Search

Search Results

• 1. [Image] Instruments for Subsurface Monitoring of Geothermal Subsidence

  	The requirements for a subsurface geothermal subsidence instrument were reviewed. Available instruments for monitoring subsurface displacements, both vertical and horizontal, were studied and the most ...
  	Citation × Citation Citation Abstract Copy Title: Instruments for Subsurface Monitoring of Geothermal Subsidence Author: O'Rourke, J.E. Year: 1979 The requirements for a subsurface geothermal subsidence instrument were reviewed. Available instruments for monitoring subsurface displacements, both vertical and horizontal, were studied and the most capable instruments identified. Techniques and materials for improving existing or developing new instruments were evaluated. Elements of sensor and signal technology with potential for high temperature monitoring of subsidence were identified. Drawing from these studies, methods to adapt production Wells for monitoring were proposed and several new instrumentation systems were conceptually designed. Finally, four instrumentation systems were selected for future development. These systems are: triple sensor induction sensor probe (with casing collar markers); triple sensor gamma ray detector probe (with radioactive markers); triple sensor reed switch probe (with magnet markers); and triple sensor oscillator-type magnet detector probe (with magnet markers). All are designed for use in well casing incorporating slip couplings or bellows sections, although the gamma ray detector probe may also be used in unlined holes. These systems all measure vertical movement. Instruments to measure horizontal displacement due to geothermal subsidence were studied and the required instrument performance was judged to be beyond the state-of-the-art. Thus, no conceptual designs for instruments to monitor horizontal movement are included Title: Instruments for Subsurface Monitoring of Geothermal Subsidence Author: O'Rourke, J.E. Year: 1979 The requirements for a subsurface geothermal subsidence instrument were reviewed. Available instruments for monitoring subsurface displacements, both vertical and horizontal, were studied and the most capable instruments identified. Techniques and materials for improving existing or developing new instruments were evaluated. Elements of sensor and signal technology with potential for high temperature monitoring of subsidence were identified. Drawing from these studies, methods to adapt production Wells for monitoring were proposed and several new instrumentation systems were conceptually designed. Finally, four instrumentation systems were selected for future development. These systems are: triple sensor induction sensor probe (with casing collar markers); triple sensor gamma ray detector probe (with radioactive markers); triple sensor reed switch probe (with magnet markers); and triple sensor oscillator-type magnet detector probe (with magnet markers). All are designed for use in well casing incorporating slip couplings or bellows sections, although the gamma ray detector probe may also be used in unlined holes. These systems all measure vertical movement. Instruments to measure horizontal displacement due to geothermal subsidence were studied and the required instrument performance was judged to be beyond the state-of-the-art. Thus, no conceptual designs for instruments to monitor horizontal movement are included Close

• 2. [Image] Annual report on the limnology and water quality monitoring program at Crater Lake National Park

  	ill.; Title from cover; "Prepared by Douglas W. Larson and Mark E. Forbes.";
  	Citation × Citation Citation Abstract Copy Title: Annual report on the limnology and water quality monitoring program at Crater Lake National Park Author: Larson, Douglas W. (Douglas William), 1949- Year: 1982, 2009 ill.; Title from cover; "Prepared by Douglas W. Larson and Mark E. Forbes."; Title: Annual report on the limnology and water quality monitoring program at Crater Lake National Park Author: Larson, Douglas W. (Douglas William), 1949- Year: 1982, 2009 ill.; Title from cover; "Prepared by Douglas W. Larson and Mark E. Forbes."; Close

• 3. [Image] A Senior Project Proposal for the Design and Implementation of a Monitoring System for a Combined Photovoltaic and Wind Power Installation at David Douglas High School

