Systematic lidar measurements of water vapor at Jungfraujoch

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Systematic lidar measurements of water vapor at
Jungfraujoch V. Simeonov, B. Calpini, H. van den
Bergh I. Balin, P. Ristori, R. Nessler,

• Lidar parameters
• Measurements
• -Water vapor
• -Relative humidity
• -Comparison with radiosonde, GPS, PFR
• -Special events
• Future plans
• EARLINET

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Jungfraujoch multiwavelength lidar
Water vapour Vibrational Raman 408 nm and
387nm Temperature Pure-rotational Raman
Relative humidity profile Aerosol Elastic
channels Aerosol extinction _at_ 355, 532, 1064
nm Aerosol backscatter _at_ 355 and 532 nm Raman
channels Vibrational_at_ 387nm, 408nm,
607nm Pure-rotational excitation l 532 nm 4
channels from Stokes and Anti Stokes
bands Transmitter NdYAG 400 mJ _at_ 1064 nm /100
Hz Receiver 20 cm F/4 Newtonian telescope
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Water vapor mixing ratio and temperature profiles
Snow white sonde
SRS 400 (hygristor)
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Lidar and radiosonde (SRS 400) measurements
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Lidar GPS and PFR integrated water vapor
measurements
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Water vapor mixing ratio and relative humidity
profiles
Dry Oct. May
Wet and layered
High boundary layer
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High boundary layer
H2O vertical profiles
H2O horizontal profiles
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High boundary layer - aerosol
ABL daytime
RL nighttime
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Water flow rate and water temperature measured
at Massen
August
April
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Future plans
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European Aerosol Research LIdar NETwork EARLINET

• GOALS
• Creating a comprehensive database of the vertical
  aerosol distribution over Europe
• Quantification of the aerosol load, its radiative
  properties, sources, sinks and long range
  transport

• GOALS
• Creating a comprehensive database of the vertical
  aerosol distribution over Europe
• Quantification of the aerosol load, its radiative
  properties, sources, sinks and long range
  transport

Water vapor
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Water vapour Raman lidar at IMAA-CNR Tito Scalo
(POTENZA) Italy
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Water vapour Raman lidar at IMAA-CNR Tito Scalo
(POTENZA) Italy
DAY TIME CONDITIONS
5 September 2002
Typical vertical resolutions between 15 m and
300 m. Maximum height range about 5000
m. Statistical errors within 10 up to about
3000 m height and within a maximum of 50 at
5000 m.
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Water vapour Raman lidar at IMAA-CNR Tito Scalo
(POTENZA) Italy
Typical vertical resolutions between 15 m and
300 m. Maximum height range about 12000
m. Statistical errors within
10 up to about 7000 m height and within a
maximum of 25 at 12000 m.
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Summary

• Raman lidar water vapor mixing ratio nigthtime
  profiles up to 10-11000 m
• since 2000
• Raman lidar relative humidity and temperature
  profiles since 2002
• Water vapor mixing ratio and temperature profiles
  compared with radiosonde measurements
• The integrated water vapor column compared with
  GPS and PFR data
• 4 EARLINET stations ready to contribute to COST
  723 action