In:
Atmospheric Measurement Techniques, Copernicus GmbH, Vol. 11, No. 4 ( 2018-04-12), p. 2101-2118
Abstract:
Abstract. In this paper we assessed the influence of biomass burning
during forest fires throughout summer (1 June–31 August) 2010 on aerosol
abundance, dynamics, and its properties over Ukraine. We also considered
influences and effects over neighboring countries: European
Russia, Estonia, Belarus, Poland, Moldova, and Romania. We used MODIS satellite instrument data to study fire distribution. We also
used ground-based remote measurements from the international sun photometer
network AERONET plus MODIS and CALIOP satellite instrument data to
determine the aerosol content and optical properties in the atmosphere over
Eastern Europe. We applied the HYSPLIT model to investigate atmospheric dynamics
and model pathways of particle transport. As with previous studies, we found that the highest aerosol content was
observed over Moscow in the first half of August 2010 due to the proximity of
the most active fires. Large temporal variability of the aerosol content with
pronounced pollution peaks during 7–17 August was observed at the Ukrainian
(Kyiv and Sevastopol), Belarusian (Minsk), Estonian (Toravere), and Romanian
(Bucharest) AERONET sites. We analyzed aerosol spatiotemporal distribution over Ukraine using MODIS AOD
550 nm and further compared with the Kyiv AERONET site sun photometer
measurements; we also compared CALIOP AOD 532 nm with MODIS AOD data. We
analyzed vertical distribution of aerosol extinction at 532 nm, retrieved
from CALIOP measurements, for the territory of Ukraine at locations where
high AOD values were observed during intense fires. We estimated the
influence of fires on the spectral single scattering albedo, size distribution, and complex
refractive indices using Kyiv AERONET measurements performed during summer
2010. In this study we showed that the maximum AOD in the atmosphere over Ukraine
recorded in summer 2010 was caused by particle transport from the forest
fires in Russia. Those fires caused the highest AOD 500 nm over the Kyiv
site, which in August 2010 exceeded multiannual monthly mean for the entire
observational period (2008–2016, excluding 2010) by a factor of 2.2. Also,
the influence of fires resulted in a change of the particle microphysics in
the polluted regions.
Type of Medium:
Online Resource
ISSN:
1867-8548
DOI:
10.5194/amt-11-2101-2018
DOI:
10.5194/amt-11-2101-2018-supplement
Language:
English
Publisher:
Copernicus GmbH
Publication Date:
2018
detail.hit.zdb_id:
2505596-3
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