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Videnskabelige artikler - ozonlaget

2014

 

2013

Pommereau, J.-P., F. Goutail, F. Lefevre, A. Pazmino, C. Adams, V. Dorokhov, P. Eriksen, X. Zhao (2013): Why unprecedented ozone loss in the Arctic in 2011? Is it related to climate change? Atmos. Chem. Phys., 13, 5299–5308. doi:10.5194/acp-13-5299-2013.

 

2012

Christiansen, B. and F.C. Ljungqvist: The extra-tropical NH temperature in the last two millennia: Reconstructions of low-frequency variability. Clim. Past., 8, 765-786, 2012.

Christiansen, B.:Reply to 'Comments on "Reconstructing the NH mean temperature: Can underestimation of trends and variability be avoided?" by M. Tingley, M. and B. Li'. J. Climate, 25(9), 3447-3452, 2012.

Christiansen, B and F. C. Ljungqvist: Reply to 'Reply to Comments on "Reconstruction of the extra-tropical NH mean temperature over the last millennium with a method that preserves low-frequency variability" by A Moberg'. J. Climate, 25(22), 7998-8003, 2012.

Di Biagio, C., A. di Sarra, P. Eriksen, S.E. Ascanius, G. Muscari and B. Holben: Effect of surface albedo, water vapour, and atmospheric aerosols on the cloud-free shortwave radiative budget in the Arctic. Climate Dynamics. DOI 10.1007/s00382-011-1280-1. 2012.

 

2011

Ancellet, G., E. Orlandi, E. Real, K.S. Law, H. Schlager, F. Fierli, J.K. Nielsen, V. Thouret, and C. Mari: Tropospheric ozone production related to West African city emissions during the 2006 wet seaso, AMMA campaign. Atmos. Chem. Phys., 11, 6349-6366, 2011.

Biondi, R., T. Neubert, S. Syndergaard, and J.K. Nielsen: Radio occultation bending angle anomalies during tropical cyclones. Atmos. Meas. Tech., 4, 1053–1060, doi: 10.5194/amt-41053-2011.

Christiansen,B.: Reconstructing the NH mean temperature: Can underestimation of trends and variability be avoided? J. Climate, 24(3), 674-692, 2011.

Christiansen,B. and F. C. Ljungqvist: Reconstruction of the extra-tropical NH mean temperature over the last millennium with a method that preserves low-frequency variability. J. Climate, 24(23), 6013-6034, 2011.

Hendrick, F., J.-P. Pommereau, F. Goutail, R.D. Evans, D. Ionov, A. Pazmino, E. Kyrö, G. Held, P. Eriksen, V. Dorokhov, M. Gil, and M. Van Roozendael: NDACC/SAOZ UV-visible total ozone measurements: improved retrieval and comparison with correlative ground-based and satellite observations. Atmos. Chem. Phys., 11, 5975-5995, 2011.

Baczynska, Katarzyna, John B. O'Hagan, Andy J. Pearson, P. Eriksen:Temperature correction of UV spectral solar measurements for ICEPURE project. Photochemistry and Photobiology, 87; 1464-1467, 2011.

Manney, G.L., M. Santee, M. Rex, N.J. Livesey, M.C. Pitts, P. Veefkind, E.R. Nash, I. Wohltmann, R. Lehmann, L. Froidevaux, L.R. Poole, M.R. Schoeberl, D.P. Haffner, J. Davies, V. Dorokhov, H. Gernandt, B. Johnson, R. Kivi, E. Kyrö, N. Larsen, P.F. Levelt, A. Makshtas, C.T. McElroy, H. Nakajima, M.C. Parrondo, D.W. Tarasick, P.v.d. Gathen, K.A. Walker and N.S. Zinoviev: Unprecedented Arctic ozone loss in 2011. Nature, 478, 469–475, 2011, doi:10.1038/nature10556.

Nielsen, J.K., C. Maus, D. Rzesanke, and T. Leisner: Charge induced stability of water droplets in subsaturated environment. Atmos. Chem. Phys., 11, 2031-2037, 2011.

Nielsen, J.K., M. Foster, and A. Heidinger: Tropical stratospheric cloud climatology from the PATMOS-x dataset: An assessment of convective contributions to stratospheric water. Geophys. Res. Lett., 38, L18801, doi:10.1029/2011GL049429, 2011.

Pommereau, J.-P., A. Garnier, G. Held, A. M. Gomes, F. Goutail, G. Durry, F. Borchi, A. Hauchecorne, N. Montoux, P. Cocquerez, G. Letrenne, F. Vial, A. Hertzog, B. Legras, I. Pisso, J.A. Pyle, N.R.P. Harris, R.L. Jones, A.D. Robinson, G. Hansford, L. Eden, T. Gardiner, N. Swann, B. Knudsen, N. Larsen, J.K. Nielsen, T. Christensen, F. Cairo, F. Fierli, M. Pirre, V. Marécal, N. Huret, E.D. Rivière, H. Coe, D. Grosvenor, K. Edvarsen, G. Di Donfrancesco, P. Ricaud, J.-J. Berthelier, M. Godefroy, E. Seran, K. Longo, and S. Freitas. An overview of the HIBISCUS campaign. Atmos. Chem. Phys., 11, 2309-2339, 2011.

Toxværd, S., N. Larsen, and J.C. Dyre, Molecular Dynamics simulation of crystallization in supercooled nanodroplets in the presence of a strong exothermic solute. J. Phys. Chem. C. 2011, 115, 12808–12814, dx.doi.org/10.1021/jp2026835.

Vernier, J.-P., J.-P. Pommereau, L.W. Thomason, J. Pelon, A. Garnier, T. Deshler, J. Jumelet, and J.K. Nielsen: Overshooting of clean tropospheric air in the tropical lower stratosphere as seen by the CALIPSO lidar. ACP, Vol.11, pp. 9683-9696 SRef-ID: 1680-7324/acp/2011-11-9683, 2011.

 

2010

Biondi, R., T. Neubert, S. Syndergaard, and J. Nielsen, Measurements of the upper troposphere and lower stratosphere during tropical cyclones using the GPS radio occultation technique, J. Adv. Space Res., doi:10.1016/j.asr.2010.05.031, 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.DiDonfrancesco, T.Deshler, A.Diedhiou1, G.Durry, O.Engelsen, F.Goutail, N.R.P.Harris, E.R.T.Kerstel, S.Khaykin1, P.Konopka, A.Kylling, N.Larsen, T.Lebel, X.Liu1, 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.vonHobe, 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.

