Search Results - "Krankowsky, D."

Stratospheric ozone isotope fractionations derived from collected samples by Krankowsky, D., Lämmerzahl, P., Mauersberger, K., Janssen, C., Tuzson, B., Röckmann, T.

“…Oxygen isotope ratios in ozone show an unusual enrichment when compared with expected values. New results are reported that have been determined from samples…”
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Ozone Isotope Enrichment: Isotopomer-Specific Rate Coefficients by Mauersberger, K., Erbacher, B., Krankowsky, D., Günther, J., Nickel, R.

“…Six rate coefficients of relative ozone formation contradict the role of molecular symmetry in the process that results in the enrichment of heavy ozone…”
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Stratospheric ozone isotope enrichments-Revisited by Mauersberger, Konrad, Lämmerzahl, Peter, Krankowsky, Dieter

“…Ozone isotope data for 49O3 and 50O3 are presented, that were obtained from 28 stratospheric samples collected over 10 years onboard balloon payloads…”
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Oxygen Isotope Processes and Transfer Reactions by Mauersberger, K, Krankowsky, D, Janssen, C

“…A unique kinetic isotope effect has been found in the formation process of ozone molecules. Isotope enrichments of about 10% above statistically expected…”
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Isotopic measurements of stratospheric ozone by Krankowsky, Dieter, Lämmerzahl, Peter, Mauersberger, Konrad

“…Isotope ratios of stratospheric ozone samples collected during four balloon flights are reported. In an altitude range between 22 and 33 km all ratios show…”
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Comment on “Low-pressure dependency of the isotopic enrichment in ozone: Stratospheric implications” by S. K. Bhattacharya et al by Krankowsky, D., Janssen, C., Mauersberger, K.

“…Bhattacharya et al. [2002] (hereinafter referred to as BCST) proposed that in addition to heavy ozone enhancement during its formation process the ozone loss…”
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Heavy Ozone-A Difficult Puzzle to Solve by Krankowsky, Dieter, Mauersberger, Konrad

“…Although not abundant, ozone is one of the most important constituents of the atmosphere. The isotopic variants of ozone, which is a symmetric triangular…”
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In situ gas and ion measurements at comet Halley by Krankowsky, D., Laemmerzahl, P., Herrwerth, I., Woweries, J., Eberhardt, P.

“…The Giotto space probe's neutral mass spectrometer experiment has determined the abundances and the chemical, elemental and isotopic compositions of gases and…”
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Temperature dependence of ozone rate coefficients and isotopologue fractionation in 16O-18O oxygen mixtures by JANSSEN, C, GUENTHER, J, KRANKOWSKY, D, MAUERSBERGER, K

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Collection and analysis of atmospheric ozone samples by STEHR, J, KRANKOWSKY, D, MAUERSBERGER, K

“…Anomalies found in the isotope ratios of ozone are traceable to the ozone formation process. Metastable electronic states may be responsible for the preferred…”
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Vapor pressure above ice at temperatures below 170 K by Mauersberger, Konrad, Krankowsky, Dieter

“…Ice clouds in the earth's atmosphere and the presence of ices in comets and on planetary surfaces have raised the interest in the formation and existence of…”
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Oxygen isotope composition of stratospheric carbon dioxide by Lämmerzahl, Peter, Röckmann, Thomas, Brenninkmeijer, Carl A. M., Krankowsky, Dieter, Mauersberger, Konrad

“…Heavy oxygen isotope enrichment in stratospheric CO2 has been identified in the past as a direct result of the large O3 isotope anomaly though no simultaneous…”
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Water vapour concentrations at the mesopause by ARNOLD, F, KRANKOWSKY, D

“…Water vapor concentrations are derived at heights between 85 and 94 km from two rocketborne mass spectrometer measurements of atmospheric positive ions. The…”
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First mass spectrometric measurements of positive ions in the stratosphere by ARNOLD, F, KRANKOWSKY, D, MARIEN, K. H

“…Three experiments were made at high latitudes by using rocketborne cryogenically pumped quadrupole mass filters. Mass spectra of positive ions at stratospheric…”
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Pressure dependence of two relative ozone formation rate coefficients by Guenther, Juergen, Erbacher, Burkard, Krankowsky, Dieter, Mauersberger, Konrad

“…The large enrichment observed in many ozone isotopomers has a pronounced pressure and temperature dependence and has been traced to rate coefficient advantages…”
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Temperature dependence of ozone rate coefficients and isotopologue fractionation in [formula omitted] oxygen mixtures by Janssen, C., Guenther, J., Krankowsky, D., Mauersberger, K.

“…The temperature dependence of five ozone isotope-specific rate coefficient ratios and of isotopologue fractionation has been determined. Large formation rate…”
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Venus Thermosphere: In situ Composition Measurements, the Temperature Profile, and the Homopause Altitude by von Zahn, U., Krankowsky, D., Mauersberger, K., Nier, A. O., Hunten, D. M.

“…The neutral mass spectrometer on board the Pioneer Venus multiprobe bus measured composition and structural parameters of the dayside Venus upper atmosphere on…”
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Comment on: Low-pressure dependency of the isotopic enrichment in ozone : Stratospheric implications. Authors' reply by KRANKOWSKY, D, JANSSEN, C, MAUERSBERGER, K, BHATTACHARYA, S. K, CHAKRABORTY, Subrata, SAVARINO, Joel, THIEMENS, Mark H

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The Pioneer Venus Bus Neutral Gas Mass Spectrometer by Hoffmann, H.-J., Pelka, K., Zahn, U. Von, Krankowsky, D., Linkert, D.

“…The neutral gas mass spectrometer aboard the Pioneer Venus Multiprobe Bus employs a semi-open ion source with electron impact ionization of the ambient gas, a…”
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Physical Sciences: Detection of Water Cluster Ions at the High Latitude Summer Mesopause by JOHANNESSEN, A, KRANKOWSKY, D, ARNOLD, F, RIEDLER, W, FRIEDRICH, M, FOLKESTAD, K, SKOVLI, G, THRANE, E. V, TRÖIM, J

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