Measured and simulated integral content of NO2 in the atmospheric boundary layer in Moscow region in summer

Moscow megapolis is among the world's 20 largest megacities. Intensive air emissions of pollutants affect not only the state of the atmosphere above the megapolis, but also far beyond its limits. To obtain diagnostic and predictive assessments of this impact intensive measurements of air pollutants as well as chemical transport simulations are developed. Agreement of parameters used in chemical transport models (CTMs) with experimental results continues to be an important task. We present preliminary results of a comparison of the measured by DOAS technique and simulated by COSMO-Ru7-Art NO2 integral contents (IC) in the atmospheric boundary layer (ABL) at Zvenigorod Scientific Station (ZSS) located in 38 km west from Moscow. The comparison covers summer seasons of 2015 and 2016. The measured NO2 IC in the ABL observed at ZSS does not exceed 0.5×1016 molec×cm-2 in background conditions of the atmosphere when non-east wind direction dominated. It grows up to 4×1016 molec×cm-2 when polluted air masses come from Moscow megacity. Simulated NO2 IC has similar behavior. In general, a good agreement between measured and simulated datasets is observed. Usage of improved algorithm for NO2 IC measurements allows to compare measured and simulated diurnal variations of NO2 IC in the ABL. Increasing of the sample of analyzed data allows to reveal and analyze measured and simulated weekly cycle of NO2 IC in the ABL. Observed disagreements between measured and simulated characteristics of NO2 IC variations can be a source for improving of NO2 emission inventory.

[1]  A. Gruzdev,et al.  Variability of stratospheric and tropospheric nitrogen dioxide observed by the visible spectrophotometer at Zvenigorod, Russia , 2011 .

[2]  O. V. Postylyakov,et al.  Linearized vector radiative transfer model MCC++ for a spherical atmosphere , 2004 .

[3]  Application of Atmospheric Chemical Transport Models to Validation of Pollutant Emissions in Moscow , 2020 .

[4]  N. Elansky,et al.  Observations of the ozone and nitrogen dioxide profiles in the TROICA-4 experiment , 2006 .

[5]  Y. Kanaya,et al.  First measurements of formaldehyde integral content at Zvenigorod Scientific Station , 2013 .

[6]  G. Rivin,et al.  Forecasting the transport and transformation of atmospheric pollutants with the COSMO-ART model , 2017, Russian Meteorology and Hydrology.

[7]  O. Postylyakov.  Spherical Radiative Transfer Model with Computation of Layer Air Mass Factors and Some of Its Applications , 2004 .

[8]  V. A. Ivanov,et al.  Gas composition of the surface air in Moscow during the extreme summer of 2010 , 2011 .

[9]  Maksim S. Andreev,et al.  Estimation of cloud base height using ground-based stereo photography: method and first results , 2014, Remote Sensing.

[10]  A. Borovski,et al.  Study of different operational modes of the IAP 2-port-DOAS instrument for atmospheric trace gases investigation during CINDI-2 campaign basing on residual noise analysis , 2017, Atmospheric and Ocean Optics.

[11]  R. Draxler.  HYSPLIT (HYbrid Single-Particle Lagrangian Integrated Trajectory) Model access via NOAA ARL READY Website , 2010 .

[12]  A. N. Borovski,et al.  Measurements of formaldehyde total content in troposphere using DOAS technique in Moscow Region , 2015, Atmospheric and Ocean Optics.

[13]  O. V. Postylyakov,et al.  Comparison of measured and simulated by SILAM NO2 integral content in atmospheric boundary layer in Moscow region , 2019, Remote Sensing.

[14]  I. Trebs,et al.  Simultaneous HONO measurements in and above a forest canopy : influence of turbulent exchange on mixing ratio differences , 2010 .

[15]  Jihyo Chong,et al.  Long-term MAX-DOAS network observations of NO 2 in Russia and Asia (MADRAS) during the period 2007–2012: instrumentation, elucidation of climatology, and comparisons with OMI satellite observations and global model simulations , 2014 .

[16]  N. Elansky,et al.  Comparison of measured and simulated NO2 integral content in the lower troposphere in Moscow region , 2020, IOP Conference Series: Earth and Environmental Science.

[17]  O. V. Postylyakov,et al.  Measurements of formaldehyde total content using DOAS technique: a new retrieval method for overcast , 2014, Asia-Pacific Environmental Remote Sensing.

[18]  Victor Ivanov,et al.  First comparison of formaldehyde integral contents in ABL retrieved during clear-sky and overcast conditions by ZDOAS technique , 2017, Remote Sensing.

[19]  O. V Postylyakov.  Radiative transfer model MCC++ with evaluation of weighting functions in spherical atmosphere for use in retrieval algorithms , 2004 .

[20]  O. V. Postylyakov,et al.  Measurement of formaldehyde total content in troposphere using DOAS technique: improvements in version 1.3a of IAP retrieval algorithm , 2016, SPIE Asia-Pacific Remote Sensing.

[21]  Alexander Borovski,et al.  First experiment on retrieval of tropospheric NO2 over polluted areas with 2.4-km spatial resolution basing on satellite spectral measurements , 2017, Atmospheric and Ocean Optics.

[22]  V. Ivanov,et al.  On the possibility of estimating the volume of NO2 emissions in cities using zenith spectral observations of diffuse solar radiation near 450 nm , 2012 .

[23]  Y. Kanaya,et al.  First measurements of formaldehyde integral content in the atmosphere using MAX-DOAS in the Moscow region , 2014 .

[24]  N. Elansky,et al.  The Ozone and Aerosol Fine Structure experiment: Observing the fine structure of ozone and aerosol distribution in the atmosphere from the Salyut 7 Orbiter: 3. Experimental results , 1991 .

[25]  A. N. Borovski,et al.  Formaldehyde integral content in troposphere of Moscow region: preliminary results of 6 years of measurements using DOAS technique , 2016, Atmospheric and Ocean Optics.

[26]  Observations of Integral Formaldehyde Content in the Lower Troposphere in Urban Agglomerations of Moscow and Tomsk Using the Method of Differential Optical Absorption Spectroscopy , 2019, Atmospheric and Oceanic Optics.

[27]  J. D. de Gouw,et al.  Vertically resolved measurements of nighttime radical reservoirs in Los Angeles and their contribution to the urban radical budget. , 2012, Environmental science & technology.

[28]  Alexander Borovski,et al.  Study of different operational modes of the IAP 2-port-DOAS instrument for investigation of atmospheric trace gases during CINDI-2 campaign , 2017, Remote Sensing.