Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Essay on drought in australia
Essay on drought in australia
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Essay on drought in australia
Australia is a very dry and thinly populated country. Because of the climate variation, Australia is so dry. So, first of all, is it because of the island? Is it because of the desert? Or is it because of the climate? Australia is the 6th largest country. Australia is a continent, as well as an island. As an island, the island has cities and places. The population in Australia is 24.8 million.
The northern territory of Australia has more tropical influenced by the climate, hot and humid in the summer and makes it quite warm and dry in winter while the southern territory is cooler and sometimes rainy winters. As water moves in a different direction and as well as the earth turns clockwise the sun hits different countries heats the place. The
…show more content…
Australia often has droughts, the most place that has droughts are South Australia. Australia undergoes the most variable of rainfall patterns that are there in the world. The most pertinent reason for this must be the location which is to the extreme south and in relation to the tropics and the equator. The variation in the rainfall is also due to the atmospheric pressure changes at sea level spread over the eastern and the western regions of the southern Pacific Ocean. This occurs due to the changes happening periodically in the seas’ surface temperature. The effects of warm and cool currents cause the changes in temperature in the land around. El Nino is the effect of warm currents and the effect of cool currents is La Nina. Walker situation is the movement of air in the atmosphere. During an El Nino, there is drought and less rainfall than in necessary causing the so-called ‘dryness’ in Australia.
When there is the El Nino effect, warm currents are experienced through the Pacific coasts of America and it is then that Australia has cold currents along its eastern coasts. Warm currents are good for rainfall due to the circulation of the particles of water in the atmosphere that results in the rain-bearing clouds and causes
…show more content…
The rising temperature has many variables of how it affects drought in Australia.
After years of research, the two main scenarios for Australia’s future droughts have been found out. The warmer temperature will make the ocean’s surface temperature increase which will, in turn, cause more evaporation and more rain in the seaboard regions. Secondly, the warm climate of the region will affect the El Nino and the La Nina climatic patterns.
Therefore, these are in general the factors that contribute to our living on a dry continent like Australia. It is only through lots of research and environmental conservation that farmers can be supported to grow a rich harvest every year. Constant research in these fields has been going on which can cause less drought in Australia.
Erosions happen due to the rain and the wind parts of the ground get washed or blown because of the nutrient-rich topsoil to cast away leaving the earth that cannot be used to do farming. And won’t have water to water it. Warmer air encourages more from the surface which helps to further dry climate. Because the sub-tropical high pressure is low and it is very dry the air, dropped most of its moisture in the form of rain over the
Mark Cane, scientist at Columbia University, discusses numerous places around the world that suffer famine and fires due to the effects of El Nino, even mentioning an occurrence here in the United States of an extreme snow storm caused by this event1. According to NOAA, El Nino occurs every 2-7 years and is detected by satellites, buoys, and sea level analysis . If scientists are aware of when El Nino is occurring then they are also aware of what changes in weather it is causing and can therefore connect these disasters to the event. It is
El Nino is both an atmospheric and oceanic phenomenon affecting weather patterns all around the world. It is complemented by La Nina in a cycle that occurs approximately every 4 years, varying as much as every two years to every six years (Wang 1999, 3331). La Nina has almost the opposite effect, however differs in its strength and duration randomly, as does El Nino (Fedorov 2000, 1998). The cycle is often paraphrased as ENSO, standing for El Nino-Southern Oscillation (Flugel 1997, 3230). It is called this because the El Nino phenomenon is especially strong in the Southern Hemisphere, and has greater effects in areas of the pacific near the equator. Although ENSO is prominent in certain areas, it alters weather patterns all around the world. The El Nino pattern can be quite random with and approximate range of 2 to 6 years per cycle, and is a loaded gun believed to be triggered by western winds (Fedorov 2000, 1997). Many scientists are now looking to the past for answers, so the El Nino cycle can be predicted for the years to come. New discoveries have recently been made on El Nino's history, and possible future.
Nowadays climate change is the biggest problem of the human being. It is already happening and represents one of the greatest environmental, social and economic threats facing the planet. Climate change, also known as global warming is the seasonal change for a long geological period of time in the world that is attributed directly or indirectly to human activity, altering the composition of the global atmosphere. Australia faces significant environmental and economic impacts from climate change across a number of sectors, including water security, agriculture, coastal communities, and infrastructure.
