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Model of optical response of marine aerosols to Forbush decreases
optical response marine aerosols Forbush decreases
2010/8/12
In order to elucidate the effect of galactic cosmic rays on cloud formation, we investigate the optical response of marine aerosols to Forbush decreases – abrupt decreases in galactic cosmic rays – by...
Physical and optical properties of atmospheric aerosols by in-situ and radiometric measurements
Physical and optical properties atmospheric aerosols in-situ and radiometric measurements
2010/3/5
Physical and optical properties of atmospheric aerosols collected by using a high resolution (1.5 nm) spectroradiometer (spectral range 400–800 nm), a 13-stage Dekati Low Pressure Impactor (size range...
Saharan dust infrared optical depth and altitude retrieved from AIRS: a focus over North Atlantic–comparison to MODIS and CALIPSO
Saharan dust AIRS North Atlantic MODIS CALIPSO
2010/2/21
Monthly mean infrared (10 μm) dust layer aerosol optical depth (AOD) and mean altitude are simultaneously retrieved over the tropics (30° S–30° N) from almost seven years of Atmospheric Infrared Sound...
Modelling the optical and radiative properties of freshly emitted light absorbing carbon within an atmospheric chemical transport model
freshly emitted light carbon atmospheric chemical transport model
2010/2/21
Light absorbing carbon (LAC) aerosols have a complex, fractal-like aggregate structure. Their optical and radiative properties are notoriously difficult to model, and approximate methods may introduce...
Cluster analysis of the impact of air back-trajectories on aerosol optical properties at Hornsund, Spitsbergen
air back-trajectories aerosol optical properties Hornsund Spitsbergen
2010/2/1
In this paper, spectra of aerosol optical thickness from the AERONET (AErosol RObotic NETwork) station at Hornsund in the southern part of Spitsbergen were employed to study the impact of air mass his...
Physical and optical properties of aerosols over an urban location in Spain: seasonal and diurnal variability
Physical and optical properties aerosols Spain
2010/1/18
Measurements of aerosol optical properties and aerosol number size distribution obtained during the period from December 2005 to November 2007 at Granada, an urban site in south-eastern Spain, are ana...
Aerosol vertical distribution and optical properties over M'Bour (16.96° W; 14.39° N), Senegal from 2006 to 2008
Aerosol vertical distribution optical properties M'Bour
2009/12/31
We present ground-based measurements of aerosol mass, optical properties and vertical extinction profiles acquired in M'Bour, Senegal (16.96° W; 14.39° N) from January 2006 to September 2008. This pla...
An intensive study of aerosol optical properties in Beijing urban area
aerosol optical properties Beijing urban area
2009/12/3
In order to quantify the aerosol impact on climate, a range of aerosol parameters are required. In this paper, two-year of ground-based observations of aerosol optical properties from an urban site in...
Chemical apportionment of southern African aerosol mass and optical depth
Chemical apportionment southern African aerosol mass optical depth
2009/11/9
This study characterizes the aerosol over extratropical and tropical southern Africa during the biomass burning season by presenting an aerosol mass apportionment and aerosol optical properties. Carbo...
Positive sampling artifact of carbonaceous aerosols and its influence on the thermal-optical split of OC/EC
carbonaceous aerosols thermal-optical split OC/EC
2009/10/9
Accurate measurement of carbonaceous aerosols is challenging, due to the sampling artifact and the problems of the split of OC/EC. Two approaches have been used to account for the positive artifact: b...
Comparison of aerosol optical depths from the Ozone Monitoring Instrument (OMI) on Aura with results from airborne sunphotometry, other space and ground measurements during MILAGRO/INTEX-B
aerosol optical depths Ozone Monitoring Instrument (OMI) airborne sunphotometry MILAGRO/INTEX-B
2009/9/23
Airborne sunphotometer measurements are used to evaluate retrievals of extinction aerosol optical depth (AOD) from spatially coincident and temporally near-coincident measurements by the Ozone Monitor...
Aerosol optical properties relevant to regional remote sensing of CCN activity and links to their organic mass fraction: airborne observations over Central Mexico and the US West Coast during MILAGRO/INTEX-B
Aerosol optical properties regional remote sensing CCN activity organic mass fraction
2009/9/23
Remote sensing of cloud condensation nuclei (CCN) would help evaluate the indirect effects of tropospheric aerosols on clouds and climate. To assess its feasibility, we examined relationships of submi...
Microphysical and optical properties of Arctic mixed-phase clouds. The 9 April 2007 case study.
Microphysical optical properties Arctic mixed-phase clouds
2009/9/14
Airborne measurements in Arctic boundary-layer stratocumulus were carried out near Spitsbergen on 9 April 2007 during the Arctic Study of Tropospheric Aerosol, Clouds and Radiation (ASTAR) campaign. A...
Technical Note: Determination of aerosol optical properties by a calibrated sky imager
Technical Note aerosol optical properties calibrated sky imager
2009/9/11
The calibrated ground-based sky imager developed in the Marine Physical Laboratory, the Whole Sky Imager (WSI), has been tested with data from the Atmospheric Radiation Measurement Program (ARM) at th...
Factors controlling contrail cirrus optical depth
Factors controlling contrail cirrus optical depth
2009/9/2
Aircraft contrails develop into contrail cirrus by depositional growth and sedimentation of ice particles and horizontal spreading due to wind shear. Factors controlling this development include tempe...