Kämpfer, Niklaus

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2017

Hocke, Klemens; Schranz, Franziska Martina; Maillard Barras, Eliane; Moreira Méndez, Lorena; Kämpfer, Niklaus (2017). An Atlantic streamer in stratospheric ozone observations and SD-WACCM simulation data. Atmospheric chemistry and physics, 17(5), pp. 3445-3452. European Geosciences Union 10.5194/acp-17-3445-2017

2016

Lainer, Martin Lorenz Maximilian; Hocke, Klemens; Kämpfer, Niklaus (2016). Variability of mesospheric water vapor above Bern in relation to the 27-day solar rotation cycle. Journal of atmospheric and solar-terrestrial physics, 143-144, pp. 71-87. Elsevier Science 10.1016/j.jastp.2016.03.008

Moreira Méndez, Lorena; Hocke, Klemens; Navas Guzman, Francisco Jesus; Eckert, Ellen; von Clarmann, Thomas; Kämpfer, Niklaus (2016). The natural oscillations in stratospheric ozone observed by the GROMOS microwave radiometer at the NDACC station Bern. Atmospheric chemistry and physics, 16(16), pp. 10455-10467. European Geosciences Union 10.5194/acp-16-10455-2016

Rüfenacht, Rolf; Hocke, Klemens; Kämpfer, Niklaus (2016). First continuous ground-based observations of long period oscillations in the vertically resolved wind field of the stratosphere and mesosphere. Atmospheric chemistry and physics, 16(8), pp. 4915-4925. European Geosciences Union 10.5194/acp-16-4915-2016

Fernandez Vidal, Susana; Rüfenacht, Rolf; Kämpfer, Niklaus; Portafaix, Thierry; Posny, Françoise; Payen, Guillaume (2016). Results from the validation campaign of the ozone radiometer GROMOS-C at the NDACC station of La Réunion Island. Atmospheric chemistry and physics Discussions, pp. 1-23. European Geosciences Union 10.5194/acp-2016-117

Schanz, Ansgar Ulrich; Hocke, Klemens; Kämpfer, Niklaus (2016). On forced and free atmospheric oscillations near the 27-day periodicity. Earth, Planets and Space, 68(1) Springer 10.1186/s40623-016-0460-y

Fernandez Vidal, Susana; Rüfenacht, Rolf; Kämpfer, Niklaus; Portafaix, Thierry; Posny, Françoise; Payen, Guillaume (2016). Results from the validation campaign of the ozone radiometer GROMOS-C at the NDACC station of Réunion island. Atmospheric chemistry and physics, 16(12), pp. 7531-7543. European Geosciences Union 10.5194/acp-16-7531-2016

Navas Guzman, Francisco Jesus; Kämpfer, Niklaus; Haefele, Alexander (2016). Validation of brightness and physical temperature from two scanning microwave radiometers in the 60 GHz O₂ band using radiosonde measurements. Atmospheric Measurement Techniques (AMT), 9(9), pp. 4587-4600. Copernicus Publications 10.5194/amt-9-4587-2016

2015

Lainer, Martin Lorenz Maximilian; Kämpfer, Niklaus; Tschanz, Brigitte; Nedoluha, G. E.; Ka, S.; Oh, J. J. (2015). Trajectory mapping of middle atmospheric water vapor by a mini network of NDACC instruments. Atmospheric chemistry and physics, 15(16), pp. 9711-9730. European Geosciences Union 10.5194/acp-15-9711-2015

Tschanz, Brigitte; Kämpfer, Niklaus (2015). Signatures of the 2-day wave and sudden stratospheric warmings in Arctic water vapour observed by ground-based microwave radiometry. Atmospheric chemistry and physics, 15(9), pp. 5099-5108. European Geosciences Union 10.5194/acp-15-5099-2015

Moreira Méndez, Lorena; Hocke, Klemens; Eckert, E.; von Clarmann, T.; Kämpfer, Niklaus (2015). Trend analysis of the 20-year time series of stratospheric ozone profiles observed by the GROMOS microwave radiometer at Bern. Atmospheric chemistry and physics, 15(19), pp. 10999-11009. European Geosciences Union 10.5194/acp-15-10999-2015

Keckhut, Philippe; Courcoux, Yann; Baray, Jean-Luc; Porteneuve, Jacques; Vérèmes, Hélène; Hauchecorne, Alain; Dionisi, Davide; Posny, Françoise; Cammas, Jean-Pierre; Payen, Guillaume; Gabarrot, Franck; Evan, Stephanie; Khaykin, Sergey; Rüfenacht, Rolf; Tschanz, Brigitte; Kämpfer, Niklaus; Ricaud, Philippe; Abchiche, Abdel; Leclair-de-Bellevue, Jimmy and Duflot, Valentin (2015). Introduction to the Maïdo Lidar Calibration Campaign dedicated to the validation of upper air meteorological parameters. Journal of Applied Remote Sensing, 9(1), 094099. Society of Photo-optical Instrumentation Engineers (SPIE) 10.1117/1.JRS.9.094099

