WMOD00404

• Title: Thailand Applied Atmospheric Research Program - Final Report - Volume II
• Date: 3/1/1994
• Weather Modification - Doc Type: Report

Table

D.5.1
D.5.2

D.5.3

D.5A

D.5.5

E.3.1
E.3.2
E.3.3

F.3.1

Figure

BJ.l
BJ.2

RILl

RII.2

B.IL3

B.llA

B.II.5

BJL6

B.ll.7

B.IL8

BJL9

CONTENTS - CONTINUED

APPENDIX TABLES - CONTINUED

Pat~e

Rank orders of the four hygroscopic chemicals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " 140
Comparison of natural cloud characteristics for the cloud with and without

water loading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 143

Relative effects of seeding with 50-micrometer-radius calcium chloride particles
at cloud base and near cloud top as a function of seeding concentration . . . . . . . . . . .. 146
Results of seeding warm clouds produced by Chiang Mai soundings given in

table D.3.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1fi1

Results of seeding cold clouds produced by Chiang Mai soundings given in

table D.3.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1fi1

Target area names and relationships . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. HiO
Rainfall characteristics of the control, target, and downwind areas ............... Hi2
Frequency of simultaneous occurrence of rain events and correlation coefficients
between relevant targets ............................................... H;5
Reservoir and power data for the Bhumibol and Sirikit reservoir systems .......... 176

APPENDIX FIGURES

Map of the project area .............................................. Ei8
Diagrammatic illustration of the dynamic seeding conceptual model for
warm based supercooled cumuli, revised as of July 1992 ..................... (i1
Plot of mean SLWC and updraft relative to the point in the cloud where the
SLWC reached the highest pass value for all cloud penetrations on days with

S units in 1993 .................................................... 80
Plot of mean SLWC and updraft relative to the point in the cloud where the
SL WC reached the highest pass value for all cloud penetrations on days with

NS units in 1993 ................................................... 81

Plot of mean SLWC and updraft relative to the point in the cloud where the
updraft reached the highest pass value for all cloud penetrations on days with

S units in 1993 .................................................... 82
Plot of mean SLWC and updraft relative to the point in the cloud where the
updraft reached the highest pass value for all cloud penetrations on days with

NS units in 1993 ................................................... 83

Frequency plot of half-pass distances as determined by aircraft penetration
of clouds during the conduct of randomized cold cloud seeding experimentation

in 1993 .......................................................... 84

Frequency plot of half-pass distances as determined by aircraft penetration
of clouds during the conduct of randomized cold cloud seeding experimentation
in 1993 on days with experimental units receiving AgI seeding ................ 85
Frequency plot of cloud-pass distances as determined by aircraft penetration of
cloud during the conduct of randomized cold cloud seeding experimentation in 1993
on days with experimental units receiving simulated AgI treatment. . . . . . . . . . . .. 86
The indicated seeding effects on cell rain volume and maximum echo top height
in Texas and Thailand as a function of cloud-base temperature ................ 91
Semi-log plots of mean S and mean NS cell rain volumes within l-kilometer

height intervals ..................................................... 92

x