Journal article
Tree-ring analysis and natural hazard chronologies; minimum sample sizes and index values
The professional geographer, Vol.39(1), pp.41-47
1987
DOI: 10.1111/j.0033-0124.1987.00041.x
Abstract
Tree-ring dating is employed to reconstruct chronologies of occurrence for a variety of natural hazards. The number of trees sampled varies greatly as does the minimum number of tree-ring responses. The number of trees to be sampled and an acceptable tree-ring response index should be dictated by the nature and geographical extent of the specific hazard under study. Repetitive sampling of different numbers of 30 avalanche-damaged trees showed significant differences in number of tree-ring responses over a 55-year-period. More sampling and use of a higher minimum response index allowed greater confidence in the chronology constructed from tree-rings and compared to historical records. Three geographic scales of analysis that can confound tree-ring responses are identified, and three guidelines for choosing sample size, given variations in processes, are suggested.
Details
- Title: Subtitle
- Tree-ring analysis and natural hazard chronologies; minimum sample sizes and index values
- Creators
- David ButlerGeorge P. Malanson - University of IowaJack Oelfke
- Resource Type
- Journal article
- Publication Details
- The professional geographer, Vol.39(1), pp.41-47
- DOI
- 10.1111/j.0033-0124.1987.00041.x
- ISSN
- 0033-0124
- eISSN
- 1467-9272
- Language
- English
- Date published
- 1987
- Academic Unit
- Geographical and Sustainability Sciences
- Record Identifier
- 9983557270402771
Metrics
43 Record Views