Question

difference surface maps and upper air maps

Answer 1

1. Surface maps have the dewpoint and temperature plotted in degrees Fahrenheit. Observations plotted on an upper air maps have the temperature and dewpoint depression plotted in units of Celsius.

2. On a surface maps, dewpoint is plotted while on an upper air maps the dewpoint depression is plotted. The dewpoint depression is the temperature difference between the temperature and the dewpoint.

3. The meaning of a filled in circle is cloudy on a surface maps but means the dewpoint depression is less than 6 on an upper air chart. On an upper air maps the circle will either be blank or shaded it.  

4.On an upper air map the circle will either be blank or shaded. On a surface map, the circle could be shaded none, 1/4,1/2,3/4 or completely shaded depending on how much cloud cover is present.

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