Where is orographic precipitation most common?
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Asked by: Jeff Edwards
Orographic precipitation is well known on oceanic islands, such as the Hawaiian Islands or New Zealand, where much of the rainfall received on an island is on the windward side, and the leeward side tends to be quite dry, almost desert-like, by comparison.
Where is orographic precipitation commonly occur?
As the air rises and cools, orographic clouds form and serve as the source of the precipitation, most of which falls upwind of the mountain ridge.
Where does orographic effect take place?
The orographic effect occurs when air masses are forced to flow over high topography. As air rises over mountains, it cools and water vapor condenses. As a result, it is common for rain to be concentrated on the windward side of mountains, and for rainfall to increase with elevation in the direction of storm tracks.
Why does orographic rainfall occur in most parts of world?
Answer 3: Orographic rainfall occurs in most of the world: Orographic rainfall occurs because of the obstruction of moisture laden clouds by the mountains and areas of high altitudes. These clouds are generally blown by the winds.
Is an best example of orographic rainfall?
It is also known as the relief rain. Example: Mahabaleshwar, situated on the Western Ghats, receives more than 600 cm of rainfall, whereas Pune, lying in the rain shadow area, has only about 70 cm.
When and where do orographic occur?
As airflow encounters a mountain or hill, it is forced to rise; this is referred to as orographic lift. If the flow is sufficiently humid, clouds form on the windward side of mountains and are called orographic clouds (Figure 2).
Where does orographic rainfall occur in India?
In India, rainfall is orographic in nature as heavy rains occurs on the windward slopes of the Western Ghats and scanty rainfall on the leeward side. Thus, Mahabaleshwar lying on the windward side receives more than 250 cm of rainfall, while Pune on the leeward side records less than 70 cm of rainfall.
Where does orographic rainfall occur in Brazil?
Answer. Explanation: In Brazil, Northeast areas receives orographic type of rainfall. Orographic rainfall occurs when the rain bearing winds strike against the mountains and this immediately results in precipitation on the windward side of those mountains.
Why does the India experience orographic rainfall?
The warm and moist air from the Arabian sea is blocked by the Western Ghats and gets lifted over mountain ranges. As the air rises and cools, orographic clouds are formed resulting in precipitation and dry winds to blow over Peninsular India.
Which type of rainfall occurs in India?
Most of India’s rainfall is convectional. The convectional rainfall is prevalent in equatorial regions. In these, the warm air rises up and expands then, reaches at a cooler layer and saturates, then condenses mainly in the form of cumulus or cumulonimbus clouds.
Which type of rainfall occurs in Brazil?
Most of Brazil has moderate rainfall of between 1,000 and 1,500 millimetres (39 and 59 in) a year, most of it coming between December and April. The driest part of the country is the northeast, where rainfall is erratic and the evaporation rate very high, making it difficult to grow crops.
Which type of rainfall occurs in Himalayan region?
Orographic rain is found in himalayan region.
Which type of rainfall occurs in western coast of India?
The western coast of India receives convectional type of rainfall. In conventional rainfall generally the land warms up and it heats the air present there which causes it to expand and rise. Further, the air rises it cools and it then condenses to form the rain.
What are the two sources of rainfall for Punjab and Haryana?
Answer: Three sources of rainfall in punjab is arabian sea branch, bay of bengal sea branch and western depression.
Which is driest place in India?
Driest – Leh
Sitting at an elevation of 11500 ft, the town of Leh is the driest spot in India. While it boasts of a cold desert climate, temperatures during the winters can go below freezing point. Also, it receives the least rainfall.
Which of the following is the main cause of heavy rainfall in Tamilnadu during winters?
North-east trade winds
Complete answer:
Option A – North-east trade winds is the main reason behind winter rainfall in Tamil Nadu. As the state is situated in the eastern coast of India, the southern portion of India receives rainfall from the Southwest monsoons which are obstructed by the Western Ghats.
Why does Konkan coast receive orographic rainfall?
The Konkan Coast experiences orographic rainfall because the monsoon winds which blow over the Arabian Sea strike the western side of the Western Ghats resulting in heavy rainfall. By the time these winds reach the Eastern Ghats, they are already dry as they have already shed their moisture.
Why are south West monsoon less rainy in Tamil Nadu explain?
Why are South West monsoons less rainy in Chennai? The Arabian Sea branch of South West Monsoons strike west ghats, first. After crossing, west ghats, these winds descend down the leeward slope of west ghats where they do not give much rain. The Karnataka and Tamil Nadu remain in rain shadow.
Why does Tamil Nadu coast receives rainfall in winter?
When the winds blow from sea to land, it picks up moisture from the sea and brings rainfall in the country. Due to the geographical location, the east coast receives rainfall as the north east trade winds blow from sea to land in this location. Hence the coast of Tamil Nadu receives winter rainfall.
Why does rainfall decrease from east to west in northern India?
Rainfall decreases from the east to the west in Northern India because there is a decrease in the moisture content of the winds.
Why does western Rajasthan receives low rainfall?
The state of Rajasthan receive scanty rainfall because it lies in the rain-shadow region of the Aravalli Mountains. The Aravalli Hills run parallel to the Arabian Sea branch, and thus do not form any barrier to intercept the winds. The winds thus passes through Rajasthan without causing any rainfall.
Why does Delhi receive more rain than Jodhpur?
(vi) Why does Delhi receive more rain than Jodhpur? Answer :Due to the decrease in the humidity of the monsoon winds, the amount of rainfall decreases from east to west in northern India. Delhi lies to the east of Jodhpur therefore it receives more rain.
Why is July Rainier in Mumbai than in Thiruvananthapuram?
South West Monsoons reach Thiruvananthapuram by 1st of June. But in July, there is a break in monsoons thereby reducing rainfall. In Mumbai, South West Monsoons reach by 10th June causing continuous rainfall for a month. Hence, July is rainier in Mumbai.
Which among the followings receives highest rainfall a Kolkata B Shillong C Delhi D Bengaluru?
The correct answer is Raipur. The average rainfall of Raipur is 1489 mm. The average rainfall of Delhi is nearly 617-800mm. The average rainfall of Bengaluru is 970 mm.
