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Karlsruhe Boundary Layer Measurement Tower

Access

UNRESTRICTED

This data set is only available for a restricted user group, please contact us if you want to access these data.

RESTRICTED only accessable in CEN/MPI net or via CliSAP login  What does that mean?

Datenzugriff via Filesystem: /data/icdc/atmosphere/weathermast_karlsruhe

 

Description

The Karlsruhe Institute of Technology (KIT), Institute of Meteorology and Climate Research is operating a 200m tall weather tower since 1972 (see photography above). Additionally, standard meteorological parameters and near-surface radiative fluxes are measured.

At the tower measurements are carried out at altitudes of 2m, (10m), 20m, 30m, 40m, 50m, 60m, 80m, 100m, 130m, 160m, and 200m allowing atmospheric boundary layer studies. Measured parameters are wind speed and direction, air temperature and humidity; not all parameters are measured in all given altitudes, only for those altitudes given in bold font all parameters are available. A list of the parameters measured at the tower and the site in general is given here.

Most of the sensors sample data every minute. We do not offer these original data. Available via ICDC are daily mean values. If you require data at finer temporal resolution please contact Martin Kohler. You can learn more about the Karlsruhe weather tower and take a glimpse at the actually measured values if you click here.

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Parameters

Name Unit since year
air temperature [2m, 10m, 30m, 60m, 100m, 130m, 160m 200m] °C 1973
relative humidity [2m, 10m, 30m, 100m, 200m] % 1973
wind speed [2m, 20m, 30m, 40m, 50m, 60m, 80m, 100m, 130m, 160m, 200m] m/s 1973
cumulative incident shortwave radiation [10m] W/m² 1973
precipitation amount mm 1973

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Coverage, spatial and temporal resolution

Time period and temporal resolution:

  • 01-01-1973 until 05-31-1973
  • daily (hourly on request)

Spatial coverage and resolution:

  • Local, Karlsruhe, Germany
  • Geographic latitude: 49° 5' 33'' N
  • Geographic longitude: 8° 25' 33'' O
  • Spatial resolution: none, vertical profile
  • Altitude (location itself is 110.4 m a.s.l.) 2m, 10m, 20m, 30m, 40m, 50m, 60m, 80m, 100m, 130m, 160m, 200m

Format:

  • ASCII


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Data quality

The data set does not contain uncertainty estimates.

The majority of the data are direct measurements anyways so that the accuracy of the sensors is more important in this context. Still a quality control is and has been carried out with the data set.

Note that for the daily averages offered from this web portal about 50% of the measurements of one day needed to be available and of sufficient quality. Otherwise no daily average was computed.

A documentation about the different sensors and sensor types used is in preparation and foreseen to be available in 2014.

Note: In the precipitation data 0.0 mm means both: no precipitation occurred or precipitation occurred but its amount was below what can be measured.

Please contact Martin Kohler for more details.

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Contact

Martin Kohler
Karlsruher Institut für Technologie (KIT), Institut für Meteorologie und Klimaforschung
email: martin.kohler (at) kit.edu 
phone: +49-721-608-23995

Stefan Kern
ICDC / CEN / University of Hamburg
email: stefan.kern (at) uni-hamburg.de
phone: +49-40-42838-2415

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References

Data citation

In case you use this data for a presentation, a study, a thesis or a scientific article please contact Martin Kohler for correct citation.

Also please add: Data for xyz (the used parameters) for ttt (time period) were obtaind from ICDC, CliSAP/KlimaCampus, University of Hamburg, icdc.cen.uni-hamburg.de/weathermast_karlsruhe/

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