In attempting to provide modern water and
sewerage services to the non-indigenous inhabitants of
Canadian Arctic communities, engineering modifications are
necessary owing to the presence of a continuous permafrost
zone and a severe climate. Modifications are constraints
on communities in that the costs of providing water and
sewerage services are...
Aerial videography in combination with GPS were used to monitor the
active surge of Alaska's Bering Glacier. The large aerial extent of the study area and the
unpredictable weather in coastal Alaska required innovative techniques to be used in
order to successfully monitor the surge environment. A portable aerial videographic...
This project focuses on the classification of
vegetation as a habitat for wild turkeys. The
vegetation classification discussed here is only one
part of a study looking at habitat requirements,
seasonal use patterns, and brood-rearing habits of
wild turkeys in Southern Oregon. The vegetation
classification was performed for an area...
The Geographic Information System (GIS) is an invaluable tool in manipulating and
interpreting world scale datasets. In recent years it has become the standard link between
water resource study and the ever-increasing numbers of high quality data sets. This
paper describes the use of Geographic Information Systems for gathering and...
Louisiana Army Ammunition Plant (LAAP), located near Shreveport, Louisiana, is a
government-owned contractor-operated plant. Its purpose is to manufacture, load and
assemble ammunition items. Area P has been used over the past 40 years to dump
explosive-laden wastewater into 16 unlined lagoons. In 1989 LAAP was placed on the
National...
Sections of the landscape in north central Oregon are
dominated by numerous soil mounds surrounded by stone rings. Mounds
vary in size and shape depending on slope and mound density. Internal
soil mass is free of stones to the bedrock level and is covered
by successive layers of volcanic ash....
The semantic differential technique was used to
quantify four interest groups' perceptions of twenty-six
Alaskan scenes. The scenes represented both panoramic views
and views of Mount McKinley from different sites in southcentral
Alaska. The perceptions were measured on six semantic
scales ("ugly-beautiful", "dislike-like", "unpleasantpleasant",
"unstimulating-stimulating", "level-mountainous",
and 'monotonous-varied"), and the...
The National Oceanic and Atmospheric Administration (NOAA) Coastal Change Analysis Program (C-CAP) is developing a nationally standardized database on landcover and habitat change in the coastal regions of the United States. The Willapa Bay eelgrass mapping project was granted to the Columbia River Estuary Study Task force (CREST) of Astoria,...
A log step develops when large woody debris extends across the active
channel, creating a change in the water surface elevation as the stream
spills over the log step. By forming a series of vertical falls, log
steps reduce the amount of potential energy available for conversion to
kinetic energy...
If wind power is to become a viable energy alternative, a rapid and reliable cost effective methodology must be established, whereby large areas can be surveyed for windy sites and those sites can be evaluated. Based primarily on locating wind deformed vegetation, this paper establishes the feasibility of using air...
A study conducted along the Lincoln County, Oregon coast
delineated the exact location of 153 landslides. The landslides were
found through the interpretation of aerial photographs. Each landslide
was verified in the field and its class (ancient, historic, recent),
type (slump, debris slide or flow, planar slide), and status (stable,...
Based on a pilot study completed near Heceta
Beach, Oregon, guidelines have been proposed for
the development of Oregon coastal sand areas.
The guidelines, in the form of performance standards
are designed with respect to the variability of
coastal sand areas. Landscape units and vegetation
associations were grouped to reflect...
The purpose of this paper is to define terrain analysis, as it relates to
military applications; to review the historical development of the central ideas
of terrain analysis, which has led to the development of three computer
programs that are designed to make terrain analysis an automated process
rather than...
The purpose of this study is to review the historical development of the central ideas of
military geography and terrain analysis and to examine these new research initiatives from that
perspective. Although the mobility and technological aspects of warfare have changed rapidly,
the essential geographic nature of warfare has remained...
Much of the rich forestlands of Oregon are subject to frequent mass wasting
events, resulting in severe environmental and economic damages. Extensive research has
shown that this landslide hazard is often exacerbated by many management activities.
Following a severe storm event which triggered thousands of landslides, the Oregon
Department of...
In recent years, the field of videography (the process of obtaining
video imagery) has taken on greater significance in remote sensing
applications. Today studies are being conducted to determine the potential
uses and capabilites of airborne video imagery. In the past, satellite or aerial
photography analysis and interpretation has been...
The Lawrence Memorial Grassland Preserve, located in
Wasco County, Oregon, exhibits a wide variety of soil mounds and
patterned ground features. The size, shape, and distribution of
several elements of this peculiar landscape were analyzed with a
detailed map, field observations, and statistical procedures.
Common soil mound shapes are circular,...
The ocean wave conditions at the mouth of the Columbia River have
long proven a hazard to ship navigation. Over 62 major shipwrecks
have occurred at, or in the vicinity of the river entrance. The wave
pattern is extremely complex, varying seasonally with prevailing winds
and river discharge, as well...
The purpose of this paper was to examine if the depth and degree of circularity of weathering pits affects the accumulation of sediment. Thirty pits were surveyed over two one-week periods on Dance Hall Rock. Weathering pits were measured to determine their maximum width, minimum width, vertical depth, and depth...