Peer-Reviewed Publications

Schumann, U. ; Kiemle, C. ; Schlager, H. ; Weigel, R. ; Borrmann, S. ; D'amato, F. ; Krämer, M. ; Matthey, R. ; Protat, A. ; Voigt, C. ; Volk, M.
Long-lived contrails and convective cirrus above the tropical tropopause
Atmospheric chemistry and physics / Discussions , (2016), 10.5194/acp-2016-940

Kaufmann, M., J. Blank, T. Guggenmoser, J. Ungermann, A. Engel, M. Ern, F. Friedl-Vallon, D. Gerber, J. U. Grooss, G. Guenther, M. Hoepfner, A. Kleinert, Th. Latzko, G. Maucher, T. Neubert, H. Nordmeyer, H. Oelhaf, F. Olschewski, J. Orphal, P. Preusse, H. Schlager, H. Schneider, D. Schuettemeyer, F. Stroh, O. Suminska-Ebersoldt, B. Vogel, C. M. Volk, W. Woiwode, and M. Riese, Retrieval of three-dimensional small scale structures in upper tropospheric / lower stratospheric composition as measured by GLORIA, Atmos. Meas. Tech., 8, 81-95, doi:10.5194/amt-8-81-2015, 2015.

Tao, M., P. Konopka, F. Ploeger, J.-U. Grooß, R. Müller, C. M. Volk, K. A. Walker, and M. Riese, Impact of the 2009 major sudden stratospheric warming on the composition of the stratosphere, Atmos. Chem. Phys., 15, 8695-8715, doi:10.5194/acp-15-8695-2015, 2015.

Tao, M., P. Konopka, F. Ploeger, M. Riese, R. Müller, and C. M. Volk, Impact of stratospheric major warmings and the quasi-biennial oscillation on the variability of stratospheric water vapor, Geophys. Res. Lett., 42, doi:10.1002/2015GL064443, 2015.

Woiwode, W., O. Suminska-Ebersoldt, H. Oelhaf, M. Höpfner, G. V. Belyaev, A. Ebersoldt, F. Friedl-Vallon, J.-U. Grooß, T. Gulde, M. Kaufmann, A. Kleinert, M. Krämer, E. Kretschmer, T. Kulessa, G. Maucher, T. Neubert, C. Piesch, P. Preusse, M. Riese, H. Rongen, C. Sartorius, G. Schardt, A. Schönfeld, D. Schuettemeyer, M. K. Sha, F. Stroh, J. Ungermann, C. M. Volk, and J. Orphal, Validation of first chemistry mode retrieval results from the new limb-imaging FTS GLORIA with correlative MIPAS-STR observations, Atmos. Meas. Tech., 8, 2509–2520, doi:10.5194/amt-8-2509-2015, 2015.

Hoffmann, L., C. M. Hoppe, R. Müller, G . S. Dutton, J. C. Gille, S. Griessbach, A. Jones, C. I . Meyer, R. Spang, C. M. Volk, and K. A. Walker, Stratospheric lifetime ratio of CFC- 11 and CFC-12 from satellite and model climatologies, Atmos. Chem. Phys., 14, 12479-12497, doi:10.5194/acp-14-12479-2014, 2014.

Pommrich, R., R. Müller, J.-U. Grooß, P. Konopka, F. Ploeger, B. Vogel, M. Tao, C. M. Hoppe, G. Günther, N. Spelten, L. Hoffmann, H.-C. Pumphrey, S. Viciani, F. D’Amato, C. M. Volk, P. Hoor, H. Schlager, and M. Riese, Tropical troposphere to stratosphere transport of carbon monoxide and long-lived trace species in the Chemical Lagrangian Model of the Stratosphere (CLaMS), Geosci. Model Dev., 7, 2895-2916, doi:10.5194/gmd-7-2895-2014, 2014.

Weigel, R., C. M. Volk, K. Kandler, E. Hösen, G. Günther, B. Vogel, J.-U. Grooß, S. Khaykin, G. Belyaev, and S. Borrmann, Enhancements of the refractory submicron aerosol fraction in the Arctic polar vortex: feature or exception?, Atmos. Chem. Phys., 14, 12319-12342 doi:10.5194/acp-14-12319-2014, 2014.

