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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309067839
Category : Social Science
Languages : en
Pages : 380
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Book Description
World human population is expected to reach upwards of 9 billion by 2050 and then level off over the next half-century. How can the transition to a stabilizing population also be a transition to sustainability? How can science and technology help to ensure that human needs are met while the planet's environment is nurtured and restored? Our Common Journey examines these momentous questions to draw strategic connections between scientific research, technological development, and societies' efforts to achieve environmentally sustainable improvements in human well being. The book argues that societies should approach sustainable development not as a destination but as an ongoing, adaptive learning process. Speaking to the next two generations, it proposes a strategy for using scientific and technical knowledge to better inform future action in the areas of fertility reduction, urban systems, agricultural production, energy and materials use, ecosystem restoration and biodiversity conservation, and suggests an approach for building a new research agenda for sustainability science. Our Common Journey documents large-scale historical currents of social and environmental change and reviews methods for "what if" analysis of possible future development pathways and their implications for sustainability. The book also identifies the greatest threats to sustainabilityâ€"in areas such as human settlements, agriculture, industry, and energyâ€"and explores the most promising opportunities for circumventing or mitigating these threats. It goes on to discuss what indicators of change, from children's birth-weights to atmosphere chemistry, will be most useful in monitoring a transition to sustainability.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309067839
Category : Social Science
Languages : en
Pages : 380
Get Book Here
Book Description
World human population is expected to reach upwards of 9 billion by 2050 and then level off over the next half-century. How can the transition to a stabilizing population also be a transition to sustainability? How can science and technology help to ensure that human needs are met while the planet's environment is nurtured and restored? Our Common Journey examines these momentous questions to draw strategic connections between scientific research, technological development, and societies' efforts to achieve environmentally sustainable improvements in human well being. The book argues that societies should approach sustainable development not as a destination but as an ongoing, adaptive learning process. Speaking to the next two generations, it proposes a strategy for using scientific and technical knowledge to better inform future action in the areas of fertility reduction, urban systems, agricultural production, energy and materials use, ecosystem restoration and biodiversity conservation, and suggests an approach for building a new research agenda for sustainability science. Our Common Journey documents large-scale historical currents of social and environmental change and reviews methods for "what if" analysis of possible future development pathways and their implications for sustainability. The book also identifies the greatest threats to sustainabilityâ€"in areas such as human settlements, agriculture, industry, and energyâ€"and explores the most promising opportunities for circumventing or mitigating these threats. It goes on to discuss what indicators of change, from children's birth-weights to atmosphere chemistry, will be most useful in monitoring a transition to sustainability.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309163293
Category : Science
Languages : en
Pages : 157
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Book Description
Geodesy is the science of accurately measuring and understanding three fundamental properties of Earth: its geometric shape, its orientation in space, and its gravity field, as well as the changes of these properties with time. Over the past half century, the United States, in cooperation with international partners, has led the development of geodetic techniques and instrumentation. Geodetic observing systems provide a significant benefit to society in a wide array of military, research, civil, and commercial areas, including sea level change monitoring, autonomous navigation, tighter low flying routes for strategic aircraft, precision agriculture, civil surveying, earthquake monitoring, forest structural mapping and biomass estimation, and improved floodplain mapping. Recognizing the growing reliance of a wide range of scientific and societal endeavors on infrastructure for precise geodesy, and recognizing geodetic infrastructure as a shared national resource, this book provides an independent assessment of the benefits provided by geodetic observations and networks, as well as a plan for the future development and support of the infrastructure needed to meet the demand for increasingly greater precision. Precise Geodetic Infrastructure makes a series of focused recommendations for upgrading and improving specific elements of the infrastructure, for enhancing the role of the United States in international geodetic services, for evaluating the requirements for a geodetic workforce for the coming decades, and for providing national coordination and advocacy for the various agencies and organizations that contribute to the geodetic infrastructure.