Lainer, Martin Lorenz Maximilian; Kämpfer, Niklaus; Tschanz, Brigitte; Nedoluha, G. E.; Ka, S.; Oh, J. J. (2015). Trajectory mapping of middle atmospheric water vapor by a mini network of NDACC instruments. Atmospheric chemistry and physics Discussions, 15(8), pp. 12777-12819. European Geosciences Union 10.5194/acpd-15-12777-2015

Navas Guzman, Francisco Jesus; Kämpfer, Niklaus; Murk, Axel; Larsson, R.; Buehler, S. A.; Eriksson, P. (2015). Zeeman effect in atmospheric O₂ measured by ground-based microwave radiometry. Atmospheric Measurement Techniques (AMT), 8(4), pp. 1863-1874. Copernicus Publications 10.5194/amt-8-1863-2015

Wacker, Stefan; Gröbner, Julian; Zysset, Christoph; Diener, Laurin; Tzoumanikas, Panagiotis; Kazantzidis, Andreas; Vuilleumier, Laurent; Stöckli, Reto; Nyeki, Stephan; Kämpfer, Niklaus (2015). Cloud observations in Switzerland using hemispherical sky cameras. Journal of Geophysical Research: Atmospheres, 120(2), pp. 695-707. American Geophysical Union 10.1002/2014JD022643

Fernandez Vidal, Susana; Murk, Axel; Kämpfer, Niklaus (2015). GROMOS-C, a novel ground-based microwave radiometer for ozone measurement campaigns. Atmospheric Measurement Techniques (AMT), 8(7), pp. 2649-2662. Copernicus Publications 10.5194/amt-8-2649-2015

Le Pichon, A.; Assink, J. D.; Heinrich, P.; Blanc, E.; Charlton-Perez, A.; Lee, C. F.; Keckhut, P.; Hauchecorne, A.; Rüfenacht, Rolf; Kämpfer, Niklaus; Drob, D. P.; Smets, P. S. M.; Evers, L. G.; Ceranna, L.; Pilger, C.; Ross, O.; Claud, C. (2015). Comparison of co-located independent ground-based middle atmospheric wind and temperature measurements with numerical weather prediction models. Journal of Geophysical Research: Atmospheres, 120(16), pp. 8318-8331. American Geophysical Union 10.1002/2015JD023273

Rüfenacht, Rolf; Hocke, Klemens; Kämpfer, Niklaus (2015). First continuous ground-based observations of long period oscillations in strato-/mesospheric wind profiles. Atmospheric chemistry and physics Discussions, 15(23), pp. 35035-35056. European Geosciences Union 10.5194/acpd-15-35035-2015

2014

Schanz, Ansgar Ulrich; Hocke, Klemens; Kämpfer, Niklaus (2014). Daily ozone cycle in the stratosphere: global, regional and seasonal behaviour modelled with the Whole Atmosphere Community Climate Model. Atmospheric chemistry and physics, 14(14), pp. 7645-7663. European Geosciences Union 10.5194/acp-14-7645-2014

Scheiben, Dominik; Tschanz, Brigitte; Hocke, Klemens; Kämpfer, Niklaus; Ka, S.; Oh, J. J. (2014). The quasi 16-day wave in mesospheric water vapor during boreal winter 2011/2012. Atmospheric chemistry and physics, 14(13), pp. 6511-6522. European Geosciences Union 10.5194/acp-14-6511-2014

Studer, Simone; Hocke, Klemens; Schanz, Ansgar Ulrich; Schmidt, Hauke; Kämpfer, Niklaus (2014). A climatology of the diurnal variations of stratospheric and mesospheric ozone over Bern, Switzerland. Atmospheric chemistry and physics, 14(12), pp. 5905-5919. European Geosciences Union 10.5194/acp-14-5905-2014

Schanz, Ansgar Ulrich; Hocke, Klemens; Kämpfer, Niklaus; Chabrillat, Simon; Inness, Antje; Palm, Mathias; Notholt, Justus; Boyd, Ian; Parrish, Alan; Kasai, Yasuko (2014). The diurnal variation in stratospheric ozone from the MACC reanalysis, the ERA-Interim reanalysis, WACCM and Earth observations: characteristics and intercomparison. Atmospheric chemistry and physics Discussions, 14(23), pp. 32667-32708. European Geosciences Union 10.5194/acpd-14-32667-2014

Guzmán, Francisco Navas; Kämpfer, Niklaus; Stähli, Oliver (2014). An integrated approach toward the incorporation of clouds in the temperature retrievals from microwave measurements. Atmospheric Measurement Techniques (AMT), 7(6), pp. 1619-1628. Copernicus Publications 10.5194/amt-7-1619-2014