Brown, A. T., C. M. Volk, M. R. Schoeberl, C. D. Boone, and P. F. Bernath, Stratospheric lifetimes of CFC-12, CCl4, CH4, CH3Cl and N2O from measurements made by the Atmospheric Chemistry Experiment-Fourier Transform Spectrometer (ACE-FTS), Atmos. Chem. Phys., 13, 6921-6950, doi:10.5194/acp-13-6921-2013, 2013.

Engel, A., E. L. Atlas, P. F. Bernath, H. Bönisch, A. Brown, J. Laube, K. R. Minschwaner, S. A. Montzka, S. O’Doherty, R. G. Prinn, M. Rigby, S. M. Schauffler, C. M. Volk, S. A. Yvon-Lewis, Inferred lifetimes from observed trace-gas distributions, in: SPARC Report on the Lifetimes of Stratospheric Ozone-Depleting Substances, Their Replacements, and Related Species, M. Ko, P. Newman, S. Reimann, S. Strahan (Eds.), SPARC Report No. 6, WCRP-15/2013.

Ko, M. K. W., P. A. Newman, S. Reimann, S. E. Strahan, E. L. Atlas, J. B. Burkholder, M. Chipperfield, A. Engel, Q. Liang, W. Mellouki, R. A. Plumb, R. S. Stolarski, and C. M. Volk, Recommended values for steady-state atmospheric lifetimes and their uncertainties, in: SPARC Report on the Lifetimes of Stratospheric Ozone-Depleting Substances, Their Replacements, and Related Species, M. Ko, P. Newman, S. Reimann, S. Strahan (Eds.), SPARC Report No. 6, WCRP-15/2013.

Laube, J. C., A. Keil, H. Bönisch, A. Engel, T. Röckmann, C. M. Volk, and W. T. Sturges, Observation-based assessment of stratospheric fractional release, lifetimes, and Ozone Depletion Potentials of ten important source gases, Atmos. Chem. Phys., 13, 2779-2791, doi:10.5194/acp-13-2779-2013, 2013.

Plumb, R. A., R. S. Stolarski, M. I. Hegglin, M. J. Prather, and C. M. Volk, The theory of estimating lifetimes using models and observations, in: SPARC Report on the Lifetimes of Stratospheric Ozone-Depleting Substances, Their Replacements, and Related Species, M. Ko, P. Newman, S. Reimann, S. Strahan (Eds.), SPARC Report No. 6, WCRP-15/2013.

von Hobe, M., S. Bekki, S. Borrmann, F. Cairo, F. D'Amato, G. Di Donfrancesco, A. Dörnbrack, A. Ebersoldt, M. Ebert, C. Emde, I. Engel, M. Ern, W. Frey, S. Genco, S. Griessbach, J.-U. Grooß, T. Gulde, G. Günther, E. Hösen, L. Hoffmann, V. Homonnai, C. R. Hoyle, I. S. A. Isaksen, D. R. Jackson, I. M. Jánosi, R. L. Jones, K. Kandler, C. Kalicinsky, A. Keil, S. M. Khaykin, F. Khosrawi, R. Kivi, J. Kuttippurath, J. C. Laube, F. Lefèvre, R. Lehmann, S. Ludmann, B. P. Luo, M. Marchand, J. Meyer, V. Mitev, S. Molleker, R. Müller, H. Oelhaf, F. Olschewski, Y. Orsolini, T. Peter, K. Pfeilsticker, C. Piesch, M. C. Pitts, L. R. Poole, F. D. Pope, F. Ravegnani, M. Rex, M. Riese, T. Röckmann, B. Rognerud, A. Roiger, C. Rolf, M. L. Santee, M. Scheibe, C. Schiller, H. Schlager, M. Siciliani de Cumis, N. Sitnikov, O. A. Søvde, R. Spang, N. Spelten, F. Stordal, O. Sumińska-Ebersoldt, A. Ulanovski, J. Ungermann, S. Viciani, C. M. Volk, M. vom Scheidt, P. von der Gathen, K. Walker, T. Wegner, R. Weigel, S. Weinbruch, G. Wetzel, F. G. Wienhold, I. Wohltmann, W. Woiwode, I. A. K. Young, V. Yushkov, B. Zobrist, and F. Stroh, Reconciliation of essential process parameters for an enhanced predictability of Arctic stratospheric ozone loss and its climate interactions (RECONCILE): activities and results, Atmos. Chem. Phys., 13, 9233-9268, doi:10.5194/acp-13-9233-2013, 2013.