Christiansen, B.: Stratospheric bimodality: Can the equatorial QBO explain the regime behavior of the NH winter vortex? J. Climate, 23(14), 3953-3966, 2010.

Daerden, F., J.A.Whiteway, R. Davy, C. Verhoeven, L. Komguem, C. Dickinson, P.A. Taylor, and N. Larsen, Simulating observed boundary layer clouds on Mars, Geophys. Res. Lett., 37, L04203, doi:10.1029/2009GL041523, 2010.

Di Biagio, Claudia, Giovanni Muscari, Alcide di Sarra, Robert L. de Zafra, Paul Eriksen, Giorgio Fiocco, Irene Fiorucci, and Daniele Fuà: Evolution of temperature, O3, CO, and N2 profiles during the exceptional 2009 Arctic major stratospheric warming as observed by lidar and millimeter-wave spectroscopy at Thule (76.5°N, 68.8°W), Greenland. Journal of Geophysical Research, Vol. 115, D24315, doi:10.1029/2010JD014070, 2010.

Reeves, C. E., Formenti, P., Afif, C., Ancellet, G., Attié, J.-L., Bechara, J., Borbon, A., Cairo, F., Coe, H., Crumeyrolle, S., Fierli, F., Flamant, C., Gomes, L., Hamburger, T., Jambert, C., Law, K. S., Mari, C., Jones, R. L., Matsuki, A., Mead, M. I., Methven, J., Mills, G. P., Minikin, A., Murphy, J. G., Nielsen, J. K., Oram, D. E., Parker, D. J., Richter, A., Schlager, H., Schwarzenboeck, A., and Thouret, V.: Chemical and aerosol characterisation of the troposphere over West Africa during the monsoon period as part of AMMA, Atmos. Chem. Phys., 10, 7575-7601, doi:10.5194/acp-10-7575-2010, 2010.

Wulf, Hans Christian & Paul Eriksen: UV-indeks og dets betydning, Ugeskrift for læger, 172(17), 1277-1279, 2010.

 

2009

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 overview of the SCOUT-AMMA stratospheric aircraft, balloons and sondes campaign in West Africa, August 2006: rationale, roadmap and highlights, Atmos. Chem. Phys. Discuss., 9, 19713-19781, 2009.

Dupuy, E., K. Walker, J. Kar, and ACE Ozone Validation Team (Tina Christensen): Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE) Special Issue: Validation results for the Atmospheric Chemistry Experiment (ACE). Atmos. Chem. Phys., 9, 287-343, 2009.

Khaykin, S., J.-P. Pommereau, L. Korshunov, V. Yushkov, J. Nielsen, N. Larsen, T. Christensen, A. Garnier, A. Lukyanov, and E. Williams: Hydration of the lower stratosphere by ice crystal geysers over land convective systems. Atmos. Chem. Phys., Vol. 9, pp. 2275-2287, 2009.

Vernier, J. P., J. P. Pommereau, A. Garnier, J. Pelon, N. Larsen, J. Nielsen, T. Christensen, L. W. Thomasson, T. Leblanc, and I. S. McDermid, Tropical stratospheric aerosol layer from CALIPSO lidar observations, J. Geophys. Res., 114, D00H10, doi:10.1029/
2009JD011946, 2009.

Wiegell SR, Haedersdal M, Eriksen P, Wulf HC: Photodynamic therapy of actinic keratoses with 8% and 16% methyl aminolaevulinate and home-based daylight exposure: a double-blinded randomized clinical trial. Br J Dermatol. 2009 Jun;160(6):1308-14.

 

2008

Wiegell SR, Haedersdal M, Philipsen PA, Eriksen P, Enk CD, Wulf HC.: Continuous activation of PpIX by daylight is as effective as and less painful than conventional photodynamic therapy for actinic keratoses; a randomized, controlled, single-blinded study. Br J Dermatol. 2008 Apr;158(4):740-6.

 

2007

Christensen, T., B. Knudsen, J.-P. Pommereau, G. Letrenne, A. Hertzog, F. Vial, J. Ovarlez, and M. Piot: Evaluation of ECMWF ERA-40 temperature and wind in the lower tropical stratosphere since 1988 from past long-duration balloon measurements. Atmospheric Chemistry and Physics, 7, 3399-3409, 2007.

Daerden, F., N. Larsen, S. Chabrillat, Q. Errera, S. Bonjean, D. Fonteyn, K. Hoppel, and M. Fromm: A 3D-CTM with detailed online PSC-microphysics: analysis of the Antarctic winter 2003 by comparison with satellite observations. Atmospheric Chemistry and Physics, Vol. 7, 1755-1772, 2007.

Kivi, R., E. Kyrö, T. Turunen, N.R.P. Harris, P. Von der Gathen, M. Rex and S.B. Andersen: Ozonesonde observations in the Arctic during 1989-2003: ozone variability and trends in lower stratosphere and free troposphere, accepted, J. Geophys. Res. 2007.

Nielsen, J.K., N. Larsen, F. Cairo, G. Di Donfrancesco, J. M. Rosen, G. Durry, G. Held, and J. P. Pommereau: Solid particles in the tropical lowest stratosphere. Atmospheric Chemistry and Physics, 7, 685-695, 2007.

 

2006

Andersen, S.B. and B.M. Knudsen: The influence of polar vortex ozone depletion on NH mid-latitude ozone trends in spring. Atmos. Chem. Phys., 6, 2837-2845, 2006.

Andersen, S.B.; Weatherhead, E.C.; Stevermer, A.; Austin, J.; Brühl, C.; Fleming, E.L.; de Grandpré, J.; Grewe, V.; Isaksen, I.; Pitari, G.; Portmann, R.W.; Rognerud, B.; Rosenfield, J.E.; Smyshlyaev, S.; Nagashima, T.; Velders, G.J.M.; Weisenstein, D.K.; Xia, J.: Comparison of recent modeled and observed trends in total column ozone. J. Geophys. Res., Vol. 111, No. D2, D02303, 10.1029/2005JD006091, 2006.

Höpfner, M., N. Larsen, R. Spang, B.P. Luo, J. Ma, S.H. Svendsen, S.D. Eckermann, B. Knudsen, P. Massoli, F. Cairo, G. Stiller, T.v. Clarmann, and H. Fischer: MIPAS detects Antarctic stratospheric belt of NAT PSCs caused by mountain waves. Atmospheric Chemistry and Physics , 6, 1221-1230, 2006.

