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Probing space to understand Earth
Progress in the geosciences has often followed the same fundamental paradigm for about two centuries: Earth’s present is the key to understanding its...
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Evaluation of Sentinel 1–derived and open-access digital elevation model products in mountainous areas of Western Ghats, India
Digital elevation model, acquired and generated using manual field survey, stereo pairs, interferometric synthetic aperture radar (InSAR) and light...
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Gravity Field and Figure of the Earth
The shape of the Earth has always been a question of importance to humanity, with philosophical and religious aspects as well as practical ones,...
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Methods for Determination and Calculation of Deflections of the Vertical
This Chapter is devoted to determination of deflections of the vertical (DOV). A general overview of DOV determination methods on a moving base is...
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The Mars system revealed by the Martian Moons eXploration mission
Japan Aerospace Exploration Agency (JAXA) plans a Phobos sample return mission (MMX: Martian Moons eXploration). In this study, we review the related...
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Earth-affecting solar transients: a review of progresses in solar cycle 24
This review article summarizes the advancement in the studies of Earth-affecting solar transients in the last decade that encompasses most of solar...
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Optimized scheduling of VLBI UT1 intensive sessions for twin telescopes employing impact factor analysis
Daily Very Long Baseline Interferometry (VLBI) intensive measurements make an important contribution to the regular monitoring of Earth rotation...
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Co-location of space geodetic techniques carried out at the Geodetic Observatory Wettzell using a closure in time and a multi-technique reference target
The quality of the links between the different space geodetic techniques (VLBI, SLR, GNSS and DORIS) is still one of the major limiting factors for...
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Atmospheric modeling for co-located VLBI antennas and twin telescopes
In the next generation VLBI network, the VLBI global observing system (VGOS), there will be several twin telescopes, i.e. stations equipped with a...
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Recent Activities of the GGOS Standing Committee on Performance Simulations and Architectural Trade-Offs (PLATO)
The Standing Committee on Performance Simulations and Architectural Trade-Offs (PLATO) was established by the Bureau of Networks and Observations of...
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Middle Atmosphere Variability and Model Uncertainties as Investigated in the Framework of the ARISE Project
The middle atmosphere (from about 10–110 km altitude) is a highly variable environment at seasonal and sub-seasonal timescales. This variability...
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Geodetic VLBI with an artificial radio source on the Moon: a simulation study
We perform extensive simulations in order to assess the accuracy with which the position of a radio transmitter on the surface of the Moon can be...
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The SLR/LLR Double-Difference Baseline
Here we present a novel SLR double-difference approach with GNSS satellites. It is shown how forming double-differences of SLR measurements between...
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From Data Modeling to Algorithmic Modeling in the Big Data Era: Water Resources Security in the Asia-Pacific Region under Conditions of Climate Change
Advances in computing technologies allow machine learning algorithms to automatically, repeatedly and quickly apply complex mathematical calculations...
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Introduction
The content and concept of this book is generally integrated into the applied field of global geodesy.
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Coordination, Communication, and Automation for the GGOS
GGOS was established in July 2003 (for the following also see (Rothacher et al. n.d.)). It is the definition of an observing system of the IAG. In...
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Controlling a VLBI System Remotely
The idea behind controlling systems remotely is quite comprehensible with the techniques previously described to control systems locally. As all...
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Identifying optimal tag-along station locations for improving VLBI Intensive sessions
Very Long Baseline Interferometry (VLBI) is a unique space-geodetic technique capable of direct observation of the Earth’s phase of rotation, namely...
