Aerosol climatology using a tunable spectral variability cloud screening of AERONET data (Articolo in rivista)

Type

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

Label

• Aerosol climatology using a tunable spectral variability cloud screening of AERONET data (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Alternative label

• Kaufman, Y. J., G. P. Gobbi, and I. Koren (2006)
  Aerosol climatology using a tunable spectral variability cloud screening of AERONET data
  in Geophysical research letters
  (literal)

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

• Kaufman, Y. J., G. P. Gobbi, and I. Koren (literal)

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

• 33,00 (literal)

Rivista

• Geophysical research letters (Rivista)

Note

• ISI Web of Science (WOS) (literal)

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

• 1NASA/Goddard Space Flight Center, Greenbelt, Maryland, USA. 2Istituto Scienze dell’Atmosfera e del Clima, CNR, Rome, Italy. 3Department of Environmental Sciences Weizmann Institute, Rehovot, Israel. (literal)

Titolo

• Aerosol climatology using a tunable spectral variability cloud screening of AERONET data (literal)

Abstract

• Aerosols, humidity and clouds are often correlated. Therefore, rigorous cloud screening can systematically bias toward less cloudy and drier conditions, underestimating the average aerosol optical thickness (AOT). Here, using AERONET data we show that systematic rejection of variable atmospheric optical conditions can generate such bias in the average AOT. Therefore we recommend two approaches to deal with cloud contamination: (1) to introduce more powerful spectral variability cloud screening and (2) to retain most of the data despite cloud contamination, estimate average cloud contamination and to correct for it. Both methods are applied to aerosol with A ° ngstro¨m exponent > 0.3 and compared with the AERONET cloud screened level 1.5 data. The new methods do not apply for pure dust. Analysis for 10 AERONET stations with 4 years of data, shows almost no change for Rome (Italy), but up to a change in AOT of 0.12 or +30% in Beijing (PRC). (literal)

Prodotto di

• Institute of atmospheric sciences and climate (ISAC) (Istituto)
• Studio del ruolo degli aerosol nel bilancio radiativo dell'atmosfera mediante misure radiometriche, lidar e in situ (TA.P02.010.004) (Modulo)

Autore CNR

• GIAN PAOLO GOBBI (Unità di personale interno)

Incoming links:

Prodotto

• Institute of atmospheric sciences and climate (ISAC) (Istituto)
• Studio del ruolo degli aerosol nel bilancio radiativo dell'atmosfera mediante misure radiometriche, lidar e in situ (TA.P02.010.004) (Modulo)

Autore CNR di

• GIAN PAOLO GOBBI (Unità di personale interno)

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

• Geophysical research letters (Rivista)