This paper presents the results of measurements of aerosol optical properties which were made between 2006 and 2008 within the framework of various international projects in different locations such as Spitsbergen, northern Norway and Crete. The investigations were made under different baric topography conditions and in various seasons of the year which facilitated the investigations of spatial...

LEXFOAM is an explosive foam developed from two non-explosive components to replace C-4 or TNT in humanitarian demining. This paper discusses a recent break through in packaging, the properties of newly developed LEXFOAM and improvement in delivery based on deficiencies noted in field testing. The Hand-held delivery system consists of two disposable aerosol cans. A large aerosol can contains 50...

A sunphotometer from AERONET network and a multiwavelength LIDAR system were employed to obtain the diurnal aerosol optical thickness from UV up to the near IR spectral region.Tropospheric aerosol optical properties were measured at the same time by two collocated systems at CEILAP in the Buenos Aires suburbs. Aerosol profiling capabilities from the LIDAR were reinforced by the use of the sunph...

One of the principal objectives of the NASA Glory mission is to determine the global distribution of detailed aerosol and cloud properties with unprecedented accuracy, thereby facilitating the quantification of the aerosol direct and indirect radiative forcings. This objective will be met by flying the Aerosol Polarimetry Sensor which will collect accurate multi-angle photopolarimetric measurem...

We used a 1-D cloud parcel model to assess the impact of biomassburning aerosol on cloud properties in the Amazon Basin and to identify the physical and chemical properties of the aerosol that influence droplet growth. Cloud condensation nuclei (CCN) measurements were performed between 0.15 and 1.5% supersaturation at ground-based sites in the states of Amazonas and Rondônia, Brazil, during sev...

Classes of atmospheric aerosols and their main sources, distributions of tropospheric aerosol by size and mass, their physico-chemical composition and principal optical properties in various spectral bands are described. Stratospheric aerosols in “quiet” and “disturbed” periods after the major volcanic eruptions, their interactions with clouds and of underlying surface radiative properties affe...

[1] We estimate aerosol absorption over the clear-sky oceans using aerosol geophysical products from POLDER-1 space measurements and absorption properties from ground-based AERONET measurements. Our best estimate is 2.5 Wm 2 averaged over the 8-month lifetime of POLDER-1. Low and high absorption estimates are 2.2 and 3.1 Wm 2 based on the variability in aerosol singlescattering albedo observed ...

Aerosol properties are retrieved from ATSR-2 data (ERS2 satellite) by utilizing the dual view for application over land and the single view for application over water. These two algorithms have been merged into a fast and efficient algorithm that allows for near real-time processing and which is suitable for operational use. It includes corrections for surface and atmospheric effects including ...

Hong Kong's surface visibility has decreased in recent years due to air pollution from rapid social and economic development in the region. In addition to deteriorating health standards, reduced visibility disrupts routine civil and public operations, most notably transportation and aviation. Regional estimates of visibility solved operationally using available ground and satellite-based estima...

Secondary organic aerosol (SOA) formation from mixed anthropogenic and biogenic precursors has been studied exposing reaction mixtures to natural sunlight in the SAPHIR chamber in Jülich, Germany. In this study aromatic compounds served as examples of anthropogenic volatile organic compound (VOC) and a mixture of α-pinene and limonene as an example for biogenic VOC. Several experiments with exc...