Knudsen, B.M., U, A. Hertzog, A. Deme, F. Vial, J.-P. Pommereau, Accuracy of analyzed temperatures, winds and trajectories in the Southern Hemisphere tropical and midlatitude stratosphere as compared to long-duration balloon flights, Atm. Chem. Phys., Vol. 6, 5391-5397, 2006.

Rex, M., R. Salawitch, H. Deckelmann, P. von der Gathen, N. Harris, M. Chipperfield, B. Naujokat, E. Reimer, M. Allaart, S.B. Andersen, R. Bevilacqua, G. Braathen, H. Claude, J. Davies, H. De Backer, H. Dier, V. Dorokov, H. Fast, M. Gerding, K. Hoppel, B. Johnson, E. Kyrö, Z. Litynska, D. Moore, T. Nagai, C. Parrondo, D. Risley, P. Skrivankova, R. Stübi, C. Trepte, P. Viatte, V. Yushkov and C. Zerefos: Arctic winter 2005: Implications for stratospheric ozone loss and climate change. Geophys. Res Lett., Vol. 33, L23808, doi:10.1029/2006GL026731, 2006.

Rivière, Emmanuel D., Virginie Marécal, Niels Larsen, and Sylvie Cautenet: Modelling study of the impact of deep convection on the UTLS air composition. Part 2: Ozone budget in the TTL. Atmospheric Chemistry and Physics, 6, 1585-1598, 2006.

Streibel, M., M. Rex, P. von der Gathen, N.R.P. Harris, G.O. Braathen, E. Reimer, H. Deckelmann, M. Chipperfield, G. Millard, M. Allaart, S.B. Andersen, H. Claude, J. Davies, H. De Backer, H. Dier, V. Dorokov, H. Fast, M. Gerding, E. Kyrö, Z. Litynska, D. Moore, E. Moran, T. Nagai, H. Nakane, C. Parrondo, P. Skrivankova, R. Stübi, G. Vaughan, P. Viatte, V. Yushkov: Chemical ozone loss in the Arctic winter 2002/03 determined with Matc. Atmos. Chem. Phys., 6, 2783-2792, 2006.

Sugita, T., H. Nakajima, T. Yokota, H. Kanzawa, H. Gernandt, A. Herber, P. von der Gathen, G. König-Langlo, K. Sato, V. Dorokhov, V. A. Yushkov, Y. Murayama, M. Yamamori, S. Godin-Beekmann, F. Goutail, H.K. Roscoe, T. Deshler, M. Yela, P. Taalas, E. Kyrö, S. Oltmans, B. Johnson, M. Allaart, Z. Litynska, A. Klekociuk, S.B. Andersen, G.O. Braathen, H. De Backer,C. E. Randall, R.M. Bevilacqua, G. Taha, L.W. Thomason, H. Irie, M.K. Ejiri, N. Saitoh, T. Tanaka, Y. Terao, H. Kobayashi, and Y. Sasan: Ozone profiles in high-latitude stratosphere and lower mesosphere measured by the Improved Limb Atmospheric Spectrometer (ILAS)-II: Comparison with other satellite sensors and ozonesondes. J. Geophys. Res. 111, D11S02, doi:10.1029/2005JD006439, 2006.

Weatherhead, E.C. and S.B. Andersen: The Search for Signs of Recovery of the Ozone Layer. Nature, 441, 39-45, doi:10.1038/nature04746, 2006.

Weisser, C., K. Mauersberger, J. Schreiner, N. Larsen, F. Cairo, J. Ovarlez, and T. Deshler: Composition analysis of liquid particles in the Arctic stratosphere under synoptic conditions. Atmos. Chem. Phys.6, 689-696, 2006.

 

2005

Christensen, T., B.M. Knudsen, M. Streibel, S.B. Andersen, A. Benesova, G. Braathen, H. Claude, J. Davies, H. De Backer, H. Dier, V. Dorokhov, M. Gerding, M. Gil, B. Henchoz, H. Kelder, R. Kivi, E. Kyrö, Z. Litynska, D. Moore, G. Peters, P. Skrivankova, R. Stübi, T. Turunen, G. Vaughan, P. Viatte, A. F. Vik, P. von der Gathen, I. Zaitcev: Vortex-averaged Arctic ozone depletion in the winter 2002/2003. Atmospheric Chemistry and Physics, 5, 131-138, 2005.

Goutail, F., J.-P. Pommereau, F. Lefèvre, M. Van Roozendael, S.B. Andersen, B.-A. Kåstad Høiskar, V. Dorokhov, E. Kyro, M. Chipperfield and W. Feng: Early unusual ozone loss during the Arctic winter 2002/03 compared to other winters. Atmos. Chem. Phys., 5, 665-677, 2005.

Karpetchko, A., E. Kyro, B. Knudsen, Arctic and Antarctic polar vortices 1957-2002 as seen from the ERA-40 reanalyses, J. Geophys. Res., 110, D21109, doi:10.1029/2005JD006113, 2005.

Knudsen, B.M., Jønch-Sørensen, H., Eriksen, P., Johnsen, B.J., and Bodeker, G.E.: UV radiation below an Arctic vortex with severe ozone depletion. Atmos. Chem. Phys., 5, 2981-2987, 2005.

Scarchilli, C., A. Adriani, F. Cairo, G. Di Donfrancesco, C. Buontempo, M. Snels, M. Luisa Moriconi, T. Deshler, N. Larsen, B. Luo, K. Mauersberger, J. Ovarlez, J. Rosen and J. Schreiner: Determination of PSC Particle Refractive Indexes using In Situ Optical Measurements and T-Matrix Calculations, App. Optics, 44, 3302-3311, 2005.

Svendsen, S.H., N. Larsen, B. Knudsen, S.D. Eckermann , and E.V. Browell, 2004: Influence of mountain waves and NAT nucleation mechanisms on Polar Stratospheric Cloud formation at local and synoptic scales during the 1999-2000 Arctic winter. Atmospheric Chemistry and Physics, Atmos. Chem. Phys., 5, 739-753, 2005.

 

2004

Knudsen, B.M., N.R.P. Harris, S.B. Andersen, B. Christiansen, N. Larsen, M. Rex, B. Naujokat: Extrapolating future Arctic ozone losses. Atmos. Chem. Phys. 4, 1849-1856, 2004.

