Sentences with phrase «dipole field»
A dipole field refers to a type of magnetic field that has two poles, a north pole and a south pole, just like a bar magnet. These poles have opposite magnetic charges, attracting or repelling other magnetic objects. Think of it like a positive and negative end of a battery. In simple terms, a dipole field is a magnetic field with two poles. Full definition
If space were a vacuum, then the Sun's 10 - 4 tesla magnetic dipole field would reduce with the cube of the distance to about 10 - 11 tesla.
newworldencyclopedia.org
Having modeled the growth and movement of these inverted - flux sections, they can now account for nearly the entire decrease in the main dipole field of the earth over the past 150 years.
«These new models do not support the assumption of a stable dipole field at all times, contrary to what we'd previously believed.»
Therefore, these variations are likely dominated by solar influence, as e.g. known for the last 500 years where a series of solar minima leads to erroneous low dipole field reconstructions using the radionuclide data.
VADMs are obtained by translating archeomagnetic intensity results to the strength of a pure axial dipole field with that intensity at the given geographic latitudes.
They offer an easy way to distinguish between dominating dipole field and smaller scale non-dipole field contributions.
Similarly, VGPs are obtained as the poles of a pure, but tilted, dipole field from magnetic directional results.
The Dipole Field, the GTA and the ELOD all have a 60 year period on the decade time scale.
Here we review several spherical harmonic models and compare their dipole field predictions to reconstructions based on virtual axial dipole moments and virtual geomagnetic poles.
However, regional differences in the radionuclide production rates are caused by the nature of dipole field.
It is therefore generally assumed that geomagnetic modulation in 14C or 10Be records is related only to the dipole field contribution and not influenced by regional geomagnetic field differences due to the altitude at which the cosmic ray modulation occurs.