Geomagnetic field modelling using satellite data
نویسندگان
چکیده
منابع مشابه
Modelling Geomagnetic Activity Data
Strong geomagnetic activity is a hazard to electronics and electric power facilities. Assessment of the actual geomagnetic activity level from local magnetometer monitoring therefore is of importance for risk assessment but also in earth sciences and exploration. Wavelet based signal processing methods are applied to extract meaningful information from magnetic field time series in a noisy envi...
متن کاملThe Geomagnetic Field: Preparing for the Swarm Multi-Satellite Mission
10.30 Introduction – Richard Holme 10.35 The Swarm Magnetic Mission, Roger Haagmans, ESA 11.00 Achievements in Characterising Ionospheric and Magnetospheric Fields, Hermann Lühr, GFZ Potsdam. 11.30 Modelling the recent geomagnetic field using satellite and ground magnetic observations – lessons learned from Ørsted and CHAMP and prospects for SWARM, Nils Olsen, DTU Space, Copenhagen. 12.00 Oppor...
متن کاملUsing Geomagnetic Field for Indoor Positioning
Geomagnetic field variation in support for indoor positioning and navigation has recently attracted considerable interest because of the advantage that technology based on the geomagnetic field has no infrastructure needs. Test using sensitive magnetometers has confirmed that it is possible to use geomagnetic field information for positioning purposes, however there are still issues to be addre...
متن کاملInvestigation of a secular variation impulse using satellite data: The 2003 geomagnetic jerk
Observatory monthly means provide an excellent opportunity to study the temporal changes of the magnetic field at a given location. Unfortunately, the uneven distribution of the present observatory network makes it difficult to determine the global field change pattern. Recently, we have developed an approach to extract satellite monthly means at a regular network of “virtual observatories” at ...
متن کاملSeismic Wave-Field Propagation Modelling using the Euler Method
Wave-field extrapolation based on solving the wave equation is an important step in seismic modeling and needs a high level of accuracy. It has been implemented through a various numerical methods such as finite difference method as the most popular and conventional one. Moreover, the main drawbacks of the finite difference method are the low level of accuracy and the numerical dispersion for l...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1981
ISSN: 0028-0836,1476-4687
DOI: 10.1038/290086a0