What is the range of atmospheric pressure on Earth?

What is the range of atmospheric pressure on Earth?

Altitude variation

Parameter Description Value
p0 Sea level standard atmospheric pressure 101325 Pa
L Temperature lapse rate, = g/cp for dry air ~ 0.00976 K/m
cp Constant-pressure specific heat 1004.68506 J/(kg·K)
T0 Sea level standard temperature 288.16 K

Where is the most pressure on Earth?

Siberia
The highest barometric pressure ever recorded was 1083.8mb (32 in) at Agata, Siberia, Russia (alt. 262m or 862ft) on 31 December 1968. This pressure corresponds to being at an altitude of nearly 600 m (2,000 ft) below sea level!

Is 1020 millibars high pressure?

Meteorologists often express air pressure in units called “millibars.” The standard atmospheric pressure is defined as being equal to 1,013.25 millibars at sea level. In the Central Valley, 1,030 millibars and above is considered strong high pressure.

What is the ideal barometric pressure for humans?

30 inches of mercury
Vanos said people are most comfortable with barometric pressure of 30 inches of mercury (inHg). When it rises to 30.3 inHg or higher, or drops to 29.7 or lower, the risk of heart attack increases.

What is the value of one atmospheric pressure?

approximately 14.7 pounds per square inch
One standard atmosphere, which is also referred to as one atmosphere, is equivalent to 101,325 pascals, or newtons of force per square metre (approximately 14.7 pounds per square inch).

What is the highest pressure a human can withstand?

A person can withstand perhaps 100 atmospheres of pressure if they aren’t breathing air – divers do it. If they are breathing air, the limit is just a handful of atmospheres.

Which city has the highest air pressure?

That December was also the coldest December on record for Sioux Falls, South Dakota, and Sioux City, Iowa. Agata, Russia, holds the world’s highest measured barometric pressure reading of 1083.3 millibars on Dec. 31, 1968. Agata is located in the Central Siberian Plateau at an elevation of 855 feet.

How many millibars is considered high pressure?

Remember that standard sea-level pressure is around 1013 millibars, while a very strong high pressure system in the winter may measure around 1050 millibars.

Is 1025 a high pressure?

High pressure at one place sets up a force pushing air towards areas of low pressure. The unit for pressure is hectopascals (hPa), they are indicated by the littl e numbers on a pressure map. For example, 990 hPa is very typical for a low, 1025 would be very typical for a high.

IS 30 in Hg high pressure?

A barometer reading of 30 inches (Hg) is considered normal. Strong high pressure could register as high as 30.70 inches, whereas low pressure associated with a hurricane can dip below 27.30 inches (Hurricane Andrew had a measured surface pressure of 27.23 just before its landfall in Miami Dade County).

Can barometric pressure affect the human body?

Some people may be more sensitive to weather changes experiencing more stiffness, pain, and swelling with a barometric pressure decline. Scientists suggest that a fall in air pressure allows the tissues (including muscles and tendons) to swell or expand.

What is not equal to 1 atmospheric pressure?

Note: At 1 atm pressure, the height of mercury in a capillary is generally considered 76 cm. Some students might confuse 1 atmospheric pressure as 76 or 760, but they must keep in mind that 76 cm or 760 mm is the height of mercury, it is length not pressure.

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

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

How is the pressure of the air around you measured?

Barometer. The air around you has weight, and it presses against everything it touches. 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 much pressure is in the atmosphere per square inch?

atmosphere (atm) Noun. (atm) unit of measurement equal to air pressure at sea level, about 14.7 pounds per square inch. Also called standard atmospheric pressure.

What is the average atmospheric pressure at sea level?

Kollsman-type barometric aircraft altimeter (as used in North America) displaying an altitude of 80 ft (24 m). The mean sea level pressure (MSLP) is the average atmospheric pressure at sea level. This is the atmospheric pressure normally given in weather reports on radio, television, and newspapers or on the Internet.