Search

Your search keyword '"Wieprecht, W."' showing total 191 results
Start Over Author "Wieprecht, W."
191 results on '"Wieprecht, W."'

3. Individual Results from GCE Principal Investigators

Author

Arends, B. G., Kos, G. P. A., Möls, H. J., Berner, A., Solly, I., Kruisz, C., Bizjak, M., Berner, Ax., Grgic, I., Divjak, B., Hudnik, V., Kozak-Legiša, Š., Poje, M., Choularton, T., Gallagher, M. W., Bower, K. N., Colvile, R. N., Fuzzi, S., Facchini, M. C., Orsi, G., Laj, P., Gieray, R., Engelhardt, T., Wieser, P. A., Hallberg, A., Noone, K. J., Orgen, J. A., Hansson, H-C, Svenningsson, I. B., Swietlicki, E., Widensohler, A., Martinsson, B. G., Frank, G., Jaeschke, W., Georgii, H. W., Schell, D., Preiss, M., Maser, R., Wobrock, W., Levsen, K., Lüttke, J., Cederfelt, S. I., Hansson, H. C., Möller, D., Acker, K., Wieprecht, W., Auel, R., Winkler, P., Pahl, S., Borrell, Peter, editor, Borrell, Patricia M., editor, Cvitaš, Tomislav, editor, Kelly, Kerry, editor, Seiler, Wolfgang, editor, Fuzzi, Sandro, editor, and Wagenbach, Dietmar, editor

Published
1997
Full Text
View/download PDF

4. The Kleiner Feldberg Cloud Experiment 1990. An Overview

Author

Wobrock, W., Schell, D., Maser, R., Jaeschke, W., Georgii, H.-W., Wieprecht, W., Arends, B. G., Mols, J. J., Kos, G. P. A., Fuzzi, S., Facchini, M. C., Orsi, G., Berner, A., Solly, I., Kruisz, C., Svenningsson, I. B., Wiedensohler, A., Hansson, H.-C., Ogren, J. A., Noone, K. J., Hallberg, A., Pahl, S., Schneider, T., Winkler, P., Winiwarter, W., Colvile, R. N., Choularton, T. W., Flossmann, A. I., Borrmann, S., and Fuzzi, Sandro, editor

Published
1995
Full Text
View/download PDF

10. FEBUKO and MODMEP: Field measurements and modelling of aerosol and cloud multiphase processes

Author

Herrmann, H., Wolke, R., Müller, K., Brüggemann, E., Gnauk, T., Barzaghi, P., Mertes, S., Lehmann, K., Massling, A., Birmili, W., Wiedensohler, A., Wieprecht, W., Acker, K., Jaeschke, W., Kramberger, H., Svrcina, B., Bächmann, K., Collett, J.L., Jr., Galgon, D., Schwirn, K., Nowak, A., van Pinxteren, D., Plewka, A., Chemnitzer, R., Rüd, C., Hofmann, D., Tilgner, A., Diehl, K., Heinold, B., Hinneburg, D., Knoth, O., Sehili, A.M., Simmel, M., Wurzler, S., Majdik, Z., Mauersberger, G., and Müller, F.

Published
2005
Full Text
View/download PDF

16. The Kleiner Feldberg Cloud Experiment 1990. An overview

Author

Wobrock, W., Schell, D., Maser, R., Jaeschke, W., Georgii, H. -W., Wieprecht, W., Arends, B. G., Mols, J. J., Kos, G. P. A., Fuzzi, S., Facchini, M. C., Orsi, G., Berner, A., Solly, I., Kruisz, C., Svenningsson, I. B., Wiedensohler, A., Hansson, H. -C., Ogren, J. A., Noone, K. J., Hallberg, A., Pahl, S., Schneider, T., Winkler, P., Winiwarter, W., Colvile, R. N., Choularton, T. W., Flossmann, A. I., and Borrmann, S.

