Reconciling Observations of Global Temperature Change

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Publisher : National Academies Press
ISBN 13 : 0309183723
Total Pages : 101 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Reconciling Observations of Global Temperature Change by : National Research Council

Download or read book Reconciling Observations of Global Temperature Change written by National Research Council and published by National Academies Press. This book was released on 2000-01-07 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overall increase in global-mean atmospheric temperatures is predicted to occur in response to human-induced increases in atmospheric concentrations of heat-trapping "greenhouse gases." The most prominent of these gases, carbon dioxide, has increased in concentration by over 30% during the past 200 years, and is expected to continue to increase well into the future. Other changes in atmospheric composition complicate the picture. In particular, increases in the number of small particles (called aerosols) in the atmosphere regionally offset and mask the greenhouse effect, and stratospheric ozone depletion contributes to cooling of the upper troposphere and stratosphere. Many in the scientific community believe that a distinctive greenhouse-warming signature is evident in surface temperature data for the past few decades. Some, however, are puzzled by the fact that satellite temperature measurements indicate little, if any, warming of the lower to mid-troposphere (the layer extending from the surface up to about 8 km) since such satellite observations first became operational in 1979. The satellite measurements appear to be substantiated by independent trend estimates for this period based on radiosonde data. Some have interpreted this apparent discrepancy between surface and upper air observations as casting doubt on the overall reliability of the surface temperature record, whereas others have concluded that the satellite data (or the algorithms that are being used to convert them into temperatures) must be erroneous. It is also conceivable that temperatures at the earth's surface and aloft have not tracked each other perfectly because they have responded differently to natural and/or human-induced climate forcing during this particular 20-year period. Whether these differing temperature trends can be reconciled has implications for assessing: how much the earth has warmed during the past few decades, whether observed changes are in accord with the predicted response to the buildup of greenhouse gases in the atmosphere based on model simulations, and whether the existing atmospheric observing system is adequate for the purposes of monitoring global-mean temperature. This report reassesses the apparent differences between the temperature changes recorded by satellites and the surface thermometer network on the basis of the latest available information. It also offers an informed opinion as to how the different temperature records should be interpreted, and recommends actions designed to reduce the remaining uncertainties in these measurements.

Reconciling Observations of Global Temperature Change

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Author :
Publisher : National Academies Press
ISBN 13 : 0309068916
Total Pages : 101 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Reconciling Observations of Global Temperature Change by : National Research Council

Download or read book Reconciling Observations of Global Temperature Change written by National Research Council and published by National Academies Press. This book was released on 2000-02-07 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overall increase in global-mean atmospheric temperatures is predicted to occur in response to human-induced increases in atmospheric concentrations of heat-trapping "greenhouse gases." The most prominent of these gases, carbon dioxide, has increased in concentration by over 30% during the past 200 years, and is expected to continue to increase well into the future. Other changes in atmospheric composition complicate the picture. In particular, increases in the number of small particles (called aerosols) in the atmosphere regionally offset and mask the greenhouse effect, and stratospheric ozone depletion contributes to cooling of the upper troposphere and stratosphere. Many in the scientific community believe that a distinctive greenhouse-warming signature is evident in surface temperature data for the past few decades. Some, however, are puzzled by the fact that satellite temperature measurements indicate little, if any, warming of the lower to mid-troposphere (the layer extending from the surface up to about 8 km) since such satellite observations first became operational in 1979. The satellite measurements appear to be substantiated by independent trend estimates for this period based on radiosonde data. Some have interpreted this apparent discrepancy between surface and upper air observations as casting doubt on the overall reliability of the surface temperature record, whereas others have concluded that the satellite data (or the algorithms that are being used to convert them into temperatures) must be erroneous. It is also conceivable that temperatures at the earth's surface and aloft have not tracked each other perfectly because they have responded differently to natural and/or human-induced climate forcing during this particular 20-year period. Whether these differing temperature trends can be reconciled has implications for assessing: how much the earth has warmed during the past few decades, whether observed changes are in accord with the predicted response to the buildup of greenhouse gases in the atmosphere based on model simulations, and whether the existing atmospheric observing system is adequate for the purposes of monitoring global-mean temperature. This report reassesses the apparent differences between the temperature changes recorded by satellites and the surface thermometer network on the basis of the latest available information. It also offers an informed opinion as to how the different temperature records should be interpreted, and recommends actions designed to reduce the remaining uncertainties in these measurements.

