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349 produkter
Marine Mammals and Low-Frequency Sound
Progress Since 1994
Av Committee to Review Results of ATOC's Marine Mammal Research Program, Ocean Studies Board m. fl.
E-bok, 2000
693 kr
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Sound has become a major tool for studying the ocean. Although the ocean is relatively opaque to light, it is relatively transparent to sound. Sound having frequencies below 1,000 Hertz (Hz) is often defined as low-frequency sound. The speed of sound is proportional to the temperature of the water …
Assessment of the U.S. Outer Continental Shelf Environmental Studies Program
II. Ecology
Av National Research Council, Division on Earth and Life Studies m. fl.
Häftad, 1992
1303 kr
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Assessment of the U.S. Outer Continental Shelf Environmental Studies Program reviews the ecological studies done by the Environmental Studies Program of the Minerals Management Service. This program, which has spent $10 million a year on ecological studies in recent years, is designed to provide …
Applications of Analytical Chemistry to Oceanic Carbon Cycle Studies
Av National Research Council, Division on Earth and Life Studies m. fl.
Häftad, 1993
1303 kr
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This book both describes the chemical parameters that must be measured in the ocean in order to improve our understanding of the ocean's role in the global carbon cycle and recommends technologies of analytical chemistry that could be applied to these parameters. Additionally, the volume recommends …
Priorities for Coastal Ecosystem Science
Av National Research Council, Division on Earth and Life Studies m. fl.
Häftad, 1995
632 kr
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This book describes critical environmental issues that face coastal ocean and Great Lakes areas, including eutrophication, habitat modification, hydrologic and hydrodynamic disruption, exploitation of resources, toxic effects on ecosystems and humans, introduction of nonindigenous species, global …
Promoting the National Spatial Data Infrastructure Through Partnerships
Av National Research Council, Division on Earth and Life Studies m. fl.
Häftad, 1994
1310 kr
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Cooperation and partnerships for spatial data activities among the federal government, state and local governments, and the private sector will be essential for the development of a robust National Spatial Data Infrastructure (NSDI). This book addresses the nature of these partnerships and examines …
Bering Sea Ecosystem
Av National Research Council, Division on Earth and Life Studies m. fl.
Häftad, 1996
1693 kr
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The Bering Sea, which lies between the United States and Russia, is one of the most productive ecosystems in the world and has prolific fishing grounds. Yet there have been significant unexplained population fluctuations in marine mammals and birds in the region. The book examines the Bering Sea …
Glass as a Waste Form and Vitrification Technology
Summary of an International Workshop
Av National Research Council, Division on Earth and Life Studies m. fl.
Häftad, 1997
1400 kr
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Interim Review of the Subsonic Assessment Project
Management, Science, and Goals
Av National Research Council, Division on Earth and Life Studies m. fl.
Häftad, 1997
1132 kr
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50 Years of Ocean Discovery
National Science Foundation 1950-2000
Av National Research Council, Division on Earth and Life Studies m. fl.
Inbunden, 2000
1376 kr
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This book describes the development of ocean sciences over the past 50 years, highlighting the contributions of the National Science Foundation (NSF) to the field's progress. Many of the individuals who participated in the exciting discoveries in biological oceanography, chemical oceanography, …
Rock Fractures and Fluid Flow
Contemporary Understanding and Applications
Av National Research Council, Division on Earth and Life Studies m. fl.
Häftad, 1996
1411 kr
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Scientific understanding of fluid flow in rock fractures--a process underlying contemporary earth science problems from the search for petroleum to the controversy over nuclear waste storage--has grown significantly in the past 20 years. This volume presents a comprehensive report on the state of …
Valuing Ground Water
Economic Concepts and Approaches
Av National Research Council, Division on Earth and Life Studies m. fl.
Häftad, 1997
1657 kr
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Because water in the United State has not been traded in markets, there is no meaningful estimate of what it would cost if it were traded. But failing to establish ground water's value--for in situ uses such as sustaining wetlands as well as for extractive uses such as agriculture--will lead to …
Modeling Mobile-Source Emissions
Av Committee to Review EPA's Mobile Source Emissions Factor (MOBILE) Model, Board on Environmental Studies and Toxicology m. fl.
