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Temporal and Spatial Variability of Glyoxal as Observed from Space : Volume 9, Issue 13 (14/07/2009)

By Vrekoussis, M.

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Book Id: WPLBN0003994918
Format Type: PDF Article :
File Size: Pages 20
Reproduction Date: 2015

Title: Temporal and Spatial Variability of Glyoxal as Observed from Space : Volume 9, Issue 13 (14/07/2009)  
Author: Vrekoussis, M.
Volume: Vol. 9, Issue 13
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2009
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Vrekoussis, M., Richter, A., Burrows, J. P., & Wittrock, F. (2009). Temporal and Spatial Variability of Glyoxal as Observed from Space : Volume 9, Issue 13 (14/07/2009). Retrieved from http://community.ebooklibrary.org/


Description
Description: Institute of Environmental Physics and Remote Sensing, IUP, University of Bremen, NW1, P.O. Box 33 04 40, 28334 Bremen, Germany. Glyoxal, CHO.CHO, is produced during the oxidation of volatile organic compounds, VOC, released by anthropogenic activities, biogenic processes and biomass burning. It has a short chemical lifetime of a few hours in the boundary layer and lower troposphere and therefore serves as an indicator and a marker of photochemical hot-spots and their response to changing atmospheric conditions around the globe. For this reason more than five years of CHO.CHO observations (2002–2007), retrieved from the radiances measured by the satellite instrument SCIAMACHY, were obtained and analyzed both temporally and spatially. The largest columns of CHO.CHO (>6.1014 molec cm−2) are found in the tropical and sub-tropical regions, associated with high biological activity and the plumes from vegetation fires. The majority of the identified hot spots are characterized by a well-defined seasonality: the highest values being observed during the warm and dry periods as a result of the enhanced biogenic, primarily isoprene, emissions and/or biomass burning from natural or man-made fires. The regions influenced by anthropogenic pollution also encounter enhanced amounts of glyoxal. The ratio CHO.CHO to HCHO, RGF over the biogenically influenced photochemical hot-spots is approximately 0.045. For the studied regions, the presence of pyrogenic and anthropogenic emissions increases and decreases this number respectively. Although the 2002–2007 period of observation is limited, over the northeastern Asia a significant annual increase in CHO.CHO in addition to a seasonal cycle is reported.

Summary
Temporal and spatial variability of glyoxal as observed from space

Excerpt
Abbot, D. S., Palmer, P. I., Martin, R. V., Chance, K. V., Jacob, D. J., and Guenther, A.: Seasonal and interannual variability of North American isoprene emissions as determined by formaldehyde column measurements from space, Geophys. Res. Lett., 30(17), 1886, doi:10.1029/2003gl017336, 2003.; Bloss, C., Wagner, V., Jenkin, M. E., Volkamer, R., Bloss, W. J., Lee, J. D., Heard, D. E., Wirtz, K., Martin-Reviejo, M., Rea, G., Wenger, J. C., and Pilling, M. J.: Development of a detailed chemical mechanism (MCMv3.1) for the atmospheric oxidation of aromatic hydrocarbons, Atmos. Chem. Phys., 5, 641–664, 2005.; Bogumil, K., Orphal, J., Homann, T., Voigt, S., Spietz, P., Fleischmann, O. C., Vogel, A., Hartmann, M., Kromminga, H., Bovensmann, H., Frerick, J., and Burrows, J. P.: Measurements of molecular absorption spectra with the SCIAMACHY pre-flight model: instrument characterization and reference data for atmospheric remote-sensing in the 230–2380 nm region, J. Photochem. Photobiol. a-Chemistry, 157, 167–184, doi:10.1016/S1010-6030(03)00062-5, 2003.; Bovensmann, H., Burrows, J. P., Buchwitz, M., Frerick, J., Noel, S., Rozanov, V. V., Chance, K. V., and Goede, A. P. H.: SCIAMACHY: Mission objectives and measurement modes, J. Atmos. Sci., 56, 127–150, 1999.; Bracher, A. U. and Tilzer, M. M.: Underwater light field and phytoplankton absorbance in different surface water masses of the Atlantic sector of the Southern Ocean, Polar Biology, 24, 687–696, 2001.; Grosjean, D., Grosjean, E., and Gertler, A. W.: On-road emissions of carbonyls from light-duty and heavy-duty vehicles, Environ. Sci. Technol., 35, 45–53, 2001.; Buchwitz, M., Khlystova, I., Bovensmann, H., and Burrows, J. P.: Three years of global carbon monoxide from SCIAMACHY: comparison with MOPITT and first results related to the detection of enhanced CO over cities, Atmos. Chem. Phys., 7, 2399–2411, 2007.; Burrows, J. P., Holzle, E., Goede, A. P. H., Visser, H., and Fricke, W.: Sciamachy - Scanning Imaging Absorption Spectrometer for Atmospheric Chartography, Acta Astronautica, 35, 445–451, 1995.; Cahoon, D. R., Stocks, B. J., Levine, J. S., Cofer, W. R., and Oneill, K. P.: Seasonal Distribution of African Savanna Fires, Nature, 359, 812–815, 1992.; Calvert, J. G., Atkinson, R., Kerr, J. A., Madronich, S., Moortgat, G. K., Wallington, T. J., and Yarwood, G.: The Mechanisms of Atmospheric Oxidation of the Alkenes, Oxford University Press, New York, 2000.; Calvert, J. G., Atkinson, R., Becker, K. H., Kamens, R. M., Seinfeld, J. H., Wallington, T. J., and Yarwood, G.: The Mechanisms of Atmospheric Oxidation of Aromatic Hydrocarbons, Oxford University Press, Oxford, 2002.; Cerqueira, M. A., Pio, C. A., Gomes, P. A., Matos, J. S., and Nunes, T.: Volatile organic compounds in rural atmospheres of central Portugal, Sci. Total Environ., 313, 49–60, doi:10.1016/S0048-9697(03)00250-X, 2003.; Chance, K., Palmer, P. I., Spurr, R. J. D., Martin, R. V., Kurosu, T. P., and Jacob, D. J.: Satellite observations of formaldehyde over North America from GOME, Geophys. Res. Let., 27, 3461–3464, 2000.; De Smedt, I., Müller, J.-F., Stavrakou, T., van der A, R., Eskes, H., and Van Roozendael, M.: Twelve years of global observations of formaldehyde in the troposphere using GOME and SCIAMACHY sensors, Atmos. Chem. Phys., 8, 4947–4963, 2008.; Fu, T. M., Jacob, D. J., Wittrock, F., Burrows, J. P., Vrekoussis, M., and Henze, D. K.: Global budgets of atmospheric glyoxal and methylglyoxal, and implications for formation of secondary organic aerosols, J. Geophys. Res.-Atmos., 113, D15303, doi:10.1029/2007jd009505, 2008.; Garcia, A. R., Volkamer, R., Molina, L. T., Molina, M. J., Samuelson, J., Mellqvist, J., Galle, B., Herndon, S. C., and Kolb, C. E.: Separation of emitted and photochemical formaldehyde in Mexico City using a statistical analysis and a new pair of gas-phase tracers, Atmos. Chem. Phys., 6, 4545–4557, 2006.; Gottwald, M., Bovensmann, H., Lichtenberg, G., Noel, S., von Bargen, A., Slijkhuis, S

 

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