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Urban Climate

Worksheet: Water Balance

Sheet 3: Test your knowledge

Clipart by Hemera, Big box of art

Water Balance

Can you answer the following questions on water balance?

1) Where is the humidity of air highest during night?

a) in the urban fringe
b) in the city centre
c) in the suburbs
d) in city parks

2) Where do the clouds concentrate on a summer day?

a) above the city centre
b) above the urban fringe
c) above the suburbs
d) above the lake

3) What causes the more intensive cloudiness above the city?

a) wind
b) rain
c) higher temperatures
d) lower temperatures

4) Where is precipitation highest?

a) in the city fringe
b) in the city centre
c) in local recreation areas
d) in the suburbs

5) When is precipitation highest in the city?

a) Spring
b) Winter
c) Autumn
d) Summer

6) Why has the snow in the city mostly a grey colour?

a) because of air pollution
b) because higher temperatures
c) because of higher humidity
d) because of the artificial surface

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Exercise:

Why is aridity in urban cores mostly higher than in the suburbs?
Is it because the buildings in town prevent the wind and thereby lead to a higher humidity?
Do you believe this is correct?

Test it yourself.
Go to a place in the urban center with high buildings and high density.
Test there how strong the wind is.

Then go to a place with greens or sports ground and test the wind.
Where is it more windy?
And where is it more humid?

Rain shower in the city. In cities heavy rain showers appear more often than in the country. (Picture by Hemera "Big box of art")

If it snows in winter during night all children are happy because they can start a snowball fight. They also can build snowmen or luge.

All this is very amusing for children, but they can only enjoy it, if there is enough snow.

What are your experiences you had with snow?

Are you happy if there is snow?

Name advantages and disadvantages of snowfall and snow cover in a city. Also think about traffic.

Snow in the city causes traffic problems. (source: Hemera, "Big box of art")

About this page:

- Author: - B. Wohlhöfer - University of Nürnberg - Germany
- scientific reviewing:
- educational reviewing: Dr. Schrettenbrunner / Dr. Schleicher / J. Heres
- last update: 09.09.03