Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Ciarán D. Beggan"'
Modelling electrified railway signalling misoperations during extreme space weather events in the UK
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract Space weather has the potential to impact ground-based technologies on Earth, affecting many systems including railway signalling. This study uses a recently developed model to analyse the impact of geomagnetically induced currents on railwa
Externí odkaz:
https://doaj.org/article/59cbb228d8d8419ebc18bead0bf015ea
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
Space weather events can have damaging effects on ground-based infrastructure. Geomagnetically induced currents (GIC) caused by rapid magnetic field fluctuations during geomagnetic storms can negatively affect power networks, railways as well as navi
Externí odkaz:
https://doaj.org/article/e64dfcf3262143219bcff976706c2bde
Autor:
Ciarán D. Beggan
Publikováno v:
Earth, Planets and Space, Vol 74, Iss 1, Pp 1-11 (2022)
Abstract The International Geomagnetic Reference Field (IGRF) is a multi-institute model of the Earth’s magnetic field, compactly described by sets of up to 195 spherical harmonic (Gauss) coefficients to degree and order 13, which allows the contin
Externí odkaz:
https://doaj.org/article/e6ff17c6704d494a81413ae0083aad55
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
Extreme space weather events can have large impacts on ground-based infrastructure important to technology-based societies. Machine learning techniques based on interplanetary observations have proven successful as a tool for forecasting global geoma
Externí odkaz:
https://doaj.org/article/db396498366045ee979004a27a3a17f9
Autor:
Fernando Benitez-Paez, Vanessa da Silva Brum-Bastos, Ciarán D. Beggan, Jed A. Long, Urška Demšar
Publikováno v:
Movement Ecology, Vol 9, Iss 1, Pp 1-19 (2021)
Abstract Background Migratory animals use information from the Earth’s magnetic field on their journeys. Geomagnetic navigation has been observed across many taxa, but how animals use geomagnetic information to find their way is still relatively un
Externí odkaz:
https://doaj.org/article/defeb28f8a62403ba56a9acaa066c18d
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-21 (2021)
Abstract The three candidate models submitted by the British Geological Survey for the 13th generation International Geomagnetic Reference Field are described. These DGRF and IGRF models are derived from vector and scalar magnetic field data from the
Externí odkaz:
https://doaj.org/article/bed032adac154e7ebaea840c1c1519c9
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-22 (2021)
Abstract We present geomagnetic main field and secular variation time series, at 300 equal-area distributed locations and at 490 km altitude, derived from magnetic field measurements collected by the three Swarm satellites. These Geomagnetic Virtual
Externí odkaz:
https://doaj.org/article/7120ec64ba4f47658602c62d202ec659
Publikováno v:
Earth, Planets and Space, Vol 72, Iss 1, Pp 1-16 (2020)
Abstract Earth’s internal magnetic field is generated through motion of the electrically conductive iron-alloy fluid comprising its outer core. Temporal variability of this magnetic field, termed secular variation (SV), results from two processes:
Externí odkaz:
https://doaj.org/article/b07828e2682440e2a5a2551f1b75a878
Publikováno v:
Earth, Planets and Space, Vol 71, Iss 1, Pp 1-16 (2019)
Abstract By assuming that changes in the magnetic field in the Earth’s outer core are advection-dominated on short timescales, models of the core surface flow can be deduced from secular variation. Such models are known to be under-determined and t
Externí odkaz:
https://doaj.org/article/6fb6677ea14f43e3b28b596cf1daefe2
Spatial-temporal interpolation of satellite geomagnetic data to study long-distance animal migration
Autor:
Aranya Iyer, Fernando Benitez-Paez, Vanessa Brum-Bastos, Ciarán D. Beggan, Urška Demšar, Jed A. Long
Publikováno v:
Ecological Informatics. 72:101888