Index Catalog // ScholarsArchive@OSU

Studies of hydrothermal processes in Crater Lake, OR

Creator:: Collier, Robert W., Dymond, Jack, and McManus, James
Abstract:: As a result of the past three years of field studies and our interpretation of these and other data from the literature, we conclude that there are inputs of hydrothermal fluids into the bottom of Crater Lake. The dissolved materials associated with these thermally and chemically enriched fluids, coupled with...
Resource Type:: Technical Report

Studies of hydrothermal processes in Crater Lake : a report of field studies conducted in 1988 for the National Park Service

Creator:: Collier, Robert W., Dymond, Jack, Oregon State University. College of Oceanography, and Cooperative Park Studies Unit (Corvallis, Or.)
Resource Type:: Technical Report
Full Text:: Introduction Crater Lake sits atop Mt Mazama, a center of volcanism in the Oregon Cascades for more than

The horizontal distribution and vertical migrations of the limnetic zooplankton in Crater Lake, Oregon

Creator:: Hoffman, F. Owen
Abstract:: During the summers of 1967 and 1968 the horizontal distribution and did vertical migrations of zooplankton were studied within the unique environment of Crater Lake. Sampling of the horizontal distribution was done by towing plankton nets vertically in different locations. The vertical distribution was sampled by towing at different depths...
Resource Type:: Masters Thesis
Full Text:: DISTRIBUTION AND VERTICAL MIGRATIONS OF THE LIMNETIC ZOOPLANKTON IN CRATER LAKE, OREGON Abstract approved

The species composition, density, and distribution of the littoral zooplankton assemblage in Crater Lake, Oregon

Creator:: Warncke, William Madara
Abstract:: The species compositions and densities of the littoral and pelagic zooplankton assemblages in Crater Lake were compared. The littoral and pelagic zooplankton assemblages of most lakes are typically different due to different habitat conditions in the two zones. The littoral zone of Crater Lake lacks many of the habitat characteristics,...
Resource Type:: Masters Thesis
Full Text:: littoral zooplankton assemblage in Crater Lake, Oregon AN ABSTRACT OF THE THESIS OF William Madara

A new model for the formation of Crater Lake Caldera, Oregon

Creator:: Lidstrom, John Walter
Abstract:: During the Pleistocene, an andesitic volcano named Mount Mazama grew to a probable elevation of 3000 meters in south- central Oregon. Near the end of the Pleistocene, three diverse magma types appeared in the eruptive products associated with Mount Mazama: l)High-alumina basaltic andesite magma associated with an early plateau and...
Resource Type:: Dissertation

On the chemical and physical limnology of Crater Lake, Oregon

Creator:: McManus, James, 1963-
Resource Type:: Dissertation
Full Text:: PROPERTIES OF CRATER LAKE, 4 OREGON: A METHOD FOR THE DETERMINATION OF A CONDUCTIVITY AND TEMPERATURE

An investigation into the comparative utility of color infrared aerial photography and LANDSAT data for detailed surface cover type mapping within Crater Lake National Park, Oregon

Creator:: Walsh, Stephen Joseph, 1951-
Abstract:: The identification and mapping of surface cover types within Crater Lake National Park, Oregon, has been effectively completed through the utilization of LANDSAT digital data and NASA U-2 color infrared aerial photography. Classification of LANDSAT data for surface cover type identification and mapping was accomplished through use of the Interactive...
Resource Type:: Dissertation

An investigation into modeling snow cover elements at Crater Lake National Park and surrounding environs as an improved "ground truth" method for satellite snow observations

Creator:: Hamilton, William L.
Abstract:: Streamflow forecasts are essential to the optimal operation of hydroelectric and irrigation reservoirs in the Pacific Northwest. Satellite snow cover observations would aid in these streamflow forecasts by providing snow cover data at regular time intervals. Unfortunately, satellite capability to remotely sense mountain snow cover conditions is indeterminate due to...
Resource Type:: Dissertation
Full Text:: Crater Lake National Park and surrounding environs as an improved "ground truth" method for satellite

The ecology of lupines in Crater Lake National Park, Oregon

Creator:: Kerle, Elizabeth A.
Resource Type:: Masters Thesis
Full Text:: Pinus contorta community types in Crater Lake National Park, Oregon. Soils in all four communities

Vegetation and fire history of a Ponderosa pine-white fir forest in Crater Lake National Park

Creator:: McNeil, Robert Curlan
Resource Type:: Masters Thesis
Full Text:: vegetation of a 7. 5 km2 area in Crater Lake National Park, Oregon. It also gives the approximate dates and

The vegetation dynamics of Pinus contorta forest, Crater Lake National Park, Oregon

Creator:: Zeigler, Robert S.
Abstract:: This study describes the soils, vegetation and age structure of the Pinus contorta forests of Crater Lake National Park. Growth rates of P. contorta, and levels of infection and impact of dwarf mistletoe (Arceuthobium americanu1r) on growth of P. contorta individuals are compared among communities. Vegetation description is based on...
Resource Type:: Masters Thesis

