IAGA in Toulouse - Division V Symposium

IDV01 Geomagnetism and geospace climatology (Divisions V and III)

Long-term variations in the magnetic environment of the Earth due, for example, to solar variability and secular change in the Earth's core-generated dynamo may be seen in geomagnetic and space physics data records. In this session we invite contributions that illustrate these changes and provide insights into the evolution of geospace. Contributions that address the consequences of the evolution of geospace are also welcomed.

Convener: A W P Thomson, British Geological Survey, West Mains Road, Edinburgh EH9 3LA, UK; tel +44 131 650 0257; fax +44 131 668 4368; e-mail: a.thomson@bgs.ac.uk
Co-conveners: K.-H. Glassmeier, Institute Geophysik & Meteorology, Braunschweig, Germany; M. Nose, Kyoto University, Japan

IDV02 Magnetic anomalies at low lattitude (Division V and IDCDC)

Analysis of magnetic data has been complicated by the changing inclination of the main geomagnetic field. Interpretational tools developed for the analysis of high latitude magnetic anomalies are not directly applicable to low-latitudes; the analysis of low latitude magnetic anomalies needs special attention. Papers dealing with magnetic anomaly map generation, analysis and interpretation of low latitude and equatorial regions are sought. Papers dealing with magnetic anomalies derived from ground based, aeromagnetic, satellite based or marine magnetic data are welcome.

Convener: Mita Rajaram, Indian Institute of Geomagnetism, New Panvel (W), Navi Mumbai 410218, India; tel +91 22 27480760; fax +91 22 27480762; e-mail mita@iigs.iigm.res.in
Co-conveners : Y. Cohen, IPGP, France; Carlos Mendonca, IAG, Brazil

IDV03 Swarm - Earth's magnetic field and environment explorers

The European Space Agency, ESA, has approved the mission Swarm - Earth's Magnetic Field and Environment Explorers for full implementation and launch in 2009 as Explorer number 5 in its Living Planet Programme. During the 4-year operational phase the Swarm mission will complete the International Decade of Geopotential Field Research that was announced in a resolution adopted by IAGA and IUGG and initiated so successfully with the launch of the Danish satellite Ørsted in February 1999, followed by the German satellite, CHAMP and the Argentinean satellite, SAC-C in 2000.

The objective of the Swarm mission is to provide the best ever survey of the geomagnetic field and its temporal evolution, in order to gain new insights into the Earth system by improving our understanding of the Earth's interior and its electrodynamic environment. After release from a single launcher, a side-by-side flying lower pair of satellites at an initial altitude of 450 km and a single higher satellite at 530 km will form the Swarm constellation. High-precision and high-resolution measurements of the strength, direction and variation of the magnetic field, complemented by precise navigation, accelerometer and electric field measurements, will provide the necessary observations that are required to separate and model various sources of the geomagnetic field.

This short session will be dedicated to a suite of invited talks to provide the science community with adequate information about the mission, the science objectives, the instruments, and the expected data products that will be made available to the users.

Convener: E. Friis-Christensen, Danish Space Research Institute,Juliane Maries Vej 30DK-2100 Copenhagen OE, Denmark; tel: +45 35325707; fax: +45 35362475; e-mail: efc@dsri.dk
Co-convener: R. Haagmans, ESA, ESTEC, Noordwijk, Netherlands

GAV01 Magnetic observatories: measurements, quality analysis, and data dissemination

High-quality data from magnetic observatories and repeat stations are crucial to the understanding of the evolution of the geomagnetic field on a variety of time-scales from seconds to centuries. This Symposium aims to bring together those who are involved in all aspects of data collection as well as those researchers analyzing and interpreting these measurements.

New contributions on magnetic observatory instrumentation, data collection and measurement practices, as well as the scientific evaluation of these observations will be especially welcomed.

Convener: P B Kotzé, Hermanus Magnetic Observatory, Box 32, Hermanus 7200, South Africa; Tel. +27 28 3121196, Fax. +27 28 3122039; e-mail: pkotze@hmo.ac.za
Co-conveners: P Hejda, Geophysical Institute, Prague, Czech Republic; S Macmillan, British Geological Survey, Edinburgh, UK; M Mandea, Institute de Physique du Globe, Paris, France.

GAV02 Indices and algorithms for detecting geomagnetic and space weather events

Up until now SSC, SFE and bays, etc. have been catalogued by experts either, visually analysing the records, or using semi automatic data processing techniques. Due to current demands by users for near real-time analysis of these data, new automatic processes and signal analysis techniques are being developed. The aim of this symposium is to provide the opportunity for the international research community to review the progress and suggest future directions in these investigations of event detection. Papers describing techniques to detect geomagnetic events on regional or global-scale, using ground and/or satellite data are especially welcome. Defining the distinctive signatures of the geomagnetic events which are significant in the solar and geophysical variability and those having applications in space-weather predictions would be of particular interest. Papers related to the automatic or quasi-automatic derivation and use of geomagnetic indices are also welcome.