Understanding Earth's Deep Past

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Publisher : National Academies Press
ISBN 13 : 0309209196
Total Pages : 153 pages
Book Rating : 4.3/5 (92 download)

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Book Synopsis Understanding Earth's Deep Past by : National Research Council

Download or read book Understanding Earth's Deep Past written by National Research Council and published by National Academies Press. This book was released on 2011-08-02 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is little dispute within the scientific community that humans are changing Earth's climate on a decadal to century time-scale. By the end of this century, without a reduction in emissions, atmospheric CO2 is projected to increase to levels that Earth has not experienced for more than 30 million years. As greenhouse gas emissions propel Earth toward a warmer climate state, an improved understanding of climate dynamics in warm environments is needed to inform public policy decisions. In Understanding Earth's Deep Past, the National Research Council reports that rocks and sediments that are millions of years old hold clues to how the Earth's future climate would respond in an environment with high levels of atmospheric greenhouse gases. Understanding Earth's Deep Past provides an assessment of both the demonstrated and underdeveloped potential of the deep-time geologic record to inform us about the dynamics of the global climate system. The report describes past climate changes, and discusses potential impacts of high levels of atmospheric greenhouse gases on regional climates, water resources, marine and terrestrial ecosystems, and the cycling of life-sustaining elements. While revealing gaps in scientific knowledge of past climate states, the report highlights a range of high priority research issues with potential for major advances in the scientific understanding of climate processes. This proposed integrated, deep-time climate research program would study how climate responded over Earth's different climate states, examine how climate responds to increased atmospheric carbon dioxide and other greenhouse gases, and clarify the processes that lead to anomalously warm polar and tropical regions and the impact on marine and terrestrial life. In addition to outlining a research agenda, Understanding Earth's Deep Past proposes an implementation strategy that will be an invaluable resource to decision-makers in the field, as well as the research community, advocacy organizations, government agencies, and college professors and students.

Observing Global Climate Change

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Publisher : CRC Press
ISBN 13 : 1135749159
Total Pages : 632 pages
Book Rating : 4.1/5 (357 download)

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Book Synopsis Observing Global Climate Change by : Kyrill Ya Kondratyev

Download or read book Observing Global Climate Change written by Kyrill Ya Kondratyev and published by CRC Press. This book was released on 2017-12-14 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collaborative book aims to offer a comprehensive introduction to global climate, the way it is currently changing, the role of earth, air and satellite observation and monitoring, and subsequent climate modelling. It focuses on the interaction between natural and anthropogenic human- made change factors. The book emphasizes the importance of capturing climatic data and the use of that data in computer-based climatic modelling.

Climate Change Science

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Publisher : National Academies Press
ISBN 13 : 0309183359
Total Pages : 41 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Climate Change Science by : National Research Council

Download or read book Climate Change Science written by National Research Council and published by National Academies Press. This book was released on 2001-06-28 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: The warming of the Earth has been the subject of intense debate and concern for many scientists, policy-makers, and citizens for at least the past decade. Climate Change Science: An Analysis of Some Key Questions, a new report by a committee of the National Research Council, characterizes the global warming trend over the last 100 years, and examines what may be in store for the 21st century and the extent to which warming may be attributable to human activity.

Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space

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Publisher : National Academies Press
ISBN 13 : 0309492432
Total Pages : 29 pages
Book Rating : 4.3/5 (94 download)

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Book Synopsis Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space by : National Academies of Sciences, Engineering, and Medicine

Download or read book Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2019-06-18 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: We live on a dynamic Earth shaped by both natural processes and the impacts of humans on their environment. It is in our collective interest to observe and understand our planet, and to predict future behavior to the extent possible, in order to effectively manage resources, successfully respond to threats from natural and human-induced environmental change, and capitalize on the opportunities â€" social, economic, security, and more â€" that such knowledge can bring. By continuously monitoring and exploring Earth, developing a deep understanding of its evolving behavior, and characterizing the processes that shape and reshape the environment in which we live, we not only advance knowledge and basic discovery about our planet, but we further develop the foundation upon which benefits to society are built. Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space (National Academies Press, 2018) provides detailed guidance on how relevant federal agencies can ensure that the United States receives the maximum benefit from its investments in Earth observations from space, while operating within realistic cost constraints. This short booklet, designed to be accessible to the general public, provides a summary of the key ideas and recommendations from the full decadal survey report.

Review of the U.S. Climate Change Science Program's Synthesis and Assessment Product on Temperature Trends in the Lower Atmosphere

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Author :
Publisher : National Academies Press
ISBN 13 : 030909674X
Total Pages : 74 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Review of the U.S. Climate Change Science Program's Synthesis and Assessment Product on Temperature Trends in the Lower Atmosphere by : National Research Council

Download or read book Review of the U.S. Climate Change Science Program's Synthesis and Assessment Product on Temperature Trends in the Lower Atmosphere written by National Research Council and published by National Academies Press. This book was released on 2005-06-10 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Climate Change Science Program (CCSP), established in 2002 to coordinate climate and global change research conducted in the United States and to support decision-making on climate-related issues, is producing twenty-one synthesis and assessment reports that address its research, observation, and decision-support needs. The first report, produced by the National Oceanic and Atmospheric Administration (NOAA) in coordination with other agencies, focuses on understanding reported differences between independently produced data sets of temperature trends for the surface through the lower stratosphere and comparing these data sets to model simulations. To ensure credibility and quality, NOAA asked the National Research Council to conduct an independent review of the report. The committee concluded that the report Temperature Trends in the Lower Atmosphere: Understanding and Reconciling Differences is a good first draft that covers an appropriate range of issues, but that it could be strengthened in a number of ways.

