Karl Bolin, Dr.Tech.


Department of Aeronautical and Vehicle Engineering
KTH Royal Institute of Technology
SE-100 44 Stockholm, Sweden


+46-70-628 33 42

Academic history

Karl has since an early age been interested in physics, especially mechanics, and history. His first University courses included history which he pursued in between his military service as second in command at a troop transport ship. In 1998 he started to study Engineering Physics with sub-track Applied physics at Uppsala University and graduated in 2003. In November the same year he started his PhD studies at KTH/Marcus Wallenberg Laboratory. In 2009 he finished his PhD thesis named “Wind turbine noise and background sound- Masking, Propagation and Modeling” focusing on how our perception of wind turbine noise interact with natural sounds, creating numerical models for different natural sounds and also investigating sound propagation. After that he started working as a researcher in the laboratory mainly in a project focusing on sound propagation from turbines and another project investigating sound quality aspects of aircraft noise. He has also worked with sound quality aspects from wind turbine noise and the soundscape in rural areas. In 2010 he received an appointment as assistant professor at KTH and has since been a visiting researcher in Trondheim at NTNU in 2012. His teaching at KTH is mainly a course in signal and system analysis for future vehicle engineers and he also gives guest lectures in wind turbine noise and computational atmospheric acoustics.

Publications in peer-reviewed journals

  • K. Bolin (2009), Prediction method for wind-induced vegetation noise, Acta Acustica united with Acustica, 75, 607-619.
  • K Bolin, M. Boué, I. Karasalo (2009), Long range sound propagation over a sea surface, Journal of Acoustical Society of America, 126, 2191-2197.
  • K. Bolin, M. E. Nilsson, S. Khan (2010), The Potential of Natural Sounds to Mask Wind Turbine Noise, Acta Acustica united with Acustica, 96, 131-137.
  • K. Bolin and M. Åbom (2010), Air-borne sound generated by sea waves, Journal of Acoustical Society of America, 127, 2771-2779.
  • M. E. Nilsson, J. Alvarsson, M. Rådsten-Ekman, K. Bolin (2010), Auditory Masking of Wanted and Unwanted Sounds in a City Park, Noise Control Engineering Journal, 58, 524-531.
  • K. Bolin, G. Bluhm, G. Eriksson and M. E. Nilsson (2011), Infrasound and low frequency noise from wind turbines: exposure and health effects, Environmental. Reearchs. Letters. 6.
  • K. Bolin, A. Kedhammar, M. E. Nilsson, (2012), The Influence of Background Sounds on Loudness and Annoyance of Wind Turbine Noise, Acta Acustica united with Acustica, 98, 741-748.

Proceedings and reports

  • K. Bolin, Masking of wind turbine sound by ambient noise, Licentiate thesis, Trita/AVE 2006:86, ISSN 1651-7660, November 2006.
  • K. Bolin, Wind turbine noise and natural sounds- masking propagation and modeling, Doctoral thesis, Trita/Ave 2009:19, ISSN 1651-7660, April 2009.
  • K. Bolin and M. Åbom, Wind Turbines- Environmental Impact: Noise Emissions, chapter in Encyclopedia of Sustainability Science and Technology, Springer  Science + Business Media.

Presentations at conferences

  • Wind Turbine Noise 2005, Berlin, Masking of Sound from Wind Turbines by Vegetation Noise.
  • Wind Turbine Noise 2007, Lyon, Masking of wind turbine noise by sea waves.
  • Wind Turbine Noise 2007, Lyon, Investigating the audibility of wind turbines in the presence of vegetation noise.
  • ASA/EAA 2008, Paris, Models of natural background noise and masking of wind turbine noise (invited speaker).
  • Scandinavian symposium on Physical Acoustics, 2009, Finse, Long range sound propagation over a sea surface.
  • Wind Turbine Noise 2011, Rome, Wind turbine noise exposure in a complex terrain.
  • IQPC 2012, Bremen, State-of-art sound propagation.
  • CWE 2013, Stockholm, Sound propagation from wind turbines, what does state-of-art predictions reveal?
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