Fernandez Vidal, Susana; Murk, Axel; Kämpfer, Niklaus (2014). Design and Characterization of a Peltier-Cold Calibration Target for a 110-GHz Radiometer. IEEE transactions on geoscience and remote sensing, 53(1), pp. 344-351. Institute of Electrical and Electronics Engineers IEEE 10.1109/TGRS.2014.2322336

Rüfenacht, Rolf; Murk, Axel; Kämpfer, Niklaus; Eriksson, Patrick; Buehler, Stefan A. (2014). Middle-atmospheric zonal and meridional wind profiles from polar, tropical and midlatitudes with the ground-based microwave Doppler wind radiometer WIRA. Atmospheric Measurement Techniques (AMT), 7(12), 4491 - 4505. Copernicus Publications 10.5194/amt-7-4491-2014

Navas-Guzmán, Francisco; Stähli, Oliver; Kämpfer, Niklaus (2014). Study of cloud effect on the tropospheric temperature retrievals. Atmospheric Measurement Techniques. Discussions, 7(2), pp. 1305-1331. Copernicus Publications 10.5194/amtd-7-1305-2014

2013

Scheiben, Dominik; Tschanz, Brigitte; Hocke, Klemens; Kämpfer, Niklaus; Ka, Soohyun; Oh, Jung Jin (2013). The quasi 16-day wave in mesospheric water vapor during boreal winter 2011/2012. Atmospheric chemistry and physics Discussions, 13(11), pp. 29007-29034. European Geosciences Union 10.5194/acpd-13-29007-2013

Stähli, Oliver; Murk, Axel; Kämpfer, Niklaus; Mätzler, Christian; Eriksson, Patrick (2013). Microwave radiometer to retrieve temperature profiles from the surface to the stratopause. Atmospheric Measurement Techniques (AMT), 6(9), pp. 2477-2494. Copernicus Publications 10.5194/amt-6-2477-2013

Scheiben, Dominik; Schanz, Ansgar Ulrich; Tschanz, Brigitte; Kämpfer, Niklaus (2013). Diurnal variations in middle-atmospheric water vapor by ground-based microwave radiometry. Atmospheric chemistry and physics, 13(14), pp. 6877-6886. European Geosciences Union 10.5194/acp-13-6877-2013

Studer, Simone; Hocke, Klemens; Pastel, Maude; Godin-Beekmann, Sophie; Kämpfer, Niklaus (2013). Intercomparison of stratospheric ozone profiles for the assessment of the upgraded GROMOS radiometer at Bern. Atmospheric Measurement Techniques. Discussions, 6(4), pp. 6097-6146. Copernicus Publications 10.5194/amtd-6-6097-2013

Hocke, Klemens; Studer, S.; Martius, Olivia; Scheiben, Dominik; Kämpfer, Niklaus (2013). A 20-day period standing oscillation in the northern winter stratosphere. Annales geophysicae, 31(4), pp. 755-764. Gauthier-Villars 10.5194/angeo-31-755-2013

Tschanz, Brigitte; Straub, Corinne; Scheiben, Dominik; Walker, K. A.; Stiller, G. P.; Kämpfer, Niklaus (2013). Validation of middle-atmospheric campaign-based water vapour measured by the ground-based microwave radiometer MIAWARA-C. Atmospheric Measurement Techniques, 6(7), pp. 1725-1745. Copernicus Publications 10.5194/amt-6-1725-2013

Studer, Simone; Hocke, Klemens; Schanz, Ansgar Ulrich; Schmidt, Hauke; Kämpfer, Niklaus (2013). A climatology of the diurnal variations of stratospheric and mesospheric ozone over Bern, Switzerland. Atmospheric chemistry and physics Discussions, 13(8), pp. 22445-22485. European Geosciences Union 10.5194/acpd-13-22445-2013

Hocke, Klemens; Martin, Lorenz; Kämpfer, Niklaus (2013). Survey of Intercomparisons of Water Vapour Measurements. In: Kämpfer, Niklaus (ed.) Monitoring Atmospheric Water Vapour: Ground-Based Remote Sensing and In-situ Methods. ISSI Scientific Report Series: Vol. 10 (pp. 243-288). New York: Springer 10.1007/978-1-4614-3909-7_11

2012

Scheiben, Dominik; Straub, Corinne; Hocke, Klemens; Forkman, Peter; Kämpfer, Niklaus (2012). Observations of middle atmospheric H2O and O3 during the 2010 major sudden stratospheric warming by a network of microwave radiometers. Atmospheric chemistry and physics, 12(16), pp. 7753-7765. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-12-7753-2012

