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• 21. [Image] Crater Lake limnological studies 1997 annual report

  	1982 - 2002; ill., maps; Title covers calendar years 1990-2002; Bibliographic description is based on 1990 annual report; CA 9000-8-0006 Subagreement 8; Includes bibliographic references; Issues lack volume ...
  	Citation × Citation Citation Abstract Copy Title: Crater Lake limnological studies 1997 annual report Author: Oregon State University; in collaboration with the National Park Service Year: 1997, 2009 1982 - 2002; ill., maps; Title covers calendar years 1990-2002; Bibliographic description is based on 1990 annual report; CA 9000-8-0006 Subagreement 8; Includes bibliographic references; Issues lack volume numbering Title: Crater Lake limnological studies 1997 annual report Author: Oregon State University; in collaboration with the National Park Service Year: 1997, 2009 1982 - 2002; ill., maps; Title covers calendar years 1990-2002; Bibliographic description is based on 1990 annual report; CA 9000-8-0006 Subagreement 8; Includes bibliographic references; Issues lack volume numbering Close

• 22. [Image] Interpreting variations in Secchi disk transparencies of Crater Lake: a deep caldera lake

  	ill.; Caption title; Includes bibliographical references;
  	Citation × Citation Citation Abstract Copy Title: Interpreting variations in Secchi disk transparencies of Crater Lake: a deep caldera lake Author: Larson, Gary L. Year: 2009 ill.; Caption title; Includes bibliographical references; Title: Interpreting variations in Secchi disk transparencies of Crater Lake: a deep caldera lake Author: Larson, Gary L. Year: 2009 ill.; Caption title; Includes bibliographical references; Close

• 23. [Image] A review of the taxonomic status of pines including true firs within the pinus ponderosa forest in the southern portion of Crater Lake National Park, Oregon

  	ill.; Report title; "A report to the Superintendent, Crater Lake National Park, March 1982." - T.p.; Includes bibliographical references (p. 11-16)
  	Citation × Citation Citation Abstract Copy Title: A review of the taxonomic status of pines including true firs within the pinus ponderosa forest in the southern portion of Crater Lake National Park, Oregon Author: Mastrogiuseppe, R. J. Year: 1982, 2009 ill.; Report title; "A report to the Superintendent, Crater Lake National Park, March 1982." - T.p.; Includes bibliographical references (p. 11-16) Title: A review of the taxonomic status of pines including true firs within the pinus ponderosa forest in the southern portion of Crater Lake National Park, Oregon Author: Mastrogiuseppe, R. J. Year: 1982, 2009 ill.; Report title; "A report to the Superintendent, Crater Lake National Park, March 1982." - T.p.; Includes bibliographical references (p. 11-16) Close

• 24. [Image] The geology and geochemistry of thirteen cinder cones at Crater Lake National Park, Oregon

  	ill.; maps; Thesis (M.S.)--University of Oregon, 1985; Includes vita and abstract; Includes bibliographical references (leaves 154-158)
  	Citation × Citation Citation Abstract Copy Title: The geology and geochemistry of thirteen cinder cones at Crater Lake National Park, Oregon Author: Prueher, Elizabeth M., 1957- Year: 1985, 2009 ill.; maps; Thesis (M.S.)--University of Oregon, 1985; Includes vita and abstract; Includes bibliographical references (leaves 154-158) Title: The geology and geochemistry of thirteen cinder cones at Crater Lake National Park, Oregon Author: Prueher, Elizabeth M., 1957- Year: 1985, 2009 ill.; maps; Thesis (M.S.)--University of Oregon, 1985; Includes vita and abstract; Includes bibliographical references (leaves 154-158) Close

• 25. [Image] The Marysville, Montana Geothermal Project (Revised)

