WMOD00415

• Title: Winter Cloud Seeding Potential on the Mogollon Rim - Final Report
• Date: 1/1/1989
• Weather Modification - Doc Type: Report

CONTENTS - Continued

Page

10.

Conclusions and recommendations

145

Bibliography. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 147

Appendix - Discussion of the 1987 and 1988 storms by episode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 153

TABLES

Table

3-1 Research aircraft instrumentation ................................................ 22
4-1 The hourly cloud system classifications for the 1987 field season at Happy Jack .............. 32
4-2 The hourly cloud system classifications for the 1988 field season at Hannagan Meadow. . . . . . . . . 33
4-3 The tops of the lowest deck of radar echoes during hours with either measurable CLW

or precipitation ............................................................ 46

5-1 Number of hours with mean CLW amounts of at least 0.01 min for each season and

storm class ............................................................... 52

5-2 Summary of CLW flux estimates ranked by total flux per storm episode. . . . . . . . . . . . . . . . . . . . 62
5-3 Distribution of all hourly CLW flux amounts by field season ...................:........ 63
5-4 Precipitation rates corresponding to indicated CL W fluxes if uniformly deposited
over three different distances .................................................. 63
5-5 CLW flux per meter crosswind by storm classification ................................. 64
5-6 Window parameters for the calculation of the SLIP index .............................. 72
5-7 Effectiveness of the SLIP index for low, moderate, and high ranges of probable CL W

existence ~........................................................ . . . . . . . . 72

6-1 Hannagan Meadow ice particle observations ........................................ 84
6-2 Precipitation characteristics from the early 1987 network .......................... . . . . . 86
6-3 Time periods with heavy precipitation at one or more gauges during the 1987 field season ...... 87
6-4 Summary of hourly precipitation by storm class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
9-1 The locations, dates, times, and surface conditions for the SF6 tracer experiments. . . . . . . . . . .. 122

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