Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Denny M. Oliveira"'
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
The impact of interplanetary (IP) shocks on the Earth’s magnetosphere can greatly disturb the geomagnetic field and electric currents in the magnetosphere-ionosphere system. At high latitudes, the current systems most affected by the shocks are the
Externí odkaz:
https://doaj.org/article/67092dc70bb1493385f965af8ec7ea0c
Autor:
Denny M. Oliveira
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
Externí odkaz:
https://doaj.org/article/91df0d16a0494a0fac7c3e44529973cb
Autor:
Denny M. Oliveira
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
Interplanetary shocks are disturbances commonly observed in the solar wind. IP shock impacts can cause a myriad of space weather effects in the Earth’s magnetopause, inner magnetosphere, ionosphere, thermosphere, and ground magnetic field. The shoc
Externí odkaz:
https://doaj.org/article/c0ccd3fca11544059c6ae5dfaa3ab69c
Autor:
Denny M. Oliveira, Daniel T. Welling, Hyomin Kim, Christine E. Gabrielse, Jone Peter Reistad, Karl Laundal
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
Externí odkaz:
https://doaj.org/article/189319afdb694e1f86867220c5ed555a
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
We have identified nearly 1,000 onsets using two pairs of hemispheric conjugate ground magnetometers where the onset is defined based on a sharp decline in the H component of the magnetic field at a ground magnetometer station. Specifically, we used
Externí odkaz:
https://doaj.org/article/9b4844bfcdbd44dfac8fb5c5c61d67e1
Publikováno v:
Earth, Planets and Space, Vol 72, Iss 1, Pp 1-9 (2020)
Abstract Being footprints of major magnetic storms and hence major solar eruptions, mid- to low-latitude aurorae have been one of the pathways to understand solar–terrestrial environments. However, it has been reported that aurorae are also occasio
Externí odkaz:
https://doaj.org/article/58579a1871d64f4392845ed0805ac40b
Autor:
Denny M. Oliveira, Eftyhia Zesta, Piyush M. Mehta, Richard J. Licata, Marcin D. Pilinski, W. Kent Tobiska, Hisashi Hayakawa
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 8 (2021)
Satellites, crewed spacecraft and stations in low-Earth orbit (LEO) are very sensitive to atmospheric drag. A satellite’s lifetime and orbital tracking become increasingly inaccurate or uncertain during magnetic storms. Given the planned increase o
Externí odkaz:
https://doaj.org/article/10f5089010b34829b40055fa317d87ce
Autor:
Hisashi Hayakawa, Denny M Oliveira, Margaret A Shea, Don F Smart, Seán P Blake, Kentaro Hattori, Ankush T Bhaskar, Juan J Curto, Daniel R Franco, Yusuke Ebihara
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 517:1709-1723
In late 1940 March, at least five significant solar flares were reported. They likely launched interplanetary coronal mass ejections (ICMEs), and were associated with one of the largest storm sudden commencements (SSCs) since 1868, resulting in space
Autor:
Ankush Bhaskar, Yusuke Ebihara, Alexei A. Pevtsov, Hisashi Hayakawa, N. V. Karachik, Denny M. Oliveira
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 497:5507-5517
Major solar eruptions occasionally cause magnetic superstorms on the Earth. Despite their serious consequences, the low frequency of their occurrence provides us with only limited cases through modern instrumental observations, and the intensities of
Autor:
Brian J. Anderson, Yining Shi, Denny M. Oliveira, Delores J. Knipp, Eftyhia Zesta, Tomoko Matsuo
Publikováno v:
Space Weather. 17:1659-1673