Author: Maarten Hooijberg
Publisher: Springer Science & Business Media
ISBN: 3540682252
Category : Science
Languages : en
Pages : 452
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Book Description
Surveying a Century Ago As it was based on the principles of geometry and trigonometry, surveying may be may be looked upon as a branch of practical mathematics. Hence, it was necessary that land surveyors and hydrographers should have a fair general knowledge, not only of these subjects, but also of all the subjects comprised by the term mathemat ics. In addition, the knowledge of mathematics required in ordinary chain surveying and levelling was not very extensive but in geodetical work, the highest mathematical ability and great organising power were required for a proper conception and supervision of the operations (Threlfall, 1940). Only small area of a few hundred square kilometres can be accurately mapped and surveyed without a frame work, since no difficulty is encountered because of Earth-curvature. In the past, especially in hydrography due to the type of work, surveying was carried out on the principles of ordinary practice, but in a very rough man ner, rapidity of execution being of paramount importance, the permissible error was sometimes large. The relative positions of the main surface features were obtained by aid of portable instruments, such as sextants and lead lines, tide poles, and logships. Sketching, just like military surveying was often filling in the smaller detail. In contrary, survey works done by the national mapping agencies (NMAs) were of a higher-level, and comprised the delimitation of boundaries as well as topographical surveys.
Author: Yehuda Bock
Publisher: Springer Science & Business Media
ISBN: 1461571111
Category : Science
Languages : en
Pages : 466
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Book Description
Space geodesy has evolved in the last twenty years into one of the most exciting disciplines in the earth sciences. This development is due to a large extent to the versatility of applications provided by the radio interferometric technique called Global Positioning System or GPS. Appropriately, Symposium 102: Global Positioning System: An Overview was held at the 125th Anniversary Meeting of the International Association of Geodesy in August, 1989. A broad review of GPS geodesy, achievements to date and the prospects for future study and application was presented. Papers included in this volume are grouped as follows: - Static and Geodynamic Positioning; - Orbit Determination Optimization and Design Dynamic; - Kinematic GPS/INS Radio Tracking Systems A useful reference for any researcher or student of space geodesy.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 440
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Book Description
Author: Fritz K. Brunner
Publisher: Springer Science & Business Media
ISBN: 3662037149
Category : Science
Languages : en
Pages : 407
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Book Description
IAG Scientific Assembly, Rio de Janeiro, Brazil, September, 3-9, 1997
Author: Paul Tregoning
Publisher: Springer Science & Business Media
ISBN: 3540493506
Category : Science
Languages : en
Pages : 922
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Book Description
IAG Symposium, Cairns, Australia, 22-26 August, 2005
Author: Jan Van Sickle
Publisher: CRC Press
ISBN: 1000900924
Category : Technology & Engineering
Languages : en
Pages : 502
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Book Description
Based on the success of the previous four editions, this new fifth edition includes Global Navigation Satellite Systems (GNSS) in the title, which is part of the Global Positioning System (GPS). The book provides an introduction to the concepts needed to understand and use GPS and GNSS. Neither simplistic nor overly technical, the new edition is thoroughly updated with the changes in GPS and GNSS hardware, software, and procedures. It describes why modern GNSS positions can be acquired with more certainty, increased stability, and improved tracking in obstructed areas. The book offers a rare combination of knowledge and skills that every land surveyor needs to master. FEATURES • Written by a well-known land surveyor with extensive knowledge in satellite navigation and the ability to explain difficult concepts to a broad audience • Includes a useful set of self-assessment exercises and explanations at the end of each chapter • Takes a practical approach to the rapid and continuous technological progress in GNSS • Provides the latest information on GNSS and GPS • Minimizes the reliance on mathematical explanations and maximizes the use of illustrations and examples that allow the reader to visualize and grasp the concepts Intended for both novices and professionals in the field, this book explains broad concepts in an accessible way. It provides support to undergraduate students in Civil Engineering, Geomatic Engineering, and those taking introductory GPS and GIS Mapping Courses, as well as professionals in the field, a practical approach to GPS and GNSS technology.
Author: Herbert J. Kramer
Publisher: Springer Science & Business Media
ISBN: 3642976786
Category : Science
Languages : en
Pages : 989
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Book Description
"In sum, I believe that every organization active in remote sensing will find Dr. Kramer's book to be an essential addition to its technical library, and I believe that every serious practitioner of remote sensing will find it a permanently useful and vital reference." John H. McElroy, Dean of Engineering, The University of Texas and Chair of the Committee on Earth studies of the U.S. National Research Council's Space Studies Board)
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 260
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Book Description
