Aerosol optics model for black carbon applicable to remote sensing, chemical data assimilation, and climate modelling
Artikel i vetenskaplig tidskrift, 2021

Aerosol optics models are an integral part of of climate models and of retrieval methods for global remote sensing observations. Such large-scale environmental applications place tight constraints on the affordable model complexity, which are difficult to reconcile with the considerable level of detail that is needed to capture the sensitivity of optical properties to morphological aerosol characteristics. Here, we develop a novel core-grey-shell dimer model and demonstrate its potential for reproducing radiometric and polarimetric properties of black carbon aerosols. The depolarisation is mainly sensitive to the relative size of the monomers, while the optical cross sections depend on the core-shell partitioning of black carbon. The optimum choice of these parameters is fairly stable across particle sizes and soot volume fraction, as is demonstrated by comparison with a more realistic coated aggregate model.

Författare

Michael Kahnert

SMHI

Chalmers, Rymd-, geo- och miljövetenskap, Mikrovågs- och optisk fjärranalys

Franz Kanngiesser

Chalmers, Rymd-, geo- och miljövetenskap, Mikrovågs- och optisk fjärranalys

Optics Express

1094-4087 (ISSN)

Vol. 29 7 10639-10658

Ämneskategorier

Meteorologi och atmosfärforskning

Annan fysik

Naturgeografi

DOI

10.1364/OE.422523

PubMed

33820195

Mer information

Senast uppdaterat

2021-04-16