Theoretical and Applied Climatology

, Volume 81, Issue 3–4, pp 231–261 | Cite as

BUBBLE – an Urban Boundary Layer Meteorology Project

  • M. W. Rotach
  • R. Vogt
  • C. Bernhofer
  • E. Batchvarova
  • A. Christen
  • A. Clappier
  • B. Feddersen
  • S.-E. Gryning
  • G. Martucci
  • H. Mayer
  • V. Mitev
  • T. R. Oke
  • E. Parlow
  • H. Richner
  • M. Roth
  • Y.-A. Roulet
  • D. Ruffieux
  • J. A. Salmond
  • M. Schatzmann
  • J. A. Voogt
Article

Summary

The Basel UrBan Boundary Layer Experiment (BUBBLE) was a year-long experimental effort to investigate in detail the boundary layer structure in the City of Basel, Switzerland. At several sites over different surface types (urban, sub-urban and rural reference) towers up to at least twice the main obstacle height provided turbulence observations at many levels. In addition, a Wind Profiler and a Lidar near the city center were profiling the entire lower troposphere. During an intensive observation period (IOP) of one month duration, several sub-studies on street canyon energetics and satellite ground truth, as well as on urban turbulence and profiling (sodar, RASS, tethered balloon) were performed. Also tracer experiments with near-roof-level release and sampling were performed. In parallel to the experimental activities within BUBBLE, a meso-scale numerical atmospheric model, which contains a surface exchange parameterization, especially designed for urban areas was evaluated and further developed. Finally, the area of the full-scale tracer experiment which also contains several sites of other special projects during the IOP (street canyon energetics, satellite ground truth) is modeled using a very detailed physical scale-model in a wind tunnel. In the present paper details of all these activities are presented together with first results.

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Copyright information

© Springer-Verlag/Wien 2005

Authors and Affiliations

  • M. W. Rotach
    • 1
    • 12
  • R. Vogt
    • 2
  • C. Bernhofer
    • 3
  • E. Batchvarova
    • 4
    • 7
  • A. Christen
    • 2
  • A. Clappier
    • 5
  • B. Feddersen
    • 6
  • S.-E. Gryning
    • 7
  • G. Martucci
    • 9
  • H. Mayer
    • 8
  • V. Mitev
    • 9
  • T. R. Oke
    • 10
  • E. Parlow
    • 2
  • H. Richner
    • 1
  • M. Roth
    • 11
  • Y.-A. Roulet
    • 5
  • D. Ruffieux
    • 12
  • J. A. Salmond
    • 13
  • M. Schatzmann
    • 6
  • J. A. Voogt
    • 14
  1. 1.Swiss Federal Institute of Technology, Atmospheric and Climate Science, IAC-ETHZurichSwitzerland
  2. 2.University of Basel, Institute for Meteorology, Climatology and Remote SensingBaselSwitzerland
  3. 3.University of DresdenGermany
  4. 4.Bulgarian National Institute of Meteorology and HydrologyBulgaria
  5. 5.Swiss Federal Institute of Technology, Laboratory of Air and Soil Pollution, LPAS-EPFLSwitzerland
  6. 6.Meteorology DepartmentUniversity of HamburgGermany
  7. 7.Department for Wind EnergyRisø National LaboratoryDenmark
  8. 8.University of Freiburg, Meteorological InstituteGermany
  9. 9.Observatory of NeuchatelSwitzerland
  10. 10.Geography DepartmentThe University of British ColumbiaCanada
  11. 11.Geography DepartmentThe National University of SingaporeSingapore
  12. 12.Swiss Federal Office of Meteorology and ClimatologyMeteoSwissSwitzerland
  13. 13.Geography DepartmentBirmingham UniversityEngland
  14. 14.Geography DepartmentUniversity of Western OntarioCanada

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