Storm throw hazard

Potential and real storm damage risk for the tree species groups Beech/Oak, Spruce, Fir/Douglasie, Pine/Larch and other tree species. A mean storm strength was assumed to be comparable to the national average of Sturm Lothar in 1999, but at the same intensity even throughout the state. An empirical-statistical model was used to calculate storm damage probabilities (Schmidt et al. 2010). The real storm damage risk refers to the real tree species deposits today as well as real tree heights obtained from aerial images. The real risk of storm damage can be used to classify the current threat of existing forest stocks and thus to determine the urgency for forest conversion. The real storm damage risk is thus included in the vulnerability calculation. The potential risk of storm damage refers to so-called standard trees per tree species group, i.e. trees of average height and diameter, so that it can be compared between tree species. The potential storm damage risk is used to support tree species selection and is included in the calculation of tree species suitability.