Transcript Meteorologisches Observatorium Lindenberg Hygrometer Intercomparison Campaign at Sodankylä, LAUTLOS Jan 26-feb 28, 2004 Esko Kyrö1, Rigel Kivi1, Juha Karhu1, Timo Turunen1, Tuomo Suortti1,

Meteorologisches Observatorium Lindenberg
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
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Esko Kyrö, Finnish Meteorological Institute
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Meteorologisches Observatorium Lindenberg
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 RS90 and Lindenberg’s own calibration/calculation method
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Esko Kyrö, Finnish Meteorological Institute
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Vaisala Radiosonde RS-92 (2005 –> 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.
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Esko Kyrö, Finnish Meteorological Institute
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Peltier cooled dew/frostpoint mirror hygrometer ”Snow White” of
Meteolabor AG, Switzerland. The mirror and sondepackage.
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Esko Kyrö, Finnish Meteorological Institute
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Cryogen cooled Frostpoint mirror Hygrometer (CFH) of Colorado
University: The mirror, control board and sonde package
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Esko Kyrö, Finnish Meteorological Institute
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Lyman Alpha hygrometer from Central Aerological Observatory,
FLASH
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Esko Kyrö, Finnish Meteorological Institute
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MIAWARA, the 22 GHz travelling microwave radiometer of
University of Bern
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Esko Kyrö, Finnish Meteorological Institute
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An example of Balloon
Trajectories during LAUTLOS
Campaign
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Rigel Kivi, Tuomo Suortti, Finnish Meteorological Institute
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Meteorologisches Observatorium Lindenberg
LAUTLOS
FLASH,
RS-80 A
Heavy payload configuration
17 UT, with NOAA and
FLASH
RS-92
FN-90, Lindenberg, raw RS-90
NOAA, RS-80 H
SnowWhite
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Rigel Kivi, Tuomo Suortti, Finnish Meteorological Institute
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Meteorologisches Observatorium Lindenberg
LAUTLOS
RS-90
Light weight payload configuration
11:30 UT and 17 UT
without NOAA/FLASH
Battery package
RS-80 A
FN-90, Lindenberg,
RS-90
SnowWhite
RS-92
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Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Date
29 Jan 04
30 Jan 04
31 Jan 04
01 Feb 04
02 Feb 04
03 Feb 04
04 Feb 04
05 Feb 04
06 Feb 04
07 Feb 04
08 Feb 04
09 Feb 04
10 Feb 04
11 Feb 04
12 Feb 04
13 Feb 04
14 Feb 04
15 Feb 04
16 Feb 04
17 Feb 04
550K
in
edge
in
out
filaments
filaments
CFH
FLASH, SZA 98deg
NOAA
FLASH
LearJet 17:15
2 NOAAs, NyAlesund
FLASH
+ Sodankyla
LearJet 17:15
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
18 Feb 04
19 Feb 04
20 Feb 04
21 Feb 04
22 Feb 04
23 Feb 04
24 Feb 04
25 Feb 04
edge
NOAA
FLASH
NOAA rec
NOAA rec
CFH evening
FLASH rec
FLASH rec
FLASH rec
MW
MW
MW
MW
MW
MW
MW
MW
NOAA new
FLASH new
MW
14
MW
MW
31
NOAA
NOAA
CFH
FLASH
FLASH
FLASH
FLASH rec
in
NOAArec
opening meeting
out
NOAA
Thursday
edge
edge
edge
closing
meeting
26 Feb 04 1:30 PM
Friday
Saturday
27 Feb 04
CFH
28 Feb 04 departure
FLASH
14
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FLASH
LearJet
mo+evening
LearJet 17:15
LearJet 17:15
LearJet 9:00 LT ?
