Simultaneous global observations of glyoxal and formaldehyde from space
Folkard Wittrock,Andreas Richter,Hilke Oetjen,John P. Burrows,Maria Kanakidou,Stelios Myriokefalitakis,Rainer Volkamer,Steffen Beirle,Ulrich Platt,Thomas Wagner +9 more
TLDR
Wittrock et al. as mentioned in this paper presented the first global simultaneous observations of glyoxal (CHOCHO) and formaldehyde (HCHO) columns retrieved from measurements by the Scanning Imaging Absorption Spectrometer for Atmospheric Cartography (SCIAMACHY) satellite instrument.Abstract:
[1] The first global simultaneous observations of glyoxal (CHOCHO) and formaldehyde (HCHO) columns retrieved from measurements by the Scanning Imaging Absorption Spectrometer for Atmospheric Cartography (SCIAMACHY) satellite instrument are presented and compared to model calculations. The global pattern of the distribution of CHOCHO is similar to that of HCHO. High values are observed over areas with large biogenic isoprene emissions (Central Africa, parts of South America, and Indonesia). Also regions with biomass burning and anthropogenic pollution exhibit elevated levels of CHOCHO. The ratio of the columns of CHOCHO to HCHO is generally of the order of 0.05 in regions having biogenic emissions, which is in reasonable agreement with the current understanding of the oxidation of hydrocarbons emitted by the biosphere. However and in contrast to our model, high values of both HCHO and CHOCHO are also observed over areas of the tropical oceans. This is tentatively attributed to outflow from the continents and local oceanic biogenic sources of the precursors of HCHO and CHOCHO. Citation: Wittrock, F., A. Richter, H. Oetjen, J. P. Burrows, M. Kanakidou, S. Myriokefalitakis, R. Volkamer, S. Beirle, U. Platt, and T. Wagner (2006), Simultaneous global observations of glyoxal and formaldehyde from space, Geophys. Res. Lett., 33, L16804, doi:10.1029/2006GL026310.read more
Citations
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Atmospheric composition change – global and regional air quality
Paul S. Monks,Claire Granier,Claire Granier,Claire Granier,Sandro Fuzzi,Andreas Stohl,Martin L. Williams,Hajime Akimoto,Markus Amann,Alexander Baklanov,Urs Baltensperger,Isabelle Bey,Nicola J. Blake,Robert S. Blake,Kenneth S. Carslaw,Owen R. Cooper,Owen R. Cooper,F. J. Dentener,David Fowler,E. Fragkou,Gregory J. Frost,Gregory J. Frost,S. Generoso,Paul Ginoux,Volker Grewe,Alex Guenther,Hans-Christen Hansson,Stephan Henne,Jens Hjorth,Andreas Hofzumahaus,Heidi Huntrieser,Ivar S. A. Isaksen,Michael E. Jenkin,Jan Kaiser,Maria Kanakidou,Zbigniew Klimont,Markku Kulmala,Paolo Laj,Paolo Laj,Mark Lawrence,James D. Lee,Catherine Liousse,Michela Maione,Gordon McFiggans,A. Metzger,Aude Mieville,Nicolas Moussiopoulos,John J. Orlando,Colin D. O'Dowd,Paul I. Palmer,D. D. Parrish,Andreas Petzold,Ulrich Platt,Ulrich Pöschl,André S. H. Prévôt,Claire E. Reeves,Stefan Reimann,Yinon Rudich,Karine Sellegri,Rainer Steinbrecher,David Simpson,David Simpson,H.M. ten Brink,J. Theloke,G. R. van der Werf,Robert Vautard,Vigdis Vestreng,Ch. Vlachokostas,R. von Glasow +68 more
TL;DR: A review of the state of scientific understanding in relation to global and regional air quality is outlined in this article, in terms of emissions, processing and transport of trace gases and aerosols.
Journal ArticleDOI
Global budgets of atmospheric glyoxal and methylglyoxal, and implications for formation of secondary organic aerosols
Tzung-May Fu,Tzung-May Fu,Daniel J. Jacob,Folkard Wittrock,John P. Burrows,Mihalis Vrekoussis,Daven K. Henze +6 more
TL;DR: In this paper, a detailed simulation of glyoxal and methylglyoxal in the GEOS-Chem global 3-D chemical transport model including the best knowledge of source and sink processes was conducted.
Global Budgets of Atmospheric Glyoxal and Methylglyoxal, and Implications for Formation of Secondary Organic Aerosols
Tzung-May Fu,Daniel J. Jacob +1 more
Journal ArticleDOI
Remote sensing of particulate pollution from space: have we reached the promised land?
TL;DR: It is suggested that ground-based measurements, models, and satellite measurements should be viewed as a system, each component of which is necessary to better understand air quality.
Journal ArticleDOI
A missing sink for gas-phase glyoxal in Mexico City: Formation of secondary organic aerosol
Rainer Volkamer,Rainer Volkamer,Federico San Martini,Luisa T. Molina,D. Salcedo,Jose L. Jimenez,Mario J. Molina +6 more
TL;DR: In this paper, the authors compared direct measurements of gas-phase glyoxal in Mexico City with experimentally constrained model predictions and found that the observed glyoxion concentrations were significantly below those predicted; an additional glyoxification sink must be operative.
References
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SCIAMACHY: Mission Objectives and Measurement Modes
Heinrich Bovensmann,John P. Burrows,Michael Buchwitz,Johannes Frerick,Stefan Noel,Vladimir Rozanov,Kelly Chance,Albert P. H. Goede +7 more
TL;DR: SCIAMACHY (Scanning Imaging Absorption Spectrometer for Atmospheric Chartography) is a spectrometer designed to measure sunlight transmitted, reflected, and scattered by the earth's atmosphere or surface in the ultraviolet, visible, and near-infrared wavelength region (240-2380 nm) at moderate spectral resolution (0.2-1.5 nm, λ/Δλ ≈ 1000-10
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Tropospheric no2 from gome measurements
Andreas Richter,John P. Burrows +1 more
TL;DR: In this article, a case study of tropospheric NO, above Africa in fall 1997 is presented, showing the influence of both biomass burning and lightning, showing that substantial amounts of NO, am present in the free troposphere over the African continent and in the outflow regions over the Southern Atlantic and the Indian Ocean.
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Impact of Non-Methane Hydrocarbons on Tropospheric Chemistry and the Oxidizing Power of the Global Troposphere: 3-Dimensional Modelling Results
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