Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Nicholas Ssessanga"'
Publikováno v:
Earth, Planets and Space, Vol 76, Iss 1, Pp 1-13 (2024)
Abstract For the first time using computerized ionospheric tomography (CIT) and leveraging ultra-dense slant total electron content (STEC) measurements derived from two ground-based Global Navigation Satellite System (GNSS) receiver networks in Japan
Externí odkaz:
https://doaj.org/article/7be160721b0640338a9a4d2293884a2f
Publikováno v:
Earth, Planets and Space, Vol 74, Iss 1, Pp 1-17 (2022)
Abstract Observations and theoretical analysis on the night-time mid-latitude ionospheric irregularities support the postulation of frequently coupled E and F regions. In this paper, we attempt at asserting this notion while using total electron cont
Externí odkaz:
https://doaj.org/article/876274a2a310457aa7ade643f03f2610
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-13 (2021)
Abstract This paper demonstrates and assesses the capability of the advanced three-dimensional (3-D) ionosphere tomography technique, during severe conditions. The study area is northeast Asia and quasi-Japan-centred. Reconstructions are based on tot
Externí odkaz:
https://doaj.org/article/55459072d44e47b49b763c4721e5922c
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 34, Iss 1, Pp 7-17 (2017)
In South Korea, there are about 80 Global Positioning System (GPS) monitoring stations providing total electron content (TEC) every 10 min, which can be accessed through Korea Astronomy and Space Science Institute (KASI) for scientific use. We appl
Externí odkaz:
https://doaj.org/article/f641d8a5e94344d0b83259e378c33ea9
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 32, Iss 3, Pp 181-187 (2015)
Storm sudden commencements (SSCs) occur due to a rapid compression of the Earth's magnetic field. This is generally believed to be caused by interplanetary (IP) shocks, but with exceptions. In this paper we explore possible causes of SSCs other tha
Externí odkaz:
https://doaj.org/article/70f8cb5cb27c41a4b8790cbbfba8a00d
Publikováno v:
Annals of Geophysics, Vol 58, Iss 2 (2015)
In this paper the South African Ionospheric Map (SAIM) is upgraded with the usage of recent International Reference Ionosphere (IRI)-2012 model and South African Bottomside Model (SABIM) version 5 and validated for the critical frequency (foF2) of th
Externí odkaz:
https://doaj.org/article/602f76248d8e4fc0ae668571d2e69113
Autor:
Yaqi Jin, Wojciech Jacek Miloch, Daria Kotova, Knut Stanley Jacobsen, Đorđe Stevanovic, Lasse Boy Novock Clausen, Nicholas Ssessanga, Federico Da Dalt
We develop a climatological model for the Northern Hemisphere based on a long-term dataset (2010-2021) of the rate of change of the total electron content (TEC) index (ROTI) maps from the International GNSS Service (IGS). The IGS ROTI maps are daily
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc79de13ddc6cd724b451ced2dae3f4f
https://doi.org/10.22541/essoar.168167136.67911863/v1
https://doi.org/10.22541/essoar.168167136.67911863/v1
Publikováno v:
Journal of Geophysical Research: Space Physics. 128
Geomagnetic conjugate mid-latitude nighttime ionospheres are frequently simultaneously populated with electrified nighttime medium-scale traveling ionospheric disturbances (MSTIDs). Earlier observations and theoretical analysis have underscored the i
Autor:
Chalachew Kindie Mengist, Kyong‐Hwan Seo, Yong Ha Kim, S. Eswaraiah, Nicholas Ssessanga, Young‐Sil Kwak
Publikováno v:
Journal of Geophysical Research: Space Physics. 128
Publikováno v:
Journal of the Korean Physical Society. 79:785-794
The four-dimensional variational (4D-VAR) technique, originally developed for weather forecasting applications, has been utilized in a data-assimilated model to estimate rocket exhaust emission from observed ionospheric disturbances. In this study, w