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The East Asian monsoon is a monsoon
Monsoon

A monsoon is a seasonal prevailing wind that lasts for several months. The term was first used in English in India, Bangladesh, Pakistan, and neighboring countries to refer to the big seasonal winds blowing from the Indian Ocean and Arabian Sea in the southwest bringing heavy rainfall to the region....
al flow that carries moist air from the Indian Ocean
Indian Ocean

The Indian Ocean is the third largest of the world's oceanic divisions, covering about 20% of the water on the Earth's surface. It is bounded on the north by Asia ; on the west by Africa; on the east by Indochina, the Sunda Islands, and Australia; and on the south by the Southern Ocean ....
 and Pacific Ocean
Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. Its name is derived from the Latin name Mare Pacificum, "peaceful sea", bestowed upon it by the Portugal explorer Ferdinand Magellan....
 to East Asia
East Asia

East Asia is a subregion of Asia that can be defined in either Geography or cultural terms. Geography and geopolitically, it covers about 12,000,000 km?, or about 28 percent of the Asian continent, about 15 percent bigger than the area of Europe, though some categorize Tibet, Xinjiang, and Mongolia as Central Asia....
. It affects approximately one-third of the global population, and the countries China
People's Republic of China

The People's Republic of China , commonly known as China, is the largest country in East Asia and the List of countries by population in the world with over 1.3 billion people, approximately a fifth of the world's population....
, Japan
Japan

Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, People's Republic of China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south....
, North Korea
North Korea

North Korea, officially the Democratic People's Republic of Korea , is a state in East Asia, occupying the northern half of the Korean Peninsula....
, South Korea
South Korea

South Korea, officially the Republic of Korea , ), often referred to as Korea and the "names of Korea#Revival of the names", is a Semi-presidential system republic in East Asia, located in the southern half of the Korean Peninsula....
, etc.. It is driven by temperature differences between the Asia
Asia

Asia is the world's largest and most populous continent. It covers 8.6% of the Earth's total surface area and, with over 4 billion people, it contains more than 60% of the world's current human population....
n continent and the Pacific Ocean
Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. Its name is derived from the Latin name Mare Pacificum, "peaceful sea", bestowed upon it by the Portugal explorer Ferdinand Magellan....
. The East Asian monsoon is divided into a warm and dry summer monsoon and a cold and wet winter monsoon. This cold and dry winter monsoon is responsible for the aeolian
Aeolian

Aeolian may refer to:* things related to ?olus, the Greek God of wind* Aeolian harp, a harp that is played by the wind* Aeolian processes, wind generated geologic processes...
 dust deposition and pedogenesis
Pedogenesis

Pedogenesis or soil evolution is the process by which soil is created. It is the major topic of the science of pedology , whose other aspects include the soil morphology, soil classification of soils, and their distribution in nature, present and past ....
 that resulted in the creation of the Loess Plateau
Loess Plateau

The Loess Plateau , also known as the Huangtu Plateau, is a plateau that covers an area of some 1 E11 m? in the upper and middle of China's Yellow River and China proper ....
.

In most years, the monsoonal flow shifts in a very predictable pattern, winds being southwesterly in late June to water the Korean peninsula
Korean Peninsula

The Korean Peninsula is a peninsula in East Asia. It extends southwards for about 684 miles from continental Asia into the Pacific Ocean and is surrounded by the Sea of Japan on the east, the East China Sea to the south, and the Yellow Sea to the west, the Korea Strait connecting the first two bodies of water....
 and Japan.






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Encyclopedia


The East Asian monsoon is a monsoon
Monsoon

A monsoon is a seasonal prevailing wind that lasts for several months. The term was first used in English in India, Bangladesh, Pakistan, and neighboring countries to refer to the big seasonal winds blowing from the Indian Ocean and Arabian Sea in the southwest bringing heavy rainfall to the region....
al flow that carries moist air from the Indian Ocean
Indian Ocean

The Indian Ocean is the third largest of the world's oceanic divisions, covering about 20% of the water on the Earth's surface. It is bounded on the north by Asia ; on the west by Africa; on the east by Indochina, the Sunda Islands, and Australia; and on the south by the Southern Ocean ....
 and Pacific Ocean
Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. Its name is derived from the Latin name Mare Pacificum, "peaceful sea", bestowed upon it by the Portugal explorer Ferdinand Magellan....
 to East Asia
East Asia

East Asia is a subregion of Asia that can be defined in either Geography or cultural terms. Geography and geopolitically, it covers about 12,000,000 km?, or about 28 percent of the Asian continent, about 15 percent bigger than the area of Europe, though some categorize Tibet, Xinjiang, and Mongolia as Central Asia....
. It affects approximately one-third of the global population, and the countries China
People's Republic of China

The People's Republic of China , commonly known as China, is the largest country in East Asia and the List of countries by population in the world with over 1.3 billion people, approximately a fifth of the world's population....
, Japan
Japan

Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, People's Republic of China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south....
, North Korea
North Korea

