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Future Satellite Gravimetry and Earth Dynamics

2007-01-25 Science
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Release : 2007-01-25
Genre : Science
Kind : eBook
Book Rating : 859/5 ( reviews)

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Book Synopsis Future Satellite Gravimetry and Earth Dynamics by : Jakob Flury

Download or read book Future Satellite Gravimetry and Earth Dynamics written by Jakob Flury. This book was released on 2007-01-25. Available in PDF, EPUB and Kindle. Book excerpt: New and more accurate techniques for satellite gravimetry will be available soon, with promising applications in Earth sciences. With this special issue the authors want to stimulate discussion among Earth scientists on objectives and preferences for future satellite gravimetry missions. This is an urgently needed discussion. Visions for follow-on missions have to be developed today, if they are to be realized within 10 years, given the required preparation time of such satellite missions.

Practical Realization of a Reference System for Earth Dynamics by Satellite Methods

1974 Geodetic satellites
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Release : 1974
Genre : Geodetic satellites
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Book Synopsis Practical Realization of a Reference System for Earth Dynamics by Satellite Methods by : Richard J. Anderle

Download or read book Practical Realization of a Reference System for Earth Dynamics by Satellite Methods written by Richard J. Anderle. This book was released on 1974. Available in PDF, EPUB and Kindle. Book excerpt: Observations of artifical earth satellites provide a means of establishing an origin, orientation, scale and control points for a coordinate system. Neither existing data nor future data are likely to provide significant information on the .001'' angle provided data to about .01'' accuracy on the pole position and to possibly a meter on the origin of the system and for control points. The longitude origin is essentially arbitrary. While these accuracies permit acquisition of useful data on tides and polar motion through dynamic analyses, they are inadequate for determination of crustal motion or significant improvement in polar motion. The limitations arise from gravity, drag and radiation forces on the satellites as well as from instrument errors. Improvements in laser equipment and the launch of the dense LAGEOS satellite in an orbit high enough to suppress significant gravity and drag errors will permit determination of crustal motion and more accurate, higher frequency, polar motion. (Modified author abstract).

Satellite Gravity and the Geosphere

1997-10-02 Science
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Release : 1997-10-02
Genre : Science
Kind : eBook
Book Rating : 922/5 ( reviews)

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Book Synopsis Satellite Gravity and the Geosphere by : National Research Council

Download or read book Satellite Gravity and the Geosphere written by National Research Council. This book was released on 1997-10-02. Available in PDF, EPUB and Kindle. Book excerpt: For the past three decades, it has been possible to measure the earth's static gravity from satellites. Such measurements have been used to address many important scientific problems, including the earth's internal structure, and geologically slow processes like mantle convection. In principle, it is possible to resolve the time-varying component of the gravity field by improving the accuracy of satellite gravity measurements. These temporal variations are caused by dynamic processes that change the mass distribution in the earth, oceans, and atmosphere. Acquisition of improved time-varying gravity data would open a new class of important scientific problems to analysis, including crustal motions associated with earthquakes and changes in groundwater levels, ice dynamics, sea-level changes, and atmospheric and oceanic circulation patterns. This book evaluates the potential for using satellite technologies to measure the time-varying component of the gravity field and assess the utility of these data for addressing problems of interest to the earth sciences, natural hazards, and resource communities.

Remote Sensing by Satellite Gravimetry

2021-01-19 Science
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Release : 2021-01-19
Genre : Science
Kind : eBook
Book Rating : 081/5 ( reviews)

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Book Synopsis Remote Sensing by Satellite Gravimetry by : Thomas Gruber

Download or read book Remote Sensing by Satellite Gravimetry written by Thomas Gruber. This book was released on 2021-01-19. Available in PDF, EPUB and Kindle. Book excerpt: Over the last two decades, satellite gravimetry has become a new remote sensing technique that provides a detailed global picture of the physical structure of the Earth. With the CHAMP, GRACE, GOCE and GRACE Follow-On missions, mass distribution and mass transport in the Earth system can be systematically observed and monitored from space. A wide range of Earth science disciplines benefit from these data, enabling improvements in applied models, providing new insights into Earth system processes (e.g., monitoring the global water cycle, ice sheet and glacier melting or sea-level rise) or establishing new operational services. Long time series of mass transport data are needed to disentangle anthropogenic and natural sources of climate change impacts on the Earth system. In order to secure sustained observations on a long-term basis, space agencies and the Earth science community are currently planning future satellite gravimetry mission concepts to enable higher accuracy and better spatial and temporal resolution. This Special Issue provides examples of recent improvements in gravity observation techniques and data processing and analysis, applications in the fields of hydrology, glaciology and solid Earth based on satellite gravimetry data, as well as concepts of future satellite constellations for monitoring mass transport in the Earth system.

Global Change and Future Earth

2018-10-18 Science
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Release : 2018-10-18
Genre : Science
Kind : eBook
Book Rating : 039/5 ( reviews)

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Book Synopsis Global Change and Future Earth by : Tom Beer

Download or read book Global Change and Future Earth written by Tom Beer. This book was released on 2018-10-18. Available in PDF, EPUB and Kindle. Book excerpt: Global Change and Future Earth is derived from the work of several programs of the International Union of Geodesy and Geophysics (IUGG). It demonstrates how multi- and inter-disciplinary research outputs from the geoscience community can be applied to tackle the physical and societal impacts of climate change and contribute to the Future Earth programme of the International Council for Science. The volume brings together an international team of eminent researchers to provide authoritative reviews on the wide-ranging ramifications of climate change spanning eight key themes: planetary issues; geodetic issues; the Earth's fluid environment; regions of the Earth; urban environments; food security; and risk, safety and security; and climate change and global change. Covering the challenges faced by urban and rural areas, and in both developed and developing counties, this volume provides an important resource for a global audience of graduate students and researchers from a broad range of disciplines, as well as policy advisors and practitioners.

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