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Hygrometer Intercomparison Campaign at Sodankylä, LAUTLOS Jan 26-Feb 28, 2004

Hygrometer Intercomparison Campaign at Sodankylä, LAUTLOS Jan 26-Feb 28, 2004

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Hygrometer Intercomparison Campaign at Sodankylä, LAUTLOS Jan 26-Feb 28, 2004

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  1. Hygrometer Intercomparison Campaign at Sodankylä, LAUTLOS Jan 26-Feb 28, 2004 Esko Kyrö1, Rigel Kivi1, Juha Karhu1, Timo Turunen1, Tuomo Suortti1, Timo Sukuvaara1, Ari Paukkunen2, Paul Ruppert3, Rolf Maag3, Thomas Brossi3, Ulrich Leiterer4, Tatjana Naebert4, Gisela Peters4, Vladimir Yuskov5, Alexander Lukyanov5, Alexander Katz5, Sergey Khaikin5, Leonid Korshunov5, Daria Vasilyeva5, Holger Vömel6, Roland Neuber7, Marion Müller7, Niklaus Kämpfer8, Beat Dauber8, Alexander Häfele8, Dietrich Feist8 1. Finnish Met. Institute-Arctic Research Centre , Sodankylä, Finland 2. Vaisala Oyj, Helsinki, Finland 3. Meteolabor AG, Zürich, Switzerland 4. German Weather Service, Meteorological Observatory Lindenberg, Germany 5. Central Aerological Observatory, Moscow, Russia 6. University of Colorado, Boulder, USA 7. Alfred Wegener Institute for Polar and Marine Research, Potsdam, Germany 8. University of Bern , Switzerland

  2. Vaisala radiosonde RS-80 uses single Humicap A-polymer or H-polymer (used 1982-1999 at FMI)

  3. Vaisala RS-90 sonde has dual H-polymer humicap switching sequentially between heating(=de-icing) and measuring cycles (1999-2004 at FMI). FN-sonde of Lindenberg Observatory, Germany, uses slightly modified Vaisala RS-90 and Lindenberg’s own calibration/calculation method

  4. Vaisala radiosonde RS-92 (2005 –> at FMI). Humicap-H unit in the sensorboom is the same as in RS-90. Developments in sensor technology, in ground preparation of Humicap, calibration and computation procedures of Humicap, and code correlating GPS Wind finding. All digital.

  5. Peltier cooled dew/frostpoint mirror hygrometer ”Snow White” of Meteolabor AG, Switzerland. The mirror and sondepackage.

  6. Cryogen cooled Fostpoint mirror Hygrometer (CFH) of Colorado University: The mirror, control board and sonde package

  7. Lyman Alpha hygrometer from Central Aerological Observatory, FLASH

  8. MIAWARA, the 22 Ghz travelling microwave radiometer of University of Bern

  9. D. Feist, University of Bern

  10. LAUTLOS Payload configuration FLASH RS-80 FN-90 Lindenberg NOAA SnowWhite RS-92

  11. LAUTLOS water vapor campaign action at Sodankylä, Jan 26 - Feb 27, 2004

  12. Typical balloon trajectory

  13. Tropospheric part of profiles

  14. Water vapour profiles from the ground to the mesosphereData from LAUTLOS campaign in Sodankylä, Feb. 2004

  15. Profiles of Cryogenic Frostpoint Hygrometer of NOOA and Lyman-alpha hygrometer of CAO on the flight of Feb 17. A.Luklyanov

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