It exists because of the convergence of the trade winds. In the northern hemisphere the northeast trade winds converge with southeast winds from the Southern Hemisphere. The point at which the trade winds converge forces the air up into the atmosphere, forming the ITCZ.
Where is ITCZ now?
In July and August, over the Atlantic and Pacific, the ITCZ is between 5 and 15 degrees north of the Equator, but further north over the land masses of Africa and Asia. In eastern Asia, the ITCZ may propagate up to 30 degrees north of the Equator.
What is another name for the ITCZ?
Known to sailors around the world as the doldrums, the Inter-Tropical Convergence Zone, (ITCZ, pronounced and sometimes referred to as the “itch”), is a belt around the Earth extending approximately five degrees north and south of the equator. … And that’s why they call it the doldrums.
What weather does the ITCZ bring?
As the ITCZ moves north with the thermal equator, it carries the mT winds over the land. This will bring dry weather. As the ITCZ moves north with the thermal equator, it carries the mT winds over the land. This will bring wet weather.
Why does the ITCZ shift seasonally?
The shifting of ITCZ is the result of the Earth’s rotation, axis inclination and the translation of Earth around the Sun. Seasons are the result of this. ITCZ moves toward the hemisphere with most heat, wich are either hemisphere summers.
Does ITCZ occur in the Philippines all year round?
The Philippines only have two seasons, which are the dry and wet seasons due to the movement of the ITCZ. The ITCZ shifts north and south seasonally with the sun, it moves north in the Northern Hemisphere summer and south in the Northern Hemisphere winter.
Where is the ITCZ Located in September?
The location of the ITCZ can vary as much as 40° to 45° of latitude north or south of the equator on land. It moves toward the Southern Hemisphere from September through February and reverses direction in preparation for Northern Hemisphere Summer.
How long can the doldrums last?
This is designated as the ‘ITCZ/Doldrums Corridor’. Within this corridor a Skipper and crew can elect to motor-sail for exactly 6° of latitude and for a maximum of 60 hours.
Why is the ITCZ not on the equator?
ITCZ stands for Intertropical Convergence Zone. It is a region of clouds, rain, low level convergence and rising air. … The ITCZ has a mean position north of the equator because there is much more landmass in the Northern Hemisphere as compared to the Southern Hemisphere.
What is the difference between monsoon and intertropical convergence zone?
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.
How does ITCZ in the Philippines take place?
The Intertropical Convergence Zone (ITCZ) has oscillated and is now affecting Southern Luzon and Visayas. ITCZ is characterized as an area where winds coming from the Northern and Southern Hemispheres meet; this interaction results to rains in the affected areas.
What is the approximate latitudinal position of the ITCZ in January and in July?
Over the oceans the large areas of convective cloud indicate the location of the ITCZ. Over Africa the position of the ITCZ ranges from 10-40 E and it extends to around 20° S in late summer (January and February) and the seasonal displacement of the ITCZ is sun-synchronous (Suzuki, 2011).
What is the ITCZ What is its significance?
Significance of ITCZ. (i) The ITCZ is a zone of convergence of North-East and the South-East trade wind. (ii) The Northward or Southward movement of it determines the spatial distribution of rainfall. (iii) This zone is the wettest area on the planet, which does not have a dry season.
What is the full form of ITCZ Class 9?
International Tropical Convergence Zone. … Therefore, the name Intertropical Convergence Zone (ITCZ). The ITCZ is called the near-equatorial trough when it lies near the geographic Equator and referred to as monsoon trough when it merges with a monsoonal circulation. It is common in Australia and some parts of Asia.
Who discovered ITCZ?
Duane E. Waliser and Catherine Gautier, 1993: A Satellite-derived Climatology of the ITCZ. J. Climate, 6, 2162–2174.
Why does the ITCZ shift northward between December and June?
Most rain on Earth falls in the tropical rain belt known as the Intertropical Convergence Zone (ITCZ), which on average lies 6° north of the equator. … So when the northern hemisphere warms, for example, because northern ice cover and with it the polar albedo are reduced, the ITCZ shifts northward.
What is created in the ITCZ?
The rising air produces high cloudiness, frequent thunderstorms, and heavy rainfall; the doldrums, oceanic regions of calm surface air, occur within the zone. The ITCZ shifts north and south seasonally with the Sun.
Why does the Philippines has two major seasons only?
Due to high temperature and the surrounding bodies of water, the Philippines has a high relative humidity. … Using temperature and rainfall as bases, the climate of the country can be divided into two major seasons: (1) the rainy season, from June to November; and (2) the dry season, from December to May.
Why is Philippines so hot?
Humidity. Relative humidity is high in the Philippines. A high amount of moisture or vapor in the air makes hot temperatures feel hotter. … The first may be considered as general causes of the great humidity, which is generally observed in all the islands throughout the year.
What is the full form of ITCZ?
ITCZ stands for Intertropical Convergence Zone. It is an area between the Northern and Southern Hemisphere where winds converge from the mid-latitudes blowing equator-ward and winds flowing poleward from the tropics.
Which of the following best describe the movement of the ITCZ from January to July?
Which of the following best describes the movement of the ITCZ from January to July? It moves northward (ITCZ follows the sun). Which of the following pairs of terms are best associated with subtropical high-pressure cells? … Where do the winds that converge at the ITCZ originate?
Why the shift of the ITC zone from the equator towards the northern plains cause the monsoon to form?
Explanation: You must know that winds move from high pressure to low pressure, therefore when the winds meet an area of low pressure is created on the landmass which in turn brings in winds with moisture causing rainfall. This is how the ITCZ affects the Indian monsoon.
How does the shifting ITCZ influence the monsoons?
The area near the equator with low pressure and converging, rising winds is called the Intertropical Convergence Zone (ITCZ). Water vapor condenses as air rises and cools in the ITCZ, forming clouds and falling as rain. … This is where monsoon rainfall occurs.