Characterizing the distribution of precipitation at regional
scales is a requirement for the development of regional scale,
spatially distributed hydrologic water balance models. This
study performs a preliminary assessment of the utility and
limitations of historical hydro-meteorological data for
providing spatially distributed precipitation estimates over
large areas. The historical data...
When precipitation falls on frozen soil, serious soil loss can
occur. In order to assign realistic probabilities to the occurrence of
this condition for use in predicting erosion rates over long time
periods, a technique for combining characteristics of precipitation and
air temperature records is applied to hourly wet season...
The occurrence of frozen soil has a major effect on runoff and soil loss
in the Pacific Northwest. Hence, information regarding the probabilities of
occurrence of periods during which the soil may be frozen is necessary in order
to adequately forecast long-term erosion rates for this region. In order to...
Periods of precipitation with certain combinations of characteristics
(e.g., high intensity rainfall on saturated soil) can lead to appreciable
soil loss in the Pacific Northwest. In order to assign realistic probabilities
to the occurrence of these periods for use in predicting long-term
erosion rates, a soil erosion-specific definition of a...
In November of 2006 an intense rainstorm of tropical origin, known colloquially as the "Pineapple Express," inundated the Pacific Northwest region of the United States, initiating numerous periglacial debris flows on several of the
stratovolcanoes in the Cascade Range of Oregon and Washington. These debris flows rapidly aggrade channels, deposit...