Moire patterns have been identified by printers as
undesirable screen patterns caused by incorrect angling of
overprinted halftones. These patterns are being examined by
cartographers as a possible alternative to traditional methods
of producing patterned areas on maps. Map design guidelines
are needed before the use of moires can become...
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 main objective of the study was to identify potential groundwater problem areas in Western Marion County using a geographic information system (GIS) and the Oregon Water Resources Department's (OWRD's) well log database (see figure 1). Potential groundwater problem areas were identified based on their mean static water level. According...
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...
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,...
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...
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...
Based in part on previous work by this researcher, variables assumed to play a minor part in the process/ response system examined by the OSU Alsea Bay Hazard Study Team (1985-87)--river input and subsequent variations in hydrology--were more completely analyzed for their range of effects on the stability of Alsea...
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...
Data on ocean wave height and energy have been gathered via microseismometer at
Hatfield Marine Science Center in Newport, Oregon since 1971. Data on wave characteristics at
Newport for the winter seasons (November through March) from 1982 to 1990 were analyzed to
ascertain any relationships with winter storm events. Newport...