What is trough monsoon?
Monsoon Trough is an elongated low-pressure area which extends from heat low over Pakistan to Head Bay of Bengal. This is one of semi-permanent feature of monsoon circulation. Monsoon trough may be a characteristic of east west orientation of Himalayan ranges and north south orientation of Khasi-Jaintia Hills.
Why is it called a monsoon trough?
A trough is a belt of low pressure extending to large area. This trough seen during monsoon period, hence known as Monsoon trough.
Is monsoon trough same as ITCZ?
ITCZ – a zonally elongated axis of surface wind confluence of northeasterly (NE) and southeasterly (SE) trade winds in the tropics. Monsoon Trough – the portion of the ITCZ which extends into or through a monsoon circulation, as depicted by a line on a weather map showing the location of minimum sea level pressure.
What is the other name of monsoon trough?
As the Sun moves south or north of the equator, the ITCZ shifts south or north. The ITCZ is also referred to as “monsoon trough”, during the monsoon season. Q. Which pressure belt is known as the Intertropical Convergence Zone?
What is a trough?
1 : a long shallow open container especially for water or feed for livestock. 2 : a channel for water : gutter. 3 : a long channel or hollow.
What is the use of trough?
a long, narrow, open receptacle, usually boxlike in shape, used chiefly to hold water or food for animals. any of several similarly shaped receptacles used for various commercial or household purposes. a channel or conduit for conveying water, as a gutter under the eaves of a building for carrying away rainwater.
How does a trough cause rain?
Like cold fronts, troughs separate two different air masses (usually more moist air on one side and drier air on the other). As the trough moves towards the moist air it lifts it. This causes cloud or even showers and thunderstorms to develop.
Why does monsoon trough shift?
According to studies the formation of monsoon troughs is closely related to the radiation balance of the earth-atmosphere system during the monsoon. Intense rainfall is often generated by low-pressure systems, which appear to be embedded within the monsoon trough.
Why does the monsoon trough move?
How is the monsoon trough responsible for break in monsoon?
As the monsoon trough runs close to foothills of Himalayas, monsoon winds ascend the slopes of Himalayas resulting in orthographic rainfall. This is how a monsoon break works.
What causes a trough in weather?
Troughs form when the jet stream dips southward into a bowl-like shape, and are associated with colder air, low pressure aloft, and a less stable atmosphere. This tends to result in cooler and more unsettled weather conditions.
What does a trough look like?
In the United States, a trough may be marked as a dashed line or bold line. In the UK, Hong Kong and Fiji, it is represented by a bold line extended from a low pressure center or between two low pressure centers; in Macau and Australia, it is a dashed line.
What is called trough?
low point is called the trough. For longitudinal waves, the compressions and rarefactions are analogous to the crests and troughs of transverse waves. The distance between successive crests or troughs is called the wavelength. The height of a wave is the amplitude.
Why are troughs important?
Troughs are important as they mark a positive turning point for the economy. Technical traders also sometimes refer to swing lows as troughs, and swing highs as peaks. Asset prices move up and down, forming peaks and troughs.
What causes a trough weather?
Troughs. A trough appears on the weather map as a dashed blue line on the chart. It is an elongated area where atmospheric pressure is low relative to its immediate surroundings. Like cold fronts, troughs separate two different air masses (usually more moist air on one side and drier air on the other).
What weather does a trough cause?
A trough is an elongated area of relatively low pressure extending from the center of a region of low pressure. Air in a high pressure area compresses and warms as it descends. This warming inhibits the formation of clouds, meaning the sky is normally sunny in high-pressure areas. But haze and fog still might form.
Why do monsoons break into 6 branches?
The south-west monsoon is divided into two branches because of the peninsular shape of India. The Arabian Sea causes rainfall in the western part and the Bay of Bengal brings rainfall in north-eastern India.
What happens during a trough?
A trough is the stage of the economy’s business cycle that marks the end of a period of declining business activity and the transition to expansion. The business cycle is the upward and downward movement of gross domestic product and consists of recessions and expansions that end in peaks and troughs.
What do troughs indicate?
A trough is an elongated area of relatively low pressure extending from the center of a region of low pressure. Air in a high pressure area compresses and warms as it descends. This warming inhibits the formation of clouds, meaning the sky is normally sunny in high-pressure areas.
What weather do troughs bring?
How do troughs influence the weather? Troughs form when the jet stream dips southward into a bowl-like shape, and are associated with colder air, low pressure aloft, and a less stable atmosphere. This tends to result in cooler and more unsettled weather conditions.
What’s a trough in weather?
Do troughs cause storms?
Approaching troughs are associated with frontal storm systems that can produce all different types of weather depending on the time of year, from snow in the winter months to thunderstorms and heavy rain in the spring and summer.
Does a trough bring rain?
Which branch of monsoon is more powerful?
The Arabian Sea branch of
The Arabian Sea branch of monsoon is much more powerful than the Bay of Bengal branch because .
Does retreating monsoon bring rain?
Impact of Retreating Monsoon
The retreating monsoon brings rainfall in an uneven amount to different places across India.