Mar 272012
 

All data of 2011 from our weather radar IDRA can now be downloaded via the 3TU.Datacentre.
The data is freely available under the CESAR database policy.

Here are some of the events captured by IDRA in 2011 to illustrate the variety of data collected:

December 26th, 2011

IDRA reflectivity measurement of fog

Measurement of weak meteorological  echoes, possibly drizzle.

June 28th, 2011

IDRA Reflectivity measurement, 2011-06-28

Strong precipitation due to the passage of a cold front over the Netherlands.
Note the line of weak echoes close to the radar (in the center of this figure). This line is probably due to insects that are lifted in the air as a result of an up-draught.


June 27th, 2011

IDRA reflectivity measurement of insects        IDRA Doppler velocity measurement of insects

An IDRA measurement of insects. The figure on the right which shows the Doppler velocity measurement demonstrates that insects are a very good tracer for air motion.

Overall, the online available IDRA data for 2011 comprise:

  • data from 349 days,
  • during 554 hours IDRA measured moderate or strong precipitation echoes,
  • beside the processed data also 6863 raw data files are available.
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