Lait, L.R., P.A. Newman, M.R. Schoeberl, T. McGee, L. Twigg, E. Browel, R. Bevilacqua, S.B. Andersen, H. DeBacker, A. Benesova, P. Skrivankova, J. Davies, H. Claude, E. Kyro, R. Kivi, M. Gil, M. Gerding, L. Zenobia, D. Moore, G. Braathen, V. Dorokhov, and I. Zaitcev:Non-coincident Inter-instrument Comparisons of Ozone Measurements Using Quasi-conservative Coordinates. Atmos. Chem. Phys, 4, 2345-2352, 2004.

Larsen, N., B.M. Knudsen, S.H. Svendsen, T. Deshler, J.M. Rosen, R. Kivi, C. Weisser, J. Schreiner, K. Mauersberger, F. Cairo, J. Overlez, H. Oelhaf, and R. Spang: formation of solid particles in synoptic-scale Arctic PSCs in early winter 2002/2003. Atmos. Chem. Phys., 4, 1-13, 2004.

Meijer, Y., M. Allaart, S. Andersen, G. Bodeker, G. Braathen, Y. Calisesi, H. Claude, V. Dorokhov, P. von der Gathen, M. Gil, S. Godin-Beekmann, F. Goutail, G. Hansen, A. Karpetchko, P. Keckhut, H. Kelder, R. Koelemeijer, B. Kois, R. Koopman, J.-C. Lambert, T. Leblanc, S. Pal, A. Parrish, U. Raffalski, H. Schets, R. Stubi, T. Suortti, D. Swart, G. Visconti, and M. Yela: Pole-to-pole validation of GOMOS ozone profiles using data from ground-based and balloon-sonde measurements. J. Geophys. Res.,109, D23305. doi:10.1029/2004JD004834, 2004.

Weatherhead, Betsy, Aapo Tanskanen, John Austin, Signe Bech Andersen, Gerrmar Bernhard, Howard Browman, Valery Dorokhov, Vitali Fioletov, Jay Herman, Weine Josefsson, Jussi Kaurola, Arve Kylling, Esko Kyro, Drew Shindell, and Amy Stevermer, 2004: Atmospheric Ozone and UV Radiation, in: ACIA Chapter 3, Arctic Council and IASC, Alaska Fairbanks, in press, 2004

2003

Brogniez, C., N. Huret, S. Eckermann, E.D. Rivière, M. Pirre, M. Herman, J.-Y. Balois, C. Verwaerde, N. Larsen, B. Knudsen, 2003: PSC microphysical properties measured by microRADIBAL instrument on January 25, 2000 above Esrange and modeling interpretation. J. Geophysical Research, 108, D6, 8332, doi: 10.1029/2001JF001017.

Deshler, T., N. Larsen, C. Weisser, J. Schreiner, K. Mauersberger, F. Cairo, A. Adriani, G. Di Donfrancesco, J. Ovarlez, H. Ovarlez, U. Blum, K.H. Fricke, and A. Dörnbrack, 2003: Large nitric acid particles at the top of an Arctic startospheric cloud. Journal of Geophysical Research, 108, 10.1029/-2003JD0003479.

Jørgensen, T.S., 2003: On particles in the arctic stratosphere. Annals of Geophysics, 46, p. 341.

Knudsen, B.M., 2003: On the accuracy of analysed low tempera-tures in the stratosphere. Atm. Chem. Phys.,3, 1759-1768.

Newman, P.A., J.A. Pyle, J. Austin, G.O. Braathen, G.O. Canziani, K. S. Carslaw, P.M. de F. Forster, S. Godin-Beekmann, B.M. Knudsen, K. Kreher, H. Nakane, S. Pawson, V. Ramaswamy, M. Rex, R.J. Salawitch, D.T. Shindell, A. Tabazadeh, and D.W. Toohey, 2003: Chapter 3, in: Scientific Assessment of Ozone Depletion: 2002, Global Ozone Research and Monitoring Project - Report No. 47, 498 pp., Geneva, 2003.

Rivière, E.D., M. Pirre, G. Berthet, J.-B. Renard, F.G. Taupin, N. Huret, M. Chartier, B. Knudsen, and F. Lefevre, 2003: On the interaction between nitrogen and halogen species in the Arctic polar vortex during THESEO and THESEO 2000. J. Geophys. Res., 108, D5, doi: 10.1029/2002JD002087.

Schreiner, J., C. Voigt, A. Kohlmann, K. Mauersberger, T. Deshler, C. Kroger, N. Larsen, A. Adriani, F. Cairo, G. Di Donfrancesco, J. Ovarlez, H. Ovarlez, A Dörnbrack, J.M. Rosen, and N.T. Kjome, 2003: Chemical, microphysical, and optical properties of polar strato-spheric clouds. J. Geophys. Res., 108, D5, 8313, doi: 10.1029/2001JD000825.

Voigt, Christiane, Niels Larsen, Terry Deshler, Chris Kröger, Jochen Schreiner, Konrad Mauersberger, Beiping Luo, Alberto Adriani, Francesco Cairo, Guido Di Donfrancesco, Joelle Ovarlez, Henri Ovarlez, Andreas Dörnbrack, Bjørn Knudsen, Jim Rosen, 2003: In situ mountain-wave polar stratospheric cloud measurements: Implications for nitric acid trihydrate formation. J. Geophys. Res., 108, (D5) 10.1029/2001JD001185, 2003.

 

2002

Andersen, S.B., and B.M. Knudsen, The influence of polar vortex ozone depletion on Arctic ozone trends, Geophys. Res. Lett., 29, (21), 2013, 10.1029/2001GL014595, 2002.

di Sarra, A., M. Cacciani, G. Fiocco, D. Fua and T.S. Jørgensen, Lidar Observations of Polar Strato-spheric Clouds over Northern Greenland in the Period 1990-1997. J. Geophys. Res., 107, (D12), 10.1029/2001JD001074, 2002.

Harris, N.R.P., M. Rex, F. Goutail, B.M. Knudsen, G.L. Manney, R. Müller, and P. von der Gathen. Comparison of Empirically Derived Ozone Losses in the Arctic Vortex, J. Geophys. Res., 107, (D20), 10.1029/2001JD00482, 2002.