North Korea, officially the Democratic People's Republic of Korea , is a state in East Asia, occupying the northern half of the Korean Peninsula....
, South Korea
South Korea

South Korea, officially the Republic of Korea , ), often referred to as Korea and the "names of Korea#Revival of the names", is a Semi-presidential system republic in East Asia, located in the southern half of the Korean Peninsula....
, etc.. It is driven by temperature differences between the Asia
Asia

Asia is the world's largest and most populous continent. It covers 8.6% of the Earth's total surface area and, with over 4 billion people, it contains more than 60% of the world's current human population....
n continent and the Pacific Ocean
Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. Its name is derived from the Latin name Mare Pacificum, "peaceful sea", bestowed upon it by the Portugal explorer Ferdinand Magellan....
. The East Asian monsoon is divided into a warm and dry summer monsoon and a cold and wet winter monsoon. This cold and dry winter monsoon is responsible for the aeolian
Aeolian

Aeolian may refer to:* things related to ?olus, the Greek God of wind* Aeolian harp, a harp that is played by the wind* Aeolian processes, wind generated geologic processes...
 dust deposition and pedogenesis
Pedogenesis

Pedogenesis or soil evolution is the process by which soil is created. It is the major topic of the science of pedology , whose other aspects include the soil morphology, soil classification of soils, and their distribution in nature, present and past ....
 that resulted in the creation of the Loess Plateau
Loess Plateau

The Loess Plateau , also known as the Huangtu Plateau, is a plateau that covers an area of some 1 E11 m? in the upper and middle of China's Yellow River and China proper ....
.

In most years, the monsoonal flow shifts in a very predictable pattern, winds being southwesterly in late June to water the Korean peninsula
Korean Peninsula

The Korean Peninsula is a peninsula in East Asia. It extends southwards for about 684 miles from continental Asia into the Pacific Ocean and is surrounded by the Sea of Japan on the east, the East China Sea to the south, and the Yellow Sea to the west, the Korea Strait connecting the first two bodies of water....
 and Japan. This leads to a reliable precipitation spike in July and August. However, this pattern occasionally fails, leading to drought and crop failure. In the winter, the winds are northeasterly and the monsoonal precipitation bands move back to the south, watering southern China and Taiwan
Taiwan

Taiwan is an island in East Asia. "Taiwan" is also commonly used to refer to the country governed by the Republic of China and to the ROC itself, which governs the island of Taiwan, Orchid Island and Green Island, Taiwan in the Pacific Ocean off the Taiwan coast, the Penghu islands in the Taiwan Strait, and Kinmen and the Matsu Islands...
.

The East Asian monsoon is known as jangma in Korea
Korea

Korea is a geographic area composed of two sovereign countries, a civilization, and a former state situated on the Korean Peninsula in East Asia....
. In Japan the monsoon boundary is referred to as the bai-u as it advances northward during the spring, while it is referred to as the shurin when the boundary retreats back southward during the autumn months. Over Japan and Korea, the monsoon boundary typically takes the form of a quasi-stationary front
Stationary front

A stationary front is a boundary between two different air masses, neither of which is strong enough to replace the other. On a weather map, this is shown by an inter playing series of blue spikes pointing one direction, then red domes pointing the other.They tend to remain essentially in the same area for extended periods of time, and waves...
 separating the cooler air mass associated with the Okhotsk High
Okhotsk High

Semi-permanent high pressure system that forms over the Sea of Okhotsk during the summer months. Its associated air mass is maritime polar, marked with frequent sea fog over ocean areas, and cool and moist conditions over land....
 to the north from the hot, humid air mass associated with the subtropical ridge
Subtropical ridge

The subtropical ridge is a large belt of High pressure area situated around the latitudes of 30th parallel north in the Northern Hemisphere and 30th parallel south in the Southern Hemisphere....
 to the south. After the monsoon boundary passes north of a given location, it is not uncommon for daytime temperatures to exceed 90 degrees Fahrenheit (32 degrees Celsius) with dewpoints of 75 degrees Fahrenheit (24 degrees Celsius) or higher.

There has been some speculation that climate change
Climate change

Climate change is any long-term significant change in the expected patterns of average weather of a specific region over an appropriately significant period of time....
 will disrupt or change the monsoonal pattern.

See also

  • East Asian rainy season
    East Asian rainy season

    The East Asian rainy season is the frontal Precipitation caused by the tsuyu weather front, a persistent east-west zone of disturbed weather during spring which is quasi-stationary and stretches from the east China coast, across Taiwan, and eastward into the south of Japan....
  • List of Korea-related topics
    List of Korea-related topics

    This is a list of articles on Korea-related people, places, things, and concepts. For help on how to use this list, see the #Introduction below....
  • List of China-related topics
    List of China-related topics

    The list of People's Republic of China-related topics has been split into two articles.*List of China-related articles *List of China-related articles ...
  • List of Japan-related topics
    List of Japan-related topics

    Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of People's Republic of China, Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea in the south....


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