@Article{YoonLPGMCSDP:2017:EqPlBu,
author = "Yoon, Moonseok and Lee, Jiyun and Pullen, Sam and Gillespie,
Joseph and Mathur, Navin and Cole, Rich and Souza, Jonas Rodrigues
de and Doherty, Patricia and Pradipta, Rezy",
affiliation = "{Korea Advanced Institute of Science and Technology} and {Korea
Advanced Institute of Science and Technology} and {Stanford
University} and {Federal Aviation Administration} and {Mirus
Technology} and {Mirus Technology} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Boston College} and {Boston
College}",
title = "Equatorial plasma bubble threat parameterization to support GBAS
operations in the Brazilian region",
journal = "Navigation: Journal of the Institute of Navigation",
year = "2017",
volume = "64",
number = "3",
pages = "309--321",
abstract = "The Brazil ionospheric study project aims to develop a new
ground-based augmentation system (GBAS) ionospheric threat model
to better reflect Brazils low-latitude conditions. Data processing
from the global navigation satellite system for 123 active
ionospheric days identified 1017 anomalous ionospheric gradients
caused by nighttime equatorial plasma bubbles (EPBs). A
significant number of gradients, including the largest verified
gradient of 850.7 mm/km, exceed the upper bound (375425 mm/km) of
the conterminous United States (CONUS) threat model. This paper
defines a series of parameters to model the geometry of EPBs. A
maximum ionospheric delay drop of 35 m and a transition zone
between 20 and 450 km are estimated for EPBs that move roughly
eastward and parallel to the geomagnetic equator with speeds
between 40 and 250 m/s. These parameters are key to the
development of a GBAS ionospheric mitigation and safety case for
operational approval in Brazil and other lowlatitude locations.",
doi = "10.1002/navi.203",
url = "http://dx.doi.org/10.1002/navi.203",
issn = "0028-1522",
language = "en",
targetfile = "Yoon_et_al-2017-Navigation.pdf",
urlaccessdate = "04 jun. 2024"
}