Cataloging Mesospheric Clouds using EMM EMUS/EXI Images

<p>Martian mesospheric clouds are observed in the Martian atmosphere around 50 to 100 km. H<sub>2</sub>O and CO<sub>2</sub> clouds are known to form in the mesosphere. We present a systematic study of mesospheric clouds cataloged from images at a wavelength of ~180 nm acquired by the Emirates Ultraviolet Spectrometer (EMUS) instrument onboard the Emirates Mars Mission (EMM) Hope spacecraft. The study is focused on data from the mission's early Science Phase, when clouds are known to be abundant in aphelion season, and it provides insight into the distribution and pattern of mesospheric clouds, as well as showcasing corresponding near-simultaneous images of mesospheric clouds apparent in EMM’s Emirates eXploration Imager (EXI) images at a longer UV wavelength. This work is expected to provide valuable information on understanding the coupling between the lower and upper atmosphere.</p> <p> </p> <p> </p>