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Coastal erosion and climate change

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Information about Coastal erosion and climate change
Science-Technology

Published on November 8, 2009

Author: Dr_Dave

Source: authorstream.com

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Coastal erosion and climate changeImplications for the shoreline over the next century : Coastal erosion and climate changeImplications for the shoreline over the next century David Petley Wilson Professor Durham University http:daveslandslideblog.blogspot.com Structure of the talk : Structure of the talk General introduction to landslides Climate change Future forecasts of climate change for the UK Climate change and coastal erosion – the SMP view A new approach to measuring coastal erosion What does this mean for future rates of activity? What next? Conclusion Fatal landslides: 2006, 2007 and 2008 : Fatal landslides: 2006, 2007 and 2008 Cumulative number of fatalities since September 2002 : Cumulative number of fatalities since September 2002 Kashmir earthquake-induced landslides Wenchuan earthquake-induced landslides Other disasters 2002-2009 (CRED database) Earthquake: 429,877 Flood: 37,860 Storm: 166,410 Volcano: 221 The UK and world coastline : The UK and world coastline Mainland length = 17,820 km Including islands = 31,370 km Approx. 75% of world coastline is formed from cliffs Slide 6: Graph from New Scientist Carbon dioxide is the main cause : Carbon dioxide is the main cause Data: HadCrut (University of East Anglia), NOAA “The world hasn’t warmed for ten years”Not true : “The world hasn’t warmed for ten years”Not true With 2009 (to date) : With 2009 (to date) 2008 and 2009 monthly temperaturesNot climate – this is weather! : 2008 and 2009 monthly temperaturesNot climate – this is weather! Climate change : Climate change Graphic and data: IPCC 2007 UKCIP 2009 : UKCIP 2009 UKCIP 2009 : UKCIP 2009 NE Coast : NE Coast Coastal cliffs : Coastal cliffs Draft shoreline management plan (SMP2) estimation of future erosion at Cowbar : Draft shoreline management plan (SMP2) estimation of future erosion at Cowbar Effects of future sea level rise : Effects of future sea level rise NE Coast SMP2 (2008) says: (Royal Haskoning) Slide 19: http://sealevel.colorado.edu/results.php Sea level rise : Sea level rise Slide 24: Measuring erosion properly Point cloud : Point cloud Measurement of large failure events : Measurement of large failure events Slide 30: Measuring change on a rockface Results: Cliffs : Results: Cliffs NERC seismometer array : NERC seismometer array The base of the cliff : The base of the cliff Typical seismic data vs tidal cycle : Typical seismic data vs tidal cycle Typical seismic data vs tidal cycle : Typical seismic data vs tidal cycle Additional time for wave impacts with sea level rise : Additional time for wave impacts with sea level rise Typical seismic data vs tidal cycle : Typical seismic data vs tidal cycle Additional time for wave impacts with sea level rise : Additional time for wave impacts with sea level rise Revised shoreline management plan : Revised shoreline management plan Slide 43: CLIFF TOP Wind, PPT, Temp, RH, Radiation, Micro-seismics, Piezometers CLIFF MID-POINT (48m OD) Near Surface: 3D wind, PPT, Temp, RH, Radiation Water: Height Slide 45: Moisture Conclusions : Conclusions

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