  	The object of the Marysville Geothermal Project is to investigate a region of abnormally high geothermal heat flow near Marysville, MT, about 20 miles northwest of Helena. The research should determine ...
  	Citation × Citation Citation Abstract Copy Title: The Marysville, Montana Geothermal Project (Revised) Author: McSpadden, W.R. Year: 1974 The object of the Marysville Geothermal Project is to investigate a region of abnormally high geothermal heat flow near Marysville, MT, about 20 miles northwest of Helena. The research should determine the nature and size of the resource, how the energy might be extracted, the potential monetary value of the energy, and how similar resources elsewhere might be located. The heat source was expected to be a granitic pluton or magmatic intrusion, 10,000 to 40,000 years old, with temperatures in the range of 300 to 500°C. Originally it was thought that the pluton was at relatively shallow depths, but at present its depth and exact location are unknown Title: The Marysville, Montana Geothermal Project (Revised) Author: McSpadden, W.R. Year: 1974 The object of the Marysville Geothermal Project is to investigate a region of abnormally high geothermal heat flow near Marysville, MT, about 20 miles northwest of Helena. The research should determine the nature and size of the resource, how the energy might be extracted, the potential monetary value of the energy, and how similar resources elsewhere might be located. The heat source was expected to be a granitic pluton or magmatic intrusion, 10,000 to 40,000 years old, with temperatures in the range of 300 to 500°C. Originally it was thought that the pluton was at relatively shallow depths, but at present its depth and exact location are unknown Close

• 26. [Image] Geothermal Investigations in Idaho. Part 8. Heat Flow Study of the Snake River Plain Region, Idaho

  	The Snake River Plain of Idaho has recent lava flows and a large number of thermal springs and wells. A heat flow study was initiated which, together with available geological and geophysical information, ...
  	Citation × Citation Citation Abstract Copy Title: Geothermal Investigations in Idaho. Part 8. Heat Flow Study of the Snake River Plain Region, Idaho Author: Brott, C.A. Year: 1976 The Snake River Plain of Idaho has recent lava flows and a large number of thermal springs and wells. A heat flow study was initiated which, together with available geological and geophysical information, allows a better definition of the geothermal resource and evaluation of the geothermal potential. Local geothermal anomalies were not the objects of this study and have not been studied in detail. The quality of the heat flow values obtained varies as interpretation was necessary to determine geothermal gradients for many of the holes which had disturbances. A major problem in determining the heat flow values is the lack of knowledge of the in situ porosity of the rocks. The heat flow values obtained for the Eastern Snake River Plain are from shallow wells (< 200 m), hence the heat flow there is low (< 0.5 HFU) because of the water movement in the Snake Plain aquifer. The anomalous regional heat flow pattern around the Snake River Plain, together with other geophysical and geological data, suggest the presence of a major crustal heat source. With the exception of the area of the Snake Plain aquifer, high geothermal gradients were found in all areas of southern Idaho (40 to 100/sup 0/C/km). Temperatures hot enough for space heating can be found most anywhere in the Plain at relatively shallow depths (1 to 2 km). Temperatures hot enough for electrical power generation (200/sup 0/C) can be found beneath southern Idaho almost anywhere at depths of 3 to 4 kilometers. The Plain is fault bounded and hot water circulating along the fault zones from depths can be a very important geothermal resource at shallow depths. The margins of the Plain have the highest heat flow values, are the most faulted, and have possibly the highest geothermal resource potential Title: Geothermal Investigations in Idaho. Part 8. Heat Flow Study of the Snake River Plain Region, Idaho Author: Brott, C.A. Year: 1976 The Snake River Plain of Idaho has recent lava flows and a large number of thermal springs and wells. A heat flow study was initiated which, together with available geological and geophysical information, allows a better definition of the geothermal resource and evaluation of the geothermal potential. Local geothermal anomalies were not the objects of this study and have not been studied in detail. The quality of the heat flow values obtained varies as interpretation was necessary to determine geothermal gradients for many of the holes which had disturbances. A major problem in determining the heat flow values is the lack of knowledge of the in situ porosity of the rocks. The heat flow values obtained for the Eastern Snake River Plain are from shallow wells (< 200 m), hence the heat flow there is low (< 0.5 HFU) because of the water movement in the Snake Plain aquifer. The anomalous regional heat flow pattern around the Snake River Plain, together with other geophysical and geological data, suggest the presence of a major crustal heat source. With the exception of the area of the Snake Plain aquifer, high geothermal gradients were found in all areas of southern Idaho (40 to 100/sup 0/C/km). Temperatures hot enough for space heating can be found most anywhere in the Plain at relatively shallow depths (1 to 2 km). Temperatures hot enough for electrical power generation (200/sup 0/C) can be found beneath southern Idaho almost anywhere at depths of 3 to 4 kilometers. The Plain is fault bounded and hot water circulating along the fault zones from depths can be a very important geothermal resource at shallow depths. The margins of the Plain have the highest heat flow values, are the most faulted, and have possibly the highest geothermal resource potential Close

