Changes of lithospheric magnetic anomalies with altitude (According to the CHAMP satellite)

Abramova, D. Yu.; Филиппов, С. В.; Abramova, L. M.; Варенцов, И.М.; Lozovskii, I. N.

doi:10.1134/s001679321602002x

Cited by 6 publications

(5 citation statements)

References 28 publications

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“…This basin is a back-arc basin which is surrounded by the Alpine, Carpathian and Dinaric mountains chains. The development of the Pannonian Basin is summarized by [16], [17], and [8].…”

Section: A Review Of Previous Studiesmentioning

confidence: 99%

“…The inversion procedures are discussed [5] and [6]. The Laplacian and Gaussian model parameter distributions and the effect of regularization are presented [5] [6] and [7] showed the calculation of horizontal gradients and their interpretation, [8] pointed out that the source of the global magnetic anomalies was in the lithosphere. They applied the CHAMP magnetic measurements for their interpretation.…”

Section: Introductionmentioning

confidence: 99%

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Interpretation of the Magnetic Measurements of the Swarm-A Satellite over Central Europe

Pt¹,

Ki²,

Toronyi³

et al. 2019

Int J Astronaut Aeronautical Eng

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Our paper discusses the determination of total magnetic field anomalies derived from the Swarm-A satellite data; one of two low orbiting satellites of the three Swarm formations. This procedure requires several modifications. The first step is the conversion of the measured CDF data to the ASCII format. This step is followed for the selection of the data with K p index ≤ 1 +. The anomalies are determined by the removal of the IGRF from the resulting satellite data. There are two Swarm-A data sets descending (6000) orbits and ascending (5688) orbits. For our study the descending orbits were used. The calculations next step is to difference of the two-dimensional linear field Figure 3 fitted to the Swarm-A anomalies and the anomalies given in Figure 2. These anomalies are filtered by Gaussian low-pass filter. The last step of the corrections is the remove the direct component, zero spatial frequency, from the descending orbits. The anomalies and their vertical gradients are qualitatively interpreted over Central Europe and the Pannonian Basin.

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“…This basin is a back-arc basin which is surrounded by the Alpine, Carpathian and Dinaric mountains chains. The development of the Pannonian Basin is summarized by [16], [17], and [8].…”

Section: A Review Of Previous Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Interpretation of the Magnetic Measurements of the Swarm-A Satellite over Central Europe

Pt¹,

Ki²,

Toronyi³

et al. 2019

Int J Astronaut Aeronautical Eng

View full text Add to dashboard Cite

show abstract

“…Методика, примененная в данной работе, ранее успешно использовалась для исследований АМП различных регионов Земли [Abramova et al, 2009[Abramova et al, , 2011[Abramova et al, , 2014[Abramova et al, , 2016[Abramova et al, , 2017Abramova D.Yu., Abramova L.M., 2014]. Как уже упоминалось выше, один из подходов построения литосферного поля состоит в тщательном выборе экспериментальных данных и последовательном исключении из измеренных значений магнитного поля всех «лишних» составляющих, что дает в остатке лишь литосферное поле.…”

Section: данные и методика их обработкиunclassified

Correlation between lithospheric magnetic anomalies and tectonic structures in the Norwegian-Greenland region of the Arctic

Abramova

Филиппов

2018

Geodin. tektonofiz.

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The studies of the deep structure and tectonics of the Arctic are important for solving the fundamental problems of modern geodynamics and developing its natural resources. This region is also of interest from the geopolitical point of view, in particular, considering the boundaries of the marginal seas. Our study aims to investigate the lithospheric (anomalous) geomagnetic field in the Norwegian-Greenland region of the Arctic and to correlate the identified anomalies with tectonic structures located in the region under study. The database includes the CHAMP satellite measurements of the modulus of the total geomagnetic field vector (the satellite operated at the altitude of ~280 km). This article describes the satellite data processing method applied to distinguish between the lithospheric part and other components of the geomagnetic field. Map showing the total vector modulus of the lithospheric field has been constructed for the studied area. The article discusses the possible nature of the lithospheric magnetic anomalies and their relation to the processes that occur under the territory of Greenland. According to our interpretation of the maps, the geomagnetic field anomalies are related to the modern large-scale geological and tectonic structures located in the studied area. The obtained results can facilitate further comprehensive geological and geophysical studies and contribute to modeling of the evolution of the lithosphere.

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“…Recently, magnetic studies provided prominent information about Earth's crust (Langel and Hinze, 1998;Purucker and Whaler, 2007;Abramova et al, 2016). Geophysical exploration (Gibson and Millegan, 1998;Hildenbrand et al, 2000), large-scale geological interpretation and tectonic boundaries (Hinze, 1985) can be evaluated via magnetic studies.…”

Section: Introductionmentioning

confidence: 99%

“…Historically, there were four magnetic satellites, Pogo (Regan et al, 1975), Magsat (Langel et al, 1982;Cain et al, 1989;Arkani-Hamed et al, 1994;Ravat et al, 1995), Ørsted (Olsen, 2000) and CHAMP (Olsen et al, 2006;Maus et al, 2008;Abramova et al, 2016), which investigate parameters of the geomagnetic field.…”

Section: Introductionmentioning

confidence: 99%

Interpretation of the magnetic anomalies over the Mid-Atlantic Ocean Ridge using Swarm-A satellite

Özsöz

Pamukçu

2022

Geofizika (Online)

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The procedures and interpretation of the magnetic data measured over the Mid-Atlantic Ocean Ridge by Swarm-A satellite is discussed in this paper. The data processing procedure has four phases after the data format conversion. The first phase is the selecting data whose Kp index is lower than 1. Secondly, the main magnetic field should be subtracted from the measured data for example through the IGRF model. This step is followed by removing trend, related to the satellite trajectory. The final step is eliminating the dipole nature of the magnetic field via Reduction to the Pole (RTP). Nonetheless, the RTP process might cause misinterpretation over the large study area and lower latitudes. Therefore, the amplitude of the analytic signal (AS) is used as an alternative to the RTP. The qualitative interpretation of the magnetic anomaly is conducted via AS anomaly, bathymetry, heat flow and tectonic map. Quantitatively correlation coefficients of bathymetry and heat flow with respect to AS are interpreted.

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Changes of lithospheric magnetic anomalies with altitude (According to the CHAMP satellite)

Cited by 6 publications

References 28 publications

Interpretation of the Magnetic Measurements of the Swarm-A Satellite over Central Europe

Interpretation of the Magnetic Measurements of the Swarm-A Satellite over Central Europe

Correlation between lithospheric magnetic anomalies and tectonic structures in the Norwegian-Greenland region of the Arctic

Interpretation of the magnetic anomalies over the Mid-Atlantic Ocean Ridge using Swarm-A satellite

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