The main purpose of this project is to describe the hydrologic characteristics, with and without
regulation by dams, of the Coast and Middle Forks of the Willamette River, including the
floodplain, from the confluence to approximately eight miles upstream. The research is intended
to assess the future potential of the...
Since their discovery in 1977, hydrothermal vent communities have offered scientists
a unique glimpse into a world that is supported primarily by chemically derived
energy rather than direct energy from the sun. Furthermore, studies of hydrothermal
vent ecosystems have introduced scientists to amazing animals that have successfully
adapted to living...
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...
Salmon management philosophies of the five salmon jurisdictions of the North Pacific (Japan, Russia, Canada, Alaska and the American Northwest) are examined in a historical and geographic context. The first objective is to provide a synthesis of salmon management experience across the North Pacific, to serve as a context for...
Bankfull discharge is an important indicator of streamfiow and affects
physical instream habitat. Geographic Information Systems (G IS), hydrologic
modeling, and statistical analysis were utilized to assess the relationship of
bankfull discharge recurrence intervals and land use / land cover watershed
wide and for stream adjacent buffers and bands of...
Field data collection techniques in combination with remote
sensing techniques were used to interpret and map the complex flow pattern of
the numerous glaciers comprising the Juneau lcefield, spanning the Alaska-
Canada boundary range. The extensive nature of the icefield mandated the use
of a variety of methods for surveying...
Geographical data and information are virtually unlimited in their quantity and are oftentimes scattered throughout a multitude of locations and stored in various formats on a wide variety of platforms. The Oregon Coast Geospatial Clearinghouse (OCGC) is a web-based central repository for metadata (data about data) corresponding to collected data...
Geographical data and information are virtually unlimited in their
quantity and are oftentimes scattered throughout a multitude of locations and stored
in various formats on a wide variety of platforms. The Oregon Coast Geospatial
Clearinghouse (OCGC) is a web-based central repository for metadata (data about
data) corresponding to collected data...
This study traces the development history of the city of Corvallis, Oregon. Historic
reconstruction methods and GIS analysis are used to define and describe spatial aspects of the
city's expansion through time.
Pre-settlement and early settlement landscape conditions are considered. The city's
history is divided into three time periods, 1845-1900,...
This study investigates riparian cover change between 1939 and 1996 utilizing aerial
photography, bank conditions and stream gauge data. Three sites under 1.0 km2, along a 10-
km reach north of Harrisburg, Oregon, were evaluated. The cover classification scheme
included 18 classes composed of 3 canopy densities and 8 structural...