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Earth, Planets and Space

Table 1 The three types of model input data comprising satellite, observatory, and field survey data

From: A regional geomagnetic field model over Southern Africa derived with harmonic splines from Swarm satellite and ground-based data recorded between 2014 and 2019

 

Satellite data

Observatory data

Field survey data

Number of data centres

667

4

37

Number of data points

13,343

312

129

Weight of data

40

100

60

  1. Their respective numbers of data centres, and the chosen weight for each data set are presented in the table
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