Results 21 to 30 of about 3,051,692 (290)

Measurements of Light Extinction by Single Aerosol Particles [PDF]

, 2013
A Bessel beam optical trap is combined with continuous wave cavity ringdown spectroscopy to measure the extinction cross section of individual aerosol particles.
Reid, Jonathan P., Carruthers, Antonia E., Walker, Jim S., Orr-Ewing, Andrew J.   +3 more
core   +1 more source

Sensitivity of Reflectance to Water Vapor and Aerosol Optical Thickness

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2015
The atmospheric condition parameters used in the radiative transfer-based atmospheric correction (AC) are often uncertain. This uncertainty propagates to the estimated reflectance. The reflectance, is, however, not equally sensitive to all the parameters. A sensitivity analysis (SA) helps in prioritizing the parameters.
Nitin Bhatia, Valentyn A. Tolpekin, Ils Reusen, Sindy Sterckx, Jan Biesemans, Alfred Stein   +5 more
openaire   +2 more sources

Assimilation of POLDER aerosol optical thickness into the LMDz‐INCA model: Implications for the Arctic aerosol burden [PDF]

Journal of Geophysical Research: Atmospheres, 2007
The large spatial and temporal variability of atmospheric aerosol load makes it a challenge to quantify aerosol effect on climate. This study is one of the first attempts to apply data assimilation for the analysis of global aerosol distribution. Aerosol optical thickness (AOT) observed from the Polarization and Directionality of the Earth Reflectances
Generoso, S., Breon, Francois-Marie, Chevallier, Fréderic, Balkanski, Yves, Schulz, Michael, Bey, Isabelle   +5 more
openaire   +2 more sources

Evaluation of Multiangle Absorption Photometry for Measuring Aerosol Light Absorption [PDF]

, 2005
A new multiangle absorption photometer for the measurement of aerosol light absorption was recently introduced that builds on the simultaneous measurement of radiation transmitted through and scattered back from a particle-loaded fiber filter at multiple
Arnott, W.P., Sheridan, P.J., Petzold, A., Schloesser, H., Virkkula, A., Ogren, J.A.   +5 more
core   +1 more source

XBAER-derived aerosol optical thickness from OLCI/Sentinel-3 observation [PDF]

Atmospheric Chemistry and Physics, 2018
A cloud identification algorithm used for cloud masking, which is based on the spatial variability of reflectances at the top of the atmosphere in visible wavelengths, has been developed for the retrieval of aerosol properties by MODIS.
L. Mei, V. Rozanov, M. Vountas, J. P. Burrows, A. Richter   +4 more
doaj   +1 more source

The European aerosol budget in 2006 [PDF]

, 2011
This paper presents the aerosol budget over Europe in 2006 calculated with the global transport model TM5 coupled to the size-resolved aerosol module M7.
F. Dentener, KANHERT M, de Brugh, J. M. J. Aan, Marine and Atmospheric Research, M. Schaap, Schaap, M., Huijnen, V., Vignati, E., AAN DE BRUGH J.M., M. C. Krol, KROL M, Kahnert, M., Krol, M.C., Dep Natuurkunde, SOFIEV M, DENTENER Franciscus, HUIJNEN V., M. Kahnert, SCHAAP Martijn, Brugh, J.M.J.A. de, E. Vignati, VIGNATI Elisabetta, Dentener, F., Sofiev, M., J. M. J. Aan de Brugh, Krol, M. C., M. Sofiev, Aan de Brugh, J.M.J., Sub Atmospheric physics and chemistry, Dentener, F.J., Sofiev, M.A., Kahnert, Michael, Brugh, J.M.J., Aan de, V. Huijnen   +33 more
core   +3 more sources

Observations and projections of visibility and aerosol optical thickness (1956–2100) in the Netherlands: impacts of time-varying aerosol composition and hygroscopicity

Environmental Research Letters, 2015
Time series of visibility and aerosol optical thickness for the Netherlands have been constructed for 1956–2100 based on observations and aerosol mass scenarios. Aerosol optical thickness from 1956 to 2013 has been reconstructed by converting time series
R Boers, M van Weele, E van Meijgaard, M Savenije, A P Siebesma, F Bosveld, P Stammes   +6 more
doaj   +1 more source

Effect of Cloud Fraction on Near-Cloud Aerosol Behavior in the MODIS Atmospheric Correction Ocean Color Product

Remote Sensing, 2015
Characterizing the way satellite-based aerosol statistics change near clouds is important for better understanding both aerosol-cloud interactions and aerosol direct radiative forcing. This study focuses on the question of whether the observed near-cloud
Tamás Várnai, Alexander Marshak
doaj   +1 more source

A simple parameterization of columnar aerosol optical thickness

Proceedings of the Estonian Academy of Sciences. Biology. Ecology, 2007
A simple engineering method for calculating the aerosol optical thickness at 500 nm (AOT500) is proposed for Estonian summer conditions. The method is expressed by a single formula and represents a simplified version of a more complicated model developed at Moscow University, which assumes fulfilment of the Ångström formula.
Martin Kannel, Hanno Ohvril, Hilda Teral, Viivi Russak, Ain Kallis   +4 more
openaire   +1 more source

Evaluation of black carbon estimations in global aerosol models [PDF]

, 2009
We evaluate black carbon (BC) model predictions from the AeroCom model intercomparison project by considering the diversity among year 2000 model simulations and comparing model predictions with available measurements.
Schulz, M., Bauer, S., Krol, M.C., McNaughton, C., Spackman, J.R., Balkanski, Y., Koch, D.   +6 more
core   +1 more source