Kämpfer, Niklaus; Nedoluha, Gerald; Haefele, Alexander; De Wachter, Evelyn (2012). Microwave Radiometry. In: Kämpfer, Niklaus (ed.) Monitoring Atmospheric Water Vapour. Ground-Based Remote Sensing and In-situ Methods. ISSI Scientific Report Series: Vol. 10. Heidelberg: Springer Verlag

Kämpfer, Niklaus (ed.) (2012). Monitoring Atmospheric Water Vapour. Ground-Based Remote Sensing and In-situ Methods. ISSI Scientific Report Series: Vol. 10. Heidelberg: Springer Verlag

Bleisch, R.; Kämpfer, N. (2012). Adding constraints by in situ informations to optimal estimation retrievals of tropospheric water vapour profiles from microwave radiometry. Journal of quantitative spectroscopy & radiative transfer, 113(6), pp. 1993-2003. Oxford: Pergamon 10.1016/j.jqsrt.2012.07.002

Rüfenacht, Rolf; Kämpfer, Niklaus; Murk, Axel (2012). First middle-atmospheric zonal wind profile measurements with a new ground-based microwave Doppler-spectro-radiometer. Atmospheric Measurement Techniques (AMT), 5(11), pp. 2647-2659. Göttingen: Copernicus Publications 10.5194/amt-5-2647-2012

Straub, Corinne; Tschanz, Brigitte; Hocke, Klemens; Kämpfer, Niklaus; Smith, Anne K. (2012). Transport of mesospheric H2O during and after the stratospheric sudden warming of January 2010: observation and simulation. Atmospheric chemistry and physics, 12(2), pp. 5413-5427. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-12-5413-2012

Stiller, G.P.; Kiefer, M.; Eckert, E.; von Clarmann, T.; Kellmann, S.; Garcia-Comas, M.; Funke, B.; Leblanc, T.; Fetzer, E.; Froidevaux, L.; Gomez, M.; Hall, E.; Hurst, D.; Jordan, A.; Kämpfer, N.; Lambert, A.; McDermid, I.S.; McGee, T.; Miloshevich, L.; Nedoluha, G.; ... (2012). Validation of MIPAS IMK/IAA temperature, water vapor, and ozone profiles with MOHAVE-2009 campaign measurements. Atmospheric Measurement Techniques (AMT), 5(2), pp. 289-320. Göttingen: Copernicus Publications 10.5194/amt-5-289-2012

Studer, Simone; Hocke, Klemens; Kämpfer, Niklaus (2012). Intraseasonal oscillations of stratospheric ozone above Switzerland. Journal of atmospheric and solar-terrestrial physics, 74, pp. 189-198. Kidlington, UK: Elsevier Science 10.1016/j.jastp.2011.10.020

Fernandez, Susana; Murk, Axel; Kämpfer, Niklaus (2012). Characterization of microwave cavity resonance absorbers from Emerson and Cuming (IAP Research Report 2012-0). Bern: Institut für Angewandte Physik Universität Bern

Hocke, Klemens; Martin, Lorenz; Kämpfer, Niklaus (2012). Survey of Intercomparisons of Water Vapour Measurements (IAP Research Report 2012-0). Bern: Institut für Angewandte Physik Universität Bern

Bleisch, René; Kämpfer, Niklaus (2012). MIAWARA retrievals: Currently used retrievals and attempts of a combined retrieval from surface to mesosphere (IAP Research Report 2012-0). Bern: Institut für Angewandte Physik Universität Bern

Bleisch, René; Kämpfer, Niklaus (2012). Retrieval of tropospheric water vapour profiles by using spectra from a microwave spectro-radiometer at 22 GHz. In: 2012 12th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) (pp. 1-3). Washington, DC: IEEE Computer Society 10.1109/MicroRad.2012.6185249

2011

Hocke, Klemens; Kämpfer, Niklaus (2011). Hovmöller diagrams of climate anomalies in NCEP/NCAR reanalysis from 1948 to 2009. Climate dynamics, 36(1-2), pp. 355-364. Heidelberg: Springer 10.1007/s00382-009-0706-5

De Wachter, Evelyn; Hocke, Klemens; Flury, Thomas; Scheiben, Dominik; Kämpfer, Niklaus; Ka, Soohyun; Oh, Jung Jin (2011). Signatures of the Sudden Stratospheric Warming events of January - February 2008 in Seoul, S. Korea. Advances in space research, 48(10), pp. 1631-1637. Oxford: Pergamon 10.1016/j.asr.2011.08.002

Stähli, Oliver; Mätzler, Christian; Murk, Axel; Kämpfer, Niklaus (2011). A Surface-Based Imaging Method for Water Vapor and Liquid Clouds Using a Scanning Radiometer at 91 GHz. IEEE transactions on geoscience and remote sensing, 49(9), pp. 3273-3280. New York, N.Y.: Institute of Electrical and Electronics Engineers IEEE 10.1109/TGRS.2011.2160269