Wohltmann, I., T. Wegner, R. Müller, R. Lehmann, M. Rex, G. L. Manney, M. L. Santee, P. Bernath, O. Sumińska-Ebersoldt, F. Stroh, M. von Hobe, C. M. Volk, E. Hösen, F. Ravegnani, A. Ulanovsky, and V. Yushkov, Uncertainties in modelling heterogeneous chemistry and Arctic ozone depletion in the winter 2009/2010, Atmos. Chem. Phys., 13, 3909-3929, doi:10.5194/acp-13-3909-2013, 2013.

Suminska-Ebersoldt, O., R. Lehmann, T. Wegner, J.-U. Grooß, E. Hösen, R. Weigel, W. Frey, S. Griessbach, V. Mitev, C. Emde, C. M. Volk, S. Borrmann, M. Rex, F. Stroh, and M. von Hobe, ClOOCl photolysis at high solar zenith angles: analysis of the RECONCILE self-match flight, Atmos. Chem. Phys., 12, 1353-1365, doi:10.5194/acp-12-1353-2012, 2012.

Ungermann, J., C. Kalicinsky, F. Olschewski, P. Knieling, L. Hoffmann, J. Blank, W. Woiwode, H. Oelhaf, E. Hösen, C.M. Volk, A. Ulanovsky, F. Ravegnani, K. Weigel, F. Stroh, and M. Riese, CRISTA-NF measurements with unprecedented vertical resolution during the RECONCILE aircraft campaign, Atmos. Meas. Tech., 5, 1173-1191, doi:10.5194/amt-5-1173-2012, 2012.

Wegner, T., J.-U. Grooß, M. von Hobe, F. Stroh, O. Suminska-Ebersoldt, C. M. Volk, E. Hösen, V. Mitev, G. Shur, and R. Müller, Heterogeneous chlorine activation on stratospheric aerosols and clouds in the Arctic polar vortex, Atmos. Chem. Phys., 12, 11095-11106, doi:10.5194/acp-12-11095-2012 , 2012.

Woiwode, W., H. Oelhaf, T. Gulde, C. Piesch, G. Maucher, A. Ebersoldt, C. Keim, M. Höpfner, S. Khaykin, F. Ravegnani, A. Ulanovsky, C. M. Volk, E. Hösen, A. Dörnbrack, J. Ungermann, C. Kalicinsky, and J. Orphal, MIPAS-STR measurements in the Arctic UTLS in winter/spring 2010: instrument characterization, retrieval and validation, Atmos. Meas. Tech., 5, 1205-1228, doi:10.5194/amt-5-1205-2012, 2012.

Fierli, F., E. Orlandi, K. S. Law, C. Cagnazzo, S. Borrmann, F. Cairo, C. Schiller, F. Ravegnani, and C. M. Volk, Impact of deep convection in the tropical tropopause layer in West Africa: in-situ observations and mesoscale modelling, Atmos. Chem. Phys., 11, 201 - 214, doi:10.5194/acp-11-201-2011, 2011.

Frey, W.; S. Borrmann, D. Kunkel, R. Weigel, M. de Reus, H. Schlager, A. Roiger, C. Voigt, P. Hoor, J. Curtius, M. Krämer, C. Schiller, C. M. Volk, C. D. Homan, F. Fierli, G. Di Donfrancesco, A. Ulanovsky, R. Ravegnani, N. M. Sitnikov, S. Viciani, F. D'Amato, G. N. Shur, G. V. Belyaev, K. S. Law, and F. Cairo, In-situ measurements of tropical cloud properties in the West African monsoon: upper tropospheric ice clouds, mesoscale convective system outflow, and subvisual cirrus, Atmos. Chem. Phys., 11, 5569 - 5590, doi:10.5194/acp-11-5569-2011, 2011.

