Building The Long-Term, Multi-Instrument Record Of Large-Scale Dust Events On Mars L. Montabone, Laboratoire De Météorologie Dynamique, Ipsl, Sorbonne Université, Paris, France, And Space Science Institute, Boulder, Co, Usa (Lmontabone@Spacescience.Org), B. Cantor, Malin Space Science Systems, San Diego, Ca, Usa, F. Forget, E. Millour, Laboratoire De Météorologie Dynamique, Ipsl, Sorbonne Université, Paris, France, D. Kass, A. Kleinboehl, Jet Propulsion Laboratory, California Institute Of Technology, Pasadena, Ca, Usa, T. Lombard, Elisa Aerospace, Saint-Quentin, France, R. Majid Khalfan Al Bedwawi, United Arab Emirates University, Al Ain, Uae, M. D. Smith, Goddard Space Flight Center, Greenbelt, Md, Usa, M. Wolff, Space Science Institute, Boulder, Co, Usa. Introduction: We Have Had Almost Uninterrupted Observations Of Dust From Orbit For More Than 20 Years To Date. Missions Like Mars Global Surveyor (Mgs), Mars Odyssey (Mo), Mars Express (Mex), And Mars Reconnaissance Orbiter (Mro) Have Been Contributing To Accumulate A Long-Term, Multi-Instrument Record Of Dust Observations Yet To Be Fully Analysed. More Recently, Instruments Aboard The Trace Gas Orbiter (Tgo), And The Emirates Mars Mission (Emm, Or “Hope”) Have Joined The Effort To Observe Dust On Mars And Extend The Long-Term Record Further. Sporadic Dust Observations Have Also Been Provided By The Mars Atmosphere And Volatile Evolution (Maven) Mission, The Mars Orbiter Mission