It is often cloudy and wet in the UK. This means that there is rising air due to low pressure which means that the rising air cools, condenses and forms clouds and rain. The UK also gets snow and cold winter weather. This is because cold polar air from the north moves down over the UK.

The global atmospheric system is a natural system that acts to reduce the extreme heat difference between the equator and the poles. As the air is moved around, it prevents the equator becoming increasingly hotter and the poles becoming increasingly colder.

The combination of oceanic and atmospheric circulation drives global climate by redistributing heat and moisture. Areas located near the tropics remain warm and relatively wet throughout the year. In temperate regions, variation in solar input drives seasonal changes.

Global Atmospheric Pressure. Because more solar energy hits the equator, the air warms and forms a low pressure zone. The air is sucked back toward the low pressure at the equator. This describes the convection cells north and south of the equator.

The global circulation can be described as the world-wide system of winds by which the necessary transport of heat from tropical to polar latitudes is accomplished. In each hemisphere there are three cells (Hadley cell, Ferrel cell and Polar cell) in which air circulates through the entire depth of the troposphere.

Atmospheric circulation drives oceanic circulation, which determines both the pattern of the circulation and also the amount of Ekman pumping and spatial distribution of sea surface temperatures.

The atmosphere of Earth is the layer of gases, commonly known as air, retained by Earth’s gravity, surrounding the planet Earth and forming its planetary atmosphere. By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases.

Question 26 1 pts Which is true of upper atmospheric circulation? It refers to the winds in the thermosphere. These winds are unrelated to surface weather patterns and of no consequence to the atmosphere’s general circulation. These winds flow principally from the east in the mesosphere.

** The underlying cause for global circulation is the uneven heating of Earth by the Sun. Tropical latitudes receive more solar energy than polar regions. The atmosphere transports heat from the tropics to the poles, and cold air from the poles to tropics, creating global circulation! 2) the three-cell model.