• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Why Does Temperature vary over the world?

Extracts from this document...


Why Does Temperature vary over the world There are two different sorts of factors that alter the answer to this question and these are long-term and short-term factors. Long-term factors Land and sea areas mostly influence atmospheric temperature. This is evident in the colder months when it is evident that the waters in the same area are always colder than the land the same areas. In the summer months this is totally reversed. Land and sea differ in their ability to absorb, transfer and radiate heat energy. The sea is more transparent than the land, and is capable of absorbing heat down to a depth of 10 metres. It can then transfer this heat to greater depths through movements of waves and currents. The sea also has a greater specific heat capacity than that of land. ...read more.


Warm currents carry water pole wards and raise the temperature of the maritime environments where they flow. Cold currents carry water towards the equator and so lower the temperatures of coastal areas. The mean difference of one place and the mean same monthly totals of places with the same latitude; this difference is known as Temperature anomaly. (The term 'temperature anomaly' is used specifically to describe temperature differences from a mean.) Anomalies result primarily from the uneven heating and cooling rates of land and sea, and are intensified by the horizontal transfer of energy by ocean currents and prevailing winds. Temperatures are adjusted to eliminate some of the effects of relief, thus emphasising the influence of prevailing winds, ocean currents and continentality. Prevailing winds also affect the temperature differences across the earth. The temperature of the wind is determined by its area of origin and by the characteristics of the surface of which it usually blows. ...read more.


This is because the molecules in air that receive and retain heat become fewer and more widely spaced as height increases. Short-Term Factors Seasonal changes at the spring and autumn equinoxes (21 March and 22 September) when the sun is directly over the equator, insulation is distributed equally between both hemispheres. At the end of the summer and winter solstices (21 June and 22 December) when, due to the earth's tilt, the sun is overhead at the tropics, the hemisphere is experiencing' summer' will receive maximum insulation. The length of day and night affects the variation of temperature because insulation is only received during daylight hours and reaches its peak at noon. There are no seasonal variations at the equator, where day and night are of equal length throughout the year. In extreme contrast, polar areas receive no insulation during part of the winter when there is continuous darkness, but may receive up to 24 hours of insulation during parts of summer when the sun never sinks below the horizon (the lands of the midnight sun). ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Energy, Respiration & the Environment section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Energy, Respiration & the Environment essays

  1. Investigating how prolonged exposure to its optimum temperature affects the respiration of yeast.

    150g Dried Yeast - Used for reacting with the glucose to produce Carbon Dioxide due to the yeast respiring. 150 grams is used so that it is in excess, so it won't run out. While this may contradict the risk assessment, any remaining yeast can be used in unrelated experiments so it is not wasted.

  2. Weed study. Dandelions - descrption and characteristics. Investigation to dandelion distribution.

    All the pappi together make up the blow ball. The wind takes the seeds and scatters them far and wide'. As I am implementing my experiment in September, the beginning of Autumn I feel that the wind would also affect the abundance of the dandelion.

  1. Effect of Tourism on Sea Turtles

    Beach furniture placed above the nesting ground forms a shadow over it and without any heat to maintain body temperature, the hatchlings often die. Vehicles that drive across the nesting ground compact the sand and make it very difficult for the baby turtles to surface after they break through the egg.

  2. Title: Temperature Equilibrium in Squash Balls.

    to conduct my experiment with Dunlop's balls, as they are the most commonly used for the average player, as well as the type professionals use in tournaments. There are four grades of balls commonly differentiated by a coloured spot or dot on the surface of the ball.

  1. Feeding The Third World

    Harmless or beneficial insects would be unaffected. Genetic Engineering could also be used to transfer genes form nitrogen fixing bacteria to crops so that they can fix their own nitrogen. Alternatively, in the future, the technique may provide resistance to diseases in plants and animals or develop plants and animals with more efficient metabolisms.

  2. The World Demand for Power

    This occurs in the process of oil extraction to actually extract more from existing resources. Once located and 'drilled' the reservoirs of oil would traditionally rely upon the pressure naturally created by the gas present under the ground to force it up.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work