Title :

Retrieval of aerosol profiles combining sunphotometer and ceilometer measurements in grasp code

Author(s) :

Roman, Roberto [Auteur]
Universidad de Granada = University of Granada [UGR]
Universidad de Valladolid [Valladolid] [UVa]
Benavent-Oltra, J. A. [Auteur]
Universidad de Granada = University of Granada [UGR]
Casquero-Vera, J. A. [Auteur]
Universidad de Granada = University of Granada [UGR]
Lopatin, Anton [Auteur]
Université de Lille
Cazorla, Alberto [Auteur]
Universidad de Granada = University of Granada [UGR]
Lyamani, Hassan [Auteur]
Universidad de Granada = University of Granada [UGR]
Denjean, Cyrielle [Auteur]
Centre national de recherches météorologiques [CNRM]
Fuertes, David [Auteur]
Université de Lille
Perez-Ramirez, Daniel [Auteur]
Universidad de Granada = University of Granada [UGR]
Torres Rodriguez, Benjamin [Auteur]
Université de Lille
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Toledano, Carlos [Auteur]
Universidad de Valladolid [Valladolid] [UVa]
Doubovik, Oleg [Auteur]
Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA]
Cachorro, Victoria E. [Auteur]
Universidad de Valladolid [Valladolid] [UVa]
De Frutos, Angel M. [Auteur]
Universidad de Valladolid [Valladolid] [UVa]
Olmo, F. J. [Auteur]
Universidad de Granada = University of Granada [UGR]
Universidad de Valladolid [Valladolid] [UVa]
Alados-Arboledas, Lucas [Auteur]
Universidad de Granada = University of Granada [UGR]
Universidad de Valladolid [Valladolid] [UVa]

Journal title :

Atmospheric Research

Abbreviated title :

Atmos. Res.

Volume number :

204

Publication date :

2018-05-15

ISSN :

0169-8095

English keyword(s) :

GRASP
Ceilometer
Aerosol
Profiling
Photometer
Aerosol volume concentration

HAL domain(s) :

Physique [physics]

English abstract : [en]

In this paper we present an approach for the profiling of aerosol microphysical and optical properties combining ceilometer and sun/sky photometer measurements in the GRASP code (General Retrieval of Aerosol and Surface ...
Show more >In this paper we present an approach for the profiling of aerosol microphysical and optical properties combining ceilometer and sun/sky photometer measurements in the GRASP code (General Retrieval of Aerosol and Surface Properties). For this objective, GRASP is used with sun/sky photometer measurements of aerosol optical depth (AOD) and sky radiances, both at four wavelengths and obtained from AErosol RObotic NETwork (AERONET), and ceilometer measurements of range corrected signal (RCS) at 1064 nm. A sensitivity study with synthetic data evidences the capability of the method to retrieve aerosol properties such as size distribution and profiles of volume concentration (VC), especially for coarse particles. Aerosol properties obtained by the mentioned method are compared with airborne in-situ measurements acquired during two flights over Granada (Spain) within the framework of ChArMEx/ADRIMED (Chemistry-Aerosol Mediterranean Experiment/Aerosol Direct Radiative Impact on the regional climate in the MEDiterranean region) 2013 campaign. The retrieved aerosol VC profiles agree well with the airborne measurements, showing a mean bias error (MBE) and a mean absolute bias error (MABE) of 0.3 μm3/cm3 (12%) and 5.8 μm3/cm3 (25%), respectively. The differences between retrieved VC and airborne in-situ measurements are within the uncertainty of GRASP retrievals. In addition, the retrieved VC at 2500 m a.s.l. is shown and compared with in-situ measurements obtained during summer 2016 at a high-atitude mountain station in the framework of the SLOPE I campaign (Sierra Nevada Lidar AerOsol Profiling Experiment). VC from GRASP presents high correlation (r = 0.91) with the in-situ measurements, but overestimates them, MBE and MABE being equal to 23% and 43%.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Collections :

• Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518

Submission date :

2024-01-30T11:45:56Z
2024-02-26T09:01:48Z