We present results obtained using the new version of the multi-filter rotating shadowband radiometer (MFRSR) data analysis algorithm (Alexandrov et al. 2005). This algorithm allows the partition of aerosol optical thickness (AOT) into fine and coarse aerosol modes and to retrieve the fine mode effective radius (reff). A bimodal gamma distribution is used as the aerosol particle size model. The ...

The Global Retrieval of ATSR Cloud Parameters and Evaluation (GRAPE) project has produced a global dataset of cloud and aerosol properties from the Along Track Scanning Radiometer-2 (ATSR-2) instrument, covering the time period 1995–2001. This paper presents the validation of aerosol optical depths (AODs) over the ocean from this product against AERONET sun-photometer measurements, as well as a...

The authors present results of measurements with a precision filter radiometer and compare their results to collocated measurements carried out with an AERONET (CIMEL) sun photometer. The purpose of the study is to show that the measurements of the precision filter radiometer, which is used by the GAW aerosol network, can be used to extend the data available from AERONET sun photometers. The au...

The authors present results of measurements with a precision filter radiometer and compare their results to collocated measurements carried out with an AERONET (CIMEL) sun photometer. The purpose of the study is to show that the measurements of the precision filter radiometer, which is used by the GAW aerosol network, can be used to extend the data available from AERONET sun photometers. The au...

Reviewer #2 General comments This article addresses a problem of dust particles detection in the atmosphere, which is of high interest of scientific community. A new method for quantitative estimation of dust presence based on particle depolarization ratio retrieved from AERONET inversion is suggested. Authors made significant efforts to evaluate the AERONET retrieved particles depolarization r...

We present a fixed-lag ensemble Kalman smoother for estimating emissions for a global aerosol transport model from remote sensing observations. We assimilate AERONET AOT and AE as well as MODIS Terra AOT over ocean to estimate the emissions for dust, sea salt and carbon aerosol and the precursor gas SO2. For January 2009, globally dust emission decreases by 26% (to 3,244 Tg/yr), sea salt emissi...

The authors present results of measurements with a precision filter radiometer and compare their results to collocated measurements carried out with an AERONET (CIMEL) sun photometer. The purpose of the study is to show that the measurements of the precision filter radiometer, which is used by the GAW aerosol network, can be used to extend the data available from AERONET sun photometers. The au...