In this paper we present a new method for retrieving tropospheric NO2 Vertical Column Density (VCD) from zenith-sky Differential Optical Absorption Spectroscopy (DOAS) measurements using mobile observations. This method was used during three days in the summer of 2011 in Romania, being to our knowledge the first mobile DOAS measurements peformed in this country. The measurements were carried ou...

The global source of lightning-produced NOx (LNOx) is estimated by assimilating observations of NO2, O3, HNO3, and CO measured by multiple satellite measurements into a chemical transport model. Included are observations from the Ozone Monitoring Instrument (OMI), Microwave Limb Sounder (MLS), Tropospheric Emission Spectrometer (TES), and Measurements of Pollution in the Troposphere (MOPITT) in...

In this work we have developed a novel algorithm for the determination of total ozone column (TOC) from spectral top-of-atmosphere solar backscattered light measurements in range 400-1020nm performed by ESA Ocean and Land Colour Instrument on board Sentinel -3A, B. The can be applied scenes over bright underlying surfaces including clouds, snow ice (e.g., Antarctica), where absorption feature C...

Quantitative assessment of the UV effects on aquatic ecosystems requires an estimate in-water hyperspectral radiation field. Solar in ocean waters is estimated a global scale by combining extraterrestrial solar irradiance from Total and Spectral Irradiance Sensor (TSIS-1), satellite estimates cloud/surface reflectivity, ozone Ozone Monitoring Instrument (OMI) chlorophyll concentration Moderate ...

Abstract. In this work, we apply a principal component analysis (PCA)-based approach combined with lookup tables (LUTs) of corrections to accelerate the Vector Linearized Discrete Ordinate Radiative Transfer (VLIDORT) model used in retrieval ozone profiles from backscattered ultraviolet (UV) measurements by Ozone Monitoring Instrument (OMI). The spectral binning scheme, which determines accurac...

Abstract. We investigate the temporal variations of ground-level ozone and balloon-based profiles at Pohang (36.02? N, 129.23? E) in Korean Peninsula. Satellite measurements chemical reanalysis products are also intercompared to address their capability providing consistent information on vertical variability atmospheric ozone. Sub-seasonal summertime lower-tropospheric exhibit a bimodal patter...

Abstract. In this study we evaluate simulated surface SO2 and sulfate (SO42-) concentrations from the United Kingdom Earth System Model (UKESM1) against observations ground-based measurement networks in USA Europe for period 1987–2014. We find that UKESM1 captures historical trend decreasing of atmospheric SO42- both over However, polluted regions eastern Europe, over-predicts by a factor 3 whi...

Abstract. We present a new and improved version (V4.0) of the NASA standard nitrogen dioxide (NO2) product from Ozone Monitoring Instrument (OMI) on Aura satellite. This incorporates most salient improvements for OMI NO2 products suggested by expert users enhances data quality in several ways through to air mass factors (AMFs) used retrieval algorithm. The algorithm is based geometry-dependent ...

The global flux of sulfur dioxide (SO2) emitted by passive volcanic degassing is a key parameter that constrains the fluxes of other volcanic gases (including carbon dioxide, CO2) and toxic trace metals (e.g., mercury). It is also a required input for atmospheric chemistry and climate models, since it impacts the tropospheric burden of sulfate aerosol, a major climate-forcing species. Despite i...

To be submitted to IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 2 Abstract-Geostationary data from the Spinning Enhanced Visible and Infrared Imager (SEVIRI) in conjunction with A-Train data are used to develop an algorithm for detecting absorbing aerosols above liquid clouds (AAC). The detection relies on spectral signatures, textural characteristics, and time-dependent spectral variatio...