@Article{SalazarPrad:2022:SuOrDu,
author = "Salazar, Francisco Javier Tip{\'a}n and Prado, Antonio Fernando
Bertachini de Almeida",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "Sun-synchronous orbital dust ring to reduce climate change at the
polar caps",
journal = "European Physical Journal Plus",
year = "2022",
volume = "137",
number = "6",
pages = "e710",
month = "June",
abstract = "As a geoengineering strategy to attenuate the solar insolation and
offset the impacts of global warming at the polar regions, this
study proposes a Sun-pointing vertical Earth ring comprised of
dust grains to shade mainly the Earths poles and to reduce climate
change at the polar regions. A dust ring from 1.1 to 1.17 Earth
radii passing above both poles of the Earth is designed, taking
into account the effects of solar radiation pressure and the
Earths J2 oblateness perturbation. Perturbations including
atmospheric drag, third-body gravitational forces and shaded
regions are neglected. A family of circular polar orbits, with
inclinations about 98 \∘, is considered for the passive
cloud of particles with radii less than 50 \μm. We state
that the coupled effect of solar radiation pressure and J2
perturbation in the orbital dynamics of small particles is
essential to ensure that the side of the dust ring will be
pointing to the Sun. An analytical ring shadow model is used to
evaluate its performance and to estimate the mass of the ring. The
results of this study shows that the attenuation of solar
isolation at the polar regions is about twice the attenuation
computed in the rest of the regions of the Earth. Finally, an
estimate of about 5.5 × 10 12 kg of material is computed as the
total mass required to offset the impacts of climate change at the
Earths poles.",
doi = "10.1140/epjp/s13360-022-02866-6",
url = "http://dx.doi.org/10.1140/epjp/s13360-022-02866-6",
issn = "2190-5444",
language = "en",
targetfile = "Salazar-Prado2022_Article_Sun-synchronousOrbitalDustRing.pdf",
urlaccessdate = "29 jun. 2024"
}