@InProceedings{DalLagoMesqBragMend:2019:UnCMSp,
author = "Dal Lago, Alisson and Mesquita, A. L. and Braga, Carlos Roberto
and Mendon{\c{c}}a, Rafael Rodrigues Souza de",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Trinity
College Dublin} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Uncertainties in CME speed estimates and their impacts for CME
travel time to 1AU",
year = "2019",
organization = "IUGG General Assembly, 27.",
abstract = "Coronal mass ejections (CMEs) are magnetic flux ropes originating
in the Sun which are erupted and have the potential to impact the
Earth and other planets in the solar system. CMEs are known to be
one of the main drivers of Space Weather because they are
important sources of out-of-the-ecliptic interplanetary magnetic
fields. In the case of the Earths magnetosphere these magnetic
fields are the drivers of magnetic reconnection which lead to
geomagnetic storms. CME speed estimates near de Sun are made using
coronagraph remote sensing images. Several studies have addressed
the challenge involved in understanding the dynamics of these
eruptive events throughout their evolution in the interplanetary
space. The first challenge is to correctly measure dynamic
properties of these CME events. Manual measurements are confronted
with pseudo-automatic and even fully automatic measurement
approaches. It is worth noticing that very few studies have
addressed uncertainty estimates for CME speed measurements. In
this work, we present a new approach to estimate CME speed
uncertainties and we investigate the impact of these uncertainties
in the CME travel time to 1 AU of these events.",
conference-location = "Montr{\'e}al, Canada",
conference-year = "08-18 July",
urlaccessdate = "28 abr. 2024"
}