Results 31 to 40 of about 1,055 (183)

A new geomagnetic observatory at Livingston Island (South Shetland Islands): Implications for future regional magnetic surveys

Annals of Geophysics, 1999
A pennanent geomagnetic observatory is always the ideal reference station for monitoring geomagnetic activity during airborne, marine or ground magnetic surveying, especially in Antarctica, where logistic difficulties are an important factor even for the
A. Garcia, I. Bianco, J. G. Sole, L. R. Gaya-Piqué, J. M. Torta   +4 more
doaj   +1 more source

Saint Petersburg magnetic observatory: from Voeikovo subdivision to INTERMAGNET certification [PDF]

Geoscientific Instrumentation, Methods and Data Systems, 2017
Since June 2012 the Saint Petersburg magnetic observatory is being developed and maintained by two institutions of the Russian Academy of Sciences (RAS) – the Geophysical Center of RAS (GC RAS) and the Saint Petersburg branch of the Pushkov Institute ...
R. Sidorov, A. Soloviev, A. Soloviev, R. Krasnoperov, D. Kudin, D. Kudin, A. Grudnev, A. Grudnev, Y. Kopytenko, A. Kotikov, A. Kotikov, P. Sergushin   +11 more
doaj   +1 more source

U.S. geomagnetic observatories

Eos, Transactions American Geophysical Union, 1973
We are writing to express our concern about the future plans for the United States geomagnetic observatories. It is our understanding that negotiations are presently under way between NOAA (in the Department of Commerce) and the U.S. Geological Survey (in the Department of the Interior) to transfer the jurisdiction of the observatories from NOAA to ...
openaire   +1 more source

Long‐Term Trends in the Ionospheric Equivalent Slab Thickness as a Proxy of Climate Change in the Ionosphere

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Global warming warms the lower atmosphere, but cools and contracts the upper atmosphere. These changes also affect the ionosphere, altering the vertical distribution of plasma through changes in the plasma scale height. Here, we use ionospheric equivalent slab thickness (τ) multidecadal time series, derived through observations from co‐located
A. Pignalberi, T. Alberti
wiley   +1 more source

A new permanent geomagnetic station at Colima volcano observatory, Mexico [PDF]

Geofísica Internacional, 2000
The first geomagnetic station (COV) has been installed near Colima volcano by the Geophysics Institute of the National Autonomous University of Mexico, and Colima Volcano Observatory at the University of Colima.
Juan José Ramírez, Ricardo Becerril, René Chávez, Francisco Correa-Mora, Jaime Urrutia-Fucugauchi, Enrique Cabral-Cano, Gerardo Cifuentes-Nava, Esteban Hernández-Quintero   +7 more
doaj  

A low-power data acquisition system for geomagnetic observatories and variometer stations [PDF]

Geoscientific Instrumentation, Methods and Data Systems, 2017
A modern geomagnetic observatory must provide data of high stability, continuity, and resolution. The INTERMAGNET network has therefore specified quantitative criteria to ensure a high quality standard of geomagnetic observatories.
A. Morschhauser, J. Haseloff, O. Bronkalla, C. Müller-Brettschneider, J. Matzka   +4 more
doaj   +1 more source

YOLO‐Based Detection and Localization of Rocket Induced Traveling Ionospheric Disturbances

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract During rocket launches, atmospheric disturbances significantly impact the ionosphere, generating Traveling Ionospheric Disturbances (TIDs). These disturbances can affect radio communications and navigation systems and may pose risks to high‐speed aerospace vehicles.
Zhou Chen, Jiahao Zeng, Jing‐Song Wang, Yan Guo, Cunqun Fan, Fabao Yan, Hui Zhu   +6 more
wiley   +1 more source

Validation of ANCHOR Ionospheric Data Assimilation Model Using GIRO Ionosondes Within PyVALION Software

Radio Science, Volume 61, Issue 8, August 2026.
Abstract Accurate specification of the ionosphere is essential for mitigating the impacts of space weather on communication, navigation, and surveillance systems. ANCHOR is a newly developed ionospheric data assimilation (DA) model from the U.S. Naval Research Laboratory that fuses measurements from ionosondes, radio occultation, and Global Navigation ...
Victoriya V. Forsythe, Katherine A. Zawdie, Dustin Hickey, Angeline G. Burrell   +3 more
wiley   +1 more source

Geomagnetic ground survey in Slovakia for the 2007.5 epoch

Contributions to Geophysics and Geodesy, 2009
New  geomagnetic ground  survey  was  carried  out in  years  2006–2008.   The survey  was accomplished under  fair geomagnetic-activity conditions during  the minimum phase  of a solar  activity  cycle No. 23.  The  measurements  of the geomagnetic field
Peter DOLINSKÝ, Fridrich VALACH, Magdaléna VÁCZYOVÁ, Milan HVOŽDARA   +3 more
doaj  

Co-estimation of geomagnetic field and in-orbit fluxgate magnetometer calibration parameters

Earth, Planets and Space, 2020
For the past 20 years, state of the art geomagnetic core field models have relied heavily on magnetic measurements made from space-based instrumentation.
Patrick Alken, Nils Olsen, Christopher C. Finlay   +2 more
doaj   +1 more source