The climatology method is another simple way of producing a forecast. This methodinvolves averaging weather statistics accumulated over many years to make the forecast. Forexample, if you were using the climatology method to predict the weather for New York City onJuly 4th, you would go through all the weather data that has been recorded for every July 4thand take an average. The climatology method only works well when the weather pattern issimilar to that expected for the chosen time of year. if the pattern is quite unusual for the giventime of year, the climatology method will often fail.

The analog method is a slightly more complicated method of producing a forecast. Itinvolves examining todays forecast scenario and remembering a day in the past when theweather scenario looked very similar ( an analog). The forecaster would predict that the weatherin this forecast will behave the same as it did in the past. The analog method is difficult to usebecause it is virtually impossible to find a predict analog. Various weather features rarely align themselves in the same locations they were in the previous time. Even small differences betweenthe current time andre analog can lead to very different results.

Which of the following is NOT mentioned in choosing a forecasting method__________?

A．Necessary amount of information.

B．Degree of difficulty involved in forecasting.

C．Practical knowledge of the forecaster.

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