WMOD00405

• Title: Thermodynamic Features Affecting Convective Cloud Growth and Dynamic Seeding: A Comparitive Summary of HIPLEX Soundings 1975-1977
• Date: 7/1/1981
• Weather Modification - Doc Type: Report

Table 3. - Model vs. alrcraft observatlons
of cloud-base height and cloud-top height,
Miles City, Summer 1977
cases ample size 13 Afternoon soundlng cases - ,ample Slze 13
rms Carre 1 at lOn Mean values rms Correlation
Model Bias error coefficient Model Aircraft Bias er ror coeffi c i ent
6 r II r
-
Cloud-base height (km) Cloud-base height (km)
Maximum Maximum
observed 3.13 3.21 -0.08 0.48 0.78 observed 3.46 3.21 0.25 0.67 0.79
Minimum Minimum
observed 3.13 2.77 0.36 0.86 0.54 Observed 3.46 2.78 0.68 1.03 0.68
Cloud-top height (km) Cloud-top height (km)
Model radius (km) Model radius (km)
0.5 6.41 8.65 -2.24 3.48 0.14 0.5 5.45 8.65 -3.20 3.62 0.53
1.0 8.03 8.65 -0.62 2.89 0.20 1.0 6.48 8.65 -2.17 2.70 0.66
1.5 8.80 8.65 0.15 2.86 0.22 1.5 7.05 8.65 -1.60 2.29 0.71
2.0 9.44 8.65 0.79 2.86 0.25 2.0 8.00 8.65 -0.65 1.68 0.84
3.0 10.62 8.65 1.97 3.42 0.24 3.0 8.88 8.65 0.23 1.82 0.86
10.0 12.24 8.65 3.59 4.43 0.26 10.0 10.13 8.65 1.48 2.93 0.73
- -
Best top fit of model for all radii. morning soundings. n 13, Best top fit of model for all afternoon rad n 13, 6= 0.78,
C; = 0.89, u = 1.27. SE = 0.35. u = 1.05, SE = 0.29 km.
( ll) = mean error (b i as)
(u) = standard deviation
(SE) = standard error of the mean

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