E-bok, 2000
1039 kr
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The Mobile Source Emissions Factor (MOBILE) model is a computer model developed by the U.S. Environmental Protection Agency (EPA) for estimating emissions from on-road motor vehicles. MOBILE is used in air-quality planning and regulation for estimating emissions of carbon monoxide (CO), volatile …
50 Years of Ocean Discovery
National Science Foundation 1950-2000
Av Ocean Studies Board, Environment and Resources Commission on Geosciences m. fl.
E-bok, 2000
658 kr
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This book describes the development of ocean sciences over the past 50 years, highlighting the contributions of the National Science Foundation (NSF) to the field''s progress. Many of the individuals who participated in the exciting discoveries in biological oceanography, chemical oceanography, …
Hardrock Mining on Federal Lands
Av Committee on Hardrock Mining on Federal Lands, Board on Earth Sciences and Resources m. fl.
E-bok, 1999
676 kr
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This book, the result of a congressionally mandated study, examines the adequacy of the regulatory framework for mining of hardrock minerals—such as gold, silver, copper, and uranium—on over 350 million acres of federal lands in the western United States. These lands are managed by two agencies—the …
Hydrologic Science Priorities for the U.S. Global Change Research Program
An Initial Assessment
Av Committee on Hydrologic Science, Environment and Resources Commission on Geosciences m. fl.
E-bok, 1999
658 kr
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The availability of fresh water is potentially one of the most pervasive crises of the coming century. Water-related decisions will determine the future of major ecosystems, the health of regional economies, and the political stability of nations. A vigorous program of research in hydrologic …
Research Priorities for Airborne Particulate Matter
II. Evaluating Research Progress and Updating the Portfolio
Av Committee on Research Priorities for Airborne Particulate Matter, Board on Environmental Studies and Toxicology m. fl.
E-bok, 1999
624 kr
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In the effort to reduce the scientific and technical uncertainties over regulation of airborne particulate matter in the United States, Research Priorities for Airborne Particulate Matter: II. Evaluating Research Progress and Updating the Portfolio , the second book in a four-part series requested …
Groundwater and Soil Cleanup
Improving Management of Persistent Contaminants
Av Committee on Technologies for Cleanup of Subsurface Contaminants in the DOE Weapons Complex, Environment and Resources Commission on Geosciences m. fl.
E-bok, 1999
1017 kr
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This book presents a comprehensive, up-to-date review of technologies for cleaning up contaminants in groundwater and soil. It provides a special focus on three classes of contaminants that have proven very difficult to treat once released to the subsurface: metals, radionuclides, and dense …
Review of NASA's 'Atmospheric Effects of Stratospheric Aircraft' Project
Av Panel on Atmospheric Effects of Aviation, Environment and Resources Commission on Geosciences m. fl.
E-bok, 1999
658 kr
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The NRC Panel on the Atmospheric Effects of Aviation (PAEAN) was established to provide guidance to NASA''s Atmospheric Effects of Aviation Program (AEAP) by evaluating the appropriateness of the program''s research plan, appraising the project-sponsored results relative to the current state of …
Identifying Future Drinking Water Contaminants
Av 1998 Workshop on Emerging Drinking Water Contaminants, Environment and Resources Commission on Geosciences m. fl.
E-bok, 1999
678 kr
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With an increasing population, use of new and diverse chemicals that can enter the water supply, and emergence of new microbial pathogens, the U.S. federal government is faced with a regulatory dilemma: Where should it focus its attention and limited resources to ensure safe drinking water supplies …
Improving American River Flood Frequency Analyses
Av Committee on American River Flood Frequencies, Environment and Resources Commission on Geosciences m. fl.
E-bok, 1999
831 kr
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Sacramento, California, has grown literally at the edge of the Sacramento and American Rivers and for 150 years has struggled to protect itself from periodic floods by employing structural and land management measures. Much of the population lives behind levees, and most of the city''s downtown …
Atmospheric Effects of Aviation
A Review of NASA''s Subsonic Assessment Project
Av Panel on Atmospheric Effects of Aviation, Environment and Resources Commission on Geosciences m. fl.
