r m i b i b s a m p i r o b c for hemistry abstract 2. inter...
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0.700.750.800.850.900.951.001.051.101.151.201.25
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INTER-TECHNIQUE COMPARISON OF INTEGRATED WATER VAPOUR MEASUREMENTS FOR CLIMATE CHANGE ANALYSIS
±
R. Van Malderen (1), H. Brenot (2), E. Pottiaux (3), K. Mies (4), S. Beirle (4), T. Wagner (4), C. Hermans (2), M. De Mazière (2), H. De Backer (1) and C. Bruyninx (3)
(1) Royal Meteorological Institute of Belgium, Brussels, Belgium, (2) Belgian Institute for Space Aeronomy, Brussels, Belgium, (3) Royal Observatory of Belgium, Brussels, Belgium, (4) Max Planck Institute for Chemistry (MPI-C), Mainz, Germany EGU GENERAL ASSEMBLY
22-27 APRIL 2012 – VIENNA, AUSTRIA
REFERENCES AND ACKNOWLEDGEMENTS
ROYAL OBSERVATORY OF BELGIUM
ROYAL METEOROLOGICAL INSTITUTE OF BELGIUM
BELGIAN INSTITUTE FOR SPACE AERONOMY
MAX PLANCK INSTITUTE FOR CHEMISTRY
1. INSTRUMENTS AND DATASETS
2. INTER-TECHNIQUE COMPARISONS
3. CONCLUSIONS AND PERSPECTIVES
ABSTRACT
GLOBAL NAVIGATION SATELLITE SYSTEMS RADIOSONDES CIMEL SUN PHOTOMETERS GOME II / SCIAMACHY / IASI
TS all instrument @
Uccle •
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SOLAR-SLANT IWV COMPARISONS @ BRUSSELS
EXPLOITATION OF THE IWV DATASETS @ BRUSSELS WORLD-WIDE EXPLOITATION OF IWV DATASETS ZTD TO IWV CONVERSION
INSTRUMENT COLOCATION: FOCUS ON BRUSSELS
SOLAR-TERRESTRIAL CENTRE OF EXCELLENCE
INTERNATIONAL GNSS SERVICE NOAA (NATIONAL
OCEANIC AND ATMOSPHERIC
ADMINISTRATION)
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2 Ground-Based Instruments
1 In-Situ Instrument
3 Satellite-Based Instruments
Technique Spatial Coverage Temporal Resolution Time Span Tech. Costs All Weather / All Direction By Product of An Analysis
GNSS ± 350 IGS sites every 5 minutes 1995-now low Yes / Yes Yes
Radiosonde ± 1500 sites on average twice/day 1950s-now low to moderate Yes / Vertical Profile No
CIMEL Sun Photometers ± 300 sites ± 15 min, depending on weather conditions
1993-now moderate clear sky only / solar direction needed
No, but focus on aerosol properties retrieval
GOME(2)/SCIAMACHY Global maximum once/day 1996-now very high only if (almost) cloud free/nadir No
GPS-RS80 GPS-RS9x
GPS-CIMEL GPS-GOME
GPS-CIMEL GPS-RS GPS-GOME(2)/SCIAMACHY
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ZTD
MET STA 1
MET STA N
Psurf, Tsurf, Tm
ZHD & ZWD
IWV
…
Q factor
0
10000
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30000
40000
50000
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CIMEL RS GOME/SCIAMACHY
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-6
-4
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* We dispose of weather data with 10 minutes of time resolution only since 1999.