Social and Behavioral Sciences Commons^™

Satellite Remote Sensing For Measuring The Urban Forest Of Portland, Oregon, A. Paul Newman

Dissertations and Theses

Digital pattern recognition methods were used to produce two maps of urban vegetation from LANDSAT Thematic Mapper for the City of Portland, Oregon. The image was acquired on July 7, 1991 and the spectral bands used were 2, 4, 5 and a ratio of 3 and 4. The two maps represent vegetation amount and vegetation type.

Due to the extreme heterogeneous nature of the urban environment, these maps were developed using techniques to reduce and manage the amount of spectral variation. This included purging non-vegetated cells from the multispectral image, and then stratifying the image into "spectral subdivisions" using tools …

Gis Applications To Glaciology: Construction Of The Mount Rainier Glacier Database, Jeremy Laurence Mennis

Dissertations and Theses

This thesis explores the application of Geographic Information Systems (GIS) to glaciology through the construction of a GIS database of glaciers on Mount Rainier, Washington (the Database). The volume and areal extent of these glaciers, and the temporal change to each, are calculated as a demonstration of GIS analytical capabilities. Data for Carbon, Cowlitz, Emmons, Nisqually, Tahoma, and Winthrop glaciers for the years 1913 and 1971 are derived from historic topographic maps. The Database includes two and three-dimensional representations of glacier geometry, such as glacier extent and topography, as well as surface features, such as debris cover. A test of …

The Summit Vegetation Of Saddle Mountain, Oregon Coast Range, Charles Thomas Carlson

Dissertations and Theses

Saddle Mountain (1000 m) is the highest peak in the Northern Oregon Coast Range. Meadows are found to occur at and near the summit of the mountain which contain abundant wildflowers. Although the majority of these meadow species have been collected and identified in the past no formal study has been done to classify them into communities. The purpose of this study is to examine the character and origin of the plant communities located at or near the summit of Saddle Mountain. Data were collected on 4 study sites during the Summer of 1996 and analysis of the data lead …

Managing Oregon’S Aquatic Resources : A Dynamic Segmentation Application, Keith Andrew Hupperts

Dissertations and Theses

Many of Oregon's salmon, the cultural icon of the region, are imperil. Salmon runs ranging from the Snake River to the Oregon coast, from chinook to coho to steelhead to cut-throat are being protected or candidates for protection under the federal Endangered Species Act of 1973. As Oregon's salmon decline natural resource agencies, such as Oregon Department of Fish and Wildlife (ODFW), are seeing substantial funding cutbacks. In order to compensate for lost personnel and rising work-loads, ODFW is increasingly turning to new technologies, such as Geographic Information Systems (GIS). This thesis describes the creation of a dynamic segmentation GIS …