Search Results - "Stavrakou, T."

Impact of Coronavirus Outbreak on NO2 Pollution Assessed Using TROPOMI and OMI Observations by Bauwens, M., Compernolle, S., Stavrakou, T., Müller, J.‐F., Gent, J., Eskes, H., Levelt, P. F., A, R., Veefkind, J. P., Vlietinck, J., Yu, H., Zehner, C.

“…Spaceborne NO2 column observations from two high‐resolution instruments, Tropospheric Monitoring Instrument (TROPOMI) on board Sentinel‐5 Precursor and Ozone…”
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NOx Emissions Reduction and Rebound in China Due to the COVID‐19 Crisis by Ding, J., A, R. J., Eskes, H. J., Mijling, B., Stavrakou, T., Geffen, J. H. G. M., Veefkind, J. P.

“…During the COVID‐19 lockdown (24 January–20 March) in China low air pollution levels were reported in the media as a consequence of reduced economic and social…”
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Global data set of biogenic VOC emissions calculated by the MEGAN model over the last 30 years by Sindelarova, K, Granier, C, Bouarar, I, Guenther, A, Tilmes, S, Stavrakou, T, Müller, J.-F, Kuhn, U, Stefani, P, Knorr, W

“…The Model of Emissions of Gases and Aerosols from Nature (MEGANv2.1) together with the Modern-Era Retrospective Analysis for Research and Applications (MERRA)…”
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Diurnal, seasonal and long-term variations of global formaldehyde columns inferred from combined OMI and GOME-2 observations by De Smedt, I., Stavrakou, T., Hendrick, F., Danckaert, T., Vlemmix, T., Pinardi, G., Theys, N., Lerot, C., Gielen, C., Vigouroux, C., Hermans, C., Fayt, C., Veefkind, P., Müller, J.-F., Van Roozendael, M.

“…We present the new version (v14) of the BIRA-IASB algorithm for the retrieval of formaldehyde (H2CO) columns from spaceborne UV–visible sensors. Applied to OMI…”
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Four years of ground-based MAX-DOAS observations of HONO and NO2 in the Beijing area by Hendrick, F, Müller, J.-F, Clémer, K, Wang, P, De Mazière, M, Fayt, C, Gielen, C, Hermans, C, Ma, J Z, Pinardi, G, Stavrakou, T, Vlemmix, T, Van Roozendael, M

“…Ground-based Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) measurements of nitrous acid (HONO) and its precursor NO2 (nitrogen dioxide) as…”
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Satellite evidence for changes in the NO2 weekly cycle over large cities by Stavrakou, T., Müller, J.-F., Bauwens, M., Boersma, K. F., van Geffen, J.

“…Anthropogenic activities, by far the largest source of NOx into the atmosphere, induce a weekly cycle of NO 2 abundances in cities. Comprehensive analysis of…”
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Fast photolysis of carbonyl nitrates from isoprene by Müller, J.-F, Peeters, J, Stavrakou, T

“…Photolysis is shown to be a major sink for isoprene-derived carbonyl nitrates, which constitute an important component of the total organic nitrate pool over…”
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Shifts in Maritime Trade Routes as a Result of Red Sea Shipping Crisis Detected in TROPOMI NO2 Data by Pseftogkas, A., Stavrakou, T., Müller, J.‐F., Koukouli, M.‐E., Balis, D., Meleti, C.

“…Observations from space‐borne spectrometers have been lately used to quantify shipping emissions of nitrogen oxides (ΝΟΧ). Here we present a method that…”
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Satellite Evidence for Glyoxal Depletion in Elevated Fire Plumes by Lerot, C., Müller, J.‐F., Theys, N., Smedt, I., Stavrakou, T., Roozendael, M.

