Vertical profiles of shortwave and longwave aerosol direct radiative

7th International Workshop on Sand/Duststorms and Associated Dustfall
2-4 December 2013, Frascati (Rome), Italy
First Retrievals Of Aerosol Properties Derived From Measurements
Of The New Airborne Sunphotometer PLASMA During The
Campaigns SHADOWS And ChArMEx.
Torres, B.a,*, Blarel, L.a, Goloub, P.a, Mallet, M.b,c, Bourrianne, T.d, Tanré, D.a , Dulac, F.e, Dubovik,
O.a, Verwaerde, C.a, Podvin, T.a, Mortier, A.a, Derimian, Y.a, Guerrero-Rascado, J. L.f,g, AladosArboledas,L.f,g, Granados-Muñoz, M.J.f,g, Bravo-Aranda, J. A.f,g, Roberts, G.d, Monboisse, G.d,
Chazette, P.e, Totems, J.e, Boytard, M.-L.e, and Fuertes, D.a
a
Laboratoire d’Optique Atmospherique, (CNRS – Universite des Sciences et Technologies de Lille,
59655 Villeneuve d’Ascq, France)
b
Université de Toulouse, UPS, LA (Laboratoire d'Aérologie), (Toulouse, France)
c
CNRS, LA (Laboratoire d'Aérologie), (Toulouse, France)
d
CNRM/GAME, (Météo-France/CNRS, Toulouse, France)
e
Laboratoire des Sciences du Climat et de l'Environnement, (CEA-CNRS-UVSQ, Gif-sur-Yvette,
France)
f
Dpt. Applied Physics, (Faculty of Sciences, University of Granada, Granada, Spain)
g
Andalusian Institute for Earth System Research (IISTA), (Granada, Spain)
*
[email protected]
The new airborne sun-tracking photometer PLASMA (15 channels between (0.34–2.25 μm) has
been used in order to obtained aerosol optical depth measurements in several flights during the
campaigns: SHADOWS (M’Bour-Dakar in Senegal, March-April 2013) and ChArMEx (based in
Cagliari along Mediterranean Sea, June-July 2013). As a consequence of performing optical depth
measurements at different heights aerosol extinction vertical profiles have been also obtained during
every landing/taking off and during pre-schedule vertical profiles. These profiles have been
compared to ground based lidar extinction profiles (e.g. lidar at M’Bour in Dakar campaign and
lidar based in Granada and Minorca during Charmex campaign) and to extinction measurement
provided by CAPs (Aerodyne CAPS Pmex (Cavity Attenuated Phase Shift ) optical aerosol
extinction spectrometer) which was on board together with PLASMA. Eventually, two desert dust
events have been detected and they are specifically analyzed in the last part of the work: M’Bour
5th-8th April 2013 and Granada-Minorca 16th-17th of June. The study also includes aerosol size
distribution obtained inverting aerosol optical depth at different heights using AERONET retrieval
code (Dubovik and King, 2000) adapted for inverting only spectral AOD.