EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Overview of the IBER-STILLING project: Assessment and attribution of wind speed and wind gust variability

Cesar Azorin-Molina1,2, Manola Brunet3, Enric Aguilar3, Jose A. Guijarro4, Amir A. Safaei Pirooz5, Richard G.J. Flay5, Lorenzo Minola2, Gangfeng Zhang2,6,7, Joan-Albert Lopez-Bustins8, Tim R. McVicar9,10, and Deliang Chen2
Cesar Azorin-Molina et al.
  • 1Spanish National Research Council (CSIC), Centro de Investigaciones sobre Desertificacion, Moncada (Valencia), Spain (
  • 2Regional Climate Group, Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden
  • 3University Rovira i Virgili, Tarragona, Spain
  • 4State Meteorological Agency, Balearic Islands Office, Palma de Mallorca, Spain
  • 5Department of Mechanical Engineering, The University of Auckland, Auckland, New Zealand
  • 6State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, China
  • 7Academy of Disaster Reduction and Emergency Management, Ministry of Civil Affairs and Ministry of Education, Beijing Normal University, Beijing, China
  • 8Climatology Group, Department of Geography, University of Barcelona, Barcelona, Spain
  • 9CSIRO Land and Water, Canberra, ACT, Australia
  • 10Australian Research Council Centre of Excellence for Climate Extremes, Canberra, ACT, Australia

In a context of global climate change, the scientific community has evidenced a significant decrease in wind speed, a phenomenon known as «stilling». This climate trend has mainly been observed over mid-latitude continental surfaces since the 1980s. On the contrary, other studies have detected an increase in wind speed over ocean surfaces; and there is little conclusive scientific evidence on trends in wind speed across the troposphere. Furthermore, a reversal in global terrestrial stilling has recently been documented in few regional and global studies since the 2010s. The causes associated with the climate variability of wind speed have not yet been resolved and there are many uncertainties behind the «stilling» and «recovery» phenomenon because neither the quantity nor the quality of wind speed observations is adequate. This contribution shows an overview of the IBER-STILLING project (RTI2018-095749-A-I00) funded by the Spanish Ministry of Science, Innovation and Universities.  This project aims to move forward on the assessment of wind speed and wind gusts variability and underlying causes globally, with emphasis on the Spanish territory and surrounding ocean (Atlantic) and sea (Mediterranean) surfaces. The IBER-STILLING project will collect and generate climate information of wind speed from different data sources; climate data will be subject to a comprehensive protocol for quality control and homogenization. The statistical analysis of these climate databases will allow characterizing trends and climatic cycles of wind speed, allowing a pioneering global analysis of wind speed over continental and ocean surfaces, and across the boundary layer and the entire troposphere. The project will also conduct wind-tunnel experiments to quantify biases introduced by anemometers devices. 

How to cite: Azorin-Molina, C., Brunet, M., Aguilar, E., Guijarro, J. A., Safaei Pirooz, A. A., Flay, R. G. J., Minola, L., Zhang, G., Lopez-Bustins, J.-A., McVicar, T. R., and Chen, D.: Overview of the IBER-STILLING project: Assessment and attribution of wind speed and wind gust variability, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-5056,, 2020

Display materials

Display file

Comments on the display material

AC: Author Comment | CC: Community Comment | Report abuse

Display material version 1 – uploaded on 30 Apr 2020, no comments