This jet stream is responsible for bringing western disturbances from the Mediterranean region in to the Indian sub-continent. Winter rain and heat storms in north-western plains and occasional heavy snowfall in hilly regions are caused by these disturbances.
How does air circulation affect climate?
Atmospheric circulation is an essential part of Earth’s climate system because it redistributes heat around the planet. … They carry heat from tropical regions to polar regions to keep them inhabitable. They prevent areas around the equator from becoming hotter and polar regions from becoming colder.
How does upper air circulation affect climate in India?
Upper air circulation, the jet stream influences the monsoon as well as the climate in India. The easterly jet stream of the summer season helps with the onset of the South-West monsoon. The South branch of the jet stream in the winter season intensifies high pressure centres over the North-Western India.
What is the upper air circulation?
Warm air rises over a warm region. This is called convention and it creates low pressure. The air then cools down with altitude and moves aside. This is called advection or upper air circulation.
How do wind and air masses affect climate?
When winds move air masses, they carry their weather conditions (heat or cold, dry or moist) from the source region to a new region. When the air mass reaches a new region, it might clash with another air mass that has a different temperature and humidity. This can create a severe storm.
How does wind affect the climate of a place?
Wind carries moisture into an atmosphere, as well as hot or cold air into a climate which affects weather patterns. Therefore, a change in wind results in a change of weather. … Wind travels from areas of high pressure to areas of low pressure. Additionally, heat and pressure cause the wind to shift direction.
What causes upper air circulation?
This pattern, called atmospheric circulation, is caused because the Sun heats the Earth more at the equator than at the poles. It’s also affected by the spin of the Earth. In the tropics, near the equator, warm air rises.
What are jet streams 9 geography?
Jet Streams are a narrow belt of high altitude (above 12,000 m) westerly winds in the troposphere. Their speed varies from about 110 km/h in summer to about 184 km/h in winter. A number of separate jet streams have been identified.
What are the 6 major factors that affect climate?
LOWERN is an acronym for 6 factors that affect climate.
- Latitude. It depends on how close or how far it is to the equator. …
- Ocean currents. Certain ocean currents have different temperatures. …
- Wind and air masses. Heated ground causes air to rise which results in lower air pressure. …
- Elevation. …
What kinds of winds occur in the upper air?
Upper-air winds, called geostrophic winds, blow parallel to the isobars and reflect a balance between the pressure-gradient force and the Coriolis effect. Upper-air winds are faster than surface winds because friction is greatly reduced aloft. Friction slows surface winds, which in turn reduces the Coriolis effect.
Does affecting India’s climate?
Latitude, attitude, pressure and winds are factors that influence the India’s climate. The Tropic of Cancer passes through the middle of the country from the Rann of Kuchchh in the west to Mizoram in the east. … These winds originate from the subtropical high-pressure belt of the northern hemisphere.
Which of the following is an important component in upper air circulation?
The upper circulation in India is jet streams. The upper air circulation is dominated by the westerly flow, whose important component is the jet streams. The jet streams are located approximately over 27-degree to 30-degree north latitude.
How does air and ocean circulation impact weather and climate?
Ocean water is constantly evaporating, increasing the temperature and humidity of the surrounding air to form rain and storms that are then carried by trade winds. … Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth’s surface.
How does air affect our weather?
The way the air moves affects the weather, because winds move heat and cold temperatures as well as moisture from one place to another, transporting conditions from one geographical zone to another. The way winds pass each other, and the direction they move, also affects what weather a region will see on any given day.
How does warm air affect the weather?
This happens when the temperature of air is increased. Warm air molecules have more energy, so they move faster and create more pressure. … When heat is added, air temperature and pressure both increase. And, when the density of air changes, the pressure (and sometimes the temperature) does as well.