WMOD00482

• Title: Microphysical Observations Over the Atlas Mountains in Morocco
• Date: 12/23/1988
• Weather Modification - Doc Type: Report

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MODEL

Fiq. 4: Scatter plot and correlation coefficient R
(elevation = 1427 m).

0.82 for AZILAL

motion (w), and the grid interval (10 km
in the grids is being used now)~ Finally,
the time duration factor could be tested
in case the upper air observations are
available more frequently. Presently,
this factor is set to 12 hours.

4. RESULTS AND SUMMARY

Preliminary results show that the
model is performing well as compared to
other results obtained in different
geographical and topographical
configuration (Rhea, 1977; Rhea, 1980).
Comparisons with some mid-level elevation
stations (800 to about 1800 meters) indi-
cate a good capability of the model to
predict monthly precipitation (see Fig. 4).
Correlations for these stations ranged
between 0.7 and 0.9 for a sample of 20
months. However, the model-generated
monthly volume precipitation was not well
correlated with measured stream flow. One
suspected reason for that would be the time
lag in the runoff of the precipitation.

ACKNOWLEDGMENTS

This research was supported by the
USAID (Project 608-0190) and the Government
of Morocco. The authors thank Joie Robinson
for typing the paper.

REFERENCES

Baddour. D.. and R. Rasmussen. 1988: Microphysical
observations over the Atlas Mountains in Morocco. PTE~rints.
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