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MTNet
dias.ie
An international electronic forum for the free exchange of knowledge, programs and data between scientists engaged in the study of the Earth using electromagnetic methods, principally magnetotellurics.
Geophysics Forum
forum.detectation.com
Online forum for geophysics issues related to environment, engineering, archaeology, hydrology, forensic and other near surface geophysical applications.
USGS Office of Ground Water, Branch of Geophysics
water.usgs.gov
Technical support, guidance, and applied research that fosters the appropriate use of surface and borehole geophysical methods for USGS interdisciplinary earth science investigations and the development of geophysical characterization and monitoring methods.
Vladimir Pinsky
freewebs.com
Personal page of a senior researcher at the Seismological Division of the Geophysical Institute of Israel. Papers on seismic signals processing methods, development and application.
Genetic Algorithms in Joint Inversion
cp.dias.ie
Research discussing some of the advantages and disadvantages of using genetic algorithms for joint inversion of different geophysical datasets, particularly magnetotellurics and seismic receiver functions.
Origin of the Terrestrial Magnetic Field
andrijar.com
Article by Andrija Radovic on how the Earth's geomagnetic field arises.
The Exploration of the Earth's Magnetosphere
www-spof.gsfc.nasa.gov
A detailed non-mathematical introduction to the research on the Earth's magnetic environment in space and its history. Contains master directory of many related text files.
GNS Science
gns.cri.nz
Research institute in New Zealand specializing in earth systems, seismic data acquisition and processing, laboratory analysis, environmental and natural hazards risk analysis.
Multicomponent Seismic: A Pragmatist's Primer
searchanddiscovery.net
Article discussing the different types of multicomponent seismic data, including geophone orientation, recording methods and successful applications.
USGS Geomagnetism Homepage
geomag.usgs.gov
Provides background information on the earth's magnetism, geomagnetic field maps and data, and modelling information.
Introduction to Magnetotellurics
hendrix2.uoregon.edu
A geophysical technique that uses naturally-occurring (or man-made) electromagnetic fields to probe the electrical conductivity structure of the Earth.
The Upper Mantle of the Earth
virtualuppermantle.info
Information about the highly viscous layer between the Earth's crust and the lower mantle, including its internal structure, its material composition and associated natural phenomena.
ORAD Laboratory for Satellite Altimetry
ibis.grdl.noaa.gov
Specializes in the analysis of satellite altimeter data related to problems in physical oceanography and marine geophysics.
Michael Studinger's Homepage
ldeo.columbia.edu
Geophysical and glaciological research on the Antarctic continent with aerogeophysical methods.
EPA Dynamic Field Activities - Geophysical Methods
epa.gov
Common geophysical methods used by the Environmental Protection Agency at hazardous waste sites include: ground penetrating radar, seismic refraction, electromagnetics, and magnetometry. Presents case studies and field-based analytical methods.
Application of Geophysical Methods to Highway Related Problems
cflhd.gov
Provides highway engineers with a basic knowledge of geophysics and nondestructive test (NDT) methods for solving specific engineering problems during geotechnical site investigation, construction, and maintenance of highways.
Seminar in Geophysics: Thermal and Chemical Evolution of the Earth
ocw.mit.edu
Course materials are available for download from MIT, this program studies the historical development and the current status of ideas and models from the different research fields, and investigates the different views on mantle flow.
Magnetotellurics Basics
userpage.fu-berlin.de
Magnetotellurics (MT) is a geophysical method to study the distribution of electrical conductivity in the earth. Article includes examples of recordings and resistivity ranges of standard rock types.- Magnetotellurics MT: Technique, Interpretation, and Application
searchanddiscovery.net
A detailed article explaining the practical application of magnetotellurics. Includes case studies to present processing and interpretation techniques. 
The Great Magnet, the Earth
phy6.org
Historical review of geomagnetism, from the discovery of the compass to plate tectonics and space observations. Also has instructions for teachers, glossary, and FAQ.
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israel21c.org
Thu, 26 Aug 2010 06:01:54 GMT+00:00
Israel 21C Lev V. Eppelbaum of Tel Aviv University's Department of Geophysics & Planetary Sciences, working in collaboration with teams from seven countries, ...
thesciencejobs.com
TheScienceJobs
Wed, 23 Jun 2010 10:46:48 GM
Post title: Lecturer in Petrophysics Formation Evaluation, Heriot-Watt University. Category: Engineering . Geophysics. - Science Jobs, Postdoc Fellowships, Events - Published by TheScienceJobs.com.
Why eigenvalues and convectors are important in geophysics?
Q. Why eigenvalues and convectors are important in geophysics?
Asked by irshad483 - Wed May 2 07:51:48 2007 - - 1 Answers - 0 Comments
A. In solid mechanics, the stress tensor is symmetric and so can be decomposed into a diagonal tensor with the eigenvalues on the diagonal and eigenvectors as a basis. Because it is diagonal, in this orientation, the stress tensor has no shear components; the components it does have are the principal components.
Answered by cinemave - Thu May 3 11:56:40 2007
Q. Why eigenvalues and convectors are important in geophysics?
Asked by irshad483 - Wed May 2 07:51:48 2007 - - 1 Answers - 0 Comments
A. In solid mechanics, the stress tensor is symmetric and so can be decomposed into a diagonal tensor with the eigenvalues on the diagonal and eigenvectors as a basis. Because it is diagonal, in this orientation, the stress tensor has no shear components; the components it does have are the principal components.
Answered by cinemave - Thu May 3 11:56:40 2007
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