Weigel, R.; S. Borrmann, J. Kazil, A. Minikin, A. Stohl, J. C.  Wilson, J. M. Reeves, D. Kunkel, M. de Reus, W. Frey, E. R. Lovejoy, C. M. Volk, S. Viciani, F. D'Amato, C. Schiller, T. Peter, H. Schlager, F. Cairo, K. S. Law, G. N. Shur, G. V. Belyaev, and J. Curtius, In situ observations of new particle formation in the tropical upper troposphere: The role of clouds and the nucleation mechanism, Atmos. Chem. Phys., 11, 9983 - 10010, doi:10.5194/acp-11-9983-2011, 2011.

Borrmann, S., D. Kunkel, R. Weigel, A. Minikin, T. Deshler, J. C. Wilson, J. Curtius, C. M. Volk, C. D. Homan, A. Ulanovsky, F. Ravegnani, S. Viciani, G. N. Shur, G. V. Belyaev, K. S. Law, and F. Cairo, Aerosols in the tropical and subtropical UT/LS: in-situ measurements of submicron particle abundance and volatility, Atmos. Chem. Phys., 10, 5573–5592, doi:10.5194/acp-10-5573-2010, 2010.

Cairo, F., J. P. Pommereau, K. S. Law, H. Schlager, A. Garnier, F. Fierli, M. Ern, M. Streibel, S. Arabas, S. Borrmann, J. J. Berthelier, C. Blom, T. Christensen, F. D'Amato, G. Di Donfrancesco, T. Deshler, A. Diedhiou, G. Durry, O. Engelsen, F. Goutail, N. R. P. Harris, E. R. T. Kerstel, S. Khaykin, P. Konopka, A. Kylling, N. Larsen, T. Lebel, X. Liu, A. R. MacKenzie, J. Nielsen, A. Oulanowski, D. J. Parker, J. Pelon, J. Polcher, J. A. Pyle, F. Ravegnani, E. D. Rivière, A. D. Robinson, T. Röckmann, C. Schiller, F. Simões, L. Stefanutti, F. Stroh, L. Some, P. Siegmund, N. Sitnikov, J. P. Vernier, C. M. Volk, C. Voigt, M. von Hobe, S.Viciani, and V. Yushkov, An introduction to the SCOUT-AMMA stratospheric aircraft, balloons and sondes campaign in West Africa, August 2006: rationale and roadmap, Atmos. Chem. Phys., 10, 2237–2256, 2010.

Homan, C. D., C. M. Volk, A. C. Kuhn, A. Werner, J. Baehr, S. Viciani, A. Ulanovski, and F. Ravegnani
Tracer measurements in the tropical tropopause layer during the AMMA/SCOUT-O3 aircraft campaign, Atmos. Chem. Phys., 10, 3615–3627, doi:10.5194/acp-10-3615-2010, 2010.

Law, K. S., F. Fierli, F. Cairo, H. Schlager, S. Borrmann, M. Streibel, E. Real, D. Kunkel, C. Schiller, F. Ravegnani, A. Ulanovsky, F. d’Amato, S. Viciani, and C. M. Volk, Air mass origins influencing TTL chemical composition over West Africa during 2006 summer monsoon, Atmos. Chem. Phys., 10, 10753-10770, 2010.

Real, E., E. Orlandi, K. S. Law, F. Fierli, D. Josset, F. Cairo, H. Schlager, S. Borrmann, D. Kunkel, C. M. Volk, J. B. McQuaid, D. J. Stewart, J. Lee, A. Lewis, J. R. Hopkins, F. Ravegnani, A. Ulanovski, and C. Liousse, Cross-hemispheric transport of central African biomass burning pollutants: implications for downwind ozone production, Atmos. Chem. Phys., 10, 3027–3046, 2010.

