Folie 1

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 Kats5, Sergey Khaikin5,
  Leonid Korshunov5, Daria Vasilyeva5, Holger
  Vömel6, Roland Neuber7, Marion Müller7, Niklaus
  Kämpfer8, Beat Deuber8, 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
Esko Kyrö, Finnish Meteorological Institute
2
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
Lindenbergs own calibration/calculation method
Esko Kyrö, Finnish Meteorological Institute
3
Vaisala Radiosonde RS-92 (2005 gt at FMI).
Humicap-h Unit in the Sensorboom Is the Same As
in RS-90. Main Developments in Temperature Sensor
(Very Small Radiation Corr/fast), in Calibration
and Computation Procedures of Humicap, and
Correlating GPS Wind Finding. All Digital.
Esko Kyrö, Finnish Meteorological Institute
4
Peltier cooled dew/frostpoint mirror hygrometer
Snow White of Meteolabor AG, Switzerland. The
mirror and sondepackage.
Esko Kyrö, Finnish Meteorological Institute
5
Cryogen cooled Frostpoint mirror Hygrometer (CFH)
of Colorado University The mirror, control board
and sonde package
Esko Kyrö, Finnish Meteorological Institute
6
Lyman Alpha hygrometer from Central Aerological
Observatory, FLASH
Esko Kyrö, Finnish Meteorological Institute
7
MIAWARA, the 22 GHz travelling microwave
radiometer of University of Bern
Esko Kyrö, Finnish Meteorological Institute
8
An example of Balloon Trajectories during LAUTLOS
Campaign
Rigel Kivi, Tuomo Suortti, Finnish Meteorological
Institute
9
LAUTLOS Heavy payload configuration 17 UT, with
NOAA and FLASH
Rigel Kivi, Tuomo Suortti, Finnish Meteorological
Institute
10
LAUTLOS Light weight payload configuration 1130
UT and 17 UT without NOAA/FLASH
RS-80 A
Rigel Kivi, Tuomo Suortti, Finnish Meteorological
Institute
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Rigel Kivi, Tuomo Suortti, Finnish Meteorological
Institute
12
Ulrich Leiterer, Meteorologisches Observatorium
Lindenberg
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Ulrich Leiterer, Meteorologisches Observatorium
Lindenberg
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Ulrich Leiterer, Meteorologisches Observatorium
Lindenberg
15
Ulrich Leiterer, Meteorologisches Observatorium
Lindenberg
16
Ulrich Leiterer, Meteorologisches Observatorium
Lindenberg
17
Ulrich Leiterer, Meteorologisches Observatorium
Lindenberg
18
Ulrich Leiterer, Meteorologisches Observatorium
Lindenberg