Influence of atmospheric parameters on vertical profiles and horizontal transport of aerosols generated in the surf zone

The vertical and horizontal transport of aerosols generated over the surf zone is discussed. Experimental data were collected during the second campaign of the Surf Zone Aerosol Experiment that took place in Duck NC (USA) in November 2007. The Empirical Orthogonal Function (EOF) method was used to analyze the vertical concentration gradients,...

Transmissometer versus sun photometer measurements of the aerosol optical properties

Atmospheric aerosol particles affect the Earth's radiative balance both in the cloud-free and the cloudy atmosphere. The direct effect of aerosols is related with scattering and absorption of solar radiation, and as a consequence, reduction of the amount of radiation reaching the surface. The best parameter that quantifies this effect is the...

Sea spray aerosol and wave energy dissipation in the surf zone

Results from a quantitative model for the prediction of the sea-salt mass flux produced in the surf zone are presented in this paper. The model relates the surf zone sea salt mass flux to the amount of wave energy dissipated in the surf zone. In order to apply this aerosol emission model, a wave numerical model is required to obtain estimates...

Aerosol optical thickness retrieval over land and water using SCIAMACHY/GOME data

An algorithm for the retrieval of the aerosol optical thickness over land and over water from SCIAMACHY (SCanning Imaging Absorption SpectroMeter for Atmospheric ChartographY) is presented. Because calibrated data are not yet available for the SCIAMACHY channels used by the algorithm, the concepts were tested with GOME (Global Ozone Monitoring...

Aerosol optical thickness retrieval over land and water using Global Ozone Monitoring Experiment (GOME) data

An algorithm for the retrieval of the aerosol optical thickness over land and over water from Global Ozone Monitoring Experiment (GOME) data is presented. The cloud fraction in the GOME pixels is determined using the Fast Retrieval Scheme for Clouds From the Oxygen A Band (FRESCO) algorithm. Surface contributions to the top of atmosphere...

Retrieval of Aerosol Properties from Satellite Data

Algorithms for the retrieval of aerosol properties over land and over sea have been developed by the TNO Physics and Electronics Laboratory (TNO-FEL) for several instruments, such as AVHRR (Veefkind et al., 1998a), GOME, ATSR-2 (Veelkind et al. 1998a, b; 1999) and OMI (Torres et al. 2002). OMI will be launched in 2004. An algorithm for SCIAMACHY...

Empirical relationships between aerosol mass concentrations and Angstrom parameter

Empirical relations between aerosol mass concentrations and Ångström parameters alpha were derived from simultaneous optical and chemical measurements on the Baltic in March 1998. The relations apply to mass concentrations of sea salt aerosol (SSA), black carbon (BC) and organic carbon (OC), expressed in terms of their ratio to the total...

Retrieval of aerosol optical depth from satellite measurements using single and dual view algorithms

To retrieve aerosol properties from the radiance measured at the top of the atmosphere in clear sky conditions, the contributions of the surface and the various atmospheric constituents need to be separated. This is easiest done over dark surfaces, i.e. with a negligible reflectance that can relatively easily be accounted for. This principle has...

A new algorithm to retrieve AOD with ATSR-2 data

A new algorithm to retrieve aerosol optical depth with Along Track Scanning Radiometer (ATSR) data was presented. The generalization of algorithms for application over some areas is reported. An automated cloud detection scheme was included in the algorithms in order to generalize them. Inclusion of other aerosol types was also carried out.

Aerosol composition and related optical properties in the marine boundary layer over the Baltic Sea.

The influence of sea-salt aerosols on the atmospheric extinction over the Baltic and the north seas.

The results of spectral aerosol optical thickness measurements at the Polish coast (Sopot, Hel) carried out in the period from July 1997 up to May 1999 are presented. The empirical orthogonal function (EOF) method applied to aerosol optical thickness spectra allowed to distinguish three aerosol advections, associated with wind direction sectors:...