Hertzog, A., F. Vial, A. Dörnbrack, S.D. Eckermann, B.M. Knudsen, and J.-P. Pommereau, In-situ observations of gravity waves and comparison with numerical simulations during SOLVE/THESEO 2000 campaign, J. Geophys. Res, 107, (D20), 8292, 10.1029/2001JD001025, 2002.

Knudsen, B.M., J.-P. Pommereau, A. Garnier, M. Nunes-Pinharanda, L. Denis, P. Newman, G. Letrenne, and M. Durand. Accuracy of Analyzed Stratospheric Temperatures in the Winter Arctic Vortex from Infra Red Montgolfier Long Duration Balloon Flights. Part II: Results. J. Geophys. Res., 107, (D20), 10.1029/2001JD001329, 2002.

Lait, L. R., M. R. Schoeberl, P. A. Newman, T. McGee, J. Burris, E. V. Browell, E. Richard, G. O. Braathen, B. R. Bojkov, F. Goutail, P. von der Gathen, E. Kyrö, G. Vaughan, H. Kelder, S. Kirkwood, P. Woods, V. Dorokhov, I. Zaitcev, Z. Litynska, A.Benesova, P. Skrivankova, H. De Backer, J. Davies, T. Jorgensen, and I.S. Mikkelsen, Ozone loss from quasi-conservative coordinate map-ping, during the 1999-2000 Solve campaign, J. Geophys. Res., 107, (D20), 10.1029/2001JD000998, 2002.

Larsen, N., B.M. Knudsen, M. Gauss, and G. Pitari, Aircraft induced effects on Arctic Polar Strato-spheric Cloud Formation, Meteorol. Z., 11, 207-214, 2002.

Larsen, N., S. Høyer Svendsen, B.M. Knudsen, C. Voigt, A. Kohlmann, J. Schreiner, K. Mauersberger, T. Deshler, C. Kröger, J. M. Rosen, N. T. Kjome, A. Adriani, F. Cairo, G. Di Donfrancesco, J. Ovarlez, H. Ovarlez, A. Dörnbrack and T. Birner, Microphysical mesoscale simulations of polar stratospheric cloud formation constrained by in-situ measurements of chemical and optical cloud properties, J. Geophys. Res., 10.1029/2001JD000999, 2002.

Newman, P.A., N.R.P. Harris, A. Adriani, G.T. Amanatidis, J.G. Anderson, G.O. Braathen, W.H. Brune, K.S. Carslaw, M.S. Craig, P.L. DeCola, M. Guirlet, R.S. Hipskind, M.J. Kurylo, H. Küllmann, N. Larsen, G.J. Megie, J-P. Pommereau, L.R Poole, M.R. Schoeberl, F. Stroh, O.B. Toon, C.R. Trepte, and M.V. Roozendael, An overview of the SOLVE/THESEO 2000 campaign, J. Geophys. Res. 107, (D20), 8259, doi:10.1029/2001JD001301, 2002.

Pommereau, J.-P., A. Garnier, B.M. Knudsen, G. Letrenne, M. Durand, M. Nunes-Pinharanda, L. Denis, F. Vial, A. Hertzog, and F. Cairo. Accuracy of Analyzed Stratospheric Temperatures in the Winter Arctic Vortex from Infra Red Montgolfier Long Duration Balloon Flights. Part I: Measure-ments. J. Geophys. Res., 107, (D20), 10.1029/2001JD001379, 2002.

Rex, M., R.J. Salawitch, N. R. P. Harris, P. von der Gathen, G.O. Braathen, A. Schulz, H. Deckelman, M. Chipperfield, B.M. Sinnhuber, E. Reimer, R. Alfier, R. Bevilacqua, K. Hoppel, M. Fromm, J. Lumpe, H. Küllmann, A. Kleinböhl, H. Bremer, M. von König, K. Künzi, D. Toohey, H. Vömel, E. Richard, K. Aikin, H. Jost, J.B. Greenblatt, M. Loewenstein, J.R. Podolske, C.R. Webster, G.J. Flesch, D.C. Scott, R.L. Herman, J.W. Elkins, E.A. Ray, F.L. Moore, D.F. Hurst, P. Romashkin, G.C. Toon, B. Sen, J.J. Margitan, P. Wennberg, R. Neuber, M. Allart, M. Alpers, B.R. Bojkov, J. Cisneros, H. Claude, J. Davies, W. Davies, H. De Backer, H. Dier, V. Dorokhov, H. Fast, S. Godin, B. Johnson, Y. Kondo, E. Kyrö, Z. Litynska, I.S. Mikkelsen, M.J. Molyneux, E. Moran, G. Murphy, T. Nagai, H. Na-kane, C. Parrondo, F. Ravegnani, F.J. Schmidlin, P. Skrivankova, C. Varotsos, C. Vialle, P. Viatte, V. Yushkov, and C. Zerefos, Chemical depletion of arctic ozone in winter 1999/2000, J. Geophys. Res., 107, 8276, 10.1029/2001JD000533, 2002.

Schiller, C., R. Bauer, J. Beuermann, F. Cairo, T. Deshler, A. Dörnbrack, J. Elkins, A. Engel, H. Flentje, N. Larsen, I. Levin, M. Müller, S. Oltmans, H. Ovarlez, J. Ovarlez, C. Poss, F. Stroh, H. Vömel, T. Wetter, Dehydration in the Arctic stratosphere during the SOLVE/THESEO-2000 cam-paigns, J. Geophysical Research, 107, (D20), 1029/2001JD000463, 2002.

Schoeberl, M.R., P.A. Newman, L.R. Lait, T. J. McGee, J.F. Burris, E.V. Browell, W.B. Grant, E.C. Richard, P. von der Gathen, R. Bevilacqua, I.S. Mikkelsen, and M.J. Molyneux, An assessment of the ozone loss during the 1999-2000 SOLVE/THESEO 2000 arctic campaign, J. Geophys. Res., 107, (D20), 8261, 10.1029/2001JD000412, 2002.

 

2001

Bais, A. F., B. G. Gardiner, H. Slaper, M. Blumthaler, G. Bernhard, R. McKenzie, A. R. Webb, G. Seckmeyer, B. Kjeldstad, T. Koskela, P. Kirsch, J. Gröbner, J. B. Kerr, S. Kazadzis, K. Leszczynski, D. Wardle, C. Brogniez, W. Josefsson, D. Gillotay, H. Reinen, P. Weihs, T. Svenoe, P. Eriksen, F. Kuik, A. Redondas, The SUSPEN intercomparison of ultraviolet spectroradiometers, J. Geophys. Res., 106, D12, 12509-12525, 2001.