Published
1994
Full Text
View/download PDF

21. The Kleiner Feldberg Cloud Experiment 1990. An Overview

Author

Wobrock, W., primary, Schell, D., additional, Maser, R., additional, Jaeschke, W., additional, Georgii, H.-W., additional, Wieprecht, W., additional, Arends, B. G., additional, Mols, J. J., additional, Kos, G. P. A., additional, Fuzzi, S., additional, Facchini, M. C., additional, Orsi, G., additional, Berner, A., additional, Solly, I., additional, Kruisz, C., additional, Svenningsson, I. B., additional, Wiedensohler, A., additional, Hansson, H.-C., additional, Ogren, J. A., additional, Noone, K. J., additional, Hallberg, A., additional, Pahl, S., additional, Schneider, T., additional, Winkler, P., additional, Winiwarter, W., additional, Colvile, R. N., additional, Choularton, T. W., additional, Flossmann, A. I., additional, and Borrmann, S., additional

Published
1994
Full Text
View/download PDF

23. Impacts of Trace Gas Fluxes in Mid-Latitude Ecosystems

Author

Schimel, J., Robertson, G. P., Baldocchi, D., Bogner, J., Davidson, E., Duyzer, J., Ehhalt, D., Fowler, D., Groffman, P., Haider, K., Isadorov, V., Klemedtsson, L., Melillo, J., Smith, K., Su, W. H., Wieprecht, W., and Isodorov, V. A.

Published
1992

25. Nitrous acid in the urban area of Rome

Author

Acker K., Febo A., Trick S., Wiesen P., Bruno P., Geyer A., Auel R., Giusto M., Perrino C., Wieprecht W., Kleffmann J., Moller D., Platt U., and Allegrini I.

Subjects
Rome, air pollution, nitrous acid, urban area
Published
2005

28. The great dun fell cloud experiment 1993

Author

Choularton, T.W., Colvile, R.N., Bower, K.N., Gallagher, M.W., Wells, M., Beswick, K.M., Arends, B.G., Möls, J.J., Kos, G.P.A., Fuzzi, S., Lind, J.A., Orsi, G., Facchini, M.C., Laj, P., Gieray, R., Wieser, P., Engelhardt, T., Berner, A., Kruisz, C., Möller, D., Acker, K., Wieprecht, W., Lüttke, J., Levsen, K., Bizjak, M., Hansson, H.-C., Cederfelt, S.-I., Frank, G., Mentes, B., Martinsson, B., Orsini, D., Svenningsson, B., Swietlicki, E., Wiedensohler, A., Noone, K.J., Pahl, S., Winkler, P., Seyffer, E., Helas, G., Jaeschke, W., Georgii, H.W., Wobrock, W., Preiss, M., Maser, R., Schell, D., Dollard, G., Jones, B., Davies, T., Sedlak, D.L., David, M.M., Wendisch, M., Cape, J.N., Hargreaves, K.J., Sutton, M.A., Storeton-West, R.L., Fowler, D., Hallberg, A., Harrison, R.M., Peak, J.D., and Publica

Subjects
Henry's Law Constant, air flow, atmospheric chemistry, nitrogen oxide, organic molecule, aerosol, entrainment, environmental science and technology, modeling, closure, quality assurance, lagrangian, global warming, transition metal, air quality, ammonia, trace gas, field experiment, acid deposition, sulphur dioxide, cloud, measurement, Instrumentation
Abstract

The 1993 Ground-based Cloud Experiment on Great Dun Fell used a wide range of measurements of trace gases, aerosol particles and cloud droplets at five sites to study their sources and sinks especially those in cloud. These measurements have been interpreted using a variety of models. The conclusions add to our knowledge of air pollution, acidification of the atmosphere and the ground, eutrophication and climate change. The experiment is designed to use the hill cap cloud as a flow-through reactor, and was conducted in varying levels of pollution typical of much of the rural temperate continental norhtern hemisphere in spring-time.