Bleisch, René; Kämpfer, Niklaus; Haefele, Alexander (2011). Retrieval of tropospheric water vapour by using spectra of a 22 GHz radiometer. Atmospheric Measurement Techniques (AMT), 4(9), pp. 1891-1903. Göttingen: Copernicus Publications 10.5194/amt-4-1891-2011

Wacker, Stefan; Gröbner, Juian; Nowak, Daniela; Vuilleumier, Laurent; Kämpfer, Niklaus (2011). Cloud effect of persistent stratus nebulosus at the Payerne BSRN site. Atmospheric research, 102(1-2), pp. 1-9. Amsterdam: Elsevier 10.1016/j.atmosres.2011.06.007

Hocke, K.; Kämpfer, N.; Gerber, C.; Mätzler, C. (2011). A complete long-term series of integrated water vapour from ground-based microwave radiometeres. International journal of remote sensing, 32(3), pp. 751-765. London: Taylor & Francis 10.1080/01431161.2010.517792

De Wachter, Evelyn; Haefele, Alexander; Kämpfer, Niklaus; Ka, Soohyun; Lee, Jung Eun; Oh, Jung Jin (2011). The Seoul Vapour Radiometer for the Middle Atmosphere: Calibration, Retrieval and Validation. IEEE transactions on geoscience and remote sensing, 49(3), pp. 1052-1062. New York, N.Y.: Institute of Electrical and Electronics Engineers IEEE 10.1109/tgrs.2010.2072932

Wacker, S.; Gröbner, J.; Hocke, K.; Kämpfer, N.; Vuilleumier, L. (2011). Trend analysis of surface cloud-free downwelling long-wave radiation from four Swiss sites. Journal of geophysical research, 116(D10), D10104. Washington, D.C.: American Geophysical Union 10.1029/2010JD015343

Straub, Corinne; Murk, Axel; Kämpfer, Niklaus; Golchert, Sven H.W.; Hochschild, Gerd; Hallgren, Kristofer; Hartogh, Paul (2011). ARIS-Campaign: Intercomparison of three ground based 22 GHz radiometers for middle atmospheric water vapor at the Zugspitze in winter 2009. Atmospheric Measurement Techniques (AMT), 4(9), pp. 1979-1994. Göttingen: Copernicus Publications 10.5194/amt-4-1979-2011

Leblanc, T.; Walsh, T.D.; McDermid, I.S.; Toon, G.C.; Blavier, J.-F.; Haines, B.; Read, W.G.; Herman, B.; Fetzer, E.; Sander, S.; Pongetti, T.; Whiteman, D.N.; McGee, T.G.; Twigg, L.; Sumnicht, G.; Venable, D.; Calhoun, M.; Dirisu, A.; Hurst, D.; Jordan, A.; ... (2011). Measurements of Humidity in the Atmosphere and Validation Experiments MOHAVE-2009; overview of campaign operations and results. Atmospheric Measurement Techniques (AMT), 4(12), pp. 2579-2605. Göttingen: Copernicus Publications 10.5194/amt-4-2579-2011

Bleisch, René; Kämpfer, Niklaus (2011). Comparison of retrievals with vertically highly resolved data from other sources (IAP Research Report 2011-0). Bern: Institut für Angewandte Physik Universität Bern

Bleisch, René; Kämpfer, Niklaus (2011). MIAWARA IR-sensor (IAP Research Report 2011-0). Bern: Institut für Angewandte Physik Universität Bern

Bleisch, René; Kämpfer, Niklaus (2011). A priori covariance and retrieval constraints in Q Pack-retrievals (IAP Research Report 2011-0). Bern: Institut für Angewandte Physik Universität Bern

Straub, Corinne; Tschanz, Brigitte; Murk, Axel; Kämpfer, Niklaus (2011). Scanning the Sun to determine the pointing of a 22 GHz water vapor radiometer (IAP Research Report 2011-0). Bern: Institut für Angewandte Physik Universität Bern

Bleisch, René; Kämpfer, Niklaus (2011). Analysis of Tipping calibrated spectra from MIAWARA (IAP Research Report 2011-0). Bern: Institut für Angewandte Physik Universität Bern

2010

Flury, Thomas; Hocke, Klemens; Kämpfer, Niklaus; Wu, D.L. (2010). Enhancements of gravity wave amplitudes at midlatitudes during sudden stratospheric warmings in 2008. ACPD Atmospheric chemistry and physics discussion, 10(12), pp. 29971-29995. Katlenburg-Lindau (D): European Geophysical Society 10.5194/acpd-10-29971-2010

Haefele, A.; Kämpfer, Niklaus (2010). Tropospheric Water Vapor Profiles Retrieved from Pressure Broadened Emission Spectra at 22 GHz. JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY, 27(1), pp. 167-172. 10.1175/2009jtecha1334.1