Carslaw, K.S., H. Oelhaf, J.-N. Crowley, F. Goutail, B. Knudsen, N. Larsen, G. Redaelli, M. Rex, H. Roscoe, R. Ruhnke, and M. Volk. Polar Ozone, cp. 3, in European research in the stratosphere 1996-2000 - Advances in our understanding of the ozone layer during THESEO, European Commission, EUR 19867, 378pp., 2001

Fieli, F., A. Hauchecorne, B. Knudsen, Analysis of polar stratospheric clouds formation using temperature and aerosol measured by Alomar RMR lidar, J. Geophys. Res., 106, 24.127-24.142, 2001.

Knudsen, B.M., and S.B. Andersen. Longitudinal variation in springtime  ozone trends, Nature, 413, 699-700, 2001.

Knudsen, B.M., J.-P. Pommereau, A. Garnier, M. Nunez- Pinharanda, L. Denis, G. Letrenne, M. Durand and J. M. Rosen. Comparison of stratopheric air parcel trajectories based on different meteorological analyses. J. Geophys. Res., Vol. 106, p.p. 3415-3424, 2001.

Lambert, J.-C., M. Van Roozendael, P.C. Simon, J.-P. Pommereau, F. Goutail, S.B. Andersen, D.W. Arlander, N.A. Bui Van, H. Claude, J. de LaNoë, M. De Maziere, V. Dorokhov, P. Eriksen, J.F. Gleason, K. Karlsen Tørnkvist, B.A. Kåstad Høiskar, E. Kyrö, J. Leveau, M.F. Merienne, G. Milinevsky, H.K. Roscoe, A. Sarkissian, J.D. Shanklin, J. Staehelin, C.W. Tellefsen and G. Vaughan. Combined characterisation of GOME and TOMS total ozone using ground-based observations from the NDSC. Adv. Space Res., 26, 1931-1949, 2000.

Schulz, A., M. Rex, N. R. P. Harris, G. O. Braathen, E. Reimer, R. Alfier, I. Kilbane-Dawe, S. Eckermann, M. Allaart, M. Alpers, B. Bojkov, J. Cisneros, H. Claude, E. Cuevas, J. Davies, H. De Backer, H. Dier, V. Dorokhov, H. Fast, S. Godin, B. Johnson, B. Kois, Y. Kondo, E. Kosmidis, E. Kyrö, Z. Litynska, I. S. Mikkelsen, M. J. Molyneux, G. Murphy, Y. Nagai, H. Nakane, F. O'Connor, C. Parrondo, F.J. Schmidlin, P. Skrivankova, C. Varotsos, C. Vialle, P. Viatte, V. Yushkov, C. Zerefos, P. von der Gathen, Arctic ozone loss in threshold conditions: Match observations in 1997/98 and 1998/99, J. Geophys. Res., 106, D7, 7495-7503, 2001.

Suortti, T., E. Kyrö, J. Karhu, J. Rosen, R. Neuber, N. Larsen, V. Khattatov, V. Yushkov, V. Rudakov, H. Nakane. Evolution of Arctic Stratospheric Aerosol Mixing Ratio Measured With Balloon Borne Aerosol Backscattersondes for Years 1988-2000, Journal of Geophysical Research, 106, 20759-20766, 2001.

 

2000

Jørgensen, T.S., and A.W. Hansen, Comment on “Variation of cosmic ray flux and global cloud coverage - a missing link in solar - climate relationships” by Henrik Svensmark and Eigil Friis-Christensen, J. Atmos. Solar-Terrest. Phys., 62, 73-77, 2000.

Knudsen, B. M. and J.-U. Grooss, Northern mid-latitude stratospheric ozone dilution in spring modeled with simulated mixing, Journal of Geophysical Research, 105, 6885-6890, 2000.

Larsen, N., I.S. Mikkelsen, B.M. Knudsen, J. Schreiner, C. Voigt, K. Mauersberger, J.M. Rosen, and N.T. Kjome, Comparison of chemical and optical in situ measurements of polar stratospheric cloud particles, Journal of Geophysical Research, 105, 1491-1502, 2000.

Rivière, E., N. Huret, F.G. Taupin, J.B. Renard, M. Pirre, S. Eckermann, N. Larsen, T. Deshler, F. Lefèvre, S. Payan og C. Camy-Peyret, Role of leewave in the formation of solid PSCs: case studies from February 1997, J. Geophys. Res., 105, 6845-6853, 2000.

Voigt, C., J. Schreiner, A. Kohlmann, P. Zink, K. Mauersberger, N. Larsen, T. Deshler, C. Kröger, J. Rosen, A. Adriani, F. Cairo, G. Di Donfrancesco, M. Viterbini, J. Ovarlez, H. Ovarlez, C. David, and A. Dörnbrack. Nitric Acid Trihydrate (NAT) in Polar Stratospheric Clouds, Science, 290, pp. 1756-1758, 2000.

Voigt, C., A. Tsias, A. Dörnbrack, S. Meilinger, B. Luo, J. Schreiner, N. Larsen, K. Mauersberger, and T. Peter, Non-equilibrium compositions of liquid polar stratospheric clouds in gravity waves, Geophys. Res. Lett., 27, pp. 3873-3876, 2000.

 

1999

Andersen, S. B., Spring ozone column values over Thule, Greenland in the period 1991-1998, Geophys. Res. Lett., 26, 193-196, 1999.

Godin, S., L. Poole, S. Bekki, T. Deshler, N. Larsen og T. Peter, Global distributions and changes in stratospheric particles, Chapter 3 in the 1998 UNEP/WMO Scientific Assessment of the Ozone Layer, WMO/UNEP Geneva, 1999.

Goutail, F., J.-P. Pommereau, C. Phillips, C. Deniel, A. Sarkissian, F. Lefévre, E. Kyrö, M. Rammukainen, P. Eriksen, S. B. Andersen, B.-A. Kaastad-Hoiskar, G. Braathen, V. Dorokhov and V. U. Khatatov, Depletion of Column Ozone in the Arctic during the Winters of 1993-94 and 1994-95, J. Atmos. Chem., 32, 1-34, 1999.

