Alexei Rozanov

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A new approach to derive tropospheric concentrations of some atmospheric trace gases from ground-based UV/vis measurements is described. The instrument, referred to as the MAX-DOAS, is based on the well-known UV/vis instruments, which use the sunlight scattered in the zenith sky as the light source and the method of Differential Optical Absorption(More)
The Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) onboard the European Envisat spacecraft performs continuous spectral observations of reflected, scattered and transmitted sunlight in various observation geometries. A unique feature of SCIAMACHY is the capability of probing the atmosphere in three different observation(More)
Formamide (NH2CHO) has been irradiated in condensed phase at 273 K by 11B-boron beams in the presence of powdered meteorites of the chondrite and stony-iron types. Relative to the controls (no radiation or no catalysis), a variegate panel of compounds was observed, including purine and pyrimidine nucleobases (uracil, cytosine, adenine, and guanine),(More)
Atmospheric Chemistry and Physics Discussions This discussion paper is/has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP if available. Abstract Stratospheric ozone profiles are retrieved for the period 2002–2009 from SCIAMACHY measurements of limb-scattered solar radiation in(More)
The spectrometer SCIAMACHY (SCanning Imaging Absorption spectroMeter for Atmospheric CHartogra-phY) on-board ENVISAT is measuring solar irradiances and Earthshine radiances from the UV to the NIR spectral region in nadir, limb and lunar/solar occultation geometry. Solar occultation measurement are performed during sunrise at northern latitudes (49N to 69N,(More)
The INDian Ocean EXperiment (INDOEX) was an international, multi-platform field campaign to measure long-range transport of air masses from South and SouthEast -(SE) Asia towards the Indian Ocean. During the dry monsoon season between January and March 1999, local measurements were carried out from ground based platforms and were compared with satellite(More)
– This paper considers various problems related to the capabilities of satellite observations for retrieving CO 2 surface fluxes and atmospheric concentrations over boreal forests. A novel regression model suitable for calculating various components of CO 2 fluxes at the surface level and employing satellite data as input has been developed. Results of this(More)
35S-Hemineurine penetrated across the blood-brain barrier more rapidly than 35S-thiamin within the first 30 min after intravenous administration. Within 24 hrs content of 35S-thiamin in the neurones exceeded by 34% its concentration in glia and by 200% -- in myelin fraction. 35S-Hemineurine was bound slightly with brain proteins as compared with thiamin and(More)
After subcutaneous administration in equimolar, close to therapeutic, doses accumulation of 1-14C-PANTOGAB exceeds accumulation of 1-14C-GABA in the brain areas only at early stages of observations: 7.5 and 15 min. In blood at all the time except for 4 h, the amount of 1-14C-PANTOGAB exceeds essentially the content of 1-14C-GABA. Maximum of 14C-PANTOGAB(More)
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