Published
1997

29. Occurence and formation of nitrated phenols in and out of cloud

Author

Lüttke, J., Scheer, V., Levsen, K., Wünsch, G., Cape, J.N., Hargreaves, K.J., Storeton-West, R.L., Acker, K., Wieprecht, W., Jones, B., and Publica

Subjects
BTEX-aromatic, nitrogen oxide, phenol, gas phase, cloud water, liquid-phase reaction
Abstract

In this study, the concentrations of phenol, four nitrated phenols, their precursors and reactants in air and cloud water, are presented. The concentrations in air and cloud water were measured simultaneously at the summit of Great Dun Fell (GDF). The measured concentrations were compared with emission data, leading to the conclusion, that in particular dinitrophenols are formed by atmospheric reactions, while car exhaust accounts to a significant extent for the mononitrophenols observed. The experimental results point to a formation of dinitrophenols in the liquid phase (cloud droplets). This is corroborated by flow tube experiments which show that phenol in aqueous solution reacts with N2O5 and ClNO2 to form nitrophenols.

Published
1997

32. The reduced nitrogen budget of an orographic cloud

Author

Wells, M., Bower, K. N., Choularton, T. W., Cape, J. N., Sutton, M. A., Storeton-West, R. L., Fowler, D., Wiedensohler, A., Hansson, H. -C., Svenningsson, B., Swietlicki, E., Wendisch, M., Jones, B., Dollard, G., Acker, K., Wieprecht, W., Preiss, M., Arends, B. G., Pahl, S., Berner, A., Kruisz, C., Laj, P., Facchini, M. C., Fuzzi, S., Wells, M., Bower, K. N., Choularton, T. W., Cape, J. N., Sutton, M. A., Storeton-West, R. L., Fowler, D., Wiedensohler, A., Hansson, H. -C., Svenningsson, B., Swietlicki, E., Wendisch, M., Jones, B., Dollard, G., Acker, K., Wieprecht, W., Preiss, M., Arends, B. G., Pahl, S., Berner, A., Kruisz, C., Laj, P., Facchini, M. C., and Fuzzi, S.

Abstract

Field data collected during the GDF 93 project indicated that during polluted conditions (SO2(g) > 2 ppbv, NH3(g) > 0.5 ppbv), sulphate and ammonium concentrations in air increased through cloud chemistry by as much as 25%. Similarly, ammonia was seen to be consumed by cloud processing and decreased by up to 20%. In comparatively clean conditions (SO2(g) < 0.5 ppbv, NH3(g) < 0.5 ppbv), the sulphate loading of the aerosol was seen to remain constant, and ammonium was lost from the aerosol and outgassed as ammonia, increasing ambient ammonia concentrations by as much as 0.5 ppbv. An ideal cloud chemistry model predicted up to 20% more sulphate production than is implied by the bulk aerosol data set. A non-ideal cloud chemistry model was used to estimate the final ammonium loading of the aerosol, which is determined by the transformation from wet cloud droplet to dry aerosol particles below their deliquescence point. The non-ideal model showed that in three of the four cases ammonia outgassed from evaporating cloud droplets, consistent with field observations, but at variance with the ideal chemistry model. The results indicate that in low pollution conditions clouds act to re-equilibrate reduced nitrogen in the aerosol phase with gaseous ammonia. The outgassed ammonia will then be rapidly deposited to semi-natural ecosystems downwind of such clouds.

