Because of declines in salmon populations in recent years, the health of salmon habitat, in particular, is the focus of many resource agencies. The objective of this study is to use GIS to predict the location of suitable habitat. With data from an extensive set of stream surveys, GIS was...
When the Spatial Data Transfer Standard is adopted as a Federal
Information Processing Standard, a Quality Report containing sections on lineage,
accuracy, logical consistency, and completeness will be required of agencies
producing digital cartographic data. This Quality Report diverges significantly from
the "U.S. National Map Accuracy Standards", in place for...
The purpose of this project, therefore, is to develop a GIS for a small
geographical area that is currently of high priority to the GLT. The development of this GIS will be documented in a sequential fashion, so that it may serve as a
framework for future endeavors. This paper...
The main theme of this research is the application of geographic techniques in a study involving environmental monitoring and analysis of the associations between landscape and in-stream characteristics in the Pacific Northwest. The geographic techniques used in this study include (1) geographic information systems (GIS) coupled with statistical analysis and...
Equal value gray scales are frequently employed by cartographers to choose gray tone area
symbols. Several researchers have tried to quantify perceived gray tone as a function of percent area inked or
reflectance but results have varied. The influence of pattern and texture on gray tone perception is considered
a...
This study provides some guidelines using and comparing the
RGB (red, green, blue), HSV (hue, saturation, value), and HLS (hue,
lightness, saturation) color specification systems to help designers
of computer produced layer tinted maps to select appropriate and
effective colors from the immense palette provided by modern color
monitors. Map...
This paper explores the use of hypermedia m geographical and environmental analysis, focusing on the use of sound. After providing essential definitions the paper presents a brief history of multimedia and hypertext (the combination of which lead to the term hypermedia) and object oriented programming. The concept of the hypermap...
Modern environmental monitoring and modeling requires a good global
grid system for survey sampling and accurate, spatially complete data
collection of relevant environmental phenomena. A prime requirement for the
global grid system is that the global sampling grids be regular and equal in area
and have minimal shape distortion. None...
Animated cartography is still a new field. It has been experimented with for years, but it
has not gained general usage except partially in use by the news media. Nevertheless, certain
subjects cry out for displaying the patterns of movement over time, such as historical patterns of
migration and settlement,...
High resolution land use/land cover information from
stream riparian areas is useful in understanding instream
biotic assemblages, and is often not available for
geographical research. A classification system was developed
which provides the types of information about the riparian
buffer thought to be important in providing good habitat for,
or...
National and international organizations are developing spatial databases to assess the
distribution of Biodiversity using geographic information systems (GIS). Currently, there
are no guidelines or standards for building GIS databases for biodiversity assessment
because database design is discipline-dependent and most biodiversity disciplines lack
spatial traditions. The present research analyzes the...
The World Wide Web is a promising new media for cartography. It allows the creation of interactive maps that can be accessed by the general public. There is a wide variety both in methods used and in the overall quality of current Web sites. This report reviews the state of...
Efficient management of natural resources requires the ability to utilize and integrate information. The challenge is to fully utilize this information base with its various degrees of accessibility, ever increasing volume and dispersed nature. The manager must be familiar with media types used to store, manage and communicate this information....
Models that assess the risk to biodiversity from landscape change can help
communities prioritize planning decisions. Accurate representation of the ecology and
life history traits of species is necessary. This study introduces the use of habitat
quality in a biodiversity risk model to determine the significance of habitat quality when...
Geographic Information Systems (GIS) is a burgeoning
field with its roots in geography. It is increasingly
being used by a large variety of disciplines, including
land use planning, as a decision support tool to help solve
complex spatial problems. At Oregon State University,
researchers have developed an analog model which...
With increased attention being focused on the remaining old-growth
forest resource in the Pacific Northwest a way to ecologically rate forest stands is
needed to assist the U.S. Forest Service in its management decisions. A Geographic
Information System (GIS) model was developed to rate old-growth stands in a 49,500
acre...
This dissertation details an experiment designed to identify gender differences in learning using three experimental treatments: animation, static graphics, and verbal instruction alone. Three learning presentations were used in testing of 332 university students. Statistical analysis was performed using ANOVA, binomial tests for differences of proportion, and descriptive statistics. Results...
The effect of scale is an important concern in mapping of biodiversity. Scale issues include the grid cell size used for analysis and the effect of the extent and internal boundaries. Because biodiversity analysis involves combinatorial processes, determining the proper scale is data dependent and cannot be predicted from the...
Slope-aspect is the compass direction of a slope at a particular location on a given
surface, and can provide a graphic tool for people who require an understanding of
the pattern of slope-aspect variation across a landscape. Slope-aspect maps can be
helpful for terrain analysis, watershed management, building site analysis,...
GIS technology has reached a point where it can be utilized by nonprofessionals in a desktop environment. This paper reviews the implementation of a pilot project for developing a localized-natural resource GIS. The resulting GIS was custom designed to answer questions posed by fish and wildlife biologists who need to...