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<br />.,~-' .
<br />
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<br />
<br />234
<br />208
<br />182-
<br />156
<br />
<br />8 130
<br />:>
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<br />~ 104
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<br />o
<br />78
<br />52
<br />26 f
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<br />
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<br />20
<br />
<br />I. .
<br />80 100 120 140 160 180
<br />MODEL
<br />
<br />Fiq. 4: Scatter plot and correlation coefficient R = 0.82 for AZILAL
<br />(elevation = 1427 m).
<br />
<br />motion (w), and the grid interval (10 km
<br />in the grids is being used now). Finally,
<br />the time duration factor could be tested
<br />in case the upper air observations are
<br />available more frequently. Presently,
<br />this factor is set to 12 hours.
<br />
<br />4. RESULTS AND SUMMARY
<br />
<br />Preliminary results show that the
<br />model is performing well as compared to
<br />other results obtained in different
<br />geographical and topographical
<br />configuration (Rhea, 1977; Rhea, 1980).
<br />Comparisons with some mid-level elevation
<br />stations (800 to about 1800 meters) indi-
<br />cate a good capability of the model to
<br />predict monthly precipitation (see Fig. 4).
<br />Correlations for these stations ranged
<br />between 0.7 and 0.9 for a sample of 20
<br />months. However, the model-generated
<br />monthly volume precipitation was not well
<br />correlated with measured stream flow. One
<br />suspected reason for that would be the time
<br />lag in the runoff of the precipitation.
<br />
<br />ACKNOWLEDGMENTS
<br />
<br />This research was supported by the
<br />USAID (Project 608-0190) and the Government
<br />of Morocco. The authors thank Joie Robinson
<br />for typing the paper.
<br />
<br />REFERENCES
<br />
<br />Baddour. D., and R. Rasmussen. 1988: Microphysical
<br />observations over the Atlas Mountains in Morocco, Preprints,
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<br />
<br />BeHIIIII)', J.C.. 1949: Obj1ective calculations of divergence.
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<br />
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<br />
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<br />
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<br />
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