WMOD00579

• Title: An Exploratory Forecast Experiment to Predict Supercooled Liquid Water in the Sierra Nevada
• Date: 11/1/1988
• Weather Modification - Doc Type: Report

Table 2. The 7 x 7 contingency Table of Counts
(percentages) and summary measures for
verification of the predicted onset
times of liquid water (2 hour interval).

A. contingency Table, B5-B6 and 19B6-B7 seasons combined.
Observed
P!:'edicted
NOLe TO-2 T2-4 T4-6 T6-B TB-I0 TI0-12
I
I
Nor.e 118 6 1 0 4 0 3 1132 . _ ,
(40.4) (2.1) (.3) (0) (1.4) (0) (1.0); (It.:J.2j
':
.....
'10-2 "'.l 104 5 1 4 4 2 123
oJ
(1.0) (35.6) (1.7) (.3) (1.4) (1.4) (.7) (42.1)
T2-~ 1 2 0 0 0 0 0 3
( .3) (.7) (0) (0) (0) (O) (O) (l.0)
,
,
T~-6 3 0 1 "- I 3 0 2 10
(1.0) (O) ( .3) (.3) (l.0) (O) ( .7) (3.4)
"-
"
T6-8 5 2 0 0 2 2 1 12
(1.7) ( ...., (0) (0) ( .7) ( .7) ( .3) I (4.1)
. ( )
...... I
t
T8-:C 7 0 0 3 0 "- I 0 i 11
~
(2.~) (0) (0) (1. 0) (0) (3) (0) (3.B)
.....
"-
'I10-12 1 0 0 0 0 0 0 1
( . 3 ) (Q) (O) (0) (O) (O) (O) ( .3)

1~,.,
.)0

1, ~
..L,:

7
("'.lQ f"!) (... 4'
-,_.U ~. j

5 13
(1.7) (4.5)

7

(~7.3)

(2.4)

B
(2.7)

292
(100)

B. Su~nary Measures

1985-86 (170)

1986-87 (122)

Combined (292)

TSS
CPOD

.78
.72

.59
.65

.76
.70

16