These jet streams, found over both the Atlantic and Pacific Oceans, redistribute and influence weather patterns. They have created currents and trade winds which people have used as oceanic trade routes for centuries.
At the other extreme of the spectrum is the Polar Cell, located in the much cooler areas of the Earth. It is located in the most remote regions of the Earth, starting at around the 60th parallel. The Polar Cells are dominated by cold air caused by "Strong radiational cooling near the poles causes polar air to become cold and dense, which in turn causes it to sink," (Washington & Parkinson 2005:17). Cold air becomes extremely heavy and falls back towards the Earth's surface. The cell itself is extremely weak "although it remains detectable in times of averages of the air circulation," (Washington & Parkinson 2005:17). Like the Hadley Cell, the Polar Cell is driven by heating and cooling patterns. It helps balance the warmer air found in the tropical regions.
Unlike the direct Hadley and Polar Cells, the Ferrel Cell is an indirect cell which acts as a buffer between the two other cells. According to research, "The Ferrel Cell is an indirect meridional overturning circulation in mid-latitudes," (Vallis 2006:480). It is located in the mid-zones between the two extremes. The Ferrel Cells are present in both hemispheres within the middle and high latitudes. The flow moves towards the poles closer to the ground and it is and towards the equator in the middle; "cool air apparently rises in high latitudes, moves equatorwards and sinks in the subtropics," (Vallis 2006:480). Moving towards the equator it helps distribute colder air from the Polar Cells. It is also regulated by a friction which helps it keep moderate and controlled, creating a low pressure zone; it "is responsible for bringing mid-latitude eddy momentum flux convergence to the surface where it ay be balanced by friction," (Vallis 2006:481).
It creates low pressure zones when the warm air from the equator rises then moves towards the poles and becomes cooler and sinks. The Ferrel Cell is directly dependent on the functioning of the other...
Americans will face important decisions as consumers, voters, and global citizens. We need to understand that global warming has to be treated as a problem for all in order to properly solve it. If we continue to see it as a political issue as we sometimes do, it will never be fully resolved. Earth has to be made livable for everyone. It is not a place for first world or
Air traffic has continued to increase and it now constitutes a considerable proportion of the travelling public. The amount of long-hour flights has increased significantly. Based on the International Civil Aviation authority, air traffic can be anticipated to double amid till 2020. Airline travel, especially over longer distances, makes air travelers vulnerable to numerous facets that will impact their health and well-being. Particularly, the speed with which influenza spreads and
Climate Change: Severe Weather Quite often, when people comment upon the effects of global warming, they comment that winters can still be quite severe. The fact that blizzards are still frequent occurrences is used as 'proof' of the persistence of climate change. However, although the temperature of the earth is steadily increasing, the effects of climate change mean that more intense storms are likely in the future, including blizzards. This is
Global Warming: Is it Really a Threat? Global warming has become a modern issue of considerable significance. It has been the subject of many debates, articles and conferences. Despite the amount of debate around the issue, there is still no clear conclusion. Yet the possible consequences that are attributed to the threat are highly concerning. As one report describes: The most recent projections of state-of-the-art computer models of the Earth's climate (GCMs)
Global Warming: Fact Rather Than Fiction The focus of this paper is on global warming and its causes. In the introduction phase, we have given a brief overview of the problem alongside a brief look at the details of the problem itself. It is mentioned here that how much change has actually recorded in the previous decades and what the future might hold on for the planet if the trend keeps
Switching to solar heating would make a profound change, for heating and hot water can be heated freely and cleanly from the sun. By switching to energy efficient heating, air-conditioning and refrigeration, the greatest power users, consumers could have a huge impact on emissions. Changing to hybrid, fuel-efficient cars, public transportation and walking, when feasible, would have a profound impact on human-created carbon emissions. Penalizing and rewarding consumers and
Our semester plans gives you unlimited, unrestricted access to our entire library of resources —writing tools, guides, example essays, tutorials, class notes, and more.
Get Started Now