Regional Modelling of the Southern African Geomagnetic Field using Harmonic Splines

Details Regional Modelling of the Southern African Geomagnetic Field using Harmonic Splines Regional Modelling of the Southern African Geomagnetic Field using Harmonic Splines

2010-02-09

arxiv.org/abs/1002.1856v1

Physics

Geophysics

submitted to GJI

Scientific paper

10.1111/j.1365-246X.2010.04575.x

Over the southern African region the geomagnetic field is weak and changes rapidly. For this area series of geomagnetic field measurements exist since the 1950s. We take advantage of the existing repeat station surveys and observatory annual means, and clean these data sets by eliminating jumps and minimising external field contributions in the original time series. This unique data set allows us to obtain a detailed view of the geomagnetic field behaviour in space and time by computing a regional model. For this, we use a system of representation similar to harmonic splines. Initially, the technique is systematically tested on synthetic data. After systematically testing the method on synthetic data, we derive a model for 1961 to 2001 that gives a detailed view of the fast changes of the geomagnetic field in this region.

Affiliated with

Also associated with

No associations

Rating

Regional Modelling of the Southern African Geomagnetic Field using Harmonic Splines does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Regional Modelling of the Southern African Geomagnetic Field using Harmonic Splines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Regional Modelling of the Southern African Geomagnetic Field using Harmonic Splines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-124645