The GEV statistics of extreme precipitation from
different datasets can be compared using return
thresholds regardless of record length. Figure 8 shows
the 5-yr thresholds for 3-day precipitation accumulations
from 3B42RT and those from CPC over CONUS,
and APHRODITE over Asian monsoon and Middle
East regions. Over CONUS, the 3B42RT displays similar
patterns of geographical distributions of the required
rainfall thresholds, which resemble the
geographical distributions of the annual mean precipitation.
It shows larger thresholds in the eastern half
of CONUS east of 1028W, the Pacific Northwest, and
Sierra Nevada range, and lower thresholds in the desert
Southwest, Great Basin, valleys of northeast Arizona,
eastern Utah, central Wyoming, and the Willamette
Valley