Convener: J.J. Curto (Spain), Observatori de l'Ebre CSIC-URL, Horta Alta, 38, 43520 Roquetes (Sapin); tel +34 977 500511; fax +34 977 504660; e-mail: jjcurto@obsebre.es
Co-conveners: M. Kunitake, Japan; E. Clarke, UK; R. Lukianova, Russia

GAV03 High resolution marine magnetics: new techniques and experiments

All contributions addressing recent advances in marine magnetics are welcome. Presentations of new techniques, including a variety of newly developed instruments (sea-surface or deep-sea operated, scalar or vector) and the methods required to interpret their data are encouraged. Results of recent experiments designed to investigate, among others, the magnetic structure and properties of the oceanic crust, the magnetic signature of faults and hydrothermal activity, the magnetization of seamounts, the time variations of the geomagnetic field, the high resolution dating of the seafloor, would be particularly appreciated. Marine magnetic studies about continental margins or in shallow water environments are also very welcome.

Convener: J. Dyment, Institut de Physique du Globe, 4 place Jussieu, 75005 Paris, France;
tel +33 1 44 27 28 21; fax +33 1 44 27 99 69; e-mail: jdy@ipgp.jussieu.fr
Co-conveners: S.M. Lee, Seoul National University, Republic of Korea; T. Fujiwara, Japan Marine Science and Technology Center, Japan

GAV04 World Magnetic Anomaly Map: anomaly definition and calculation

The first edition of the global digital magnetic anomaly map is aimed to represent such a component of the Earth's magnetic field that is caused by the magnetized uppermost part of the lithosphere, as if it were observed a few km above the Earth's surface. The anomalies are supposed to be calculated using as similar principles as possible everywhere. Further, the definition and anomaly calculation should allow transforming the digital map to another reference system in future. Well knowing the difficulties caused by temporal variation of the recorded magnetic field and great heterogeneity in quality and information density of available data sets the Task Force of WDMAM of IAGA invites papers to present anomaly definitions and practical calculation methods for major data sets. Poster presentations are invited to display major anomaly sets reduced and compiled by controlled methods.

Convener: Juha V. Korhonen, Geological Survey of Finland, P.O.Box 96, FI-02151 Espoo, Finland; Phone. +358 20 550 2275; Fax +358 20 550 12; e-mail: juha.korhonen@gtk.fi
Co-conveners: Dhananjay Ravat , Southern Illinois University C'dale, USA; Colin Reeves, ITC, The Netherlands,

GAV05 International Decade for Geopotential Research: Advances in understanding the geomagnetic field

The 'Decade of Geopotential Research', inaugurated with the launch of Ørsted and Sunsat in February of 1999, and continuing with CHAMP, is an international effort to promote and coordinate a continuous monitoring of the geopotential (magnetic and gravity) field variability in the near-Earth environment. Following 20 years without satellite magnetic coverage, the first seven years of the 'Decade of Geopotential Research' have provided the geomagnetic community with a wealth of high quality data from several near-Earth satellites. Combined with ground based data, this has opened numerous opportunities for studies ranging from core flow, mantle conductivity, lithospheric composition and ocean flow to the dynamics of ionospheric and magnetospheric currents. Contributions to these topics and the new satellite missions are solicited for this session.

Convener: B. Langlais, Laboratoire de Planétologie et Géodynamique de Nantes, CNRS UMR 6112, Faculté des Sciences et Techniques, Université de Nantes, 2 rue de la Houssinière, 44322 Nantes cedex, France; tel +33 (0) 251 125 497 ; fax +33 (0) 251 125 268 ; Benoit.Langlais@chimie.univ-nantes.fr
Co-convener: K. Whaler, Institute of Earth Science, University of Edinburgh, UK; S. Maus, GeoForschungsZentrum, Potsdam, Germany; P. Stauning, Danish Meteorological Institute, Copenhagen, Denmark.

GAV06 Uses and applications of geomagnetic field models

The aim of this symposium is to bring together users and modellers so as to foster better interaction and mutual understanding. Have YOU an application that modellers have not thought about? What do users want from models of the internal and external fields and what are the problems users have in applying models? How does truncation level affect you? Do you have a need for a truly continuous, rather than piece-wise continuous, internal model? Would you prefer to use a more accurate model, even if it meant waiting to get some model parameters (such as Dst) which are available only after considerable delay? We need to hear from YOU about YOUR problems/preferences. This session is for users and modelers alike, and we specifically encourage examples of the techniques used in the application of these models to benefit science and society. We welcome examples by users from both the external and internal geomagnetic communities.

Convener: F.J. Lowes, Physics Department, University of Newcastle, Newcastle upon Tyne, NE1 7RU, UK; tel +44(0)1912227413; fax +44(0)2227361; f.j.lowes@ncl.ac.uk
Co-convener: M.A.Shea, CSPAR, University of Alabama in Huntsville, Huntsville, USA.

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