• 27. [Image] Research on the Physical Properties of Geothermal Reservoir Rock. Quarterly Report, March 1978

  	A laboratory study of the P-wave velocity and electric Resistivity was undertaken on Cenozoic Volcanic Rocks collected from the Columbia Plateau Volcanic basin (C) and the Jemez Volcanic field (NM). Electric ...
  	Citation × Citation Citation Abstract Copy Title: Research on the Physical Properties of Geothermal Reservoir Rock. Quarterly Report, March 1978 Author: Keller, G.V. Year: 1978 A laboratory study of the P-wave velocity and electric Resistivity was undertaken on Cenozoic Volcanic Rocks collected from the Columbia Plateau Volcanic basin (C) and the Jemez Volcanic field (NM). Electric resistivities of cylindrical samples saturated with 0.1 N NaCl solution were measured using a four electrode system and a 1.0 KHz frequency source. Seismic P-wave velocities were calculated from measured transit time of mechanical pulses generated and received by piezoelectric transducers. The electric Resistivity of water saturated Samples decreased as temperature increased to the boiling point of water. Above boiling point, Resistivity increased rapidly as water changed to vapor. Resistivity is most sensitive to temperature changes between 35/sup 0/C to 65/sup 0/C. Resistivities of samples increased with decrease in saturation. The effect is more pronounced at lower temperatures. No dependence of seismic P-wave velocities on temperature was observed. Both Resistivity and P-wave velocity depend on porosity. The increase in porosity results in a decrease in the Resistivity formation factor. Assuming a relationship FF = a phi/sup -m/ (Archie's Law), where FF and phi represent the formation factor and porosity respectively, least squares indicate a variation of a between .5 and 2.0. The value of m varied between 1.2 to 1.7. Seismic velocities (v) decrease as porosity increases. Porosity appears to be linearly related to log v. Several Samples show anomalous relationship between porosity and Resistivity. Most of these samples also show anomalous seismic velocities. The majority of these samples have coarse grains or large pores. The effect of saturation on P-wave velocity is small and can be observed in few samples. In these samples, seismic velocities decrease with increase in saturation at high saturation (100% to 85%), and show a reverse relationship at low saturation. Between 15% and 85% saturation in velocity is constant Title: Research on the Physical Properties of Geothermal Reservoir Rock. Quarterly Report, March 1978 Author: Keller, G.V. Year: 1978 A laboratory study of the P-wave velocity and electric Resistivity was undertaken on Cenozoic Volcanic Rocks collected from the Columbia Plateau Volcanic basin (C) and the Jemez Volcanic field (NM). Electric resistivities of cylindrical samples saturated with 0.1 N NaCl solution were measured using a four electrode system and a 1.0 KHz frequency source. Seismic P-wave velocities were calculated from measured transit time of mechanical pulses generated and received by piezoelectric transducers. The electric Resistivity of water saturated Samples decreased as temperature increased to the boiling point of water. Above boiling point, Resistivity increased rapidly as water changed to vapor. Resistivity is most sensitive to temperature changes between 35/sup 0/C to 65/sup 0/C. Resistivities of samples increased with decrease in saturation. The effect is more pronounced at lower temperatures. No dependence of seismic P-wave velocities on temperature was observed. Both Resistivity and P-wave velocity depend on porosity. The increase in porosity results in a decrease in the Resistivity formation factor. Assuming a relationship FF = a phi/sup -m/ (Archie's Law), where FF and phi represent the formation factor and porosity respectively, least squares indicate a variation of a between .5 and 2.0. The value of m varied between 1.2 to 1.7. Seismic velocities (v) decrease as porosity increases. Porosity appears to be linearly related to log v. Several Samples show anomalous relationship between porosity and Resistivity. Most of these samples also show anomalous seismic velocities. The majority of these samples have coarse grains or large pores. The effect of saturation on P-wave velocity is small and can be observed in few samples. In these samples, seismic velocities decrease with increase in saturation at high saturation (100% to 85%), and show a reverse relationship at low saturation. Between 15% and 85% saturation in velocity is constant Close

