Determination of polar stratospheric cloud particle refractive indices by use of in situ optical measurements and T-matrix calculations (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Determination of polar stratospheric cloud particle refractive indices by use of in situ optical measurements and T-matrix calculations (Articolo in rivista) (literal)

Anno

• 2005-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1364/AO.44.003302 (literal)

Alternative label

• Scarchilli C.,1; A. Adriani,2; F. Cairo,1; G. Di Donfrancesco,3; C. Buontempo,1; M. Snels,1; M. L. Moriconi,1; T. Deshler,4; N. Larsen,5; B. Luo,6; K. Mauersberger,7; J. Ovarlez,8; J. Rosen,4; J. Schreiner,7 (2005)
  Determination of polar stratospheric cloud particle refractive indices by use of in situ optical measurements and T-matrix calculations
  in Applied optics
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Scarchilli C.,1; A. Adriani,2; F. Cairo,1; G. Di Donfrancesco,3; C. Buontempo,1; M. Snels,1; M. L. Moriconi,1; T. Deshler,4; N. Larsen,5; B. Luo,6; K. Mauersberger,7; J. Ovarlez,8; J. Rosen,4; J. Schreiner,7 (literal)

Pagina inizio

• 3302 (literal)

Pagina fine

• 3311 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 44 (literal)

Rivista

• Applied optics (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 16 (literal)

Note

• ISI Web of Science (WOS) (literal)
• Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1.Institute of Atmospheric Sciences and Climate, Italian National Research Council, Via Fosso del Cavaliere, 100-00133 Rome, Italy. 2.Institute for Interplanetary Space Physics, Istituto Nazionale di Astrofisica, Rome, Italy. 3.Ente per le Nuove Technologie l'Energia e l'Ambiente, Sezione Clima, Via Anguillarese 301, 00060 Santa Maria di Galeria, Rome, Italy. 4.Department of Atmospheric Science, College of Engineering, University of Wyoming, 1000 East University Avenue, Laramie, Wyoming 82071. 5.Danish Meteorological Institute, Division of Middle Atmosphere Research, Lyngbyvej 100, 2100 Copenhagen, Denmark. 6.Institute for Atmospheric and Climate Science, Swiss Federal Institute of Technology, Schafmattstrasse 30, CH-8093 Zurich, Switzerland. 7.Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany. 8.Laboratoire de Meteorologie Dynamique, Ecole Polytechnique, Centre National de la Recherche Scientifique, 91128 Palaiseau Cedex, France. (literal)

Titolo

• Determination of polar stratospheric cloud particle refractive indices by use of in situ optical measurements and T-matrix calculations (literal)

Abstract

• A new algorithm to infer structural parameters such as refractive index and asphericity of cloud particles has been developed by use of in situ observations taken by a laser backscattersonde and an optical particle counter during balloon stratospheric flights. All three main particles, liquid, ice, and a no-ice solid (NAT, nitric acid trihydrate) of polar stratospheric clouds, were observed during two winter flights performed from Kiruna, Sweden. The technique is based on use of the T-matrix code developed for aspherical particles to calculate the backscattering coefficient and particle depolarizing properties on the basis of size distribution and concentration measurements. The results of the calculations are compared with observations to estimated refractive indices and particle asphericity. The method has also been used in cases when the liquid and solid phases coexist with comparable influence on the optical behavior of the cloud to estimate refractive indices. The main results prove that the index of refraction for NAT particles is in the range of 1.37–1.45 at 532 nm. Such particles would be slightly prolate spheroids. The calculated refractive indices for liquid and ice particles are 1.51–1.55 and 1.31–1.33, respectively. The results for solid particles confirm previous measurements taken in Antarctica during 1992 and obtained by a comparison of lidar and optical particle counter data. (literal)

Prodotto di

• Studio dei processi atmosferici e monitoraggio dei cambiamenti climatici nella regione antartica (TA.P02.022.001) (Modulo)
• Studio e monitoraggio dei cambiamenti climatici nelle regioni remote con particolare riferimento a quelle polari (TA.P02.006.007) (Modulo)
• Institute of atmospheric sciences and climate (ISAC) (Istituto)

Autore CNR

• MARCELLINUS SNELS (Persona)
• MARIA LUISA MORICONI (Unità di personale interno)
• FRANCESCO CAIRO (Unità di personale interno)

Incoming links:

Prodotto

• Institute of atmospheric sciences and climate (ISAC) (Istituto)
• Studio dei processi atmosferici e monitoraggio dei cambiamenti climatici nella regione antartica (TA.P02.022.001) (Modulo)
• Studio e monitoraggio dei cambiamenti climatici nelle regioni remote con particolare riferimento a quelle polari (TA.P02.006.007) (Modulo)

Autore CNR di

• MARIA LUISA MORICONI (Unità di personale interno)
• MARCELLINUS SNELS (Persona)
• FRANCESCO CAIRO (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Applied optics (Rivista)