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At the south pole for 2008, the largest ozone "hole" size (27 million square kilometers) was on September 12, the least ozone on a vertical path (100 Dobson units as compared to ~220 for summer values) occurred on October 4.

The north pole should have a similar feature about six months earlier / later, when the Sun is not shining on the north pole, then starts shining on it.

Note that an "ozone hole" is not truly a hole, as there is still some ozone in the atmosphere there.

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14y ago
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9y ago

It occurs during winters. This is when the ozone depletion occurs.

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Ozone hole occurs only when the temperature is low. It is because low temperature initiates the ozone depletion.

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The ozone hole is biggest in winters. It is due to the low temperatures.

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The South
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Q: During what season in the southern hemisphere does the ozone hole become largest?
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Where are bogs found?

Bogs are most abundant in the Northern Hemisphere, especially in a broad belt including the northern part of the deciduous forest zone and the central and southern parts of the boreal forest zone. Farther south, and in drier climates farther inland, they become sporadic and restricted to specialized habitats. To the north, peatlands controlled by mineral soil water (aapa mires) replace them as the dominant wetlands.Bogs are much less extensive in the Southern Hemisphere because there is little land in cold temperate latitudes. In these Southern Hemisphere peatlands, Sphagnum is much less important, and Epacridaceae and Restionaceae replace the Ericaceae and Cyperaceae of the Northern Hemisphere.For the source and more detailed information concerning this issue, click on the related links section indicated below.who cares


What would happen if the world turned up side down?

Constellations and the visible stars would invert (stars visible over the southern hemisphere would be visible over the nothern hemisphere and vice-versa), the sun would rise in the 'west' and set in the 'east' (inverse of its presently observed track), the seasons would flip (summer in North America would become winter, etc.)


As a ship sails a steady course the North Star sinks in the sky In what direction must the ship be sailing?

It is moving South. At sea you could measure the angle between the horizon and Polaris with a sextant. This angle is approximately equal to your Northern latitude. There are some mathematical corrections one can perform to get a more precise answer, but the further south you sail, the lower Polaris will become. Eventually, you will not be able to see it anymore. Polaris is not visible from the Southern Hemisphere and there is no South Star. The ship is in the Northern Hemisphere, moving South.


Why were the winds between 30 degrees and 0 degrees north and south of the equator named trade winds?

The trade winds are the prevailing pattern of easterly surface winds found in the tropics, within the lower portion of the Earth's atmosphere, in the lower section of the tropospherenear the Earth's equator. The trade winds blow predominantly from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere, strengthening during the winter and when the Arctic oscillation is in its warm phase. Historically, the trade winds have been used by captains of sailing ships to cross the world's oceans for centuries, and enabled European empire expansion into the Americas and trade routes to become established across the Atlantic and Pacific oceans.


How does the Coriolis effect relate with hurricanes?

As a consequence of the Coriolis effect large scale wind currents get deflected relative to a pressure gradient, to the right in the southern hemisphere and to the left in the northern hemisphere. As a result, large scale pressure systems rotate, such as hurricanes, which are strong low-pressure systems. This rotation actually allows storms to become better organized and intensify even further. At the equator, where the Coriolis effect is essentially nonexistent storms cannot organize in such a fashion, and so usually nothing more than disorganized bands of weak thunderstorms develop.

Related questions

During what season in the southern hemisphere does the so-called ozone hole become largest?

Winter, to early spring.


During which time period does the Southern Hemisphere have summer?

In some Southern Hemisphere countires, it's official that Spring arrives with September. That has the advantage that it puts winter's end at a time when the temperature is similar to what it was at winter's beginning (June. 1 in the Southern Hemisphere--December 1 in the Northern Hemisphere). But many have said that, in the Northern Hemisphere, April feels like the first Spring month. I agree. That corresponds to October in the Southern Hemisphere. By April, it's become warm and sunny, and there is sufficient sunlight to luxuriantly bring back the plant-life.


In between June 21 and September 21 days become shorter or longer?

The time period that you are referring to is called the summer solstice. This is the time when the earth's path around the sun has forced the Northern Hemisphere to start pointing directly at the sun. At that point, every part of the Northern Hemisphere sees the sun for more than 12 hours and every part of the Southern Hemisphere sees the sun for less than 12 hours.So the answer is: for the Northern Hemisphere, the days become longer, and for the Southern Hemisphere, the days become shorter.Hope this helps ~ CB


In between September 23 and December 22 do days become shorter or longer?

Days get `longer` between June 21st and December 21st for the southern Hemisphere, while they get shorter for those in the northern hemisphere. Between December 21st and June 21st, the days get longer for those in the northern hemisphere and shorter for those in the southern hemisphere.


