A 1980 graduate of Georgia Tech in Civil Engineering, Dan began his career working for Boeing in Seattle
as a structural engineer on the 767 commercial aircraft. Having also worked for the Corps of Engineers
in Memphis Tennessee as a co-op student in hydraulics, he returned to the Corps in Los Angeles in 1984.
Including a one-year stint as a Regional Hydraulic Engineer with the Federal Highway Administration,
Dan now has over 25 years of experience in hydraulics and hydrology, and holds a professional engineering
license for the states of California and Oregon.
Dan's technical work with the Corps included flood analyses, such as 100-year floodplain determination
for the mighty Los Angeles River through the San Gabriel Valley urban area. He designed an innovative
flood protection barrier to protect Redlands CA from boulder-laden floods coming down out of the steep
San Bernardino Mountains. He analyzed the tide-influenced system of canals and pump stations draining the
floodprone coastal city of Huntington Beach.
Joining SCS in Portland in 1991, Dan has been the Columbia River Basin river flow forecaster, which
included snowpack analysis for over 180 river gages. His current activities include technical development
of the watershed model AGNPS. He added a major model enhancement, enabling snowpack accumulation and melt,
as well as the freeze-thaw process in soil. He serves on the HecRas support team, providing training and
project support. Dan has also been upgrading the climate data generation model GEM6.
As backpacking is one of Dan's favorite activities, he is pictured at right, in the Grand Canyon. The
camera is pointing north and the background smoke comes from forest fires in Southern Utah. The canyon
creates its own microclimate, and turnover of the within-canyon airmass due to diurnal flux of temperature
would push the smoke out by 10 am, only to return each evening.
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