• 28. [Image] ASP: An Automated Seismic Processor for Microearthquake Networks

  	ASP, a low-power, in-field Automated Seismic Processor of microearthquake network data has been designed, fabricated, and deployed for initial operation in four different field areas to monitor seismicity ...
  	Citation × Citation Citation Abstract Copy Title: ASP: An Automated Seismic Processor for Microearthquake Networks Author: McEvilly, T. V. Year: 1981 ASP, a low-power, in-field Automated Seismic Processor of microearthquake network data has been designed, fabricated, and deployed for initial operation in four different field areas to monitor seismicity associated with two geothermal areas (The Geysers, California, and Cerro Prieto, Mexico), a nuclear explosion with its related collapse and aftershock sequence, and late (> 1 year) activity in a major aftershock series (Livermore, California). A second ASP system, with a high-speed front-end, is used in acoustic emission (1-20 kHz) analysis for fracture monitoring. Each of the 15 channels of ASP (configured for up to 128 channels) automatically detects, measures times and amplitudes, and computes and fits FFr's for both the P and S waves on data sampled at 100 samples/sec. These data from each channel are then processed with a central microprocessor for hypocenter location, running b-values, source parameters, event count, and P-wave polarities. The system is capable of processing a 15-station detection in approximately 40 seconds, excluding print-out. The initial trials have demonstrated that infield real-time analysis of data maximizes the efficiency of microearthquake surveys allowing flexibility in experimental procedures, with a minimum of the traditional labor-intensive postprocessing. Current efforts are directed towards improving efficiency of computation and data output and in expanding software capabilities Title: ASP: An Automated Seismic Processor for Microearthquake Networks Author: McEvilly, T. V. Year: 1981 ASP, a low-power, in-field Automated Seismic Processor of microearthquake network data has been designed, fabricated, and deployed for initial operation in four different field areas to monitor seismicity associated with two geothermal areas (The Geysers, California, and Cerro Prieto, Mexico), a nuclear explosion with its related collapse and aftershock sequence, and late (> 1 year) activity in a major aftershock series (Livermore, California). A second ASP system, with a high-speed front-end, is used in acoustic emission (1-20 kHz) analysis for fracture monitoring. Each of the 15 channels of ASP (configured for up to 128 channels) automatically detects, measures times and amplitudes, and computes and fits FFr's for both the P and S waves on data sampled at 100 samples/sec. These data from each channel are then processed with a central microprocessor for hypocenter location, running b-values, source parameters, event count, and P-wave polarities. The system is capable of processing a 15-station detection in approximately 40 seconds, excluding print-out. The initial trials have demonstrated that infield real-time analysis of data maximizes the efficiency of microearthquake surveys allowing flexibility in experimental procedures, with a minimum of the traditional labor-intensive postprocessing. Current efforts are directed towards improving efficiency of computation and data output and in expanding software capabilities Close

• 29. [Article] Vector Control - Wetlands of Concern

  Abstract -- The Wetlands of Concern dataset represents one type of “sensitive area” for the purpose of reviewing and approving Pesticide Use Plans per ODFW's obligations under ORS 452.140 and ORS 452.245. ...