Published
1997

33. The Great Dun Fell Cloud Experiment 1993: an overview

Author

Choularton, T. W., Colvile, R. N., Bower, K. N., Gallagher, M. W., Wells, M., Beswick, K. M., Arends, B. G., Mols, J. J., Kos, G. P. A., Fuzzi, S., Lind, J. A., Orsi, G., Facchini, M. C., Laj, P., Gieray, R., Wieser, P., Engelhardt, T., Berner, A., Kruisz, C., Moller, D., Acker, K., Wieprecht, W., Luttke, J., Levsen, K., Bizjak, M., Hansson, H.-C., Cederfelt, S.-I., Frank, G., Mentes, B., Martinsson, B., Orsine, D., Svenningsson, B., Swietlicki, E., Wiedensohler, A., Noone, K. J., Pahl, S., Winkler, P., Seyffer, E., Helas, G., Jaeschke, W., Georgii, H. W., Wobrock, W., Preiss, M., Maser, R., Schell, D., Dollard, G., Jones, B., Davies, T., Sedlak, D. L., David, M. M., Wendisch, M., Cape, J. N., Hargreaves, K. J., Sutton, M. A., Storeton-West, R. L., Fowler, D., Hallberg, A., Harrison, R. M., Peak, J. D., Choularton, T. W., Colvile, R. N., Bower, K. N., Gallagher, M. W., Wells, M., Beswick, K. M., Arends, B. G., Mols, J. J., Kos, G. P. A., Fuzzi, S., Lind, J. A., Orsi, G., Facchini, M. C., Laj, P., Gieray, R., Wieser, P., Engelhardt, T., Berner, A., Kruisz, C., Moller, D., Acker, K., Wieprecht, W., Luttke, J., Levsen, K., Bizjak, M., Hansson, H.-C., Cederfelt, S.-I., Frank, G., Mentes, B., Martinsson, B., Orsine, D., Svenningsson, B., Swietlicki, E., Wiedensohler, A., Noone, K. J., Pahl, S., Winkler, P., Seyffer, E., Helas, G., Jaeschke, W., Georgii, H. W., Wobrock, W., Preiss, M., Maser, R., Schell, D., Dollard, G., Jones, B., Davies, T., Sedlak, D. L., David, M. M., Wendisch, M., Cape, J. N., Hargreaves, K. J., Sutton, M. A., Storeton-West, R. L., Fowler, D., Hallberg, A., Harrison, R. M., and Peak, J. D.

Abstract

The 1993 Ground-based Cloud Experiment on Great Dun Fell used a wide range of measurements of trace gases, aerosol particles and cloud droplets at five sites to study their sources and sinks especially those in cloud. These measurements have been interpreted using a variety of models. The conclusions add to our knowledge of air pollution, acidification of the atmosphere and the ground, eutrophication and climate change. The experiment is designed to use the hill cap cloud as a flow-through reactor, and was conducted in varying levels of pollution typical of much of the rural temperate continental northern hemisphere in spring-time.

Published
1997

40. Cloud processing of soluble gases

Author

Laj, P., primary, Fuzzi, S., additional, Facchini, M.C., additional, Lind, J.A., additional, Orsi, G., additional, Preiss, M., additional, Maser, R., additional, Jaeschke, W., additional, Seyffer, E., additional, Helas, G., additional, Acker, K., additional, Wieprecht, W., additional, Möller, D., additional, Arends, B.G., additional, Mols, J.J., additional, Colvile, R.N., additional, Gallagher, M.W., additional, Beswick, K.M., additional, Hargreaves, K.J., additional, Storeton-West, R.L., additional, and Sutton, M.A., additional

Published
1997
Full Text
View/download PDF

41. The great dun fell cloud experiment 1993: An overview

Author

Choularton, T.W., primary, Colvile, R.N., additional, Bower, K.N., additional, Gallagher, M.W., additional, Wells, M., additional, Beswick, K.M., additional, Arends, B.G., additional, Möls, J.J., additional, Kos, G.P.A., additional, Fuzzi, S., additional, Lind, J.A., additional, Orsi, G., additional, Facchini, M.C., additional, Laj, P., additional, Gieray, R., additional, Wieser, P., additional, Engelhardt, T., additional, Berner, A., additional, Kruisz, C., additional, Möller, D., additional, Acker, K., additional, Wieprecht, W., additional, Lüttke, J., additional, Levsen, K., additional, Bizjak, M., additional, Hansson, H.-C., additional, Cederfelt, S-I., additional, Frank, G., additional, Mentes, B., additional, Martinsson, B., additional, Orsini, D., additional, Svenningsson, B., additional, Swietlicki, E., additional, Wiedensohler, A., additional, Noone, K.J., additional, Pahl, S., additional, Winkler, P., additional, Seyffer, E., additional, Helas, G., additional, Jaeschke, W., additional, Georgii, H.W., additional, Wobrock, W., additional, Preiss, M., additional, Maser, R., additional, Schell, D., additional, Dollard, G., additional, Jones, B., additional, Davies, T., additional, Sedlak, D.L., additional, David, M.M., additional, Wendisch, M., additional, Cape, J.N., additional, Hargreaves, K.J., additional, Sutton, M.A., additional, Storeton-West, R.L., additional, Fowler, D., additional, Hallberg, A., additional, Harrison, R.M., additional, and Peak, J.D., additional

