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| Detailed File Information |
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| File Name |
cals7k.2.d.polar.kmz |
| Data Type |
animation, data compilation |
| Computer Program |
Not specified |
| File Size |
188.10 MB - 1 file |
| Expert Level |
Science Overview (General) |
| Contributor |
Alexandra Lodge |
| Source |
No source |
| Resource Matrix |
The Earth's Magnetic Field |
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Description
This kmz file contains one component, declination, of the global geomagnetic field model, CALS7K.2 (Korte & Constable, 2005). The file contains the model at 50 year intervals covering the last 7000 years, along with a colour scale bar. The colour scale is polar.
It should be noted that due to the large file size ~200 MB, each component is uploaded as a separate file with a different url. For each component, there are 2 versions, one with a rainbow colour scale and one with a polar colour scale.
However, if you visit the following website:
http://pcwww.liv.ac.uk/~alodge/Downloads.html
It is possible to download smaller versions of the model files. N.B. The files are smaller because the images are loaded from a remote server instead of being within the kmz file.
The data that produced these model files are available as kml files from:
http://earthref.org/cgi-bin/er.cgi?s=erda.cgi?n=949
Rainbow scales:
Declination, A.D.: http://earthref.org/cgi-bin/erda.cgi?n=955
Declination, B.C.: http://earthref.org/cgi-bin/erda.cgi?n=954
Inclination: http://earthref.org/cgi-bin/erda.cgi?n=952
Intensity: http://earthref.org/cgi-bin/erda.cgi?n=950
Polar scales:
Inclination: http://earthref.org/cgi-bin/erda.cgi?n=951
Intensity: http://earthref.org/cgi-bin/erda.cgi?n=949
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Instructions
For those unfamiliar with Google Earth, you can either drag and drop the files onto your Google Earth icon, or double-click them and they should open in Google Earth. Then use the left-hand panel to navigate through the files. |
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Keywords
Archaeomagnetism, CALS7K.2, Data visualisation, Geomagnetic field modelling, Google Earth |
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