# What happens to the atmospheric pressure as we go up from the earth surface?

## What happens to the atmospheric pressure as we go up from the earth surface?

Pressure with Height: pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels.

What is the pressure near the Earth’s surface?

about 14.7 pounds per square inch
The standard, or near-average, atmospheric pressure at sea level on the Earth is 1013.25 millibars, or about 14.7 pounds per square inch. The gauge pressure in my automobile tires is a little more than twice that value.

### Why is the atmospheric pressure highest near Earth’s surface?

Most gas molecules in the atmosphere are pulled close to Earth’s surface by gravity, so gas particles are denser near the surface. With greater depth of the atmosphere, more air is pressing down from above. Therefore, air pressure is greatest at sea level and falls with increasing altitude.

Why atmospheric pressure decreases as we go higher up above the Earth’s surface Brainly?

Atmospheric pressure is created by atmosphere. Atmospheric pressure decreases as we go higher up above the earth’s surface because at higher altitude gravitational force is less resulting into lesser amount of pressure by air molecule/ atmosphere.

#### Why does the air pressure change at the surface?

Weather maps showing the pressure at the surface are drawn using millibars. Although the changes are usually too slow to observe directly, air pressure is almost always changing. This change in pressure is caused by changes in air density, and air density is related to temperature.

Where is the atmospheric pressure the highest and lowest on earth?

Variations about these values are quite small; for example, the highest and lowest sea-level pressures ever recorded are 32.01 inches (in the middle of Siberia) and 25.90 inches (in a typhoon in the South Pacific). The small variations in pressure that do exist largely determine the wind and storm patterns of Earth.

## Why the atmospheric pressure decrease when we go up in the atmosphere?

As we move up through levels of the atmosphere, the air has less air mass above it and gravity isn’t strong enough to pull down a greater number of particles. So the balancing pressure decreases. This is why atmospheric pressure drops as we rise in altitude.

Why does air pressure decrease at the surface of the Earth?

Above every square inch on the surface of the Earth is 14.7 pounds of air. That means air exerts 14.7 pounds per square inch (psi) of pressure at Earth’s surface. High in the atmosphere, air pressure decreases. With fewer air molecules above, there is less pressure from the weight of the air above.

### How much pressure is at the bottom of the atmosphere?

We live at the bottom of the atmosphere, and the weight of all the air above us is called air pressure. Above every square inch on the surface of the Earth is 14.7 pounds of air. That means air exerts 14.7 pounds per square inch (psi) of pressure at Earth’s surface.

How is the pressure on the surface of the Earth measured?

That pressure is called atmospheric pressure, or air pressure. It is the force exert ed on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer.

#### How is atmospheric pressure affected at high altitudes?

High altitudes are typically found above sea level. Atmospheric pressure is measured as the weight of the air above a surface. Atmospheric pressure is affected by gravity, which is strong at lower altitudes and weak at higher altitudes.