Tuesday, 11 January 2000: 3:00 PM
ms.Projections of statistical aspects of
weather and climate extremes can be derived from
climate models representing possible future climate states. Some of
these model results have already been seen in observations,
including a greater number of
extreme warm days and extreme heat stress events
with a fewer number of
extreme cold days associated with a warmer mean climate, a decrease in
diurnal temperature range associated with higher night-time temperatures,
and increased precipitation intensity. Other model projections include
northern midcontinent summer drying,
decreasing daily variability of temperature in winter, and
increasing variability of northern midlatitude summer temperatures.
Though models are becoming
increasingly sophisticated, they still are not consistent with respect to
possible future changes in
tropical cyclones, El Nino effects, and extratropical stor
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