IDRC International Disaster and RiskConference<br />DAVOS 02/06/2010<br />French – German flood risk geohistoryin the Rhin...
Introduction<br />Topic <br />Teams<br />French,  German <br />Interdisciplinary work<br />
1. Studied area <br />South Rhine Graben<br />Homogeneous…<br />…with borders <br />40km <br />France <br />Germany <br />...
1. Studied area <br />Land of wars<br />1870 <br />1914 – 1918<br />1939- 1945<br />Changes <br />Administration<br />Lang...
1. Studied area <br />Lack of memories / informations<br />Destructions <br />Losses<br />Unacessibility<br />
2. Stakes (crossed – stakes) <br />Filling the gaps in the knowledge of the floods in France and in Germany<br />Building ...
3. Methods<br />Simultaneous actions (FRA – GER)<br />Archives study <br />Floods<br />Landuse <br />Climate <br />Connect...
4. Analysis <br />Comparisons <br />Differentscales (time / space)<br />France – Germany<br />River systems<br />Cities on...
5. Results  <br />Floods<br />1400 – 2010 :<br />691 events (FRA)<br /> 453 events (GER)<br />France<br /> by Rivers<br />...
5. Results  <br />15th<br />16th<br />17th<br />18th<br />19th<br />20th<br />21th<br />Chronology  <br />overflows 1480 –...
Example (flood of 1910)  <br /><ul><li>WHY ?
 Not known ?
 Forgotten ?
 Underestimated ?
 Differencies (FRA – GER) ?</li></ul>Flood of 1910 (Paris flood)  <br />Known as “the biggest one”...<br />...Only on the ...
Example (flood of 1910)<br />Archives problem ? No : many archives on both sides of the Rhine<br />Elsässer Kurier 20/01/1...
Example (flood of 1910)<br />Climatic differencies ? <br />17 - 18 januar :<br />   60cm snow cover<br />18 - 19 januar :<...
january<br />(february)<br />(november)<br />Murg<br />Kleine Enz<br />Nagold <br />Neckar<br />january<br />Breg<br />Bri...
January
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French – German flood risk geohistory in the Rhine Graben

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French – German flood risk geohistory in the Rhine Graben

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French – German flood risk geohistory in the Rhine Graben

  1. 1. IDRC International Disaster and RiskConference<br />DAVOS 02/06/2010<br />French – German flood risk geohistoryin the Rhine Graben(1400 – 2010)<br />Brice MARTIN, Romain ANSEL, Karine DIETRICH–CHENELOuarda GUERROUAH, Marie-Claire VITOUX, Lauriane WITH (CRESAT, Mulhouse)<br />Axel DRESCHER, Rüdiger GLASER, Iso HIMMELSBACH, Johannes SCHÖNBEIN<br />(IPG, Freiburg)<br />French – german program ANR – DFG TRANSRISK 2008 - 2010<br />
  2. 2. Introduction<br />Topic <br />Teams<br />French, German <br />Interdisciplinary work<br />
  3. 3.
  4. 4. 1. Studied area <br />South Rhine Graben<br />Homogeneous…<br />…with borders <br />40km <br />France <br />Germany <br />Vosges <br />Black Forrest<br />.<br />1424<br />.<br />1493<br />Swiss <br />
  5. 5. 1. Studied area <br />Land of wars<br />1870 <br />1914 – 1918<br />1939- 1945<br />Changes <br />Administration<br />Languages<br />
  6. 6. 1. Studied area <br />Lack of memories / informations<br />Destructions <br />Losses<br />Unacessibility<br />
  7. 7. 2. Stakes (crossed – stakes) <br />Filling the gaps in the knowledge of the floods in France and in Germany<br />Building a common geohistory of the floods<br />Optimizing the prevention and the information about the floods, <br />Understanding the role of rivers developments responsible for different floods evolution on both sides of the Rhine<br />Contributing to the implementation of flood risk observatories on a French – German basis<br />Contributing to define a common interdisciplinary vocabulary on risks (and a french – german – english glossary )<br />
  8. 8. 3. Methods<br />Simultaneous actions (FRA – GER)<br />Archives study <br />Floods<br />Landuse <br />Climate <br />Connecting the actors <br />Investigations on memories and perceptions<br />
  9. 9. 4. Analysis <br />Comparisons <br />Differentscales (time / space)<br />France – Germany<br />River systems<br />Cities on each river system<br />Districts in eachcities<br />Contextualisation<br />Classification<br />Maping<br />Oldevents / extremevents<br />risks<br />Database / website<br />
  10. 10. 5. Results <br />Floods<br />1400 – 2010 :<br />691 events (FRA)<br /> 453 events (GER)<br />France<br /> by Rivers<br />Germany<br />
  11. 11. 5. Results <br />15th<br />16th<br />17th<br />18th<br />19th<br />20th<br />21th<br />Chronology <br />overflows 1480 – 2009 Rhine graben <br />France / Germany<br />
  12. 12. Example (flood of 1910) <br /><ul><li>WHY ?
  13. 13. Not known ?
  14. 14. Forgotten ?
  15. 15. Underestimated ?
  16. 16. Differencies (FRA – GER) ?</li></ul>Flood of 1910 (Paris flood) <br />Known as “the biggest one”...<br />...Only on the french side...<br />...not taken into account<br />
  17. 17. Example (flood of 1910)<br />Archives problem ? No : many archives on both sides of the Rhine<br />Elsässer Kurier 20/01/1910<br />
  18. 18. Example (flood of 1910)<br />Climatic differencies ? <br />17 - 18 januar :<br /> 60cm snow cover<br />18 - 19 januar :<br /> SW flow<br /> Temperature (5° at 1.000m)<br /> heavay rainfall (192mm / 24h)<br /> total snow melt<br />19 - 20 januar :<br /> NW flow<br /> temperature (-5° at 1.000m)<br /> heavy snowfall (50cm)<br />
  19. 19. january<br />(february)<br />(november)<br />Murg<br />Kleine Enz<br />Nagold <br />Neckar<br />january<br />Breg<br />Brigach<br />Donau<br />Wutach<br />january<br />(february)<br />(november)<br /><ul><li>1910 = 4 different floods !
  20. 20. January
  21. 21. high water : everywhere
  22. 22. overflows : french side</li></ul>Much more archives on french side<br />
  23. 23. ?<br />January 1910 :<br /><ul><li>Huge damages only on the french side</li></ul>Fribourg<br />Bâle<br />
  24. 24. Destructive floods in Mulhouse<br />Destructive floods in all the Ill basin<br />Destructive floods in Mulhouse<br />Destructive floods in all the Ill basin<br />1910<br />
  25. 25. Example (flood of 1910)<br />overflows 1480 – 2009 Rhine graben <br />France / Germany<br />15th<br />16th<br />17th<br />18th<br />19th<br />20th<br />21th<br />Disconnection after 1880 (human factors, local aspects)<br />1910<br />
  26. 26. Conclusion <br />Interest / advantages<br /><ul><li> long time analysis
  27. 27. crossed analysis
  28. 28. interdisciplinary
  29. 29. transboundary</li></ul>European Directive 2007/60/EC <br />on the assessment and management of flood risks<br />
  30. 30. Thanks a lot for your attention<br />

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