Weigel, K., M. Riese, L. Hoffmann, S. Hoefer, C. Kalicinsky, P. Knieling, F. Olschewski, P. Preusse, F. Stroh, R. Spang, and C. M. Volk, CRISTA-NF measurements during the AMMA-SCOUT-O3 aircraft campaign, Atmos. Meas. Tech., 3, 1437-1455, 2010.

Werner, A., C. M. Volk, E. V. Ivanova, T. Wetter, C. Schiller, H. Schlager, and P. Konopka, Quantifying transport into the Arctic lowermost stratosphere, Atmos. Chem. Phys., 10, 11623-11639, 2010.

Palazzi, E., F. Fierli, F. Cairo, C. Cagnazzo, G. Di Donfrancesco, E. Manzini, F. Ravegnani, C. Schiller, F. D'Amato, and C. M. Volk, Diagnostics of the Tropical Tropopause Layer from in-situ observations and CCM data, Atmos. Chem. Phys., 9, 9349-9367, 2009.

Payan, S., C. Camy-Peyret, H. Oelhaf, G. Wetzel, G. Maucher, C. Keim, M. Pirre, A Engel, C. M. Volk, J. Kuttippurath, U. Cortesi, P. Raspollini, C. Vigouroux, M. De Mazière, C. Piccolo, V. Payne, A. Bracher, N. Glatthor, G. Stiller, K. Grunow, A. Butz, Validation and data characteristics of methane and nitrous oxide profiles observed by MIPAS and processed with Version 4.61 algorithm, Atmos. Chem. Phys., 9, 413–442, 2009.

Cairo, F., C. Buontempo, A. R. MacKenzie, C. Schiller, C. M. Volk, A. Adriani, V. Mitev, R. Matthey, G. Di Donfrancesco, A. Oulanovsky, F. Ravegnani, S. Rudakov, V. Yushkov, M. Snels, L. Stefanutti, Morphology of the tropopause layer and lower stratosphere above a tropical cyclone: A case study on cyclone Davina (1999), Atmos. Chem. Phys., 8, 3411–3426, 2008.

Grooß, J.-U., R. Müller, P. Konopka, H.-M. Steinhorst, A. Engel, T. Möbius, and C. M. Volk, The impact of mixing across the polar vortex edge on Match ozone loss estimates, Atmos. Chem. Phys., 8, 565–578, 2008.

Günther, G., R. Müller, M. von Hobe, F. Stroh, P. Konopka, and C. M. Volk, Quantification of Transport across the Boundary of the Lower Vortex during Arctic Winter 2002/2003, Atmos. Chem. Phys., 8, 3655–3670, 2008.

Hoffmann, L., M. Kaufmann, R. Spang, R. Müller, J. J. Remedios, D. P. Moore, C. M. Volk, T. von Clarmann, and M. Riese, Envisat MIPAS measurements of CFC-11: Retrieval, Validation, and Climatology, Atmos. Chem. Phys., 8, 3671–3688, 2008.

Ivanova, E. V., C. M. Volk, O. Riediger, H. Klein, N. M. Sitnikov, A. E. Ulanovskii, V. A. Yushkov, F. Ravegnani, T. Möbius, and U. Schmidt, A quasi-Lagrangian coordinate system based on high resolution tracer observations: implementation for the Antarctic polar vortex, Atmos. Chem. Phys. Discuss., 8, 16123–16173, 2008.

Schofield, R., K. Frieler, I. Wohltmann, M. Rex, M. von Hobe, F. Stroh, G. Koch, T. Peter, T. Canty, R. Salawitch, C. M. Volk, Polar Stratospheric Chlorine Kinetics from a Self-Match Flight during SOLVE-II/EUPLEX, Geophys. Res. Lett., 35, L01807, doi:10.1029/2007GL031740, 2008.

