Environmental Engineering Reference
In-Depth Information
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
Maximum value
Standard deviation
Mean value
Standard deviation
Minimum value
Maximum value
Standard deviation
Mean value
Standard deviation
Minimum value
2
2
Hamburg
Hamburg
Kahler Asten
Kahler Asten
Feldberg
Feldberg
Zugspitze
Zugspitze
1
1
0
0
1961
1961
1966
1966
1971
1971
1976
1976
1981
1981
1986
1986
1991
1991
1996
1996
Time in years
Time in years
Fig. 2.32
Annual mean wind velocities at different sites in Germany between 1961 and
1998 (data see /2-12/)
10
10
7
7
Kahler Asten
Kahler Asten
Hamburg
Hamburg
9
9
6
6
8
8
5
5
7
7
6
6
4
4
5
5
3
3
4
4
3
3
2
2
Maximum value
Standard deviation
Mean value
Standard deviation
Minimum value
Maximum value
Standard deviation
Mean value
Standard deviation
Minimum value
Maximum value
Standard deviation
Mean value
Standard deviation
Minimum value
Maximum value
Standard deviation
Mean value
Standard deviation
Minimum value
2
2
1
1
1
1
0
0
0
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
Time in months
Time in months
Time in months
Time in months
16
16
16
14
14
14
Zugspitze
Zugspitze
Zugspitze
Feldberg
Feldberg
Feldberg
14
14
14
12
12
12
Maximum value
Standard deviation
Mean value
Standard deviation
Minimum value
Maximum value
Standard deviation
Mean value
Standard deviation
Minimum value
Maximum value
Standard deviation
Mean value
Standard deviation
Minimum value
Maximum value
Standard deviation
Mean value
Standard deviation
Minimum value
Maximum value
Standard deviation
Mean value
Standard deviation
Minimum value
Maximum value
Standard deviation
Mean value
Standard deviation
Minimum value
12
12
12
10
10
10
10
10
10
8
8
8
8
8
8
6
6
6
6
6
6
4
4
4
4
4
4
2
2
2
2
2
2
0
0
0
0
0
0
1
1
1
2
2
2
3
3
3
4
4
4
5
5
5
6
6
6
7
7
7
8
8
8
9
9
9
10
10
10
11
11
11
12
12
12
1
1
1
2
2
2
3
3
3
4
4
4
5
5
5
6
6
6
7
7
7
8
8
8
9
9
9
10
10
10
11
11
11
12
12
12
Fig. 2.33
Mean values of monthly mean wind velocities (captured between 1961 and 1998;
data see /2-12/)
Time in months
Time in months
Time in months
Time in months
Time in months
Time in months
Often, a site is characterised by a typical mean diurnal course over the year.
This daily cycle can sometimes be clearly observed on a particular day. However,
most of the time it can only be observed to a very limited extent, or not at all.
With the exception of very few sites worldwide, the mean diurnal course is in line
with the so-called low-land or ground type (e.g. Norderney/Germany, Fig. 2.34).
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