EDI.)Y DIFFUSION C08FFICIENl'S
31 I
L ,
0.003
O.~X)60
0.014
0.03 I
0.064 0.1 54
0.343
L u
27.8
I4.X
7.8
4.8
3 .O
2. I
I .6
Some values of the coefficient c, are given in Table I. A comparison with
observations is given in Fig. 2 for the neutral case ( p = 0). The Leipzig wind
profile data (dotted curve), which is commonly considered to be neutral and
barotropic. fit the universal K, profile very well. This profile (broken line)
has been obtained by the PBL model using the mixing-length hypothesis
(5d).
FIG. 2. Universal vertical profiles of the eddy diNusion coefficient in the neutral case (rerults
of the PBL model and observations).
31 I
L ,
0.003
O.~X)60
0.014
0.03 I
0.064 0.1 54
0.343
L u
27.8
I4.X
7.8
4.8
3 .O
2. I
I .6
Some values of the coefficient c, are given in Table I. A comparison with
observations is given in Fig. 2 for the neutral case ( p = 0). The Leipzig wind
profile data (dotted curve), which is commonly considered to be neutral and
barotropic. fit the universal K, profile very well. This profile (broken line)
has been obtained by the PBL model using the mixing-length hypothesis
(5d).
FIG. 2. Universal vertical profiles of the eddy diNusion coefficient in the neutral case (rerults
of the PBL model and observations).