Zobrazeno 1 - 10
of 9 561
pro vyhledávání: '"secular variation"'
Publikováno v:
地球与行星物理论评, Vol 55, Iss 6, Pp 693-704 (2024)
The South Atlantic Anomaly (SAA) is one of the most remarkable structural features of the Earth's magnetic field. The region is characterized by weak magnetic field intensity. Because of this weakening, particles within the inner radiation belt can m
Externí odkaz:
https://doaj.org/article/089f51a825aa4032b05c3816de79896c
Publikováno v:
地球与行星物理论评, Vol 55, Iss 6, Pp 719-732 (2024)
Earth's magnetic field is generated through the dynamo action in the liquid outer core. Using observational data from geomagnetic satellites and observatories, we can construct geomagnetic models that describe spatial and temporal variations of the c
Externí odkaz:
https://doaj.org/article/03a12456d78d4c7790da3f1f194683a0
Publikováno v:
Earth, Planets and Space, Vol 76, Iss 1, Pp 1-10 (2024)
Abstract A technique for predicting the secular variation (SV) of the geomagnetic field based on the echo state network (ESN) model is proposed. SV is controlled by the geodynamo process in the Earth’s outer core, and modeling its nonlinear behavio
Externí odkaz:
https://doaj.org/article/d471ca80753445bdaf980a16fb7f6d11
Autor:
P. A. Sallago
Publikováno v:
Anales (Asociación Física Argentina), Vol 35, Iss 2, Pp 38-52 (2024)
The secular variation of the geomagnetic field is the temporal variation that takes place in the field on time scales between few years to hundreds or thousands of years. On the other hand, impulses or ”geomagnetic jerks” indicate a rapid change
Externí odkaz:
https://doaj.org/article/b9dd23dfba4f40d6af16322a58f85995
Akademický článek
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Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
Recent studies on the behavior of geomagnetic secular acceleration (SA) pulses have provided a basis for understanding the dynamic processes in the Earth’s core. This analysis statistically evaluates the evolution of the SA pulse amplitude and posi
Externí odkaz:
https://doaj.org/article/b4a9e27e6a914457abaf201ef9e20371
Publikováno v:
Earth, Planets and Space, Vol 76, Iss 1, Pp 1-14 (2024)
Abstract High-resolution dating of volcanic rocks is the foundation for understanding the evolution of volcanoes and for estimating possible hazards. However, dating is often difficult for submarine volcanoes, where radiocarbon or other dating is fre
Externí odkaz:
https://doaj.org/article/6792830576894737868abd7f273a03bd
Publikováno v:
Earth, Planets and Space, Vol 76, Iss 1, Pp 1-17 (2024)
Abstract Construction of regional geomagnetic secular variation curves for the last several tens of thousands of years is important for understanding the behavior of non-dipole fields and applications to geochronology. Around Japan, secular variation
Externí odkaz:
https://doaj.org/article/171f7ed91c6c4880806a889a0195bca2
Publikováno v:
Austrian Journal of Earth Sciences. 2018, Vol. 111 Issue 1, p48-63. 16p.
Autor:
B. A. Buffett
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 6, Pp n/a-n/a (2024)
Abstract Fluctuations in the geomagnetic field occur over a broad range of timescales. Short‐period fluctuations are called secular variation, whereas excursions and reversals are viewed as anomalous transient events. An open question is whether di
Externí odkaz:
https://doaj.org/article/29f47d467d4d4537af2b5fee9f89abc9