena and why?
The Thermosphere
75 percent of the entire atmosphere is comprised of the troposphere which is the lowest level of the atmosphere. It extends to a maximum height of 16 kilometers (9.9 miles) at the equator. It’s in this layer that the majority of weather is determined/occurs.
Why the atmosphere is the most dynamic entity?
The atmosphere is the result of energy from the sun producing the movements or currents in the atmosphere. The atmosphere is most dynamic in nature because it holds gases and harmful rays to protect the earth to make weather.
Is atmosphere responsible for all weather phenomena?
Hint: Weather and its related phenomena are all dependent almost entirely on water vapor and its concentration. As we know water vapour is present in the lowest layer of the atmosphere. Thus the lowest layer is where all weather phenomena take place.
What causes the increase in temperature with altitude in this layer?
The stratosphere reaches from the tropopause to a height of about 50 km. Temperature in the stratosphere rises with increasing altitude because the ozone layer absorbs the greater part of the solar ultraviolet radiation. The ozone layer is an absorbing agent that protects life on Earth.
Why do daily temperature ranges decrease as you increase in altitude?
As you increase in elevation there is less air above you thus the pressure decreases. As the pressure decreases air molecules spread out further (i.e. air expands) and the temperature decreases.
Why does temperature increase with altitude in the stratosphere quizlet?
The temperature increases with increasing altitude in the stratosphere because there’s a high concentration of ozone molecules. These ozone molecules absorb UV rays from the Sun and then radiates this energy in the form of infrared waves. Nearby gases can absorb this infrared energy and increase in temperature.
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