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Long time ago …

Development of Harmonised Indicators and Estimation Procedures for Forests with Protective Functions against Natural Hazards in the Alpine Space Introduction and Overview. Long time ago …

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Long time ago …

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  1. Development of Harmonised Indicators and Estimation Procedures for Forests with Protective Functions against • Natural Hazards in the • Alpine Space • Introduction and Overview

  2. Long time ago … A group of young and fearless scientists tried to cross the Alpine Space. After a one week‘s walk without any stop, freezing and suffering from thirst and hunger … they decided to define common indicators to describe their hopeless situation in a harmonized way. In case they have not died - they are still alive … and live in harmony

  3. National Forest Inventory Experts Natural Hazard Experts/Modellers Forest Remote Sensing Experts • The main idea: Merging expertise from

  4. NFI NH RS WSL BFW • The consortium: Cema gref BOKU LWF Gozdis IFN

  5. Main Objective: to explore the possible contribution of the National Forest Inventories (NFIs) and other forest monitoring systems to assess the protective functions of forests in the alpine space

  6. Operational Objectives: • to identify and derive the protective effect • to detect protection forests • to select indicators or proxies • to define thresholds • to verify the possibilities of combining field data with RS techniques

  7. H D P • General approach: • Three system components Hazard Potential Damage Potential Protective effect

  8. General approach: H P D

  9. Which Hazard processes?

  10. Hazard process: Avalanche

  11. Hazard process: Avalanche

  12. Hazard process: Rockfall

  13. Hazard process: Rockfall

  14. Hazard process: Landslide

  15. Which scales: • Coarse scale approach • Coarse scale mapping • Coarse scale statistical • Fine scale approach

  16. Coarse scale mapping: • Mapping of protective effect • Indirect use of NFI plot data • Landsat imagery • also cross-boarder

  17. Coarse scale statistical: • Frequencies of protective effect • Direct use of NFI plot data • Large areas • Landsat imagery • only for avalanche hazard

  18. Fine scale: • Single valleys • Indirect use of NFI information • high resolution RS techniques • laser scanning • digital aerial photographs

  19. Harmonized Indicators and Thresholds • Depend on • Hazard type (A, R, L) • System component (H, D, P) • Scale (coarse and fine) • Availability (NFI - Remote Sensing – other sources)

  20. Working Steps: Forest mask Hazard potential Forest with potential protective function Damage potential Forest with protective function Protective effect

  21. Outside the scope: Results and maps concerning the three system parts hazard potential, damage potential and protective effect, which are developed within ProAlp cannot be interpreted as concrete natural hazard indication mapping or risk zone planning

  22. Inside the scope: The intention of ProAlp is a science based development of indicators and procedures to evaluate the protective effect of forests. Delivered maps and figures are examples for the capability of the developed methods. Delivered maps and figures are examples for the capability of the developed methods.

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