Is the days shorter and nights get longer?

In the northern hemisphere, USA and UK included, during Spring the days become longer and the nights become shorter. Conversely, in the southern hemisphere, Australia, and South Africa included , during the same period the days become shorter and the nights become longer. Depending on which side of the Equator you are on , the seasons and daylight hours are reversed. During Autumn (Fall)(northern hemisphere), the whole process is reversed in both hemispheres.


When do cherry fruit become ripe?

The prime season for cherry ripening is in the middle of summer. In the northern hemisphere from July to August. In Australia, New Zealand and the other temperate countries in the southern hemisphere, they ripen around December.


What happens when clouds form moist winds during orographic lifting?

The moist clouds are formed and forced up to higher elevations, like mountains.CORRECT Hot spots on the Tropical Oceans cause a Rising Column of Hot, Moist, Air. The Column begins to rotate in a vertical spiral due to Rotation of the Earth. In the Northern Hemisphere the Rotation of the Column is Counter-clockwise, Opposite in the Southern Hemisphere. The Largest of these Rotating Air Masses become Hurricanes travelling Westward across the Tropical Oceans until they make Landfall.


Why do four seasons occur?

The cause of the seasons is the tilt of the Earth's axis of rotation (line from one pole to the other) with respect to the plane of its orbit around the Sun. During the course of the year, this changes the length of the day, and the angle of the Sun's rays, for all locations except those in the tropics near the equator.The seasons are not experienced the same way in every location, due to winds, currents, and local weather patterns. The seasons are reversed north or south of the equator : when it is summer in the Northern Hemisphere, it is winter in the Southern Hemisphere, and vice versa.Summer: the Sun's rays are more directly overhead, temperatures are warm, days are longerFall : the Sun's rays are less directly overhead, temperatures become cooler, days become shorterWinter: the Sun is farthest from directly overhead, temperatures are lowest, days are shortestSpring: the Sun becomes higher in the sky, temperatures become warmer, days become longer


How old must a horse be to be in the Kentucky Derby?

Race for "three year-olds". However, Thoroughbreds that are born in the Northern Hemisphere technically become a year older on January 1 each year and those born in the Southern Hemisphere turn one year older on August 1.


Will the blue whale become extinct?

Blue whale hunting was banned in 1966 by the International Whaling Commission. But, by 1970 330,000 blue whales had been caught & killed in the Antarctic, 33,000 in the rest of the Southern Hemisphere, 8,200 in the North Pacific, and 7,000 in the North Atlantic. The largest original population, in the Antarctic, had been reduced to 0.15% its original count. Now that they are protected and hunting is banned, I dont think they will become extinct.


What does the Southern Cross on the NZ flag mean?

it's not the southern cross, but the UK Flag because New Zealand was first colonised by the British. http://www.worldflags101.com/n/new-zealand-flag.aspx The Southern Cross on the New Zealand flag represents NZ's location in the South Pacific Ocean (the blue background).


Why can't a hurricane pass from the southern hemisphere to the northern hemisphere?

Example: Snow doesn't fall in the summer for the same reason.In Fall, the Northern Hemisphere is growing colder than the Southern Hemisphere. Hurricanes form north of the equator because they are the process of water vapor cooling to form rainclouds, as condensation turns gas into liquid.The hurricane requires energy in the form of heat and high pressure to fuel the storm and continue sucking more water from the ocean or bodies of water. The hot, heavy air around the tropical storm is sucked in by the cool, low pressure rainclouds.So the actual change from Summer to Fall in the Northern Hemisphere is what fuels the hurricane. Everything south of the Equator - which divides the world in half - is growing warmer and heavier from the heat of the sun.Hurricanes suck up all the warm, heavy water vapor left in the Northern Hemisphere that it can before the storm cools off and all the water turns into rain or ice, by equalizing the storm's temperature and pressure with the atmosphere.This is why a tropical storm can become a category 5 hurricane. It begins to gain momentum from water vapor in the ocean cooling rapidly as the seasons start to change. If it doesn't suck up enough hot air to cool it down before reaching land, the tropical storm won't become a hurricane.Q: Why can't a hurricane pass from the Southern Hemisphere to the Northern Hemisphere?A: The Southern Hemisphere is growing warmer than the Northern Hemisphere during hurricane season, so the water vapor in the Southern Hemisphere no longer has a chance to cool off, and form a low pressure rainstorm. The Equator acts like a high pressure blanket while the sun heats up the southern half of the earth and the north cools and condenses water vapor into rain.Keep in mind, all of what I just wrote is memory and logic from high school environmental science class. I might have made a mistake. This was fun to write though, it got me thinking after not being in school for 2 years!!