Satellite Gravity and the Geosphere

Satellite Gravity and the Geosphere PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309174767
Category : Science
Languages : en
Pages : 126

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Book Description
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.

Satellite Gravity and the Geosphere

Satellite Gravity and the Geosphere PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309174767
Category : Science
Languages : en
Pages : 126

Get Book

Book Description
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.

Atmospheric Effects in Space Geodesy

Atmospheric Effects in Space Geodesy PDF Author: Johannes Böhm
Publisher: Springer Science & Business Media
ISBN: 3642369324
Category : Science
Languages : en
Pages : 244

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Book Description
Various effects of the atmosphere have to be considered in space geodesy and all of them are described and treated consistently in this textbook. Two chapters are concerned with ionospheric and tropospheric path delays of microwave and optical signals used by space geodetic techniques, such as the Global Navigation Satellite Systems (GNSS), Very Long Baseline Interferometry (VLBI), or Satellite Laser Ranging (SLR). It is explained how these effects are best reduced and modelled to improve the accuracy of space geodetic measurements. Other chapters are on the deformation of the Earth’s crust due to atmospheric loading, on atmospheric excitation of Earth rotation, and on atmospheric effects on gravity field measurements from special satellite missions such as CHAMP, GRACE, and GOCE. All chapters have been written by staff members of the Department of Geodesy and Geoinformation at TU Wien who are experts in the particular fields.

The Drift of a 24-hour Equatorial Satellite Due to an Earth Gravity Field Through 4th Order

The Drift of a 24-hour Equatorial Satellite Due to an Earth Gravity Field Through 4th Order PDF Author: C. A. Wagner
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 48

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Book Description


Global Gravity Field Modeling from Satellite-to-Satellite Tracking Data

Global Gravity Field Modeling from Satellite-to-Satellite Tracking Data PDF Author: Majid Naeimi
Publisher:
ISBN: 9783319499420
Category : Environmental sciences
Languages : en
Pages : 168

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Book Description


The Earth's Longitude Gravity Field as Sensed by the Drift of Three Synchronous Satellites

The Earth's Longitude Gravity Field as Sensed by the Drift of Three Synchronous Satellites PDF Author: Carl A. Wagner
Publisher:
ISBN:
Category : Astronautics in geodesy
Languages : en
Pages : 116

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Book Description


Earth Gravity Field from Space - from Sensors to Earth Sciences

Earth Gravity Field from Space - from Sensors to Earth Sciences PDF Author: G. Beutler
Publisher: Springer Science & Business Media
ISBN: 9401713332
Category : Science
Languages : en
Pages : 446

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Book Description
Volume resulting from an ISSI Workshop, 11-15 March 2002, Bern, Switzerland

Global Gravity Field and Its Temporal Variations

Global Gravity Field and Its Temporal Variations PDF Author: Richard H. Rapp
Publisher: Springer Science & Business Media
ISBN: 3642611400
Category : Science
Languages : en
Pages : 274

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Book Description
In July 1995 the XXI General Assembly of the International Union of Geodesy and Geophysics was held in Boulder, Colorado. At this meeting the International Association of Geodesy (lAG) organized a number of symposia to discuss scientific developments and future directions in a number of areas. One of these symposia was G3, Global Gravity Field and Its Temporal Variations. This symposium consisted of four invited and 36 contributed papers. The contributed papers were given as oral or poster presentations. This proceedings volume represents the written contributions of the four invited papers (appearing as the first four papers in the volume) and 19 additional papers. The authors were asked to limit the length of their paper to approximately ten pages, which, in some cases, did limit what an author wanted to say. The papers in this volume have been placed in the same order as they were presented at the ruGG meeting. A key theme of the symposium is given in the paper by Nerem, Klosko, and Pavlis where they discuss applications of gravity field information in geodesy and oceanography. The significant achievements in determining the gravity field in the ocean areas from satellite altimeter data is discussed by Sandwell, Yale, McAdoo, and Smith. A review of time changes of the Earth's gravity field from terrestrial measurements is given by Lambert et aI. , and from satellite perturbation techniques by Eanes and Bettadpur. A description of new geopotential models is given in the paper by Tapley et al.

System Earth via Geodetic-Geophysical Space Techniques

System Earth via Geodetic-Geophysical Space Techniques PDF Author: Frank M. Flechtner
Publisher: Springer Science & Business Media
ISBN: 364210228X
Category : Science
Languages : en
Pages : 587

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Book Description
Our planet is currently experiencing substantial changes due to natural phen- ena and direct or indirect human interactions. Observations from space are the only means to monitor and quantify these changes on a global and long-term p- spective. Continuous time series of a large set of Earth system parameters are needed in order to better understand the processes causing these changes, as well as their interactions. This knowledge is needed to build comprehensive Earth s- tem models used for analysis and prediction of the changing Earth. Geodesy and geophysics contribute to the understanding of system Earth through the observation of global parameter sets in space and time, such as tectonic motion, Earth surface deformation, sea level changes and gravity, magnetic and atmospheric elds. In the framework of the German geoscience research and development p- gramme GEOTECHNOLOGIEN, research projects related to the theme “Observing the Earth System from Space” have been funded within two consecutive phases since 2002, both covering 3 years. The projects address data analysis and model development using the satellite missions CHAMP, GRACE, GOCE and comp- mentary ground or airborne observations. The results of the rst phase projects have been published in the Springer book, titled “Observation of the Earth System from Space”, edited by Flury, Rummel, Reigber, Rothacher, Boedecker and Schreiber in 2006. The present book, titled “System Earth via Geodetic-Geophysical Space Techniques” summarizes in 40 scienti c papers the results of eight coordinated research projects funded in the second phase of this programme (2005–2008).

The Gravitational Field Environment of an Earth Satellite

The Gravitational Field Environment of an Earth Satellite PDF Author: David Adamson
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 124

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Book Description


Satellite Altimetry and Earth Sciences

Satellite Altimetry and Earth Sciences PDF Author: Lee-Lueng Fu
Publisher: Elsevier
ISBN: 0080516580
Category : Science
Languages : en
Pages : 463

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Book Description
The new level of precision and global coverage provided by satellite altimetry is rapidly advancing studies of ocean circulation. It allows for new insights into marine geodesy, ice sheet movements, plate tectonics, and for the first time provides high-resolution bathymetry for previously unmapped regions of our watery planet and crucial information on the large-scale ocean features on intra-season to interannual time scales. Satellite Altimetry and Earth Sciences has integrated the expertise of the leading international researchers to demonstrate the techniques, missions, and accuracy of satellite altimetry, including altimeter measurements, orbit determination, and ocean circulation models. Satellite altimetry is helping to advance studies of ocean circulation, tides, sea level, surface waves and allowing new insights into marine geodesy. Satellite Altimetry and Earth Sciences provides high resolution bathymetry for previously unmapped regions of our watery planet. Satellite Altimetry and Earth Sciences is for a very broad spectrum of academics, graduate students, and researchers in geophysics, oceanography, and the space and earth sciences. International agencies that fund satellite-based research will also appreciate the handy reference on the applications of satellite altimetry.