Published
1997
Full Text
View/download PDF

42. Night-time formation and occurrence of new particles associated with orographic clouds

Author

Wiedensohler, A., primary, Hansson, H.-C., additional, Orsini, D., additional, Wendisch, M., additional, Wagner, F., additional, Bower, K.N., additional, Chourlarton, T.W., additional, Wells, M., additional, Parkin, M., additional, Acker, K., additional, Wieprecht, W., additional, Facchini, M.C., additional, Lind, J.A., additional, Fuzzi, S., additional, Arends, B.G., additional, and Kulmalao, M., additional

Published
1997
Full Text
View/download PDF

43. The budget of oxidised nitrogen species in orographic clouds

Author

Cape, J.N., primary, Hargreaves, K.J., additional, Storeton-West, R.L., additional, Jones, B., additional, Davies, T., additional, Colvile, R.N., additional, Gallagher, M.W., additional, Choularton, T.W., additional, Pahl, S., additional, Berner, A., additional, Kruisz, C., additional, Bizjak, M., additional, Laj, P., additional, Facchini, M.C., additional, Fuzzi, S., additional, Arends, B.G., additional, Acker, K., additional, Wieprecht, W., additional, Harrison, R.M., additional, and Peak, J.D., additional

Published
1997
Full Text
View/download PDF

44. The reduced nitrogen budget of an orographic cloud

Author

Wells, M., primary, Bower, K.N., additional, Choularton, T.W., additional, Cape, J.N., additional, Sutton, M.A., additional, Storeton-West, R.L., additional, Fowler, D., additional, Wiedensohler, A., additional, Hansson, H.-C., additional, Svenningsson, B., additional, Swietlicki, E., additional, Wendisch, M., additional, Jones, B., additional, Dollard, G., additional, Acker, K., additional, Wieprecht, W., additional, Preiss, M., additional, Arends, B.G., additional, Pahl, S., additional, Berner, A., additional, Kruisz, C., additional, Laj, P., additional, Facchini, M.C., additional, and Fuzzi, S., additional

Published
1997
Full Text
View/download PDF

45. Observations and modelling of the processing of aerosol by a hill cap cloud

Author

Bower, K.N., primary, Choularton, T.W., additional, Gallagher, M.W., additional, Colvile, R.N., additional, Wells, M., additional, Beswick, K.M., additional, Wiedensohler, A., additional, Hansson, H.-C., additional, Svenningsson, B., additional, Swietlicki, E., additional, Wendisch, M., additional, Berner, A., additional, Kruisz, C., additional, Laj, P., additional, Facchini, M.C., additional, Fuzzi, S., additional, Bizjak, M., additional, Dollard, G., additional, Jones, B., additional, Acker, K., additional, Wieprecht, W., additional, Preiss, M., additional, Sutton, M.A., additional, Hargreaves, K.J., additional, Storeton-West, R.L., additional, Cape, J.N., additional, and Arends, B.G., additional

Published
1997
Full Text
View/download PDF

47. Hydrogen Peroxide, Organic Peroxides and Higher Carbonyl Compounds Determined during the BERLIOZ Campaign.

Author

Moortgat, G.K., Grossmann, D., Boddenberg, A., Dallmann, G., Ligon, A.P., Turner, W.V., Gab, S., Slemr, F., Wieprecht, W., Acker, K., Kibler, M., Schlomski, S., and Bachmann, K.

Subjects
HYDROGEN peroxide, PEROXIDES, CARBONYL compounds
Abstract

Determines gas-phase hydrogen peroxide (H[sub 2]O[sub 2]), organic peroxides and carbonyl compounds at various sites from mid-July to early August 1998 during the BERLIOZ campaign in Berlin, Germany. Instrument intercalibration measurement of H[sub2]O[sub2] as preparation for the BERLIOZ campaign; Comparison of the total hydroperoxide mixing ratios; Analysis of H[sub2]O[sub2], organic peroxides and carbonyl compounds.

Published
2002
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results