Full text of this article is only available in PDF format.

Heli Peltola, Jorma Aho, Alpo Hassinen, Seppo Kellomäki, Matti Lemettinen

Swaying of trees as caused by wind: analysis of field measurements.

Peltola H., Aho J., Hassinen A., Kellomäki S., Lemettinen M. (1993). Swaying of trees as caused by wind: analysis of field measurements. Silva Fennica vol. 27 no. 2 article id 5505. https://doi.org/10.14214/sf.a15666

Abstract

Measurements of wind and subsequent swaying of two Scots pines (Pinus sylvestris L.) were made at stand edge conditions. The horizontal windspeed was measured ten meters outside of the stand edge for four heights using cup anemometers. The compass directions were determined using a directional vane placed above the canopy. Tree swaying was measured by accelerometers at xy-coordinates. The shape of the wind profile at the stand edge varied to some degree depending on windspeed, but the form was a logarithmic one. Swaying of trees increased along with increasing windspeed. Furthermore, swaying was more or less irregular in relation to xy-coordinates, but it occurred, however, mainly perpendicularly to the direction of mean windspeed. The maximum bending of trees to the direction of mean windspeed varied also only little for various gusting windspeeds (average windspeed of 20 seconds) and dynamic wind loads. The maximum bending of trees was also in most cases less or equal to those predicted on the basis of static wind loads, when the mean windspeed for static load is taken as equal to the gusting windspeed.

The PDF includes an abstract in Finnish.

Keywords
Pinus sylvestris; windspeed; wind loads; dynamic load; bending; wind

Published in 1993

Available at https://doi.org/10.14214/sf.a15666 | Download PDF

Creative Commons License

Register
Click this link to register for Silva Fennica submission and tracking system.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Your search results
Pikkarainen L., Luoranen J. et al. (2020) Comparison of planting success in one-year-old s.. Silva Fennica vol. 54 no. 1 article id 10243
Levkoev E., Mehtätalo L. et al. (2018) Development of height growth and frost hardiness.. Silva Fennica vol. 52 no. 3 article id 9980
Zubizarreta-Gerendiain A., Pellikka P. et al. (2012) Factors affecting wind and snow damage of indivi.. Silva Fennica vol. 46 no. 2 article id 441
Gregow H., Peltola H. et al. (2011) Combined occurrence of wind, snow loading and so.. Silva Fennica vol. 45 no. 1 article id 30
Lukkarinen A.J., Ruotsalainen S. et al. (2010) Survival, height growth and damages of Siberian .. Silva Fennica vol. 44 no. 5 article id 120
Kellomäki S., Maajärvi M. et al. (2010) Model computations on the climate change effects.. Silva Fennica vol. 44 no. 2 article id 455
Leban J.-M., Peltola H. et al. (2009) Preface Silva Fennica vol. 43 no. 3 article id 462
Nuutinen T., Kilpeläinen A. et al. (2009) Future wood and fibre sources – case North Karel.. Silva Fennica vol. 43 no. 3 article id 202
Ikonen V.-P., Kellomäki S. et al. (2009) Sawn timber properties of Scots pine as affected.. Silva Fennica vol. 43 no. 3 article id 197
Zubizarreta Gerendiain A., Peltola H. et al. (2009) Growth and wood property traits in narrow crowne.. Silva Fennica vol. 43 no. 3 article id 194
Gort J., Zubizarreta Gerendiain A. et al. (2009) Differences in fibre properties in Scots pine (P.. Silva Fennica vol. 43 no. 3 article id 193
Peltola H., Gort J. et al. (2009) Differences in growth and wood density traits in.. Silva Fennica vol. 43 no. 3 article id 192
Lukkarinen A.J., Ruotsalainen S. et al. (2009) The growth rhythm and height growth of seedlings.. Silva Fennica vol. 43 no. 1 article id 215
Gregow H., Puranen U. et al. (2008) Temporal and spatial occurrence of strong winds .. Silva Fennica vol. 42 no. 4 article id 231
Zubizarreta Gerendiain A., Peltola H. et al. (2008) Differences in growth and wood properties betwee.. Silva Fennica vol. 42 no. 3 article id 247
Peltola H., Kilpeläinen A. et al. (2007) Effects of early thinning regime and tree status.. Silva Fennica vol. 41 no. 3 article id 285
Zeng H., Pukkala T. et al. (2007) Application of ant colony optimization for the r.. Silva Fennica vol. 41 no. 2 article id 299
Peltola H., Miina J. et al. (2002) Effect of early thinning on the diameter growth .. Silva Fennica vol. 36 no. 4 article id 523
Nykänen M.-L., Broadgate M. et al. (1997) Factors affecting snow damage of trees with part.. Silva Fennica vol. 31 no. 2 article id 5618
Peltola H., Aho J. et al. (1993) Swaying of trees as caused by wind: analysis of .. Silva Fennica vol. 27 no. 2 article id 5505
Peltola H., Kellomäki S. (1993) A mechanistic model for calculating windthrow an.. Silva Fennica vol. 27 no. 2 article id 5504