Results 61 to 70 of about 1,592 (224)
Geomagnetic Secular Variation, 1962.5 to 1967.5 [PDF]
Geophysical Journal International, 1974 Summary Mean values of observatory geomagnetic data for the intervals 1960.0 to 1965.0 and 1965.0 to 1970.0 are subjected to spherical harmonic analysis to obtain coefficients of the main magnetic field. Since the same set of 118 observatories was used for each interval, the difference between the two sets of coefficients gives a reliable measure of ...
S. R. C. Malin, A. D. Clark
openaire +1 more source
An Information Geometry‐Based Method to Study Atmospheric and Seismic Phenomena With VLF Signals
Earth and Space Science, Volume 13, Issue 7, July 2026.Abstract We propose to employ the framework of information geometry to detect anomalies in Very Low Frequency (VLF) and Low Frequency (LF) signal propagation, measured globally across amplitude and phase channels. Using a sliding‐window approach, the probability distributions of signal data are compared over adjacent intervals, defining a statistical ...
Abhiram Anand Thiruthummal +4 more
wiley +1 more source
Earth, Planets and Space, 2021 The three candidate models submitted by the British Geological Survey for the 13th generation International Geomagnetic Reference Field are described.
William J. Brown +3 more
doaj +1 more source
Geomagnetic Secular Variation at the Indian Observatories.
Journal of geomagnetism and geoelectricity, 1997 Annual mean values of geomagnetic field components D, H and Z for all days and quiet days at six observatories are analysed to investigate the secular variations and geomagnetic jerks in the Indian region. Secular trends show a region of demarkation between equatorial and low latitude stations.
Bhardwaj, S. K., Rangarajan, G. K.
openaire +2 more sources
A Mountain Glacier Perspective on the Bipolar Seesaw
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract A global record of mountain glacier terminations during the last deglaciation (∼19–11 ka) dated by a large, uncurated data set of cosmogenic‐nuclide exposure ages highlights a statistically significant asynchrony in termination ages between the Northern and Southern Hemispheres.
Joseph P. Tulenko, Greg Balco
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract The large‐scale traveling ionospheric disturbances (LSTIDs) over the Asian‐Pacific sector during the 10–11 May 2024 superstorm are investigated using ionosonde observation and simulation from a whole geospace model—Multiscale Atmosphere Geospace Environment (MAGE), which fully couples multiple magnetosphere, ionosphere and thermosphere models.
Tianyang Hu +6 more
wiley +1 more source
Aggregate, Volume 7, Issue 6, June 2026.This review surveys eukaryotic cilia as putative quantum‐enabled sensory and regulatory centers. It highlights their multifaceted roles in the cell, focuses on the nontrivial roles of quantum mechanics in their membrane and cytoskeletal proteins, and introduces the essential building blocks enabling quantum properties to survive in the warm, wet, and ...
Daniel L. Bilezikian +5 more
wiley +1 more source
GEOMAGNETIC SECULAR VARIATION AND THE 1969–1970 SECULAR JERK AT THE AFRICAN OBSERVATORIES
, 2023 All-day annual mean values of the D, H and Z components of the geomagnetic field from ten observatories in the African continent are used to study long period secular variations, effects of external signals for the variation in the recorded field and for
Haile, Tigistu
core
Loess Studies in Aotearoa New Zealand
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.Loess in Aotearoa New Zealand (ANZ) has been studied since its first documented recognition (on Banks Peninsula) in 1878 by Julius von Haast. A decade later, John Hardcastle revealed that southern ANZ loess was both glacial in origin and contained signals of past climates.
Brent V. Alloway +4 more
wiley +1 more source
Geomagnetic secular variation and the 1969–1970 secular jerk at the African observatories
, 2005 All-day annual mean values of the D, H and Z components of the geomagnetic field from ten observatories in the African continent are used to study long period secular variations, effects of external signals for the variation in the recorded field and for
Haile, Tigistu, Tigistu Haile
core +1 more source