Abstract
A series of 149 measurements of the HCHO mixing ratio were made between 0 and 10 km altitude and 70° N to 60° S latitude during TROPOZ II. The data show a vertical decrease of the HCHO mixing ratio with altitude at all latitudes and a broad latitudinal maximum in the HCHO mixing ratio between 30° N and 30° S at all altitudes. The measured mixing ratios of HCHO are considerably higher than those expected from CH4 oxidation alone, but agree broadly with the average latitude by altitude distribution of HCHO derived by a 2D model including emissions of C1–C7 hydrocarbons. A number of the regional scale deviations of the measured HCHO distribution from the average modelled one can be explained in terms of the local wind field.
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Arlander, D. W., Cronn, D. R., Farmer, J. C., Menzia, F. A., and Westberg, H. H., 1990, Gaseous oxygenated hydrocarbons in the remote marine troposphere,J. Geophys. Res. 95, 16391–16403.
Arlander, D. W., Schmidt, U., and Ehhalt, D. H., 1992, Distribution of C1–C2 aldehydes in the free troposphere, Ph.D. Dissertation, 127 pp., Universität Köln, Jül-Bericht 2650, Forschungszentrum Jülich, July 1992.
Arlander, D. W., Bruening, D., Schmidt, U., and Ehhalt, D. H., 1995, The distribution of acetaldehyde in the lower troposphere during TROPOZ II,J. Atmos. Chem.,22, 241–247 (this issue)
Atkinson, R., 1990, Gas-phase tropospheric chemistry of organic compounds: A review,Atmos. Environ. 24A, 1–41.
Beasley, R. K., Hoffman, C. E., Rueppel, M. L., and Worley, J. W., 1980, Sampling of formaldehyde in air with coated solid sorbent and determination by high performance liquid chromatography,Anal. Chem. 52, 1110–1114.
Cofer III, W. R. and Edahl, R. A. Jr., 1986, A new technique for collection, concentration and determination of gaseous tropospheric formaldehyde,Atmos. Environ. 20, 979–984.
Hough, A. M., 1991, Development of a two-dimensional tropospheric model: Model chemistry,J. Geophys. Res. 96, 7325–7362.
Lowe, D., Schmidt, U., and Ehhalt, D. H., 1980, A new technique for measuring tropospheric formaldehyde,Geophys. Res. Lett. 7, 825–828.
Marenco, A., Macaigne, M., and Prieur, S., 1989, Meridional and vertical CO and CH4 distributions in the background troposphere (70° N-60° S; 0–12 km altitude) from scientific aircraft measurements during the STRATOZ III experiment (June 1984),Atmos. Environ. 23, 185–200.
Prinn, R., Cunnold, D., Simmonds, P., Alyea, F., Boldi, R., Crawford, A., Fraser, P., Gutzler, D., Hartley, D., Rosen, R., and Rasmussen, R., 1992, Global average concentration and trend for hydroxyl radicals from ALE/GAGE trichloroethane (methyl chloroform) data 1978–1990,J. Geophys. Res. 97, 2445–2462.
Roeth, E. P., 1986, Description of a one-dimensional model for atmospheric chemistry, Jül-Bericht 2098, Forschungszentrum Jülich, November.
Roths, J., 1992, Entwicklung eines flugtauglichen laserspektroskopischen Spurengassensors und dessen Einsatz bei der TROPOZ II Flugmeßkampagne, Ph.D. Thesis, University of Mainz.
Vaghjiani, G. L. and Ravishankara, A. R., 1991, New measurement of the rate coefficient for the reaction of OH and methane,Nature 350, 406–409.
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Arlander, D.W., Brüning, D., Schmidt, U. et al. The tropospheric distribution of formaldehyde during TROPOZ II. J Atmos Chem 22, 251–269 (1995). https://doi.org/10.1007/BF00696637
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DOI: https://doi.org/10.1007/BF00696637