Results 161 to 170 of about 1,069 (204)

The Genesis of Geomagnetic Observatories in Portugal

Earth Sciences History, 2005
Interest in mapping not merely the heavens but also the lands, a special concern of modern civilizations, increased mainly at the end of the eighteenth and beginning of the nineteenth centuries. Although knowledge about geomagnetism was old, only in the nineteenth century was it possible to improve precision measurements of magnetic intensity.
Isabel Malaquias, Emília Vaz Gomes, Décio Martins   +2 more
openaire   +1 more source

Improvements in Geomagnetic Observatory Data Quality

2010
Geomagnetic observatory practice and instrumentation has evolved significantly over the past 150 years. Evolution continues to be driven by advances in technology and by the need of the data user community for higher-resolution, lower noise data in near-real time.
Reda, J., Fouassier, D., Isac, A., Linthe, H., Matzka, J., Turbitt, C.   +5 more
openaire   +3 more sources

Klimovskaya: A new geomagnetic observatory

Geomagnetism and Aeronomy, 2016
In 2011 Geophysical Center RAS (GC RAS) began to deploy the Klimovskaya geomagnetic observatory in the south of Arkhangelsk region on the territory of the Institute of Physiology of Natural Adaptations, Ural Branch, Russian Academy of Sciences (IPNA UB RAS).
A. A. Soloviev, R. V. Sidorov, R. I. Krasnoperov, A. A. Grudnev, A. V. Khokhlov   +4 more
openaire   +1 more source

The Boulder Geomagnetic Observatory

Physics Today, 1963
The US Department of Commerce has announced the forthcoming establishment in Colorado of a new geomagnetic observatory to be operated as a joint project of two of the Department's bureaus, the Coast and Geodetic Survey and the National Bureau of Standards. It will be located at the NBS Table Mesa field station, north of Boulder.
openaire   +1 more source

The Global Geomagnetic Observatory Network

2010
The paper provides a snapshot of the global geomagnetic observatory network at the time of the Sopron IAGA Assembly in August 2009. The need for these observatories is explained and the evolution and outlook of the observing techniques are examined. We present three projects addressing the upgrade of existing observatories, the creation of new ones and
Jean L. Rasson, Hiroaki Toh, Dongmei Yang   +2 more
openaire   +1 more source

Geodetic observations at geomagnetic observatories

Geomagnetism and Aeronomy, 2015
Geodetic observations at geomagnetic observatories are used to orient reference directions in relation to a common coordinate grid. This problem is solved with the use of the measuring tools of global navigation satellite systems (GNSS). The results of experimental GNSS determinations at the St. Petersburg Geomagnetic Observatory, Russia, are presented.
Kaftan V.I., Krasnoperov R.I.
openaire   +1 more source

STUDY OF THE MULTIFRACTALITY OF GEOMAGNETIC VARIATIONS AT THE BELSK OBSERVATORY

Доклады Российской академии наук. Науки о Земле, 2022
The study of the dynamics of periodic variations with periods from 1 to 27 days using the wavelet transform and scaling analysis by the method of maxima of the modules of the wavelet transform coefficients is carried out using the results of instrumental observations of the geomagnetic field performed at the Belsk Central Geophysical Observatory in ...
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Geomagnetic and Observatory and Survey Practice

1984
Absolute Measurement of D by Means of a Proton Magnetometer.- Portable Magnetometer Theodolite with Fluxgate Sensor for Earth's Magnetic Field Component Measurements.- Acquisition and Primary Processing of Geomagnetic Pulsations in Real Time Operation by Microcomputer.- The Recording of Pc1 Geomagnetic Pulsations Using a Microcomputer Preprocessing ...
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A NEW GEOMAGNETIC OBSERVATORY IN CROATIA

2013
Almost a decade ago we started to renew the research and monitoring of geomagnetic activity in Croatia. The purpose of these measurements was to obtain insight into the structure of the local field and to determine the best location for an observatory.
Mandić, Igor, Csontos, Andras, Heilig, Balazs   +2 more
openaire   +2 more sources

Accuracy of recordings at a digital geomagnetic observatory

Physics of the Earth and Planetary Interiors, 1990
Abstract The final absolute accuracy of the data produced in a geomagnetic observatory depends on absolute measurements, recording systems used, and the data processing. Here the effect on accuracy of the progress in measuring techniques and instruments is considered based on experience at the Nurmijarvi Geophysical Observatory in Finland.
openaire   +1 more source