Feng, W., M. P. Chipperfield, S. Davies, P. von der Gathen, E. Kyrö, C. M. Volk, A. Ulanovsky, G. Belyaev, Large chemical ozone loss in 2004/05 Arctic winter/spring, Geophys. Res. Lett., 34, L09803, doi:10.1029/2006GL029098, 2007.

Konopka, P., G. Günther, R. Müller, F. H. S. dos Santos, C. Schiller, F. Ravegnani, A. Ulanovsky, H. Schlager, C. M. Volk, S. Viciani, L. Pan, D.-S. McKenna, M. Riese, Contribution of mixing to the upward transport across the TTL, Atmos. Chem. Phys., 7, 3285–3308, 2007.

Tripathi, O.P., S. Godin-Beekmann, F. Lefèvre, M. Marchand, A. Pazmiño, A. Hauchecorne, F. Goutail, H. Schlager, C. M. Volk, B. Johnson, G. König-Langlo, S. Balestri, F. Stroh, T. P. Bui, H. J. Jost, T. Deshler, P. von der Gathen, High resolution simulation of recent Arctic and Antarctic stratospheric chemical ozone loss compared to observations, J. Atm. Chem., DOI:10.1007/s10874-006-9028-8, 2006.

von Hobe, M., A. Ulanovsky, C. M. Volk, J.-U. Grooß, S. Tilmes, P. Konopka, G. Günther, A. Werner, N. Spelten, G. Shur, V. Yushkov, F. Ravegnani, C. Schiller, R. Müller, and F. Stroh, Severe ozone depletion in  the cold Arctic winter 2004-05, Geophys. Res. Lett., 33, L17815, doi:10.1029/2006GL026945, 2006.

Curtius, J., R. Weigel, H.-J. Vössing, H. Wernli, A. Werner, C.-M. Volk, P. Konopka, M. Krebsbach, C. Schiller,A. Roiger, H. Schlager, V. Dreiling, and S. Borrmann, Observations of meteoritic material and implications for aerosol nucleation in the winter Arctic lower stratosphere derived from in situ particle measurements, Atmos. Chem. Phys., 5, 1-25, 2005.

Feng, W., M.P. Chipperfield, S. Davies, B. Sen, G. Toon, J.F. Blavier, C.R.Webster, C. M. Volk, A. Ulanovsky, F. Ravegnani, P. von der Gathen, H. Jost, E.C. Richard, and H. Claude, Three-Dimensional Model Study of the Arctic Ozone Loss in 2002/2003 and Comparison with 1999/2000 and 2003/2004, Atmos. Chem. Phys., 5, 139–152, 2005.

Giovanelli, G., D. Bortoli, A. Petritoli, E. Castelli, I. Kostadinov, F. Ravegnani, G.Redaelli, C. M. Volk, U. Cortesi, G. Bianchini, and B. Carli, Stratospheric minor gas distribution over the Antarctic Peninsula during the APE-GAIA campaign, Int. J. Rem. Sens., 26, 3343 - 3360, 2005.

Grooß, J.-U., G. Günther, R. Müller, P. Konopka, S. Bausch, H. Schlager, C. Voigt, C. M. Volk, and G.C. Toon, Simulation of denitrification and ozone loss for the Arctic winter 2002/2003, Atmos. Chem. Phys., 5, 1437–1448, 2005.

Stefanutti, L., R. MacKenzie, V. Santacesaria, A. Adriani, S. Balestri, S. Borrmann, V. Khattatov, P. Mazzinghi, S. Merkulov, V. Mitev, Th. Peter, V. Rudakov, C. Schiller, G. Toci, C. M. Volk, V. Yushkov, H. Flentje, C. Kiemle, The APE-THESO tropical campaign: An overview, J. Atm. Chem., 48, 1-33, 2004.

Ulanovskii, A.E., A.N. Lukyanov, V.A. Yushkov, N.M. Sitnikov, M. Volk, E.V. Ivanova, and F. Ravegnani, Estimate of chemical ozone depletion in the Antarctic stratosphere in winter/spring 1999 from in situ data and model simulations, Iyvestiya, Atm. Ocean. Phys., 40, 695-703, 2004 (in Russian).