Straub, Corinne; Murk, Axel; Kämpfer, Niklaus (2010). MIAWARA-C, a new ground based water vapor radiometer for measurement campaigns. Atmospheric Measurement Techniques (AMT), 3(5), pp. 1271-1285. Göttingen: Copernicus Publications 10.5194/amt-3-1271-2010

2009

Flury, Thomas; Hocke, Klemens; Häfele, Alexander; Kämpfer, Niklaus; Lehmann, R. (2009). Ozone depletion, water vapor increase, and PSC generation at midlatitudes by the 2008 major stratospheric warming. Journal of geophysical research, 114(D18) Washington, D.C.: American Geophysical Union 10.1029/2009JD011940

Müller, Stefan C.; Murk, Axel; Monstein, Christian; Kämpfer, Niklaus (2009). Intercomparison of Digital Fast Fourier Transform and Accousto Optical spectrometers for microwave radiometry of the atmosphere. IEEE transactions on geoscience and remote sensing, 47(7), pp. 2233-2239. New York, N.Y.: Institute of Electrical and Electronics Engineers IEEE 10.1109/TGRS.2009.2013695

De Wachter, Evelyn; Murk, Axel; Straub, Corinne; Häfele, Alexander; Ka, Soohyun; Oh, Jung Jin; Kämpfer, Niklaus (2009). Effects of Resonances in Corrugated Horn Antennas for a 22 GHz Balancing Radiometer. IEEE geoscience and remote sensing letters, 6(1), pp. 3-7. New York, N.Y.: Institute of Electrical and Electronics Engineers IEEE 10.1109/LGRS.2008.2005851

Häfele, A.; De Wachter, Evelyn; Hocke, Klemens; Kämpfer, N.; Nedoluha, G.E.; Gomez, R.M.; Eriksson, P.; Forkman, P.; Lambert, A.; Schwartz, M.J. (2009). Validation of ground based microwave radiometers at 22 GHz for stratospheric and mesospheric water vapor. Journal of geophysical research, 114(D23) Washington, D.C.: American Geophysical Union 10.1029/2009JD011997

Hocke, Klemens; Kämpfer, Niklaus (2009). Gap filling and noise reduction of unevenly sampled data by means of the Lomb-Scargle periodogram. Atmospheric chemistry and physics, 9(12), pp. 4197-4206. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-9-4197-2009

Steinbrecht, W.; Claude, H.; Schönenborn, F.; McDermid, I.; LeBlanc, T.; Godin-Beekmann, S.; Keckhut, P.; Hauchecorne, A.; van Gijsel, J.; Swart, D.; Bodeker, G.; Parrish, A.; Boyd, I.; Kämpfer, Niklaus; Hocke, Klemens; Stolarski, R.; Frith, S.; Thomason, L.; Remsberg, E.; von Savigny, C.; ... (2009). Ozone and temperature trends in the upper stratosphere at five stations of the Network for the Detection of Atmospheric Composition Change. International journal of remote sensing, 30(15-16), pp. 3875-3886. London: Taylor & Francis 10.1080/01431160902821841

Milz, M.; Clarmann, T.V.; Bernath, P.; Boone, C.; Bühler, S.A.; Chauhan, S.; Deuber, B.; Feist, D.G.; Funke, B.; Glatthor, N.; Grabowski, U.; Griesfeller, A.; Häfele, Alexander; Höpfner, M.; Kämpfer, Niklaus; Kellmann, S.; Linden, A.; Müller, S.; Nakajima, H.; Oelhaf, H.; ... (2009). Validation of water vapour profiles (version 13) retrieved by the IMK / IAA scientific retrieval processor based on full resolution spectra measured by MIPAS on board Envisat. Atmospheric Measurement Techniques (AMT), 2(1), pp. 379-399. Göttingen: Copernicus Publications 10.5194/amt-2-379-2009

Gröbner, Julian; Wacker, Stefan; Vuilleumier, Laurent; Kämpfer, Niklaus (2009). Effective atmospheric boundary layer temperature from longwave radiation measurements. Journal of geophysical research, 114(D19) Washington, D.C.: American Geophysical Union 10.1029/2009JD012274

2008

Hocke, Klemens; Kämpfer, Niklaus (2008). Bispectral Analysis of the Long-Term Recording of Surface Pressure at Jakarta. Journal of geophysical research, 113(D10), [1-9]. Washington, D.C.: American Geophysical Union 10.1029/2007JD009356

Flury, Thomas; Müller, Stefan C.; Hocke, Klemens; Kämpfer, Niklaus (2008). Water vapor transport in the lower mesosphere of the subtropics: a trajectory analysis. Atmospheric chemistry and physics, 8(23), pp. 7273-7280. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-8-7273-2008

