Results 11 to 20 of about 1,531 (255)

Old magnetic declinations [PDF]

Terrestrial Magnetism, 1896
On account of the renewed interest being paid to old magnetic observations, I should like to inform you that I am continuing my researches, the results of which I published in my paper, “De Isogonen in de XVIde en XVIIde Eeuw, Utrecht, 1893.”The large number of old ship journals, in the government archives at The Hague, furnished me with a thousand new
openaire   +2 more sources

Optimization of magnetic anomaly detection with single-axis sensor for pig locating in low latitude areas

Petroleum, 2019
When a pig mounted with permanent magnets gets stuck in the pipeline, it can be located by detecting the magnetic anomalies on the ground using a single-axis magnetic sensor.
Wei Xu, Zhiyong Guo, Zhongxiang Liu, Peng Zhang, Yanxi Zhou   +4 more
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Ground-based absolute magnetic survey on the backbone network of points of the secular passage in Ukraine for the era of 2005

Геофизический журнал, 2010
The results of the geomagnetic field components on renewed Ukrainian repeat stations (RS) network are considered. The methods of absolute geomagnetic and astro-geodetic measurements are described, as well as methods of geomagnetic field reduction to ...
V. Yu. Maksimchuk, M. I. Orlyuk, V. I. Tregubenko, Yu. M. Gorodiski, V. P. Myasoedov, E.F. Nakalov   +5 more
doaj   +1 more source

Fog-based automatic true north detection for absolute magnetic declination measurement [PDF]

Geoscientific Instrumentation, Methods and Data Systems, 2017
Absolute magnetic measurements are of great importance in magnetic observatories. They allow not only instrument calibration but also data quality checking.
A. Gonsette, J. Rasson, S. Bracke, A. Poncelet, O. Hendrickx, F. Humbled   +5 more
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Historical evolution of the geomagnetic declination at the Royal Observatory of Madrid [PDF]

History of Geo- and Space Sciences
The agonic line, which represents geomagnetic declinations of 0°, recently crossed the Royal Observatory of Madrid (ROM) in December 2021, causing a shift in declination values from west to east.
J. M. Tordesillas, J. M. Tordesillas, F. J. Pavón-Carrasco, F. J. Pavón-Carrasco, A. Nuñez, A. B. Anquela   +5 more
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A modelling study of the latitudinal variations in the nighttime plasma temperatures of the equatorial topside ionosphere during northern winter at solar maximum [PDF]

Annales Geophysicae, 2000
Latitudinal variations in the nighttime plasma temperatures of the equatorial topside ionosphere during northern winter at solar maximum have been examined by using values modelled by SUPIM (Sheffield University Plasmasphere Ionosphere Model) and ...
G. J. Bailey, M. H. Denton, R. A. Heelis, S. Venkatraman   +3 more
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Magnetic Declination and Space Weather: A possible mechanism in Climate Change and Weather Forecast [PDF]

E3S Web of Conferences
Numerous studies have been published on the contribution of Earth’s magnetic field to Earth’s climate. Most of them are being focused on the upper atmosphere and the caused effects in the conductivity of the ionosphere, the transport processes of ...
Kampolis Dimitrios
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Report on the magnetic survey in Slovakia for the 2014.5 epoch

Contributions to Geophysics and Geodesy, 2016
The models of the distribution of the elements of the geomagnetic field must be updated regularly. For this purpose geomagnetic measurements have to be carried out repeatedly at geomagnetic observatories as well as at temporary observation points.
Fridrich VALACH, Magdaléna VÁCZYOVÁ, Tomáš ŠOLTIS, Melinda VAJKAI   +3 more
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Onboard and External Magnetic Bias Estimation for UAS through CDGNSS/Visual Cooperative Navigation

Sensors, 2021
This paper describes a calibration technique aimed at combined estimation of onboard and external magnetic disturbances for small Unmanned Aerial Systems (UAS).
Federica Vitiello, Flavia Causa, Roberto Opromolla, Giancarmine Fasano   +3 more
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Model magnetne deklinacije za Slovenijo ; The model of magnetic declination of Slovenia [PDF]

Geodetski Vestnik, 2012
Predstavljen je polinomski model magnetne deklinacije za območje Slovenije, ki zaradi svojega lokalnega značaja omogoča točnejše izračunavanje deklinacije, kot je to mogoče s svetovnimi modeli. Podlaga za izračun koeficientov modela so vrednosti magnetne
Dalibor Radovan, Tomaž Žagar
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