Results 11 to 20 of about 17,575 (301)

Geomagnetic core field models and secular variation forecasts for the 13th International Geomagnetic Reference Field (IGRF-13)

open access: yesEarth, Planets and Space, 2020
Observations of the geomagnetic field taken at Earth’s surface and at satellite altitude are combined to construct continuous models of the geomagnetic field and its secular variation from 1957 to 2020.
I. Wardinski   +6 more
doaj   +2 more sources

Four decades of European geomagnetic secular variation and acceleration

open access: yesAnnals of Geophysics, 2009
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Monika Korte   +2 more
doaj   +3 more sources

Jovimagnetic secular variation [PDF]

open access: yes, 2013
Planetary dynamos, resulting from fluid flow in electrically conductive parts of their interior, are thought to be highly time dependent. Currently, our understanding of temporal variation of these fields is limited because we only have observations for one example, the Earth.
Ridley, Victoria Anne
openaire   +2 more sources

Community participation in secular and religious contexts across sociodemographic groups in 22 countries [PDF]

open access: yesScientific Reports
In an increasingly fragmented and isolated world, community participation remains an essential source of social connection. However, how community participation varies across countries and sociodemographic groups remains unclear.
Ying Chen   +7 more
doaj   +2 more sources

Compatibility of magnetic imprinting and secular variation [PDF]

open access: yesCurrent Biology, 2008
SummaryDiverse ocean migrants, including some sea turtles, elephant seals, and salmon, begin life in particular reproductive areas along coastlines, disperse across vast expanses of sea, and then return as adults to their natal areas to reproduce [1–3].
Putman, Nathan F., Lohmann, Kenneth J.
openaire   +3 more sources

How might magnetic secular variation impact avian philopatry? [PDF]

open access: yesJ Comp Physiol A Neuroethol Sens Neural Behav Physiol, 2022
A tendency to return to the natal/breeding site, ‘philopatry’, is near ubiquitous amongst migratory birds. It has long been suggested that a magnetic ‘map’ could underpin such movements, though it is unclear how a magnetic map might be impacted by ...
Wynn J   +6 more
europepmc   +2 more sources

Geomagnetic secular variation [PDF]

open access: yesPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1989
Abstract We analyse over 175000 magnetic observations from an interval spanning 1695-1980 to produce a sequence of maps of the magnetic field at the core-mantle boundary; we find that even the earlier data enable us to determine reliable maps.
Jeremy Bloxham   +2 more
  +6 more sources

Dependence of the velocity changes of secular variations on the position of observatory and time

open access: yesГеофизический журнал, 2021
According to the data of world observatories net secular variations of geomagnetic fields from internal and outer sources have been studied. Averaged 3-year data have been used for this purpose.
T. P. Sumaruk, P. V. Sumaruk
doaj   +1 more source

The Meaning of ‘Secular’ as a Scientific Concept

open access: yesSecularism and Nonreligion, 2020
The meaning of ‘secular’ in the scientific use of ‘secular trend’, ‘secular variation’, and similar terms is a topic that merits historical investigation.
John Shook
doaj   +1 more source

Comparison and Renormalization of Holocene Paleointensity Records From Central North America (17°N–51°N, 205°E–295°E)

open access: yesEarth and Space Science, 2021
This paper develops a composite absolute paleointensity record for Holocene paleomagnetic secular variation (PSV) from central North America. Twelve full‐vector (inclination, declination, paleointensity) PSV records were assessed in order to build the ...
Steve P. Lund   +5 more
doaj   +1 more source

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