Flury, Thomas; Hocke, Klemens; Müller, Stefan; Kämpfer, Nik (2008). First measurements of lower mesospheric wind by airborne microwave radiometry. Geophysical Research Letters, 35(19) Washington, D.C.: American Geophysical Union 10.1029/2008GL034663

Duric, Aleksandar; Magun, Andreas; Murk, Axel; Mätzler, Christian; Kämpfer, Niklaus (2008). The Fully Polarimetric Imaging Radiometer SPIRA at 91 GHz. IEEE transactions on geoscience and remote sensing, 46(8), pp. 2323-2336. New York, N.Y.: Institute of Electrical and Electronics Engineers IEEE 10.1109/tgrs.2008.917212

Straub, Corinne; Murk, Axel; Kämpfer, Niklaus; Zardet, Dino; Stuber, Bruno (2008). Development of a 22 GHz correlating Radiometer for the observation of Stratospheric Water Vapor. In: Microrad 2008.

Häfele, Alexander; Hocke, Klemens; Kämpfer, Niklaus; Keckhut, P.; Marchand, M.; Bekki, S.; Morel, B.; Egorova, T.; Rozanov, E. (2008). Diurnal changes in middle atmospheric H2O and O3: Observations in the Alpine region and climate models. Journal of geophysical research, 113(D17) Washington, D.C.: American Geophysical Union 10.1029/2008JD009892

Hocke, Klemens; Kämpfer, Niklaus (2008). Forcing of the Earths atmosphere by solar radiation and solar wind. In: Wang, Pingzhi (ed.) Solar Physics Research Trends (pp. 327-344). New York: Nova Science Publishers

Müller, Stefan C.; Kämpfer, Niklaus; Feist, Dietrich G.; Häfele, Alexander; Milz, Mathias; Sitnikov, Nikolay; Schiller, Cornelius; Kiemle, Christoph; Urban, Joachim (2008). Validation of stratospheric water vapour measurements from the airborne microwave radiometer AMSOS. Atmospheric chemistry and physics, 8(12), pp. 3169-3183. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-8-3169-2008

Suortti, T.M.; Kats, A.; Kivi, R.; Kämpfer, Niklaus; Leiterer, U.; Miloshevich, L.; Neuber, R.; Paukkunen, A.; Ruppert, P.; Vömel, H.V.; Yushkov, V. (2008). Tropospheric Comparisons of Vaisala Radiosondes and Balloon-Borne Frost-Point and Lyman-α Hygrometers during the LAUTLOS-WAVVAP Experiment. JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY, 25(2), pp. 149-166. 10.1175/2007JTECHA887.1

2007

Hocke, Klemens; Kämpfer, Niklaus; Ruffieux, Dominique; Froidevaux, Lucien; Parrish, Alan; Boyd, I; von Clarmann, T; Steck, T; Timofeyev, Y.M.; Polyakov, A.V.; Kyrölä, E (2007). Comparison and synergy of stratospheric ozone measurements by satellite limb sounders and the ground-based microwave radiometer SOMORA. Atmospheric chemistry and physics, 7(15), pp. 4117-4131. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-7-4117-2007

Feist, Dietrich; Geer, Alan; Müller, Stefan; Kämpfer, Niklaus (2007). Middle atmosphere water vapour and dynamical features in aircraft measurements and ECMWF analyses. Atmospheric chemistry and physics, 7(20), pp. 5291-5307. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-7-5291-2007

Hocke, Klemens; Kämpfer, Niklaus (2007). Forcing of the Earths atmosphere by solar radiation and solar wind. In: Wang, Pingzhi (ed.) Solar Physics Research Trends (pp. 327-344). New York: Nova Science Publishers

Straub, Corinne; Murk, Axel; Teniente, Jorge; Kämpfer, Niklaus (2007). Optical design for a compact 22 GHz radiometer for middle atmospheric water vapor. In: EuCAP 2007. The Second European Conference on Antennas and Propagation, 2007 ([1-5]). Stevenage: The Institution of Engineering and Technology

Hocke, Klemens; Kämpfer, Niklaus; Haefele, Alexander; Ruffieux, Dominique (2007). From the troposphere to the thermosphere: combining atmospheric profiles from satellites, ECMWF, and ground-based microwave radiometry. In: Lacoste, H.; Ouwehand, L. (eds.) Proceedings of the Envisat Symposium 2007, Montreux, Switzerland (ESA SP-636, July 2007). Paris: European Space Agency

Müller, Stefan C; Milz, Mathias; Kämpfer, Niklaus (2007). Comparison of water vapor measurements between the satellite limb sounder MIPAS/ENVISAT and the airborne microwave radiometer AMSOS. In: Lacoste, H.; Ouwehand, L. (eds.) Proceedings of the Envisat Symposium 2007, Montreux, Switzerland (ESA SP-636, July 2007). Paris: European Space Agency