  Citation × Citation Citation Abstract Copy Title: Vector Control - Wetlands of Concern Abstract -- The Wetlands of Concern dataset represents one type of “sensitive area” for the purpose of reviewing and approving Pesticide Use Plans per ODFW's obligations under ORS 452.140 and ORS 452.245. ODFW will only make recommendations for mosquito control treatment protocols on sensitive areas, as identified in ODFW's Vector Control Guidance for Sensitive Areas (http://www.dfw.state.or.us/fish/water/docs/Sensitive_Area_Guidance.pdf) or confirmed by the local fish and wildlife biologists utilizing the guidelines in the document. In general, a sensitive area is any area where fish and wildlife and their habitats are rare or of local importance due to their special nature or role in the ecosystem. Species-specific and location-specific details are not maintained in this dataset. This dataset is derived from the Oregon Wetlands Cover. The Oregon Wetlands Cover is a key component of the Oregon Wetland Explorer data portal (http://oregonexplorer.info/wetlands), and is intended to (1) serve as a framework for storing and disseminating information on the state's wetlands, and (2) promote comprehensive monitoring, assessment, conservation, and restoration of Oregon's wetlands. Wetlands with a Total Conservation Significance score of 70 and above were included in this dataset for the purpose of identifying wetlands of concern for vector control purposes. Title: Vector Control - Wetlands of Concern Abstract -- The Wetlands of Concern dataset represents one type of “sensitive area” for the purpose of reviewing and approving Pesticide Use Plans per ODFW's obligations under ORS 452.140 and ORS 452.245. ODFW will only make recommendations for mosquito control treatment protocols on sensitive areas, as identified in ODFW's Vector Control Guidance for Sensitive Areas (http://www.dfw.state.or.us/fish/water/docs/Sensitive_Area_Guidance.pdf) or confirmed by the local fish and wildlife biologists utilizing the guidelines in the document. In general, a sensitive area is any area where fish and wildlife and their habitats are rare or of local importance due to their special nature or role in the ecosystem. Species-specific and location-specific details are not maintained in this dataset. This dataset is derived from the Oregon Wetlands Cover. The Oregon Wetlands Cover is a key component of the Oregon Wetland Explorer data portal (http://oregonexplorer.info/wetlands), and is intended to (1) serve as a framework for storing and disseminating information on the state's wetlands, and (2) promote comprehensive monitoring, assessment, conservation, and restoration of Oregon's wetlands. Wetlands with a Total Conservation Significance score of 70 and above were included in this dataset for the purpose of identifying wetlands of concern for vector control purposes. Close

• 30. [Article] ODFW Wildlife Linkages Datasets

  Abstract -- Two GIS datasets are contained in this record: The Oregon Department of Fish and Wildlife, under the Oregon Wildlife Movement Strategy and in partnership with other government agencies, has ...

  Citation × Citation Citation Abstract Copy Title: ODFW Wildlife Linkages Datasets Abstract -- Two GIS datasets are contained in this record: The Oregon Department of Fish and Wildlife, under the Oregon Wildlife Movement Strategy and in partnership with other government agencies, has worked to produce this dataset of wildlife linkages, which are key movement areas for wildlife, emphasizing areas that cross paved roads. The primary goal of this dataset and its related attributes are to address the question: "Where is the best place on the landscape to provide for animal movement needs that are essential to life history function?" Title: ODFW Wildlife Linkages Datasets Abstract -- Two GIS datasets are contained in this record: The Oregon Department of Fish and Wildlife, under the Oregon Wildlife Movement Strategy and in partnership with other government agencies, has worked to produce this dataset of wildlife linkages, which are key movement areas for wildlife, emphasizing areas that cross paved roads. The primary goal of this dataset and its related attributes are to address the question: "Where is the best place on the landscape to provide for animal movement needs that are essential to life history function?" Close