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Table 2: Climate Scenario Data
Climate Section of the Foundation Document: Figures
Intermodel Comparison of Precipitation |
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Updated
12 October, 2003
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US
National Assessment of |
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Figure 7: Comparison of
the annual average changes in (a) global average precipitation (inches per
month), and (b) average precipitation over the US from the Canadian Model
Scenario (black) and Hadley Model Scenario (red) simulations used in the
National Assessment and from the simulations of other groups (same as for
Figure 6). The baseline period is assumed to be 1961-90. Although decadal
means have been applied to suppress year-to-year fluctuations, the greater
variability of precipitation than temperature still reveals significant
variations due to natural factors; the magnitude, although not the timing,
of the remaining fluctuations may be considered plausible. The anomalies
are with respect to the year 2000, calculating the values from a 2nd order
polynomial fit.
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