2006

Morland, June; Deuber, Beat; Feist, Dietrich; Martin, Lorenz; Nyeki, Stephan; Kämpfer, Niklaus; Mätzler, Christian; Jeannet, P; Vuilleumier, L (2006). The STARTWAVE atmospheric water vapour database. Atmospheric chemistry and physics, 6(8), pp. 2039-2056. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-6-2039-2006

Kämpfer, Niklaus; Mätzler, Christian; Brocard, Emmanuel; Feist, Dietrich; Haefele, Alexander; Hocke, Klemens; Martin, Lorenz; Morland, June; Müller, Stefan; Schneebeli, Marc (2006). Microwave remote sensing of the atmosphere - a University profile. IEEE Geoscience and Remote Sensing Society newsletter(140), pp. 13-17. New York, N.Y.: Institute of Electrical and Electronics Engineers IEEE

Morland, June; Liniger, Mark; Kunz, Heike; Balin, Ioan; Nyeki, Stephan; Mätzler, Christian; Kämpfer, Niklaus (2006). Comparison of GPS and ERA40 IWV in the Alpine region, including correction of GPS observations at Jungfraujoch (3584 m). Journal of geophysical research, 111(D4), [1-12]. Washington, D.C.: American Geophysical Union 10.1029/2005JD006043

Hocke, Klemens; Kämpfer, Niklaus; Feist, Dietrich; Calisesi, Yasmine; Jiang, Jonathan; Chabrillat, Simon (2006). Temporal variance of lower mesospheric ozone over Switzerland during winter 2000/2001. Geophysical Research Letters, 33(9), L09801. Washington, D.C.: American Geophysical Union 10.1029/2005GL025496

Dumitru, Cristina; Hocke, Klemens; Kämpfer, Niklaus; Calisesi, Yasmine (2006). Comparison and validation studies related to ground-base microwave observations of ozone in the stratosphere and mesosphere. Journal of atmospheric and solar-terrestrial physics, 68(7), pp. 745-756. Kidlington, UK: Elsevier Science 10.1016/j.jastp.2005.11.001

Steinbrecht, W; Claude, H; Schönenborn, F; McDermid, I; Leblanc, T; Godin, S; Song, T; Swart, D; Meijer, Y; Bodeker, G; Connor, B; Kämpfer, Niklaus; Hocke, Klemens; Calisesi, Yasmine; Schneider, N; Noe, J; Parrish, A; Boyd, I; Brühl, C; Steil, B; ... (2006). Long-Term Evolution of Upper Stratospheric Ozone at Selected Stations of the Network for the Detection of Stratospheric Change (NDSC). Journal of geophysical research, 111(D10), n/a-n/a. Washington, D.C.: American Geophysical Union 10.1029/2005JD006454

Murk, Axel; Wylde, Richard; Spurrett, Rob; Fürholz, Philipp; Kämpfer, Niklaus (2006). Blackbody Calibration Targets with Ultralow Reflectivity at Submillimeter Wavelengths. In: 4th ESA Workshop on Millimetre-Wave Technology and Applications, The 8th Topical Symposium on Millimeter Waves - TSMMW2006, The 7th MINT Millimeter-Wave International Symposium - MINT-MIS2006, February 15-17, 2006, Espoo, Finland.

Murk, Axel; Biber, Stephan; Tils, Thomas; Pütz, Patrick; Schmidt, Lorenz-Peter; Kämpfer, Niklaus (2006). Characterization of Micromachined Waveguide Hybrids at 350 and 650 GHz. In: 17th International Symposium on Space Terahertz Technology, May 10-12, 2006, Paris, France (pp. 274-277). Charlottesville: National Radio Astronomy Observatory

Hocke, Klemens; Haefele, Alexander; Le Drian, Colombe; Kämpfer, Niklaus; Ruffieux, Dominique; von Clarmann, T; Milz, Mathias; Steck, Tilmann; Froidevaux, Lucien; Pumphrey, Hugh; Jimenez, Carlos; Walker, K.A.; Bernath, P; Timofeyev, Y.M.; Polyakov, A.V. (2006). Cross-validation of recent satellite and ground-based measurements of ozone and water vapor in the middle atmosphere. In: Atmospheric Science Conference, 8-12 May 2006, Frascati, Italy. Paris: European Space Agency

Müller, Stefan C; Murk, Axel; Monstein, Christian; Kämpfer, Niklaus; Meyer, Hansueli (2006). Microwave remote sensing of stratospheric trace gases using digital Fast Fourier Transform spectrometers. In: Wiesbeck, Werner; Thumm, Manfred (eds.) German Microwave Conference - GeMIC 2006. University Karlsruhe. March 28 – 30, 2006.

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