The combined processing of geomagnetic intensity vector projections and absolute magnitude measurements

Abstract. A method for the combined processing measurements of the projections and the absolute magnitudes of geomagnetic field intensity vectors, based on mathematical technology of local approximation models, was proposed. The approach realized in this paper, based on the proposed method, provides the increase of accuracy of the measurements of the projections of the geomagnetic intensity vector. An algorithm for the two-stage combined processing of the measurements of projections and absolute magnitudes of geomagnetic field intensity vectors was developed. The operation of the combined processing algorithm was tested on models and observatory measurements. The estimates of the combined processing algorithm errors were obtained using statistical modelling. The reduction of the root mean square error values was achieved for the estimates of the projections of geomagnetic field intensity vectors.

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The combined processing of geomagnetic intensity vector projections and absolute magnitude measurements

Geoscientific Instrumentation Methods and Data Systems ◽

10.5194/gi-8-209-2019 ◽

2019 ◽

Vol 8 (2) ◽

pp. 209-215

Author(s):

Victor G. Getmanov ◽

Alexei D. Gvishiani ◽

Roman V. Sidorov

Keyword(s):

Field Intensity ◽

Geomagnetic Field ◽

Absolute Magnitude ◽

Statistical Modelling ◽

Local Approximation ◽

Processing Algorithm ◽

Intensity Vector ◽

Geomagnetic Field Intensity ◽

Absolute Magnitudes ◽

Geomagnetic Intensity

Abstract. A method for the combined processing measurements of the projections and the absolute magnitudes of geomagnetic field intensity vectors, based on mathematical technology of local approximation models, is proposed. The approach realized in this paper, based on the proposed method, provides an increase in quality of the measurements of the projections of the geomagnetic intensity vector. An algorithm for the two-stage combined processing of the measurements of projections and absolute magnitudes of geomagnetic field intensity vectors is developed. The operation of the combined processing algorithm was tested on models and observatory measurements. The estimates of the combined processing algorithm errors were obtained using statistical modelling. The reduction of the root-mean-square error values was achieved for the estimates of the projections of geomagnetic field intensity vectors.

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Geomagnetic field intensity changes in the Central Mediterranean between 1500 BCE and 150 CE: Implications for the Levantine Iron Age Anomaly evolution

Earth and Planetary Science Letters ◽

10.1016/j.epsl.2020.116732 ◽

2021 ◽

Vol 557 ◽

pp. 116732

Author(s):

M. Rivero-Montero ◽

M. Gómez-Paccard ◽

D. Kondopoulou ◽

E. Tema ◽

F.J. Pavón-Carrasco ◽

...

Keyword(s):

Iron Age ◽

Field Intensity ◽

Geomagnetic Field ◽

Central Mediterranean ◽

Intensity Changes ◽

Geomagnetic Field Intensity

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Geomagnetic field intensity from 71 to 12 ka as recorded in deep-sea sediments of the Blake Outer Ridge, North Atlantic Ocean

Journal of Geophysical Research Atmospheres ◽

10.1029/1998jb900003 ◽

1998 ◽

Vol 103 (B12) ◽

pp. 30407-30417 ◽

Cited By ~ 20

Author(s):

Martha Schwartz ◽

Steve P. Lund ◽

Thomas C. Johnson

Keyword(s):

Atlantic Ocean ◽

Field Intensity ◽

North Atlantic ◽

Deep Sea ◽

Geomagnetic Field ◽

North Atlantic Ocean ◽

Deep Sea Sediments ◽

Geomagnetic Field Intensity

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A tectonomagnetic effect detected in Central Italy

Annals of Geophysics ◽

10.4401/ag-4233 ◽

1994 ◽

Vol 37 (1) ◽

Author(s):

G. Mele ◽

A. Meloni ◽

P. Palangio

Keyword(s):

Field Intensity ◽

Geomagnetic Field ◽

Central Italy ◽

Volcanic Eruptions ◽

Intensity Data ◽

Absolute Level ◽

Tectonic Events ◽

Railway System ◽

The Absolute ◽

Geomagnetic Intensity

Significant variations in the absolute value of the geomagnetic field intensity related to tectonic events, as earthquakes and volcanic eruptions, have been observed in several cases. To detect such a tectonomagnetic effect related to seismic activity, a seismomagnetic network was installed by the Istituto Nazionale di Geofisica (ING) in the Abruzzi region (CentraI Italy), in July 1989. This area is being uplifting since the Pliocene. A logistic compromise between geophysical requirements and the electrified railway system tracks distribution led to the installation of five total magnetic field intensity data acquisition sites. From July 1989 to September 1992 geomagnetic intensity data were simultaneously recorded at all stations and compared to that recorded at the L'Aquila Observatory, located in the same area. A variation of about 10 nT in the absolute level of the geomagnetic field was measured at two stations located on the eastern side of the network. We suggest that the detected magnetic anomaly could resuIt from aseismic-changes in crustal stress during this time.

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