Australia is home to the great barrier reef which is the world's largest coral reef system, and home to the kangaroo. Australia is the driest continent in the world. The outback is the part of Australia that few live in because it’s a vast desert (“Australia”). The great dividing range is a long chain of mountains that runs along the Pacific Coast of Australia (“Australia”). Australia is the driest inhabitable country in the world (“Australia”). The great barrier reef of Australia is the largest in the world (“Australia”). Australia is already a dry country and if the temperature rises anymore due to climate change than Australia could suffer from more severe forest fires and be doomed.
In land area, Australia is the sixth largest nation after Russia, Canada, China, the United States of America and Brazil. It is one of the world’s most urbanized countries, with about 70 per cent of the population living in the 10 largest cities. Most of the population is concentrated along the eastern seaboard and the southeastern corner of the continent.
The currents at the surface of the ocean are split in to two categories, tidal currents and surface currents. Tidal currents occur around land masses and are influenced mainly by the gravitational pull of our sun and moon. They change rapidly but predictably and contribute to surface currents. Surface currents occur over different areas of earth’s ocean. Two main factors affecting the surface currents are wind and the Coriolis Effect. The Coriolis Effect explains how the rotation of the earth seems to cause a deflection of anything moving above the earth’s surface. It is this effect that causes winds and water in the northern hemisphere to appear to deflect to the right and in the southern hemisphere to deflect to the left. One of the major surface currents is the Gulf Stream. Water in around the Caribbean is warmed by the sun and then carried north and east along the coast North America. These sun warmed waters release their stored energy into the westerly winds and Northern Europe benefits by having a much milder winter than t...
Lack of rainfall is affecting the growth of trees, the amount of water received by the city of Perth, and the number of wildfires. The Jarrah karri region of Australia is drying out due to global warming. The rainfall has decreased around 15-20 percent since 1970 (Wardell-Johnson). Because of this, Bunbury says that the Jarrah karri region is a good example “for understanding what climate change impacts may mean in the future.” Many other areas in the world have a Mediterranean climate similar to the Jarrah forests and so by understanding what is happening to the Jarrah forests, researchers hope to change the future of other Mediterranean areas (Bunbury). One of the reasons that this part of Australia is suffering so much is that it has been in a “human-triggered climate
Climate change is a change in global or regional climate patterns. Most of the cold extremes of the world is experiencing warming at a more rapid pace than its warming extremes. In fact, the true cold season now exists in only the polar extremes of the African continent. Western Africa and Guinea are found to also face a reduction of precipitation while its neighboring regions, although also affected with reduced rainfall, are more prone to extreme rainfall, indicating the effect of the change global warming has brought (Aguilar, Aziz Barry, Brunet, Ekang, Fernandes, Massoukina, & Zhang, 2009).
Agriculture is the major farming activity. Agriculture's scale means not only that large area is directly affected, but that local and even regional climates can be affected. The draining of water from rivers and watersheds for irrigation leads to drier natural habitats. Those rivers that receive runoff from farmland are often poisoned by excessive nutrients and pesticides.
(2009). The 'Standard' of the 'Standard'. Drought - a fact sheet. Retrieved from: http://www.ifad.org/lrkm/factsheet/cc.pdf The Intergovernmental Panel on Climate Change, IPCC, (2007).
The image below clearly shows the fire prone areas during the different fire seasons. As seen the image, the fire season for most southern parts of Australia are during the spring and summer seasons. The north in
Normal weather patterns are when low atmospheric pressure is over northern Australia and Indonesia, and when high atmospheric pressure is over the Pacific Ocean. Winds move east to west over the Pacific. The east flows of the trade winds carries the warm surface waters to the west, and bring rainstorms to Indonesia and northern Australia. To the coast of Ecuador and Peru, warm surface water is pulled west, and the cold water beneath pulls up to replace it. This is called an upwelling.
a change in the water cycle. Some places may experience more rain. Warmer temperatures will
Climate change is currently affecting agriculture because it is causing prolonged droughts, violent flooding, sea level to rise, and also health related issues. Droughts and flooding utterly affect agriculture because it damages cultivation since the amount of water applied to crops and farming is fundamental to the...