Air pressure affects the weather by influencing the movement of air around the planet; areas of low pressure generally develop clouds and precipitation, while areas of high pressure tend to bring clear, sunny weather conditions. Air pressure refers to the force exerted by the atmosphere on the surface of the Earth.Know More
The atmosphere is an ocean of gases that circulate above the planet's surface. It contains tiny, randomly moving air particles that exert their weight above a given area, known as atmospheric pressure or air pressure. Air pressure is inversely proportional to altitude. The higher the elevation, the lower the air pressure. Conversely, the nearer to the Earth's surface, the greater the air pressure. At sea level, the standard atmospheric pressure is given as 1031 hectopascals. Air pressure, along with geography, temperature and humidity, are some of the factors that drive particular weather conditions.
Areas of low pressure are caused by rising warm air while areas of high pressure result from descending cold air. On weather maps, low and high pressure systems are identified using isobars, which are lines connecting places having equal pressures at sea level. When a low pressure system, or a depression, develops over a region, the ascending warm air cools. When it reaches saturation point, the cooled air forms clouds, often followed by precipitation. Areas of very low pressure tend to have stormy weather. When a high pressure system develops, also known as anticyclone, the descending air dissipates cloud formation and calm, dry weather conditions prevail.Learn more about Rain
With an average temperature of minus 288 degrees Fahrenheit and frequent, powerful storms throughout the planet, Saturn is not hospitable to life. Unlike most planets in the Milky Way, Saturn derives its heat from its core rather than from the Sun. The planet is known as a gas giant; it is primarily composed of gases, including hydrogen and molecular helium.Full Answer >
A stationary front may bring cloudy and wet weather to the area. If there is enough moisture in the warm air mass, there is some type of precipitation, such as rain or freezing rain. However, if the warm front is dry, then no precipitation falls.Full Answer >
When clouds are fluffy and low to the ground they make the temperature cooler, but if they are high in the atmosphere they keep the Earth warmer. They do this in several ways, including absorbing the heat transmitted from the sun. How clouds affect the weather is likely to change because of global warming.Full Answer >
Air is important for the planet because it contains the gases necessary to support plants, animals and other organisms. Additionally, the presence of an atmosphere keeps the Earth at a habitable temperature.Full Answer >