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\begin{document}

\title{Studies of the 2018/Mars Year 34 Planet-Encircling Dust Storm}



\author[1]{Scott D. Guzewich}%
\author[2]{Anna A. Fedorova}%
\author[3]{Melinda A Kahre}%
\author[4]{Anthony D. Toigo}%
\affil[1]{NASA Goddard Spaceflight Center}%
\affil[2]{Space Research Institute}%
\affil[3]{NASA Ames Research Center}%
\affil[4]{Johns Hopkins University Applied Physics Laboratory}%


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  \date{May 22, 2024}


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\begin{abstract}
Mars planet-encircling or global dust storms are an iconic and enigmatic
feature of the Red Planet. Occurring every few Mars Years, on average,
they are a stochastic process in the otherwise largely repeatable annual
cycle of martian weather. In 2018 (Mars Year 34 in the calendar of
Clancy et al. {[}2000{]}), an international fleet of spacecraft, 6
orbiters and 2 rovers, observed the most recent global dust storm. This
introduction and the articles of this special collection describe the
evolution and impacts of the storm from the surface to the exosphere,
compare this storm to previous global dust storms, identify new
phenomena never-before seen in such storms, and attempt to determine how
and when global dust storms develop.%
\end{abstract}%



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