Luo, B.P., Th. Peter, S. Fueglistaler, H. Wernli, M. Wirth, C. Kiemle, H. Flentje, V.A. Yushkov, V. Khattatov, V. Rudakov, A. Thomas, S. Borrmann, G. Toci, P. Mazzinghi, J. Beuermann, C. Schiller, F. Cairo, G. Di Donfrancesco, A. Adriani, C. M. Volk, J. Strom, K. Noone, V. Mitev, R.A. MacKenzie, K.S. Carslaw, T. Trautmann, V. Santacesaria, L. Stefanutti, Dehydration potential of ultrathin clouds at the tropical tropopause, Geophys. Res. Lett., 30(11), 1557, doi:10.1029/2002GL016737, 2003.

Luo, B.P., Th. Peter, H. Wernli, S. Fueglistaler, M. Wirth, C. Kiemle, H. Flentje, V. A. Yushkov, V. Khattatov, V. Rudakov, A. Thomas, S. Borrmann, G. Toci, P. Mazzinghi, J. Beuermann, C. Schiller, F. Cairo, G. Di Don-francesco, A. Adriani, C. M. Volk, J. Strom, K. Noone, V. Mitev, R. A. MacKenzie, K. S. Carslaw, T. Trautmann, V. Santacesaria, and L. Stefanutti, Ultrathin Tropical Tropopause Clouds (UTTCs): II. Stabilization mechanisms, Atmos. Chem. Phys., 3, 1093-1100, 2003.

Peter, Th., B. P. Luo, H. Wernli, M. Wirth, C. Kiemle, H. Flentje, V. A. Yushkov, V. Khattatov, V. Rudakov, A. Thomas, S. Borrmann, G. Toci, P. Mazzinghi, J. Beuermann, C. Schiller, F. Cairo, G. Di Don-francesco, A. Adriani, C. M. Volk, J. Strom, K. Noone, V. Mitev, R. A. MacKenzie, K. S. Carslaw, T. Trautmann, V. Santacesaria, and L. Stefanutti, Ultrathin Tropical Tropopause Clouds (UTTCs): I. Cloud morphology and occurrence, Atmos. Chem. Phys., 3, 1083-1091, 2003.

Thomas, A., S. Borrmann, C. Kiemle, F. Cairo, M. Volk, J. Beuermann, B. Lepuchov, V. Santacesaria, R. Matthey, V. Rudakov, V. Yushkov, A. R. MacKanzie, and L. Stefanutti, In-situ measurements of background aerosol and subvisible cirrus in the tropcial tropopause region, J. Geophys. Res, 107 (D24), 4763, 10.1029/2001JD001385, 2002.

Carslaw, K. S., H. Oelhaf, J. Crowley, F. Goutail, B. Knudsen, N. Larsen, W. Norton, G. Redaelli, M. Rex, H. Roscoe, R. Ruhnke, and C. M. Volk, Polar Ozone, in: 2nd Assessment of European Research on the Stratosphere (1996-2000), Office for Official Publications of the European Commission, Luxemburg, 69-132., 2001.

Strunk, M., A. Engel, U. Schmidt, C. M. Volk, and T. Wetter, I. Levin, H. Glatzel-Mattheier, CO2 and SF6 as stratospheric age tracers: consistency and the effect of mesospheric SF6-loss, Geophys. Res. Lett., 27, 341-344, 2000.

Prinn, R. G., R. Zander, D. M. Cunnold, J. W. Elkins, A. Engel, P. J. Fraser, M. R. Gunson, M. K. W. Ko, E. Mahieu, P. M. Midglez, J. M. Russel III, C. M. Volk, and R. F. Weiss, Long-lived ozone-related compounds, in: Scientific Assessment of Ozone Depletion, World Meteorological Organization, Global Ozone Research and Monitoring Project - Report No. 44, 1.1-1.54, 1999.

