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\begin{document}

\title{MANGO: An optical network to study the dynamics of the Earth's upper
atmosphere}



\author[1]{Asti Bhatt}%
\author[2]{Brian J Harding}%
\author[3]{Jonathan J. Makela}%
\author[4]{Luis Navarro}%
\author[5]{Leslie Lamarche}%
\author[1]{Todd Valentic}%
\author[1]{Elizabeth Kendall}%
\author[6]{Padma Venkatraman}%
\affil[1]{SRI International}%
\affil[2]{University of California, Berkeley}%
\affil[3]{University of Illinois at Urbana Champaign}%
\affil[4]{Space Weather Technology, Research and Education Center, University of Colorado}%
\affil[5]{SRI International, Menlo Park CA, USA}%
\affil[6]{University of California Berkeley}%


\vspace{-1em}



  
  \date{June 13, 2024}


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\begin{abstract}
The Mid-latitude All-sky-imaging Network for Geophysical Observations
(MANGO) employs a combination of two powerful optical techniques used to
observe the dynamics of Earth's upper atmosphere: wide-field imaging and
high-resolution spectral interferometry. Both techniques observe the
naturally occurring airglow emissions produced in the upper atmosphere
at 630.0- and 557.7-nm wavelengths. Instruments are deployed to sites
across the continental United States, providing the capability to make
measurements spanning mid to sub-auroral latitudes. The current
instrument suite in MANGO has five all-sky imagers observing the
630.0-nm emission (integrated between \textasciitilde{}250-400 km
altitude), four all-sky imagers observing the 557.7-nm emission
(integrated between \textasciitilde{}97-100 km altitude), and three
Fabry-Perot interferometers measuring neutral winds and temperature
using both these wavelengths. The deployment of additional imagers is
planned. The network makes unprecedented observations of the nighttime
thermosphere-ionosphere dynamics with the expanded field-of-view
provided by the distributed network of instruments. This paper describes
the network, the instruments, the data products, and first results from
this effort.%
\end{abstract}%



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