Journal cover Journal topic
Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union

Journal metrics

  • IF value: 2.989 IF 2.989
  • IF 5-year<br/> value: 3.489 IF 5-year
    3.489
  • CiteScore<br/> value: 3.37 CiteScore
    3.37
  • SNIP value: 1.273 SNIP 1.273
  • SJR value: 2.026 SJR 2.026
  • IPP value: 3.082 IPP 3.082
  • h5-index value: 45 h5-index 45
doi:10.5194/amt-2017-12
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
23 Jan 2017
Review status
This discussion paper is under review for the journal Atmospheric Measurement Techniques (AMT).
Wind turbine impact on operational weather radar I/Q data: characterisation and filtering
Lars Norin Atmospheric Remote Sensing Unit, Research Department, Swedish Meteorological and Hydrological Institute, Norrköping, Sweden
Abstract. For the past two decades wind turbines have been growing in number all over the world as a response to the increasing demand for renewable energy. However, the rapid expansion of wind turbines presents a problem for many radar systems, including weather radars. Wind turbines in line-of-sight of a weather radar can have a negative impact on the radar's measurements. As weather radars are important instruments for meteorological offices, finding a way for wind turbines and weather radars to co-exist would be of great societal value.

Doppler weather radars base their measurements on in-phase and quadrature phase (I/Q) data. In this work a month worth of recordings of high resolution I/Q data from an operational Swedish C-band weather radar are presented. The impact of point targets, such as masts and wind turbines, on the I/Q data is analysed and characterised. It is shown that the impact of point targets on single radar pulses is manifested as a distinct and highly repeatable signature. The shape of this signature is found to be independent of the size, shape, and yaw angle of the wind turbine. It is further demonstrated how the robustness of the point target signature can be used to identify and filter out the impact of wind turbines in the radar's signal processor.


Citation: Norin, L.: Wind turbine impact on operational weather radar I/Q data: characterisation and filtering, Atmos. Meas. Tech. Discuss., doi:10.5194/amt-2017-12, in review, 2017.
Lars Norin
Lars Norin
Lars Norin

Viewed

Total article views: 196 (including HTML, PDF, and XML)

HTML PDF XML Total BibTeX EndNote
139 42 15 196 8 13

Views and downloads (calculated since 23 Jan 2017)

Cumulative views and downloads (calculated since 23 Jan 2017)

Viewed (geographical distribution)

Total article views: 196 (including HTML, PDF, and XML)

Thereof 196 with geography defined and 0 with unknown origin.

Country # Views %
  • 1

Saved

Discussed

Latest update: 30 Mar 2017
Publications Copernicus
Download
Short summary
Wind turbines in line-of-sight of a weather radar can have a negative impact on the quality of the radar's measurements. Wind turbine echoes have proven difficult to filter due to their complex and time-varying nature. In this work we present recordings of high resolution low level data from a Swedish weather radar. A characteristic and robust signature from wind turbines is found. A simple wind turbine filter is presented and applied to the recorded data.
Wind turbines in line-of-sight of a weather radar can have a negative impact on the quality of...
Share