E-bok, 1999
658 kr
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Aviation is an integral part of the global transportation network, and the number of flights worldwide is expected to grow rapidly in the coming decades. Yet, the effects that subsonic aircraft emissions may be having upon atmospheric composition and climate are not fully understood. To study such …
Hydrologic Hazards Science at the U.S. Geological Survey
Av Committee on U.S. Geological Survey Water Resources Research, Environment and Resources Commission on Geosciences m. fl.
E-bok, 1999
639 kr
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Losses of life and property in the United States—and throughout the world—resulting from hydrologic hazards, including floods, droughts, and related phenomena, are significant and increasing. Public awareness of, and federal attention to, natural disaster reduction, with a focus on mitigation or …
From Monsoons to Microbes
Understanding the Ocean''s Role in Human Health
Av Committee on the Ocean's Role in Human Health, Ocean Studies Board m. fl.
E-bok, 1999
676 kr
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What can sharks teach us about our immune system? What can horseshoe crabs show us about eyesight? The more we learn about the ocean, the more we realize how critical these vast bodies of water are to our health and well-being. Sometimes the ocean helps us, as when a marine organism yields a new …
Capacity of U.S. Climate Modeling to Support Climate Change Assessment Activities
Av Climate Research Committee, Environment and Resources Commission on Geosciences m. fl.
E-bok, 1999
658 kr
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The U.S. government has pending before it the ratification of the Kyoto Protocol, an agreement to limit the emissions of greenhouse gases (GHGs), which is largely based on the threat GHGs pose to the global climate. Such an agreement would have significant economic and national security …
Reducing Disaster Losses Through Better Information
Av Board on Natural Disasters, Environment and Resources Commission on Geosciences m. fl.
E-bok, 1999
589 kr
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Losses of life and property from natural disasters in the United States-and throughout the world-have been enormous and the potential for substantially greater future losses looms. It is clearly in the public interest to reduce these impacts and to encourage the development of communities that are …
Environmental Cleanup at Navy Facilities
Risk-Based Methods
Av Committee on Environmental Remediation at Naval Facilities, Environment and Resources Commission on Geosciences m. fl.
E-bok, 1999
953 kr
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The fiscal and technological limitations associated with cleaning up hazardous waste sites to background conditions have prompted responsible parties to turn to risk-based methods for environmental rememdiation. Environmental Cleanup at Navy Facilities reviews and critiques risk-based methods, …
Setting Priorities for Drinking Water Contaminants
Av Committee on Drinking Water Contaminants, Environment and Resources Commission on Geosciences m. fl.
E-bok, 1998
710 kr
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The provision of safe drinking water has been an important factor in the improvement of the health status of U.S. communities since the turn of the last century. Nonetheless, outbreaks of waterborne disease and incidences of chemical contamination of drinking water continue to occur. Setting …
Atmospheric Effects of Stratospheric Aircraft Project
An Interim Review of Science and Progress
Av Panel on Atmospheric Effects of Aviation, Environment and Resources Commission on Geosciences m. fl.
E-bok, 1998
404 kr
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Scientists and policy-makers alike are concerned that operation of a fleet of high-speed civil transport (HSCT) aircraft could significantly affect the global atmosphere. HSCT emissions may have a direct effect on the chemistry of the atmosphere, leading to changes in the distribution of ozone; …
Systems Analysis and Systems Engineering in Environmental Remediation Programs at the Department of Energy Hanford Site
Av Committee on Remediation of Buried and Tank Wastes, Environment and Resources Commission on Geosciences m. fl.
E-bok, 1998
589 kr
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The primary purpose of systems engineering is to organize information and knowledge to assist those who manage, direct, and control the planning, development, production, and operation of the systems necessary to accomplish a given mission. However, this purpose can be compromised or defeated if …
Research Priorities for Airborne Particulate Matter
I. Immediate Priorities and a Long-Range Research Portfolio
Av Committee on Research Priorities for Airborne Particulate Matter, Board on Environmental Studies and Toxicology m. fl.
E-bok, 1998
695 kr
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New National Ambient Air Quality Standards for airborne particles smaller than 2.5 micrometers, called PM2.5, were issued by the U.S. Environmental Protection Agency (EPA) amidst scientific uncertainty and controversy. In response to a request from Congress, Research Priorities for Airborne …