Benthic macroinvertebrates and sediment characteristics of a coastal dune margin lake (Carter Lake, Douglas County, Oregon)

Creator:: Wones, Andrew G.
Abstract:: Carter Lake, a freshwater, coastal dune-margin lake, was sampled at the beginning and end of the summer of 1986 to determine the sediment characteristics and benthic macroinvertebrate abundance, biomass, variety, and diversity. The distributions of major benthic habitats were estimated by snorkeling in June and July, 1986. Water temperature and...
Resource Type:: Masters Thesis
Full Text:: was observed in Table 2a. Water temperature ( 0 C ) data from Carter Lake, Douglas County, Oregon

Dispersed winter recreation use patterns and visitor attitudes at Crater Lake - Diamond Lake, Oregon

Creator:: Thompson, Terry Jo
Abstract:: Winter recreation has increased rapidly in the Crater Lake - Diamond Lake area of Oregon in recent years. Park and forest managers are concerned about existing and potential impacts of the recreationists on the resources and other recreationists. The purpose of this study was to describe the nature and extent...
Resource Type:: Masters Thesis

Ecology of kokanee salmon and rainbow trout in Crater Lake, a deep ultraoligotrophic caldera lake (Oregon)

Creator:: Buktenica, Mark W.
Abstract:: Crater Lake, originally barren of fish, was stocked on an irregular basis from 1888 through 1941 with several species of salmonids. Two species occur in the lake today--kokanee salmon (Oncorhynchus nerka) and rainbow trout (Salmo gairdneri). This study was initiated in the summer of 1986 to evaluate the ecology of...
Resource Type:: Masters Thesis
Full Text:: Kokanee Salmon and Rainbow Trout in Crater Lake, a Deep Ultraoligotrophic Caldera Lake (Oregon

The effects of natural fire and recreational disturbance on montane forest ecosystem composition, structure and nitrogen dynamics, Crater Lake National Park, Oregon

Creator:: Wilson, John K. (John Kevin)
Abstract:: Disturbance, whether natural or of human origin, modifies to varying degrees many ecosystem attributes. Fire is a natural process in the montane forests of southern Oregon but for much of the 20th century fire was viewed as an apocalypse and thus fervently suppressed. Effective natural resource management requires an understanding...
Resource Type:: Dissertation
Full Text:: Ecosystem Composition, Structure and Nitrogen Dynamics, Crater Lake National Park, Oregon. Abstract

Job training for temporary summer rangers at Crater Lake National Park

Creator:: Hancock, Keith
Resource Type:: Undergraduate Thesis
Full Text:: Charles True, from Medford, Oregon. 1912--Crater Lake Lodge, the oldest structure now existing In

Effects of disturbance modes on mycorrhizal fungus communities at Crater Lake National Park

Creator:: Trappe, Matt
Abstract:: Crater Lake National Park presents an excellent opportunity for ecological research due to its relatively pristine landscape, the protection of its natural features, its infrastructure, and a Park administration supportive of scientific inquiry and restoration ecology. The research presented here examines the responses of fungi to various forms of perturbation....
Resource Type:: Dissertation
Full Text:: in southwestern Oregon and Crater Lake National Park produce sporocarps of gustatory and economic

Mount Mazama and Crater Lake : A Study of the Botanical and Human Responses to a Geologic Event

Creator:: Green, Robyn A.
Abstract:: Crater Lake, located in the southern Cascade mountains of Oregon, is the seventh deepest lake in the world. Unlike a majority of the deepest lakes in the world, found in continental rift valleys, Crater Lake is in the caldera of a volcano. For the young at heart and mind, those...
Resource Type:: Masters Thesis

The Ore bin ; Vol. 24 No. 10 (October 1962)

Creator:: Oregon. Dept. of Geology and Mineral Industries, Ramp, Len, Byrne, John Vincent, 1928-, Newton, Vernon C., Zoble, Rudolph, and Eack, Ernest Guenther
Resource Type:: Journal
Full Text:: today the rumble of boil- ing water can be heard at the pipe. 160 BATHYMETRY OF CRATER LAKE, OREGON

Infiltration and temperature characterization of a wastewater hyporheic discharge system

Creator:: Stewart, Ryan D.
Abstract:: The Clean Water Act imposes Total Maximum Daily Load (TMDL) limits on pollutant concentrations within wastewater effluent; in Oregon, thermal discharge is one of the pollutants subject to regulation. The City of Woodburn, Oregon, funded a series of pilot scale studies to investigate the utility of natural systems to reduce...
Resource Type:: Masters Thesis
Full Text:: : Infiltration and Temperature Characterization of a Wastewater Hyporheic Discharge System Abstract

Search Constraints

Search Results

Limit your search