“…Space‐borne observations are used to characterize the fate of formaldehyde and glyoxal in wildfire plumes. Their distribution measured by the Tropospheric…”
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Isoprene emissions over Asia 1979–2012: impact of climate and land-use changes by Stavrakou, T, Müller, J.-F, Bauwens, M, De Smedt, I, Van Roozendael, M, Guenther, A, Wild, M, Xia, X

“…Due to the scarcity of observational constraints and the rapidly changing environment in East and Southeast Asia, isoprene emissions predicted by models are…”
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Spaceborne evidence for significant anthropogenic VOC trends in Asian cities over 2005–2019 by Bauwens, M, Verreyken, B, Stavrakou, T, Müller, J-F, Smedt, I De

“…Abstract Trends of formaldehyde (HCHO) linked to anthropogenic activity over large cities located in the Asian continent are calculated for the period…”
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Impact of Short‐Term Climate Variability on Volatile Organic Compounds Emissions Assessed Using OMI Satellite Formaldehyde Observations by Stavrakou, T., Müller, J.‐F., Bauwens, M., De Smedt, I., Van Roozendael, M., Guenther, A.

“…A major feedback between climate and atmospheric chemistry lies in the meteorological dependence of the emissions of biogenic volatile organic compounds…”
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Sulfur dioxide vertical column DOAS retrievals from the Ozone Monitoring Instrument: Global observations and comparison to ground‐based and satellite data by Theys, N., De Smedt, I., Gent, J., Danckaert, T., Wang, T., Hendrick, F., Stavrakou, T., Bauduin, S., Clarisse, L., Li, C., Krotkov, N., Yu, H., Brenot, H., Van Roozendael, M.

“…We present a new data set of sulfur dioxide (SO2) vertical columns from observations of the Ozone Monitoring Instrument (OMI)/AURA instrument between 2004 and…”
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Inversion of CO and NOx emissions using the adjoint of the IMAGES model by Müller, J.-F., Stavrakou, T.

“…We use ground-based observations of CO mixing ratios and vertical column abundances together with tropospheric NO2 columns from the GOME satellite instrument…”
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How consistent are top-down hydrocarbon emissions based on formaldehyde observations from GOME-2 and OMI? by Stavrakou, T, Müller, J.-F, Bauwens, M, De Smedt, I, Van Roozendael, M, De Mazière, M, Vigouroux, C, Hendrick, F, George, M, Clerbaux, C, Coheur, P.-F, Guenther, A

“…The vertical columns of formaldehyde (HCHO) retrieved from two satellite instruments, the Global Ozone Monitoring Instrument-2 (GOME-2) on Metop-A and the…”
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Twelve years of global observations of formaldehyde in the troposphere using GOME and SCIAMACHY sensors by De Smedt, I., Müller, J.-F., Stavrakou, T., van der A, R., Eskes, H., Van Roozendael, M.

“…This work presents global tropospheric formaldehyde columns retrieved from near-UV radiance measurements performed by the GOME instrument onboard ERS-2 since…”
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Acetone Atmospheric Distribution Retrieved From Space by Franco, B., Clarisse, L., Stavrakou, T., Müller, J.‐F., Pozzer, A., Hadji‐Lazaro, J., Hurtmans, D., Clerbaux, C., Coheur, P.‐F.

“…As one of the most abundant oxygenated volatile organic compounds in the atmosphere, acetone (CH3C[O]CH3) influences atmospheric oxidants levels and ozone…”
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Improved global modelling of HOx recycling in isoprene oxidation: evaluation against the GABRIEL and INTEX-A aircraft campaign measurements by Stavrakou, T, Peeters, J, Müller, J.-F

“…Stimulated by recent important developments regarding the oxidation chemistry of isoprene, this study evaluates and quantifies the impacts of different…”
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Top‐Down CO Emissions Based On IASI Observations and Hemispheric Constraints on OH Levels by Müller, J.‐F., Stavrakou, T., Bauwens, M., George, M., Hurtmans, D., Coheur, P.‐F., Clerbaux, C., Sweeney, C.

“…Assessments of carbon monoxide emissions through inverse modeling are dependent on the modeled abundance of the hydroxyl radical (OH) which controls both the…”
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Substantial Underestimation of Post-Harvest Burning Emissions in the North China Plain Revealed by Multi-Species Space Observations by Stavrakou, T., Müller, J.-F., Bauwens, M., De Smedt, I., Lerot, C., Van Roozendael, M., Coheur, P.-F., Clerbaux, C., Boersma, K. F., van der A, R., Song, Y.

“…The large-scale burning of crop residues in the North China Plain (NCP), one of the most densely populated world regions, was recently recognized to cause…”
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