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On the satellite geodesy program at the Smithsonian Astrophysical Observatory.
Satellite geodesy program at Smithsonian Astrophysical Observatory, with emphasis on twelve Baker-Nunn tracking stations
Integration of space geodesy: a US National Geodetic Observatory
In the interest of improving the performance and efficiency of space geodesy a diverse group in the U.S., in collaboration with IGGOS, has begun to establish a unified National Geodetic Observatory (NGO).
GPS - Revolution in Surveying and Geodesy
Advancements in Global Positioning System (GPS) technology and its contributions to the evolution of surveying and geodesy are highlighted.
International VLBI Service for Geodesy and Astrometry 2012 Annual Report
This volume of reports is the 2012 Annual Report of the International VLBI Service for Geodesy and Astrometry (IVS). The individual reports were contributed by VLBI groups in the international geodetic and astrometric community who constitute the permanent components of IVS. The IVS 2012 Annual Report documents the work of the IVS components for the calendar year 2012, our fourteenth year of existence. The reports describe changes, activities, and progress ofthe IVS. Many thanks to all IVS components who contributed to this Annual Report. With the exception of the first section and parts of the last section (described below), the contents of this Annual Report also appear on the IVS Web site athttp:ivscc.gsfc.nasa.gov/publications/ar2012
International VLBI Service for Geodesy and Astrometry 2013 Annual Report
This volume of reports is the 2013 Annual Report of the International VLBI Service for Geodesy and Astrometry (IVS). The individual reports were contributed by VLBI groups in the international geodetic and astrometric community who constitute the permanent components of IVS. The IVS 2013 Annual Report documents the work of the IVS components for the calendar year 2013, our fifteenth year of existence. The reports describe changes, activities, and progress of the IVS. Many thanks to all IVS components who contributed to this Annual Report. With the exception of the first section and the last section, the contents of this Annual Report also appear on the IVS Web site at http://ivscc.gsfc.nasa.gov/publications/ar2013.
Crustal Dynamics Data Information System: NASA's Active Archive of Space Geodesy Data and Derived Products
Our vision is to provide first-class, robust archive, distribution, and real-time services for space geodesy data, products, and information to the global scientific research community.
International VLBI Service for Geodesy and Astrometry 2021+2022 Biennial Report
Since its creation in 1999, the International VLBI Service for Geodesy and Astrometry (IVS) has documented its progress and current status in the form of annual or biennial reports. The first sixteen years were recorded in the form of annual reports. Starting in 2015/2016 the cadence was changed to two years; hence, this Biennial Report marks eight years of using the two-yearly reporting scheme. The general structure of the reporting has remained stable over the years: the individual components of the IVS contributed short reports describing their numerous activities, progress, and future plans. Without the continued input from the VLBI groups of the international geodetic and astrometric community, this publication could not be compiled and the IVS itself would not be able to flourish. So, once again many thanks to all IVS components who contributed to this Biennial Report
Surface and Subsurface Geodesy Combined with Active Borehole Experimentation for the Advanced Characterization of EGS Reservoirs
We explore the utility of combining active downhole experimentation with borehole and surface geodesy to determine both the characteristics and evolving state of EGS reservoirs during stimulation through production. The study is divided into two parts. We demonstrate the feasibility of determining in situ reservoir characteristics of reservoir size, strain and fracture permeability and their dependence on feedbacks of stress and temperature using surface and borehole geodetic measurements (Part I). We then define the opportunity to apply the unique hydraulic pulse protocol (HPP) borehole tool to evaluate reservoir state. This can be accomplished by monitoring and co-inverting measured reservoir characteristics (from the HPP tool) with surface geodetic measurements of deformation, tilt and strain with continuous measurements of borehole-wall strain (via optical fiber and fiber Bragg gratings) and measured flow rates (Part II).
The use of resonant librating orbits in satellite geodesy
Libratory characteristics and harmonic effects of resonant orbiting satellites - geodesy
Laser technology for tracking and geodesy.
Lasers for tracking and geometric geodesy as used in Explorer and Geos satellite missions
Rotation invariant probability distributions on the surface of a sphere, with applications to geodesy
Gravity anomalies and linear transforms over rotating spheres treated as random process with spectrum analysis and applications for geodesy
Requirements for resonant satellites for gravimetric satellite geodesy.
Resonant satellites requirements for gravimetric satellite geodesy, discussing earth gravitational field spherical harmonic extension and tesseral harmonics from satellite perturbations
The use of resonant librating orbits in satellite geodesy.
Long term effects of longitude gravity harmonics on semimajor axis of circular orbits, discussing resonant librating orbits use in satellite geodesy
Resonant satellite geodesy.
Resonant satellite geodesy, determining geopotential constants in range from 8 to 15 with resonant and nonresonant satellite orbits
Space geodesy altimetry study
Tradeoff analysis on radar and laser space altimeter systems for sea surface geodesy
Error analyses of resonant orbits for geodesy
Error analyses in geopotential coefficient recovery when selecting resonant orbits for geodesy