Frontiers in Decadal Climate Variability

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Publisher : National Academies Press
ISBN 13 : 0309444640
Total Pages : 92 pages
Book Rating : 4.3/5 (94 download)

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Book Synopsis Frontiers in Decadal Climate Variability by : National Academies of Sciences, Engineering, and Medicine

Download or read book Frontiers in Decadal Climate Variability written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-07-22 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many factors contribute to variability in Earth's climate on a range of timescales, from seasons to decades. Natural climate variability arises from two different sources: (1) internal variability from interactions among components of the climate system, for example, between the ocean and the atmosphere, and (2) natural external forcings, such as variations in the amount of radiation from the Sun. External forcings on the climate system also arise from some human activities, such as the emission of greenhouse gases (GHGs) and aerosols. The climate that we experience is a combination of all of these factors. Understanding climate variability on the decadal timescale is important to decision-making. Planners and policy makers want information about decadal variability in order to make decisions in a range of sectors, including for infrastructure, water resources, agriculture, and energy. In September 2015, the National Academies of Sciences, Engineering, and Medicine convened a workshop to examine variability in Earth's climate on decadal timescales, defined as 10 to 30 years. During the workshop, ocean and climate scientists reviewed the state of the science of decadal climate variability and its relationship to rates of human-caused global warming, and they explored opportunities for improvement in modeling and observations and assessing knowledge gaps. Frontiers in Decadal Climate Variability summarizes the presentations and discussions from the workshop.

Temperature Trends in the Lower Atmosphere

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Author :
Publisher : CreateSpace
ISBN 13 : 9781507809501
Total Pages : 180 pages
Book Rating : 4.8/5 (95 download)

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Book Synopsis Temperature Trends in the Lower Atmosphere by : U.s. Climate Change Science Program

Download or read book Temperature Trends in the Lower Atmosphere written by U.s. Climate Change Science Program and published by CreateSpace. This book was released on 2015-02-01 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: A primary objective of the U.S. Climate Change Science Program (CCSP) is to provide the best possible scientific information to support public discussion and government and private sector decision-making on key climate-related issues. To help meet this objective, the CCSP has identified an initial set of 21 synthesis and assessment products that address its highest priority research, observation, and decision-support needs. This Synthesis/Assessment Report, the first of the 21 Reports, focuses on understanding the causes of the reported differences between independently produced data sets of atmospheric temperature trends from the surface through the troposphere to the lower stratosphere. This topic is relevant to policy-makers because previous discrepancies between surface and tropospheric temperature observations challenged the correctness of climate model simulations and the reality of greenhouse gas-induced global warming.

Global Climate Change Impacts in the United States

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Publisher : Cambridge University Press
ISBN 13 : 0521144078
Total Pages : 193 pages
Book Rating : 4.5/5 (211 download)

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Book Synopsis Global Climate Change Impacts in the United States by : U.S. Global Change Research Program

Download or read book Global Climate Change Impacts in the United States written by U.S. Global Change Research Program and published by Cambridge University Press. This book was released on 2009-08-24 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes the science of climate change and impacts on the United States, for the public and policymakers.

Sustaining Ocean Observations to Understand Future Changes in Earth's Climate

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Publisher : National Academies Press
ISBN 13 : 0309466806
Total Pages : 151 pages
Book Rating : 4.3/5 (94 download)

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Book Synopsis Sustaining Ocean Observations to Understand Future Changes in Earth's Climate by : National Academies of Sciences, Engineering, and Medicine

