Thirteen event-based natural precipitation cycles ranging from two
to five weeks were identified using natural breaks in the precipitation
data. Because of the small sample size (n = 13) and the limited usefulness
of statistical tests under these circumstances, analyses were limited
to calculation of Spearman's correlation coefficients between precipitation
and erosion under natural breaks in the precipitation cycle. Channels
and sidewalls indicated strong significant correlation with natural
precipitation cycles (Table 4) and three of the erosion parameters
(mean|change|, mean erosion, and mean deposition). Mean erosion
for the interfluves was correlated only with precipitation. Average and
maximum intensity in the natural precipitation cycles were not
correlated with any erosion measures. Given the small dataset, no regression
models were computed.