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Show TABLE OF CONTENTS (CONTINUED) Section 2. 9. 1 2. 10 2. 11 3. 0 Ice Nucleus Counters Forecast Center Operations 29 33 33 SPECIAL SUPPORT STUDIES 40 3. 1 Numerical Models 40 3. 1. 3. 1. 3. 1. 3. 1. 40 41 43 43 3. 2 1 2 3 4 3. 3 Two Dimensional Mountain Airflow Condensation of Orographic Clouds Ice Phase Microphysics Model Examples Diffusion Tests 60 3. 2. 1 60 3. 2. 2 Ground Generator Releases Airborne Releases Climatological Data 3. 3. 1 3. 3. 2 3. 3. 3 3. 3. 4 4. 0 Optical Snow Rate Sensor Mesoclimatology of Seasonal Precipitation Precipitation Rates, Duration, and Attendant Synoptic Features Preferred Radar Echo Patterns and Mt. Harris Wind Anomalies Dependence of Precipitation Patterns on Synoptic Scale 700 mb Wind Direction RESULTS FROM FIELD MEASUREMENTS AND CASE STeDIES 4. 1 2 3 4 5 106 106 106 109 112 121 Ice Nucleus Counter Measurements 121 Discussion of Case Studies Conclusion 122 125 4. 1. 1 4. 1. 2 4. 4. 4. 4. 82 Snow Crystal Replica Collections Identification of Silver Iodid e Nuclei in Ice Crystals Silver Content of Snow Water Case Studies iii 127 133 134 145 |