Download or read book Sustaining Ocean Observations to Understand Future Changes in Earth's Climate written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-01-20 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ocean is an integral component of the Earth's climate system. It covers about 70% of the Earth's surface and acts as its primary reservoir of heat and carbon, absorbing over 90% of the surplus heat and about 30% of the carbon dioxide associated with human activities, and receiving close to 100% of fresh water lost from land ice. With the accumulation of greenhouse gases in the atmosphere, notably carbon dioxide from fossil fuel combustion, the Earth's climate is now changing more rapidly than at any time since the advent of human societies. Society will increasingly face complex decisions about how to mitigate the adverse impacts of climate change such as droughts, sea-level rise, ocean acidification, species loss, changes to growing seasons, and stronger and possibly more frequent storms. Observations play a foundational role in documenting the state and variability of components of the climate system and facilitating climate prediction and scenario development. Regular and consistent collection of ocean observations over decades to centuries would monitor the Earth's main reservoirs of heat, carbon dioxide, and water and provides a critical record of long-term change and variability over multiple time scales. Sustained high-quality observations are also needed to test and improve climate models, which provide insights into the future climate system. Sustaining Ocean Observations to Understand Future Changes in Earth's Climate considers processes for identifying priority ocean observations that will improve understanding of the Earth's climate processes, and the challenges associated with sustaining these observations over long timeframes.

Fiscal Year 2001 Climate Change Budget Authorization Request

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Publisher :
ISBN 13 :
Total Pages : 1636 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Fiscal Year 2001 Climate Change Budget Authorization Request by : United States. Congress. House. Committee on Science. Subcommittee on Energy and Environment

Download or read book Fiscal Year 2001 Climate Change Budget Authorization Request written by United States. Congress. House. Committee on Science. Subcommittee on Energy and Environment and published by . This book was released on 2001 with total page 1636 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Adequacy of Climate Observing Systems

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Publisher : National Academies Press
ISBN 13 : 030918455X
Total Pages : 65 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Adequacy of Climate Observing Systems by : National Research Council

Download or read book Adequacy of Climate Observing Systems written by National Research Council and published by National Academies Press. This book was released on 1999-03-01 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1997 Conference on the World Climate Research Programme to the Third Conference of the Parties of the United Nations Framework Convention on Climate Change concluded that the global capacity to observe the Earth's climate system is inadequate and is deteriorating worldwide. As a result, the chair of the subcommittee of the U.S. Global Change Research Program (USGCRP) requested a National Research Council study to assess the current status of the climate observing capabilities of the United States. This report focuses on existing observing systems for detection and attribution of climate change, with special emphasis on those systems with long time series.

The Potential Effects of Global Climate Change on the United States

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Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.3/5 (5 download)

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Book Synopsis The Potential Effects of Global Climate Change on the United States by :

Download or read book The Potential Effects of Global Climate Change on the United States written by and published by . This book was released on 1989 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Surface Temperature Reconstructions for the Last 2,000 Years

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Publisher : National Academies Press
ISBN 13 : 0309102251
Total Pages : 160 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Surface Temperature Reconstructions for the Last 2,000 Years by : National Research Council

Download or read book Surface Temperature Reconstructions for the Last 2,000 Years written by National Research Council and published by National Academies Press. This book was released on 2007-01-05 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to a request from Congress, Surface Temperature Reconstructions for the Last 2,000 Years assesses the state of scientific efforts to reconstruct surface temperature records for Earth during approximately the last 2,000 years and the implications of these efforts for our understanding of global climate change. Because widespread, reliable temperature records are available only for the last 150 years, scientists estimate temperatures in the more distant past by analyzing "proxy evidence," which includes tree rings, corals, ocean and lake sediments, cave deposits, ice cores, boreholes, and glaciers. Starting in the late 1990s, scientists began using sophisticated methods to combine proxy evidence from many different locations in an effort to estimate surface temperature changes during the last few hundred to few thousand years. This book is an important resource in helping to understand the intricacies of global climate change.

Our Changing Planet

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Publisher :
ISBN 13 :
Total Pages : 226 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Our Changing Planet by : Climate Change Science Program (U.S.)

Download or read book Our Changing Planet written by Climate Change Science Program (U.S.) and published by . This book was released on 2006 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Long-Term Climate Monitoring by the Global Climate Observing System

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 9401103232
Total Pages : 513 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Long-Term Climate Monitoring by the Global Climate Observing System by : Thomas R. Karl

Download or read book Long-Term Climate Monitoring by the Global Climate Observing System written by Thomas R. Karl and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Is the climate warming? Is the hydrological cycle intensifying? Is the climate becoming more variable or extreme? Is the chemical composition of the atmosphere changing? Is the solar irradiance constant? Answers to these questions are fundamental to understanding, predicting, and assessing climate on time scales ranging from weeks to a century. Atmospheric, oceanic, and environmental scientists have primarily relied on an ad-hoc collection of disparate environmental observational and data management systems to address these problems. But these systems were not designed to measure climate variations and, as a result, changes and variations of the earth system during the instrumental climate record is far from unequivocal. This book develops a framework from which a Global Climate Observing System, currently being discussed in international forums, can be implemented to monitor changes and variations of climate. Audience: Administrators, policy makers, professionals, graduate students, and others interested in learning how we can ensure a long-term climate record for application to national economic development and understanding ecosystem dynamics.