A comprehensive model of Earth’s magnetic field determined from 4 years of Swarm satellite observations

Sabaka, Terence J.; Tøffner-Clausen, Lars; Olsen, Nils; Finlay, Christopher C.

doi:10.1186/s40623-018-0896-3

Earth, Planets and Space

Table 6 CIY4 weighted residual statistics continued

From: A comprehensive model of Earth’s magnetic field determined from 4 years of Swarm satellite observations

Origin	Type	Sun	Comp	QD latitude
				Low			Mid			High
				K	\(\mu _w\)	\(r_w\)	K	\(\mu _w\)	\(r_w\)	K	\(\mu _w\)	\(r_w\)
Charlie	Field	Dark	B	259,643	− 0.586	1.846	1,167,024	0.100	1.604
			P	259,643	0.110	1.912	1,167,024	− 0.101	2.578
			3	259,643	− 0.159	2.241	1,167,024	0.076	2.662
			F	259,643	− 0.604	1.851	1,167,024	0.097	1.604	705,882	0.002	5.599
	NS differences	Dark	N	129,773	0.003	0.213	582,975	0.002	0.332
			E	129,773	− 0.001	0.342	582,975	− 0.001	0.372
			C	129,773	− 0.006	0.355	582,975	− 0.001	0.278
			F	129,723	0.006	0.174	582,999	− 0.012	0.186	352,487	− 0.024	0.941
		Light	N	164,450	− 0.004	0.764	802,108	− 0.006	0.571
			E	164,450	− 0.006	0.811	802,108	− 0.004	0.848
			C	164,450	− 0.001	0.926	802,108	0.001	0.533
			F	164,346	0.000	0.652	802,180	0.009	0.320	678,530	− 0.037	1.096
	NS sums	Dark	N	129,773	− 1.033	3.141	582,975	− 0.577	3.965
			E	129,773	0.172	3.198	582,975	− 0.107	4.147
			C	129,773	− 0.312	3.569	582,975	0.086	3.299
			F	129,723	− 0.940	3.049	582,999	0.204	2.662	352,487	0.028	8.983
		Light	N	164,450	2.129	7.095	802,108	− 0.682	7.054
			E	164,450	− 0.502	11.935	802,108	0.045	9.276
			C	164,450	0.104	7.662	802,108	− 0.020	5.562
			F	164,346	2.108	6.780	802,180	− 0.659	5.051	678,530	− 3.739	12.857
Alpha/Charlie	EW differences	Dark	N	234,862	0.108	0.407	1,057,587	0.081	0.495
			E	234,862	0.015	0.905	1,057,587	0.009	0.910
			C	234,862	− 0.122	0.617	1,057,587	0.014	0.427
			F	235,259	− 0.095	0.373	1,060,137	− 0.069	0.341	654,422	− 0.065	0.555
		Light	N	297,697	− 0.033	0.648	1,451,527	− 0.027	0.788
			E	297,697	− 0.023	2.146	1,451,527	− 0.009	1.862
			C	297,697	− 0.069	1.285	1,451,527	0.018	0.746
			F	298,285	0.028	0.548	1,453,701	0.008	0.491	1,218,886	− 0.072	0.616
	EW sums	Dark	N	234,862	− 1.175	3.086	1,057,587	− 0.677	3.703
			E	234,862	0.280	2.984	1,057,587	− 0.050	4.007
			C	234,862	− 0.262	2.822	1,057,587	0.096	2.797
			F	235,259	− 1.063	2.982	1,060,137	0.168	2.495	654,422	− 0.005	9.166
		Light	N	297,697	2.270	7.029	1,451,527	− 0.630	6.772
			E	297,697	− 0.367	11.680	1,451,527	0.057	8.920
			C	297,697	0.099	7.038	1,451,527	− 0.057	5.194
			F	298,285	2.256	6.720	1,453,701	− 0.566	4.945	1,218,886	− 3.858	13.066
OHM	Field	Dark	N	30,040	− 0.001	4.422	363,714	− 0.004	4.133	103,441	0.009	14.686
			E	30,040	0.000	5.246	363,714	0.002	4.847	103,441	0.000	11.599
			C	30,040	0.001	4.499	363,714	0.003	3.675	103,441	0.005	14.850
		Light	N	38,022	2.688	10.602	533,305	0.631	6.861	222,753	3.384	18.633
			E	38,022	− 1.961	9.344	533,305	− 1.750	7.882	222,753	− 3.384	15.666
			C	38,022	− 0.073	9.957	533,305	− 0.180	5.452	222,753	− 0.927	17.620

The \(\mu _w\) and \(r_w\) are in units of nT

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