6
MW
MW
MW
MW
MW
MW
MW
MW
MW
MW
MW
MW
MW
MW
MW
MW
MW
MW
MW
MW
11:30 UT
daytime
daytime
daytime
daytime
daytime
daytime
daytime
17:30 UT
nightime
nightime
nightime
nightime
nightime
nightime
nightime
daytime
daytime
daytime
daytime
nightime
nightime
nightime
nightime
daytime
daytime
daytime
nightime
nightime
nightime
Rigel Kivi, Tuomo Suortti, Finnish Meteorological Institute
nightime
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15
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Notes to the abbrevations:
T [°C]
-140 -130 -120 -110 -100 -90
-80 -70
-60
-50
-40 -30
-20
-10
12
Tai
Tsw
SATi
11
10
9
92 - Vaisala RS92 advanced sonde
using polymer and factory calibration
SWw - Meteolabor Snow White dew/frostpoint
NOa
mirror sonde with condensated water at the mirror
8
7
H [km]
FN - Lindenberg reference sonde using
polymer and FN method
SWi - Meteolabor Snow White dew/frostpoint
mirror sonde with sublimated/frozen ice at the mirror
FN
NOd
SWi
6
5
NOa - NOAA/CFH frostpoint mirror sonde with
sublimated/frozen ice at the mirror, ascent data
4
NOd - NOAA/CFH frostpoint mirror sonde with
sublimated/frozen ice at the mirror, descent data
3
2
SWw
92
SATi - RH related to water for ice saturation
1
(only dependent of Tai)
0
0
10
20
30
40
50
60
70 80
RH [%]
90
100 110 120 130
Fig.1: Comparison of nighttime FN-SW-92-NO relative humidity profiles in the Arctic
troposphere in the height range 0.18 - 12 km, Sodankylä, 15.02.04, 17:25 ascent.
Details are presented in Fig.2 (0 - 2 km), Fig.3 (2 - 4 km), Fig.4 (4 - 6 km), Fig.5 (6 - 8 km),
Fig.6 (7 - 10 km) and Fig.7 (9 - 12 km).
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Tai - air temperatur measured with F-Thermocap at
the FN-sonde (modified RS90 sensor) and Vaisala
factory calibration
Tsw - Snow White mirror surface temperature
Ulrich Leiterer, Meteorologisches Observatorium Lindenberg
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T [°C]
-20
2
-15
-10
-5
0
5
NOa
92
III
H [km]
1.4
1.2
15
SATi
IV
1.8
1.6
10
FN
II
1
SW w
0.8
Tsw
0.6
I
Tai
0.4
0.2
0
40
50
Fig. 2: Details (0-2 km)
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60
70
80
90
100
110
RH [%]
Ulrich Leiterer, Meteorologisches Observatorium Lindenberg
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T [°C]
-70
-65
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
50
60
70
80
90
100
110
120
4
3.8
IV
Tai
Tsw
3.6
SATi
H [km]
3.4
3.2
3
III
SWi
2.8
2.6
2.4
92
SWw
NOa
FN
II
2.2
I
2
10
20
30
Fig. 3: Details (2-4 km)
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40
RH [%]
Ulrich Leiterer, Meteorologisches Observatorium Lindenberg
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T [°C]
-75
-70
-65
-60
-55
-50
-45
-40
-35
-30
-25
50
60
70
80
90
100
6
5.8
NOd
NOa
SW i
92
FN
IV
5.6
H [km]
5.4
5.2
III
5
4.8
II
4.6
4.4
Tai
Tsw
SATi
I
4.2
4
0
10
20
Fig. 4: Details (4-6 km)
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30
40
RH [%]
Ulrich Leiterer, Meteorologisches Observatorium Lindenberg
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Meteorologisches Observatorium Lindenberg
T [°C]
-85
-80
-75
-70
-65
-60
-55
-50
-45
-40
-35
50
60
70
80
90
100
8
7.8
III
7.6
Tai
Tai
Tsw
Tsw
SATi
SATi
H [km]
7.4
7.2
II
7
6.8
NOd
FN
92
SW i
NOa
6.6
6.4
I
6.2
6
0
10
20
Fig. 5: Details (6-8 km)
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30
40
RH [%]
Ulrich Leiterer, Meteorologisches Observatorium Lindenberg
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Meteorologisches Observatorium Lindenberg
T [°C]
-80
-75
-70
-65
-60
-55
-50
-45
50
60
70
10
tropopause
9.5
II
H [km]
9
SATi
Tai
Tsw
FN
92
SW i
NOd
NOa
8.5
8
I
7.5
7
0
10
Fig. 6: Details (7-10 km)
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20
30
40
RH [%]
Ulrich Leiterer, Meteorologisches Observatorium Lindenberg
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-130
12
-110
T [°C]
-90
-70
-50
15
20
Tai
Tsw
11.5
I
FN
92
11
H [km]
SW i
NOa
10.5
NOd
10
tropopause
9.5
9
0
Fig. 7: Details (9-12 km)
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5
10
RH [%]
Ulrich Leiterer, Meteorologisches Observatorium Lindenberg
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