WMOD00485

• Title: Microphysical Effects of Wintertime Cloud Seeding with Silver Iodide Over the Rocky Mountains - Part II
• Date: 10/10/1988
• Weather Modification - Doc Type: Report

1156

JOURNAL OF APPLIED METEOROLOGY

VOLUME 27

Bangtail Ridge, abundant SLW up to 0.35 g m-3 was
recorded.
Liquid water in the 0.05-0.10 g m -3 range was again
encountered above the west slope of the Main Ridge,
and continued during the descent until passage through

cloud base at 2.8 km about 9 km west of the seeding
site. Clearly, SL W was widespread during this mission.
The mean SL W contents and IPC observed during
the pairs of passes made at 3.0 and 2.85 km altitude
are shown in Fig. 2, along with those of the first six

a ,~1 ,-.J..,.. , 't -...J o25[ ,~-,~ . ~ , ,~
!E
(/J~oo r" ,
~~ ,
11)1:11 ~~...... ,"'1 '- , 7't :-<t ,
I I , , , 501 North
50 I I I South I
North South
N 5 r. : N 5 ,
r. a ~;'~~~~2~ mat z b ~i~"~~345 mst
~ 40 2 PASSES AT 3.0 Kill ~ 40 2 PASSES AT 2.85 KM
5 l!: J
I- ill
ill 0
~ 3 1530
0 0
0 w
-'
0
;:
:20
w Ii
~ z
z ..
;:l ~ 10
'"
0 0
15 10 0 10 15 15 10 0 10 15
DISTANCE IN KM DISTANCE IN KM
~(~ , , , I , ,~I 1 , , , ~ ~(1 ,', , , , I , , rn ~
50 50
North South North South
.... S5
" C ~:~"~~~5 mst r. d ~:"~~504 ~t
Z 40 6 PASSES AT 2.7 KM 1540 PASSES 7 I: 8 AT 2.7 KM
2 S
~ I-
Z ill
~30 0
z
0
0 0
0 w
w iI
-'
0 l;:20
;:
a: ~
~ w
Ii ~
z : 1
;:l '"
'"
15 10 0 10 15 15 10 0 10 15
DISTANCE IN KM DISTANCE IN Kill

~l]
.00 ~
50

+

~"""T ~ "<r; ~ '--.,

North

South

~40

e ~:'~~';516: mal
FINAL PASS AT 2.7 Kill

~
:
1530
!
o
~20
I-
a:
~
w
~ 1

15

10

o
DISTANCE IN Kill

10

15

fiG. 2. North-south mean distributions ofIPC and SL W content, with the origin 17 km east of the seeding site, for indicated numbers
of passes and altitudes on 15 Jan 1985. The north (N) and south (S) edges of the AgI plume are shown by vertical lines at the top of each
IPC plot.