This paper evaluates the relationship between the cloud modification factor (CMF) in the ultraviolet erythemal range and the cloud optical depth (COD) retrieved from the Aerosol Robotic Network (AERONET) “cloud mode” algorithm under overcast cloudy conditions (confirmed with sky images) at Granada, Spain, mainly for non-precipitating, overcast and relatively homogenous water clouds. Empirical C...

More than 2 years of columnar atmospheric aerosol measurements (2006–2009) at the Tamanrasset site (22.79 N, 5.53 E, 1377 m a.s.l.), in the heart of the Sahara, are analysed. Aerosol Robotic Network (AERONET) level 2.0 data were used. The KCICLO (K is the name of a constant and ciclo means cycle in Spanish) method was applied to a part of the level 1.5 data series to improve the quality of the ...

To validate the iCOR atmospheric correction algorithm applied to Sentinel-3 Ocean and Land Color Instrument (OLCI), Top-of-Atmosphere (TOA) observations over land, globally retrieved Aerosol Optical Thickness (AOT), Top-of-Canopy (TOC) reflectance, Vegetation Indices (VIs) were intercompared with (i) AERONET AOT AERONET-based TOC reflectance simulations, (ii) RadCalNet surface observations, (ii...

Representing brown carbon absorption, photobleaching, and secondary organic aerosol formation in wildfire emissions results improved agreement between WRF-Chem simulations AERONET observations.

Recent observations reveal that dust storms are increasing in the western USA, posing imminent risks to public health, safety, and economy. Much of observational evidence has been obtained from ground-based platforms visual interpretation satellite imagery limited regions. Comprehensive satellite-based long-term aerosol records still lacking. In an effort develop such a dataset, we compared eva...

Size-segregated mass distributions of aerosols over Eastern Mediterranean: seasonal variability and comparison with AERONET columnar size-distributions E. Gerasopoulos, E. Koulouri, N. Kalivitis, G. Kouvarakis, S. Saarikoski, T. Mäkelä, R. Hillamo, and N. Mihalopoulos Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, P.O. Box 2208, 71003 Heraklion, Greec...