  	This proposal is for a senior project to design and install an interactive monitoring system for a renewable energy installation at David Douglas High School in Portland, Oregon. Three engineering problems ...
  	Citation × Citation Citation Abstract Copy Title: A Senior Project Proposal for the Design and Implementation of a Monitoring System for a Combined Photovoltaic and Wind Power Installation at David Douglas High School Author: Placencia, April Year: 2009 This proposal is for a senior project to design and install an interactive monitoring system for a renewable energy installation at David Douglas High School in Portland, Oregon. Three engineering problems need to be solved in order to complete the project. These problems are remounting the photovoltaic panels in the current installation, designing and installing the monitoring system, and designing and installing a Human-Machine Inter-face. The Human-Machine Interface will provide the interactive features of the system. This project is scheduled to be completed in June 2010, and has a budget of $9,000. This project is a partnership between Oregon Institute of Technology, Portland General lectric and David Douglas High School. Title: A Senior Project Proposal for the Design and Implementation of a Monitoring System for a Combined Photovoltaic and Wind Power Installation at David Douglas High School Author: Placencia, April Year: 2009 This proposal is for a senior project to design and install an interactive monitoring system for a renewable energy installation at David Douglas High School in Portland, Oregon. Three engineering problems need to be solved in order to complete the project. These problems are remounting the photovoltaic panels in the current installation, designing and installing the monitoring system, and designing and installing a Human-Machine Inter-face. The Human-Machine Interface will provide the interactive features of the system. This project is scheduled to be completed in June 2010, and has a budget of $9,000. This project is a partnership between Oregon Institute of Technology, Portland General lectric and David Douglas High School. Close

• 4. [Image] Water quality monitoring : technical guide book

  	"July 1999."
  	Citation × Citation Citation Abstract Copy Title: Water quality monitoring : technical guide book Author: Oregon. Governor's Watershed Enhancement Board Year: 1999, 2005, 2004 "July 1999." Title: Water quality monitoring : technical guide book Author: Oregon. Governor's Watershed Enhancement Board Year: 1999, 2005, 2004 "July 1999." Close

• 5. [Image] Visibility monitoring and data analysis report for Crater Lake National Park Dutton Ridge, Oregon: 1987 through 1991 monitoring seasons

  	ill. (some color),; Report cover' "November 1991." - T.p.; Condition codes used are those developed as part of the National Park Service Visibility Monitoring and Data Analysis Project. - p. 3; Includes ...
  	Citation × Citation Citation Abstract Copy Title: Visibility monitoring and data analysis report for Crater Lake National Park Dutton Ridge, Oregon: 1987 through 1991 monitoring seasons Author: Air Resource Specialists, Inc. Year: 1991, 2009, 2010 ill. (some color),; Report cover' "November 1991." - T.p.; Condition codes used are those developed as part of the National Park Service Visibility Monitoring and Data Analysis Project. - p. 3; Includes bibliographic referencees (p. 47, A8-A9); Title: Visibility monitoring and data analysis report for Crater Lake National Park Dutton Ridge, Oregon: 1987 through 1991 monitoring seasons Author: Air Resource Specialists, Inc. Year: 1991, 2009, 2010 ill. (some color),; Report cover' "November 1991." - T.p.; Condition codes used are those developed as part of the National Park Service Visibility Monitoring and Data Analysis Project. - p. 3; Includes bibliographic referencees (p. 47, A8-A9); Close

• 6. [Image] Geothermal Environmental Impact Assessment, Ground Water Monitoring Guidelines for Geothermal Development

  	Potential ground water pollution from geothermal resource development, conversion, and waste disposal are discussed and guidelines for developing a ground water monitoring plan for any such development ...
  	Citation × Citation Citation Abstract Copy Title: Geothermal Environmental Impact Assessment, Ground Water Monitoring Guidelines for Geothermal Development Author: Weiss, R.B. Year: 1979 Potential ground water pollution from geothermal resource development, conversion, and waste disposal are discussed and guidelines for developing a ground water monitoring plan for any such development are proposed. Geothermal processes, borehole logging, and injection well technology as they relate to geothermal development and ground water monitoring are also outlined Title: Geothermal Environmental Impact Assessment, Ground Water Monitoring Guidelines for Geothermal Development Author: Weiss, R.B. Year: 1979 Potential ground water pollution from geothermal resource development, conversion, and waste disposal are discussed and guidelines for developing a ground water monitoring plan for any such development are proposed. Geothermal processes, borehole logging, and injection well technology as they relate to geothermal development and ground water monitoring are also outlined Close

• 7. [Image] Environmental Monitoring for the Hot Dry Rock Geothermal Energy Development Project, Annual Report for the Period July 1975-June 1976

