The Climbing Intensity Score (CIS) is a measure of climbing for a committed climber. It was used for a survey of members of the Climbers' Club of Great Britain.
Parameters:
(1) mean number of climbing days per year over a decade
(2) average grade of climbing over the decade
Decades
11 to 20
21 to 30
31 to 40
41 to 50
51 to 60
61 to 70
71 to 80
81 to 90
91 to 100
Climbing Grade
Points
none
0
M (moderate)
3
D (difficult)
4
VD (very difficult)
5
HVD (hard very difficult)
6
S (severe)
7
HS (hard severe)
8
VS (very severe)
9
HVS (hard very severe)
10
E1 (extreme 1)
11
E2
12
E3
13
E4
14
E5
15
E6
16
E7
17
E8
18
E9
19
score for a decade =
= (average number of climbing days per year for decade) * (average grade of climbing for decade)
climbing intensity score =
= SUM(score for decade over lifetime)
Interpretation:
• minimum score: 0
• maximum score per decade: 6,935 (usually less than 1,000)
• maximum CIS (lifetime): 62,415 (usually less than 5,000)
Limitations:
• There could be a wide variation in the number of days climbed per year.
• There could be a wide variation in the climbing grade over a year or decade.
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