Hermann Lühr

Johannes Wicht

Stuart A. Gilder

Matthias Holschneider

This book addresses and reviews many of the still little understood questions related to the processes underlying planetary magnetic fields and their interaction with the solar wind. With focus on research carried out within the German Priority Program ”PlanetMag”, it also provides an overview of the most recent research in the field. Magnetic fields play an important role in making a planet habitable by protecting the environment from the solar wind. Without the geomagnetic field, for example, life on Earth as we know it would not be possible. And results from recent space missions to Mars and Venus strongly indicate that planetary magnetic fields play a vital role in preventing atmospheric erosion by the solar wind. However, very little is known about the underlying interaction between the solar wind and a planet’s magnetic field. The book takes a synergistic interdisciplinary approach that combines newly developed tools for data acquisition and analysis, computer simulations of planetary interiors and dynamos, models of solar wind interaction, measurement of ancient terrestrial rocks and meteorites, and laboratory investigations.

Planets, Moons and Solar Wind Interactions

Magnetic Fields in the Solar System

Malcolm Wray Dunlop

This open access book provides a comprehensive toolbox of analysis techniques for ionospheric multi-satellite missions. The immediate need for this volume was motivated by the ongoing ESA Swarm satellite mission, but the tools that are described are general and can be used for any future ionospheric multi-satellite mission with comparable instrumentation. In addition to researching the immediate plasma environment and its coupling to other regions, such a mission aims to study the Earth’s main magnetic field and its anomalies caused by core, mantle, or crustal sources. The parameters for carrying out this kind of work are examined in these chapters. Besides currents, electric fields, and plasma convection, these parameters include ionospheric conductance, Joule heating, neutral gas densities, and neutral winds.

Approaches for Deriving Ionospheric Parameters

Ionospheric Multi-Spacecraft Analysis Tools

Christoph Reigber

Peter Schwintzer

Jens Wickert

In the summer of 2000 the German geo-research satellite CHAMP was launched into orbit. Its innovative payload arrangement and the low initial orbit allow CHAMP to simultaneously collect and almost continuously analyse precise data relating to gravity and magnetic fields at low altitude. In addition, CHAMP also measures the neutral atmosphere and ionosphere using GPS techniques. Three years after launch, more than 200 CHAMP investigators and co-investigators from all over the world met at the GeoForschungsZentrum in Potsdam to present and discuss the results derived from the extensive data sets of the mission. The main outcome of this expert meeting is summarized in this volume. The book offers a comprehensive insight into the present status of the exploitation of CHAMP data for Earth system research and practical applications in geodesy, geophysics and meteorology.

Results from Three Years in Orbit

Earth Observation with CHAMP

Dieser Roman gibt die faszinierende Antwort darauf: Die Spur führt von einer geheimnisvollen Anlage im Harz und einer von dort mitgenommenen Kristallpyramide bis zu sensationellen Bildern aus dem Pyramidenzeitalter Ägyptens. Im Harz, an der ehemaligen DDR-Grenze, entdeckt Henning Wolf im Auftrag seiner Behörde eine eigenartige metallische Anlage. Dabei nimmt er eine kleine Kristallpyramide von einem Zaunpfosten mit und stellt sie zu Hause auf seinen Fernseher. Dort empfängt er nach einiger Zeit durch eine technische Zufallsschaltung einen sonderbaren Film, der den Pyramidenbau von Gizeh mittels utopischer Flugmaschinen zeigt, und die fertige Pyramide hat auch so eine Kristallspitze wie aus dem Harz. Henning Wolf untersucht nun diesen mysteriösen Fall und kommt im Zuge seiner Nachforschungen schließlich zu einer unglaublichen Erkenntnis. Der Roman wurde im Februar 2014 vom Autor überarbeitet und etwas erweitert, weil er auch als E-Book erscheinen soll.

Roman

Die Kristallpyramide

In 1995, the German Space Agency DARA selected the CHAllenging Minisatellite Payload (CHAMP) mission for development under a special support programme for the space industry in the new states of the unified Germany, with the Principal Investigator and his home institution GFZ Potsdam being ultimately responsible for the success of all mission phases. After three years of spacecraft manufactur ing and testing, the satellite was injected successfully into its final, near circular, almost polar and low altitude (450 km) orbit from the cosmodrome Plesetsk in Russia on July 15, 2000. After a nine month commissioning period during which all spacecraft systems and instruments were checked, calibrated and validated, the satellite has been delivering an almost uninterrupted flow of science data since May 2001. Since this date, all science data have been made available to the more than 150 selected co-investigator teams around the globe through an international Announcement of Opportunity. The scientific goals of the CHAMP mission are to gain a better understanding of dynamic processes taking place in the Earth's interior and in the space near Earth. These goals can be achieved by improved observation of the Earth's gravity and magnetic fields and their time variability with high-performance on-board instru mentation and by exploring the structure of the Earth's atmosphere and ionosphere through radio occultation measurements.

First CHAMP Mission Results for Gravity, Magnetic and Atmospheric Studies

Dieser Roman handelt von unerklärlichen Funden, die absolut nicht in das herkömmliche Bild der Archäologie und der Menschheitsentwicklung passen. Im Jahr 1947 öffnet Knut Wagner beim Erzabbau im Harz eine Höhle, in der er sonderbare Wandbeschriftungen mit fremdartigen Symbolen und einer ausländischen Schrift sieht. Außerdem findet er moderne Teile, die er überhaupt nicht kennt oder zuordnen kann. 60 Jahre später erbt sein kanadischer Neffe Robert Wagner unter anderem auch das Tagebuch von Knut Wagner und liest darin von den damaligen Funden. Er hält die beschriebenen Objekte für Compact Disc und Handyüberreste und ist sofort fasziniert von den Aufzeichnungen seines Onkels? Woher stammen diese zeitlich unmöglichen Stücke? Etwa von Außerirdischen oder einem Zeitreisenden? Robert Wagner hat die Zeit und die finanziellen Mittel, um die geheimnisvollen Entdeckungen seines Onkels aufzuklären.

Hermann Lühr

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