@Article{HardingMaQiFiMaNoWr:2017:AtScEf,
author = "Harding, Brian. J. and Makela, Jonathan J. and Qin, Jianqi and
Fisher, Daniel J. and Martins, Carlos R. and Noto, John and
Wrasse, Cristiano Max",
affiliation = "{University of Illinois at Urbana-Champaign} and {University of
Illinois at Urbana-Champaign} and {University of Illinois at
Urbana-Champaign} and {University of Illinois at Urbana-Champaign}
and {Boston University} and Computational Physics, Inc and
{Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Atmospheric scattering effects on ground-based measurements of
thermospheric vertical wind, horizontal wind, and temperature",
journal = "Journal of Geophysical Research: Space Physics",
year = "2017",
volume = "122",
number = "7",
pages = "7654--7669",
month = "July",
abstract = "Ground-based Fabry-Perot interferometers routinely observe large
vertical winds in the thermosphere, sometimes reaching over
100m/s. These observations, which use the Doppler shift of the
630.0nm airglow emission to estimate the wind, have long been at
odds with theory. We present a summary of 5years of data from the
North American Thermosphere-Ionosphere Observing Network, showing
that large apparent vertical winds are a persistent feature at
midlatitudes during geomagnetic storms. We develop a radiative
transfer model which demonstrates that these measurements can be
explained as an artifact of the scattering of light in the
troposphere. In addition to the example from midlatitudes, we
apply the model to low latitudes, where we show that the
postsunset vertical winds routinely measured over Brazil are
explained in part by atmospheric scattering. Measurements of the
horizontal wind and temperature are also affected, with errors
reaching 400m/s and 200K in the most extreme cases.",
doi = "10.1002/2017JA023942",
url = "http://dx.doi.org/10.1002/2017JA023942",
issn = "2169-9402",
language = "en",
targetfile = "harding_atmospheric.pdf",
urlaccessdate = "27 abr. 2024"
}