Compiled and organized by Toshev
51
Australian Bureau of Meteorology (diagram)
The diagram below shows how the Australian Bureau of Meteorology collects up-to-
the-minute information on the weather in order to produce reliable forecasts.
The figure illustrates the process used by the Australian Bureau of Meteorology to
forecast the weather.
There are four stages in the process, beginning with the collection
of information about
the weather. This information is then analysed, prepared for presentation, and finally
broadcast to the public.
Looking at the first and second stages of the process, there are
three ways of collecting
weather data and three ways of analysing it. Firstly, incoming information can be
received by satellite and presented for analysis as a satellite photo. The same data can
also be passed to a radar station and presented on a radar screen or synoptic chart.
Secondly, incoming information may be collected directly by radar
and analysed on a
radar screen or synoptic chart. Finally, drifting buoys also receive data which can be
shown on a synoptic chart.
At the third stage of the process, the weather broadcast is prepared on computers.
Finally, it is delivered to
the public on television, on the radio, or as a recorded
telephone announcement.
(170 words, band 9)
www.ielts-simon.com
Compiled and organized by Toshev
52
Internet Users (line graph)
The graph shows the percentage of internet users in three countries from 1999 to 2009.
The line graph compares the percentage of people in three countries who used the
Internet between 1999 and 2009.
It is clear that the proportion of the population who used the
Internet increased in each
country over the period shown. Overall, a much larger percentage of Canadians and
Americans had access to the Internet in comparison with Mexicans, and Canada
experienced the fastest growth in Internet usage.
In 1999, the proportion of people using the Internet in the USA was about 20%. The
figures for Canada
and Mexico were lower, at about 10% and 5% respectively. In 2005,
Internet usage in both the USA and Canada rose to around 70% of the population, while
the figure for Mexico reached just over 25%.
By 2009, the percentage of Internet users was highest in Canada. Almost 100% of
Canadians used the Internet, compared to about 80% of Americans and only 40% of
Mexicans.
(151 words, band 9)
