Mean annual runoff to precipitation (R/P) ratios were generated for 966 watersheds within the contiguous United States. The watersheds were plotted using Arc View GIS and used as part of an overlay analysis with Level 1 U.S. ecoregions. The ratios were statistically evaluated to determine anomalous R/P conditions within the...
El Niflo and La Nifia are oceanographic and atmospheric phenomena that have been
catalogued for well over a centuly. In El Nifio years, Peru's otherwise thy west coast is
subjected to torrential rainfall. Higher ocean temperatures off the coast are deemed the
culprit. Attempts to quantify this began in the...
Along with the increased attention in the past two decades on the values of wetlands and the documentation of great losses of wetland acreage has been a growing need for a comprehensive assessment method for analyzing the functions of a wetland. Detailed site-specific study has been the traditional method for...
The purpose of this paper is to analyze the characters of
winter wave climates of the Washington and Oregon coasts from 1980-
81 through 1989-90 and to compare these spatially and temporally
with the occurrence of storm events. Of particular interest is the
analysis of wave climates and weather events...
Research Questions:
1) What are the characteristics of storm location and
frequency that distinguish interannual forcing events, (ENSO
periods) for the northwest Pacific Coast?
2) Are there differences in the spatial and temporal
characteristics of storm events, (location and frequency),
between interannual forcing periods and annual average
periods?
3) Are...
Sequential aerial photography was used to identify effects of hiking trails
on the spatial distribution of subalpine fir (Abies lasiocarpa) habitat at alpine treeline.
Vegetation change over a 46 year period was compared along trails relative to areas
without trails, at five study sites in the McDonald Creek drainage of...
Streamflow variability can provide valuable information for nonpoint source
pollution monitoring program planning. The research papers presented in this thesis
examine selected properties of streamflow variability in Oregon to advance its application
in regional planning of water quality monitoring programs. The products of this research
depict Oregon streams by their...
The needs and markets for aerial photography have grown
steadily with the increasing demands for improved resource
management (Kodak, 1985, 2 & Simonett, 1983, 1). Aerial
photography within the Willamette Valley could provide researchers
and professionals with a broad range of data in disciplines such as
agriculture, forestry, geology, and...
Humboldt County has several areas which have naturally
high to extreme wildland fire hazards. Recent settlement within
these areas increases the likelihood of a destructive fire. This
report examines the extent and degree to which climate, slope and
vegetation influence the wildland fire hazard in Humboldt County,
as well as...
Oregon's Special Farm Use Assessment program is investigated
in this paper for its effectiveness in preserving farmland from urban
sprawl. Basic research for this study was conducted in Jefferson
County, a rural central Oregon county. Data from a similar study conducted
in Washington County, an urbanizing northern Willamette Valley
county,...