Rex, M., P. von der Gathen, G. O. Braathen, N.R. P. Harris, E. Reimer, A. Beck, R. Alfier, R. Krüger-Carstensen, M. Chipperfield, H. de Backer, D. Balis, F. O'Connor, H. Dier, V. Dorokhov, H. Fast, A. Gamma, M. Gil, E. Kyrö, Z. Litynynska, I. S. Mikkelsen, M. Molyneux, G. Murphy, S. J. Reid, M. Rummukainen and C. Zerefos, Chemical ozone loss in the arctic winter 1994/95 as determined by the match technique, J. Atmos. Chem., 32, 35-59, 1999.

Schreiner, J., C. Voigt, A. Kohlmann, F. Arnold, K. Mauersberger and N. Larsen, Chemical analysis of polar stratospheric cloud particles, Science, 283, 968-970, 1999.

 

1998

Knudsen, B. M., N. Larsen, I. S. Mikkelsen, J.-J. Morcrette, G. O. Braathen, E. Kyrö, H. Fast, H. Gernandt, H. Kanzawa, H. Nakane, V. Dorokhov, V. Yushkov, G. Hansen, M. Gil, og R. J. Shearman, Ozone depletion in and below the arctic vortex for 1997, Geophys. Res. Lett., 25, 627-630, 1998.

Knudsen, B. M., Lahoz, W. A., O'Neill A., Morcrette, J-J., Evidence for a substantial role for dilution in northern mid-latitude ozone depletion, Geophys. Res. Lett., 25, 4501-4504, 1998.

Koepke, P. A. Bais, D. Balis, M. Buchwitz, H. De Backer, X. de Cabo, P. Eckert, P. Eriksen, D. Gillotay, A. Heikkila, T. Koskela, B. Lapeta, Z. Litynska, J. Lorente, B. Mayer, A. Renaud, A. Ruggaber, G. Schauberger. G. Seckmeyer, P. Seifert, A. Schmalwieser, H. Schwander, K. Vanicek and M. Weber, Comparison of models used for UV index calculations, Photochemistry and Photobiology, 67(6), 657-662, 1998.

Rex, M., P. von der Gathen, N. R. P. Harris, D. Lucic, B.M. Knudsen, G. O. Braathen, S.J. Reid, H. De backer, H. Claude, R. Fabian, H. Fast, M. Gil, E. Kyrö, I. S. Mikkelsen, M. Rummukainen, H. G. Smit, J. Stähelin, C. Varotsos, og I. Zaitzev, In situ measurements of stratospheric ozone depletion rates in the Arctic winter 1991/1992: A Lagrangian approach, J. Geophys. Res., 103, 5843-5853, 1998.

 

1997

Fiocco, G., N. Larsen, S. Bekki, C. Davis, A.R. MacKenzie, T. Peter, A. di Sarra og S. Spreng, Particles in the stratosphere, cp3, in European Research in the Stratosphere: The contribution of EASOE and SESAME to our current understanding of the ozone layer, European Commision, 1997.

Larsen, N., B. M. Knudsen, J. M. Rosen, N. T. Kjome, R. Neuber, og E. Kyrö, Temperature histories in liquid and solid PSC formation, J. Geophys. Res., 102, 23,505-23,517, 1997.

Lutman, E. R., J. A. Pyle, M. P. Chipperfield, D. J. Lary, I. Kilbane-Dawe, J. W. Waters, and N. Larsen, Three-dimensional studies of the 1991/92 northern hemisphere winter using domain-filling trajectories with chemistry, J. Geophys. Res., 102, 1479-1488, 1997.

Rasmussen, A., S. Kiilsholm, J.H. Sørensen, and I.S. Mikkelsen, Analysis of tropospheric ozone measurements in Greenland, Tellus, 49B, 510-521, 1997.

Rex, M., N. R. P. Harris, P. von der Gathen, R. Lehmann, G. O. Braathen, E. Reimer, A. Beck, M. P. Chipperfield, R. Alfier, M. Allaart, F. O'Connor, H. Dier, V. Dorokhov, H. Fast, M. Gil, E. Kyrö, Z. Litynska, I. S. Mikkelsen, M. G. Molyneux, H. Nakane, J. Notholt, M. Rummukainen, P. Viatte, and J. Wenger, Prolonged stratospheric ozone loss in the 1995-96 Arctic winter, Nature, 389, 835-838, 1997.

Rosen, J.M., N.T. Kjome, N. Larsen, B.M. Knudsen, E. Kyrö, R. Kivi, J. Karhu, R. Neuber, and I. Beninga, Polar stratospheric threshold temperatures in the 1995-1996 arctic vortex, J. Geophys. Res., 102, 28195-28202, 1997.

Thayer, J.P., Nielsen, R.B., Warren, R., Heinselman, C.J., Sohn, J.: Rayleigh Lidar system for middle atmosphere research in the arctic. Opt. Eng., 36, 2045-2061, 1997.

Vaughan, G., H. K. Roscoe, L. M. Bartlett, F. M. O'Connor, A. Sarkissian, M. Van Roozendael, J.-C. Lambert, P. C. Simon, K. Karlsen, B. A. Kåstad Høiskar, D. J. Fish, R. L. Jones, R. Freshwater, J.-P. Pommereau, F. Goutail, S. B. Andersen, D. G. Drew, P. A. Hughes, D. Moore, J. Mellqvist, E. Hegels, T. Klüpfel, F. Erle, K. Pfeilsticker, U. Platt, An intercomparison of ground-based UV-visible sensors of Ozone and NO2, J. Geophys. Res., 102, 1411-1422, 1997.

 

1996

de Rudder, A., N. Larsen, X. Tie, G. P. Brasseur, and C. Granier, Model study of polar stratospheric clouds and their effect on stratospheric ozone, 1, Model description, J. Geophys. Res., 101. 12,567- 12,574, 1996.

Fonteyn, D., and N. Larsen, Detailed PSC formation in a two-dimensional chemical transport model of the stratosphere, Ann. Geophysicae, 14, 315-328, 1996.

Knudsen, B.M., J.M. Rosen, N.T. Kjome, and A. T. Whitten, Comparison of analyzed stratospheric temperatures and calculated trajectories with long-duration balloon data, J. Geophys. Res., 101, 19,137-19,145, 1996.

Knudsen, B.M., Accuracy of arctic temperature analyses and the implications for the prediction of polar stratospheric clouds, Geophys. Res. Lett., 23, 3747-3750, 1996.