  	For the last four years, the Los Alamos Scientific Laboratory has been investigating the feasibility demonstration of a technique for extracting geothermal energy from hot dry rock existing at moderate ...
  	Citation × Citation Citation Abstract Copy Title: Environmental Monitoring for the Hot Dry Rock Geothermal Energy Development Project, Annual Report for the Period July 1975-June 1976 Author: Pettitt, Roland A. Year: 1976 For the last four years, the Los Alamos Scientific Laboratory has been investigating the feasibility demonstration of a technique for extracting geothermal energy from hot dry rock existing at moderate depths beneath the surface of the earth. In the hot dry rock (HDR) concept, a manmade geothermal reservoir would be formed by drilling an initial borehole into a region of hot rock, creating a large fracture at the bottom of the hole, then intersecting the fractured area with a second borehole. The heat contained in this underground reservoir would then be brought to the surface by the circulation of water through the system. The objectives of this environmental monitoring report are to provide a brief conceptual and historical summary of the Hot Dry Rock Geothermal Project, a brief overview of the environmental monitoring responsibilities and activities of the Los Alamos Scientific Laboratory, and descriptions of the studies, problems, and results obtained from the various monitoring programs. Included are descriptions of the work that has been done in three major monitoring areas: (1) water quality, both surface and subsurface; (2) seismicity, with a discussion of the monitoring strategy of regional, local, and close-in detection networks; and (3) climatology. The purpose of these programs is to record baseline data, define potential effects from the project activities, and determine and record any impacts that may occur. The development of the hot dry rock geothermal energy resource and associated energy extraction technology is a new field of endeavor, with no established environmental guidelines. It is doubtful if the problems encountered and solutions devised in traditional geothermal systems will apply directly to hot dry rock development. Therefore, the impacts that are encountered in this project will be of particular value in making future environmental Assessments for this type of energy resource development in other locations in different geologic settings. By the end of the reporting period, there had been no unacceptable impacts on the environment in any of the three monitoring areas Title: Environmental Monitoring for the Hot Dry Rock Geothermal Energy Development Project, Annual Report for the Period July 1975-June 1976 Author: Pettitt, Roland A. Year: 1976 For the last four years, the Los Alamos Scientific Laboratory has been investigating the feasibility demonstration of a technique for extracting geothermal energy from hot dry rock existing at moderate depths beneath the surface of the earth. In the hot dry rock (HDR) concept, a manmade geothermal reservoir would be formed by drilling an initial borehole into a region of hot rock, creating a large fracture at the bottom of the hole, then intersecting the fractured area with a second borehole. The heat contained in this underground reservoir would then be brought to the surface by the circulation of water through the system. The objectives of this environmental monitoring report are to provide a brief conceptual and historical summary of the Hot Dry Rock Geothermal Project, a brief overview of the environmental monitoring responsibilities and activities of the Los Alamos Scientific Laboratory, and descriptions of the studies, problems, and results obtained from the various monitoring programs. Included are descriptions of the work that has been done in three major monitoring areas: (1) water quality, both surface and subsurface; (2) seismicity, with a discussion of the monitoring strategy of regional, local, and close-in detection networks; and (3) climatology. The purpose of these programs is to record baseline data, define potential effects from the project activities, and determine and record any impacts that may occur. The development of the hot dry rock geothermal energy resource and associated energy extraction technology is a new field of endeavor, with no established environmental guidelines. It is doubtful if the problems encountered and solutions devised in traditional geothermal systems will apply directly to hot dry rock development. Therefore, the impacts that are encountered in this project will be of particular value in making future environmental Assessments for this type of energy resource development in other locations in different geologic settings. By the end of the reporting period, there had been no unacceptable impacts on the environment in any of the three monitoring areas Close

• 8. [Image] Seventh Day Adventist Church (Monitor, Oregon)

  	This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest....
  	Citation × Citation Citation Abstract Copy Title: Seventh Day Adventist Church (Monitor, Oregon) Year: 1963 This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest. Title: Seventh Day Adventist Church (Monitor, Oregon) Year: 1963 This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest. Close

• 9. [Image] Nidaros Community Church (Monitor, Oregon)

  	This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest....
  	Citation × Citation Citation Abstract Copy Title: Nidaros Community Church (Monitor, Oregon) Year: 1963 This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest. Title: Nidaros Community Church (Monitor, Oregon) Year: 1963 This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest. Close

• 10. [Image] Nidaros Community Church (Monitor, Oregon)

  	This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest....
  	Citation × Citation Citation Abstract Copy Title: Nidaros Community Church (Monitor, Oregon) Year: 1963 This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest. Title: Nidaros Community Church (Monitor, Oregon) Year: 1963 This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest. Close