Aerosol Nadir Retrieval From Nomad/Uvis On Board Exomars Tgo
Y. Willame, A. C. Vandaele, J. Erwin, A. Picciali, C. Depiesse, F. Daerden, L. Neary, I. Thomas, B. Ristic,
Royal Belgian Institute For Space Aeronomy (Iasb-Bira), 1180 Brussels, Belgium; M. J. Wolff, Space Science
Institute, Boulder, Co, Usa; J. Mason, M. R. Patel, School Of Physical Sciences, The Open University, Milton
Keynes, Uk; G. Bellucci, Istituto Di Astrofisica E Planetologia Spaziali (Iaps/Inaf), Rome, Italy; J. J Lopezmoreno, Instituto De Astrofisica De Andalucia (Iaa/Csic), Granada, Spain.

Introduction:
Aerosols Are Key Components Of Martian
Radiative Transfer. Airborne Dust Is Ubiquitous On The
Planet And Influences The Climate By Absorbing
Shortwave Radiation, Resulting In A Local Warming Of
The Atmosphere. Dust Loading Follow A Cycle Where It
Is Present In Lower Concentration During The “Cooler”
Aphelion Season, And Shows A Repeatable Pattern From
Year To Year [Smith 2009]. While For The Second Part
Of The Year, I.E. During The “Warmer” Perihelion Season, The Dust Loading Is Larger. The Warmer Temperatures Favor The Formation Of Many Local Dust Storms,
Some Of Can Grow To A Regional Scale Or Even Become Global. The Period Ls = 200-300° Is Sometimes
Called The “Dust Storm Season” And The Formation Of
These Storms Can Arise Differently Each Year, Introducing An Important Interannual Variability [Smith
2008].