Larsen, N., B. Knudsen, J.M. Rosen, N.T. Kjome, and E. Kyrö, Balloonborne backscatter observa-tions of type 1 PSC formation: Inference about physical state from trajectory analysis, Geophys. Res. Lett., 23, 1091-1094, 1996.

Tie, X., G.P. Brasseur, C. Granier, A. de Rudder, and N. Larsen, Model study of polar stratospheric clouds and their effect on stratospheric ozone, 2, Model results, J. Geophys. Res., 101, 12,575-12,584, 1996.

 

1995

von der Gathen, P., M. Rex, N.R.P. Harris, D. Lucic, B.M. Knudsen, G.O. Braathen, H. De Backer, R. Fabian, H. Fast, M. Gil, E. Kyrö, I.S. Mikkelsen, M. Rummukainen, J. Stähelin, and C. Varotsos, Observational evidence for chemical ozone depletion over the Arctic in winter 1991-92, Nature, 375, 131-134, 1995.

Larsen, N., J.M. Rosen, N.T. Kjome, and B. Knudsen, Deliquescence and freezing of stratospheric aerosol observed by balloonborne backscattersondes, Geophys. Res. Lett., 22, 1233-1236, 1995.

Larsen, M.F., T.R. Marshall, I.S. Mikkelsen, B.A. Emery, A. Christensen, D. Kayser, J. Hecht, L. Lyons, and R. Walterscheid, Atmospheric response in Aurora experiment: Observations of E and F region neutral winds in a region of postmidnight diffuse aurora, J. Geophys. Res., F, 17, 299, 1995.

di Sarra, A., M. Cacciani, G. Fiocco, D. Fuà, T.S. Jørgensen, B. Knudsen, N. Larsen, and I.S. Mikkelsen, Ozone and aerosol correlated observations at Thule, Greenland, in the period 1991-1994, J. Geophys. Res., 100, 25,965-25,977, 1995.

Thayer, J.P., N. Nielsen, and J. Jacobsen, Noctilucent cloud observations over Greenland by a Ray-leigh lidar, Geophys. Res. Lett., 22, 2961, 1995.

 

1994

Beyerle, G., R. Neuber, O. Schrems, F. Wittrock, and B. Knudsen, Multiwavelength lidar measurements of stratospheric aerosols above Spitsbergen during winter 1992/93, Geophys. Res. Lett., 21, 57, 1994.

Braathen, G.O., M. Rummukainen, E. Kyrö, U. Schmidt, A. Dahlback, T.S. Jørgensen, R. Fabian, V.V. Rudakov, M. Gil, and R. Borchers, Temporal development of ozone within the Arctic vortex during the winter of 1991/92, Geophys. Res. Lett., 21, 1407, 1994.

Brandtjen, R., T. Klüpfel, D. Perner, and B.M. Knudsen, Airborne measurements during the European Arctic Stratospheric Ozone Experiment: Observation of OClO, Geophys. Res. Lett., 21, 1363, 1994.

Dahlback, A., P. Rairoux, B. Stein, M. Del Guasta, E. Kyrö, L. Stefanutti, N. Larsen, and G. Braathen, Effects of stratospheric aerosols from the Mt. Pinatubo eruption on ozone measurements at Sodankylä, Finland in 1991/92, Geophys. Res. Lett., 21, 1399, 1994.

Knudsen, B.M., and G. D. Carver, Accuracy of the isentropic trajectories calculated for the EASOE campaign, Geophys. Res. Lett., 21, 1199, 1994.

Larsen, N., The Impact of Freezing of Sulfate Aerosols on the Formation of Polar Stratospheric Clouds, Geophys. Res. Lett., 21, 425, 1994.

Larsen, N., B. Knudsen, T.S. Jørgensen, A. di Sarra, D. Fuà, P. Di Girolamo, G. Fiocco, M. Cacciani, J.M. Rosen, and N.T. Kjome, Backscatter measurements of the stratospheric aerosols at Thule during January-February 1992, Geophys. Res. Lett., 21, 1303, 1994.

Larsen, N., B. Knudsen, I.S. Mikkelsen, T.S. Jørgensen, and P. Eriksen, Ozone depletion in the arctic stratosphere in early 1993, Geophys. Res. Lett., 21, 1611-1614, 1994.

Lutman, E. R., J.A. Pyle, R.L. Jones, D.J. Lary, A.R. MacKenzie, I. Kilbane-Dawe, N. Larsen, and B. Knudsen, Trajectory model studies of ClOx activation during the 1991/92 northern hemisphere winter, Geophys. Res. Lett., 21, 1419, 1994.

MacKenzie, A.R., B. Knudsen, R. L. Jones, and E. R. Lutman, The spatial and temporal extent of chlorine activation by polar stratospheric clouds in the northern hemisphere winters of 1988/89 and 1991/92, Geophys. Res. Lett., 21, 1423, 1994.

Neuber, R., G. Beyerle, G. Fiocco, A. di Sarra, K. H. Fricke, Ch. David, S. Godin, B.M. Knudsen, L. Stefanutti, G. Vaughan, and J.-P. Wolf, Latitudinal distribution of stratospheric aerosols during the EASOE winter 1991/92, Geophys. Res. Lett., 21, 1283, 1994.

Rosen, J. M., N. T. Kjome, H. Fast, and N. Larsen, Volcanic aerosol and polar stratospheric clouds in the winter 1992/93 north polar vortex, Geophys. Res. Lett., 21, 61, 1994.

Reid, S. J., G. Vaughan, N.J. Mitchell, I.T. Prichard, H.J. Smit, T.S. Jorgensen, C. Varotsos, and H. de Backer, Distribution of ozone laminae during EASOE and the possible influence of inertia-gravity waves, Geophys. Res. Lett., 21, 1479-1482, 1994.

Rummukainen, M., B. Knudsen, and P. von der Gathen, Dynamical diagnostics of the edges of the polar vortices, Ann. Geophys., 12, 1114-1118, 1994.

Schäfer, H. J., P. Scheuch, M. Langer, K. H. Fricke, U. von Zahn, and B.M. Knudsen, Lidar obser-vations of polar stratospheric clouds at Andøya, Norway, in January 1992, Geophys. Res. Lett., 21, 1307, 1994.

Vaughan, G., D. P. Wareing, S. B. Jones, L. Thomas, and N. Larsen, Lidar measurements of Mt. Pinatubo aerosols at Aberystwyth from August 1991 through March 1992, Geophys, Res. Lett., 21, 1315, 1994.