Wamsley, P.R., J.W. Elkins, D.W. Fahey, G.S. Dutton, C. M. Volk, R.C. Myers, S.A. Montzka, J.H. Butler, A.D. Clarke, P.J. Fraser, L.P. Steele, M.P. Lucarelli, E.L. Atlas, S.M. Schauffler, D.R. Blake, F.S. Rowland, W.T. Sturges, J.M. Lee, S.A. Penkett, A. Engel, R.M. Stimpfle, K.R. Chan, D.K. Weisenstein, M.K.W. Ko, and R.J. Salawitch, Distribution of halon-1211 in the upper troposphere and lower stratosphere and the 1994 total bromine budget, J. Geophys. Res., 103,  1513-1526, 1998.

Volk, C. M., J.W. Elkins, D.W. Fahey, G.S. Dutton, J.M. Gilligan, M. Loewenstein, J.R. Podolske, K.R. Chan, and M.R. Gunson, Evaluation of source gas lifetimes from stratospheric observations, J. Geophys. Res., 102, 25,543-25,564, 1997.

Waugh, D.W., T.M. Hall, W.J. Randel, P.J. Rasch, B.A. Boville, K.A. Boering, S.C. Wofsy, D.C. Daube, J.W. Elkins, D.W. Fahey, G.S.Dutton, C. M. Volk, and P. Vohralik, Three-dimensional simulations of long-lived tracers using winds from MACCM2, J. Geohphys. Res., 102, 21,493-21,513, 1997.

Waugh, D.W., R.A. Plumb, J.W. Elkins, S. W. Fahey, K.A. Boering, G.S. Dutton, C. M. Volk, E. Keim, R.-S. Gao, B.C. Daube, S.C. Wofsy, M. Loewenstein, J.R. Podolske, K.R. Chan, M.H. Proffitt, K.K. Kelly, P.A. Newman, and L.R. Lait, Mixing of polar vortex air into middle latitudes as revealed by tracer-tracer scatter plots, J. Geophys. Res., 102, 13,119-13,134, 1997.

Chang, A.Y., R.J. Salawitch, H.A. Michelsen, M.R. Gunson, M.C. Abrams, R. Zander, C.P. Rinsland, J.W. Elkins, G.S. Dutton, C. M. Volk, C.R. Webster, R.D. May, D.W. Fahey, R.-S. Gao, M. Loewenstein, J.R. Podolske, R.M. Stimpfle, D.W. Kohn, M.H. Proffitt, J.J. Margitan, K.R. Chan, M.M. Abbas, A. Goldman, F.W. Irion, G.L. Manney, M.J. Newchurch, and G.P. Stiller, A comparison of measurements from ATMOS and instruments aboard the ER-2 aircraft: Halogenated Gases, Geophys. Res. Lett., 23, 2393-2396, 1996.

Elkins, J.W., D.W. Fahey, J.M. Gilligan, G.S. Dutton, T.J. Baring, C. M. Volk, R.E. Dunn, R. C. Myers, S.A. Montzka, P.R. Wamsley, A.H. Hayden, J.H. Butler, T.M. Thompson, T.H. Swanson, E.J. Dlugokinsky, P.C. Novelli, D.F. Hurst, J.M. Lobert, S.J. Ciciora, R.J. McLaughlin, T.L. Thompson, R.H. Winkler, P.J. Fraser, L.P. Steele, M.P. Lucarelli, Airborne gas chromatograph for in situ measurements of long-lived species in the upper troposphere and lower stratosphere, Geophys. Res. Lett., 23, 347-350, 1996.

Minschwaner, K., A.E. Dessler, J.W. Elkins, C. M. Volk, D.W. Fahey, M. Loewenstein, J.R. Podolske, A.E. Roche, and K.R. Chan, The bulk properties of isentropic mixing into the tropics in the lower stratosphere, J. Geophys. Res., 101, 9433-9439, 1996.

Volk, C. M., J.W. Elkins,  D.W. Fahey, R.J. Salawitch,  G.S. Dutton, J.M. Gilligan, M.H. Proffitt, M. Loewenstein, J.R. Podolske, K. Minschwaner, J.J. Margitan, and K.R. Chan, Quantifying transport between the tropical and mid-latitude lower stratosphere, Science, 272, 1763-1768, 1996.