Climate Change and Change in flood and erosion risk The village of - PowerPoint PPT Presentation

Greg Guthrie R oyal HaskoningDHV Climate Change and Change in flood and erosion risk

The village of Fairbourne has grown over the last Explain how these changes impact on century, developing over the low lying land within the management. estuary. As development occurred so the need for defence grew. The key risks being managed are: � Rainfall from the high ground flowing through the rivers through the area. � Flood risk from water levels within the estuary. � Pressure of erosion and overtopping from along the open coast. � Ground water, the level of the natural water table. These risk are being managed at present. With Climate Change these pressures will change.

�� Natural every day variation in water levels and rainfall The tide Mean sea level Each day, variation every 14 days between springs and neaps Neap Tides Spring Tides �� Statistical analysis. On average. But can occur at any time.

�� !�� "��"�� #�� Higher water levels – larger waves 30% to 40% increased rainfall by 2070 to 2089 Present day return T20 T100 periods Level m OD 3.9m 4.1m Future (+0.5m) T1 T2 return period Over the next 100 yrs, the rise is likely to be between 0.5m and 2m.

�� With 0.3m sea level rise With 0.75m sea level rise With 0.5m sea level rise Present day With 1m sea level rise �� $�%&'�*�� $�%&'�*�� $�%&'�*�� $�%&'�(�� $�%&'�*�� (#��) ��(#��+�� (#��) ��) (#��) %&'!��)� Flood risk from rivers 6 hrs 5 hrs Period of tidal locking at 2.35m OD Ground level in relation to mean With increased rainfall and increased tidal locking, there is high water (MHW) increased risk of flooding.

Flood risk from the Ground water estuary The recent work to the embankment have significantly improved the defence > 1:100 Ground water is as expected responding both 0.5m SLR – 0.5m freeboard to rainfall events and the tide. Present day - 1m on T100. freeboard on T100. MHWS. Sea level rise reduces Ground water is this standard of being monitored. defence

Higher water levels – larger waves – greater overtopping

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Climate Change and Change in flood and erosion risk The village of - PowerPoint PPT Presentation

Greg Guthrie R oyal HaskoningDHV Climate Change and Change in flood and erosion risk The village of Fairbourne has grown over the last Explain how these changes impact on century, developing over the low lying land within the management.

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Climate Change and Change in flood and erosion risk The village of - PowerPoint PPT Presentation

Greg Guthrie R oyal HaskoningDHV Climate Change and Change in flood and erosion risk The village of Fairbourne has grown over the last Explain how these changes impact on century, developing over the low lying land within the management.

EVALUATING COASTAL FLOOD RISK ADAPTATION IN THE CONTEXT OF CLIMATE CHANGE IN SURABAYA, INDONESIA

Risk Management and Climate Change DR DR. AD ADELLE TH THOMAS CLIMATE CHANGE ADAPTATION AND

and Action Plan Sedon, Lao PDR RBP team Sombath Disaster Management Malabu Climate Change

Adaptation to Climate Change Adaptation to Climate Change Impact in China Impact in China - A

1st Part. Climate change, both a risk and a biomarker of human self-inflicted sickness Bernard

SEA-LEVEL RISE &amp; FLOOD RISK MONITORING Mark A. Merrifield , Director Center for Climate Change

Preparing for Sea Level Rise Climate Change Adaptation Strategy Update Council Presentation //

Lesson Plan: Signs of Climate Change Session 1 What exactly is climate change? Climate change

RISK MANAGEMENT AND CLIMATE CHANGE LAW IN LAO PDR National Workshop on Disaster and Climate

The economics of climate change C C 175 Christian Traeger Ch i ti T Part 5: Risk and

Ontarios Climate Change Adaptation Approach James Scott, Manager Climate Change Policy Branch

CLIMATE CHANGE Impacts, Vulnerabilities and EPA WHAT IS CLIMATE CHANGE? noun a long-term change

Impacts in Eastern Massachusetts Why Consider Climate Change? Climate change amplifies existing

FLOOD MANAGEMENT AND ADAPTATION TO CLIMATE CHANGE Mapping of Vulnerabilities &amp; Coping

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Climate Change Issues in Bangladesh &amp; Need for Adaptation to Climate Change Dr. Fazle Rabbi

Climate Change as Risk? Dr. phil. Dr. rer. nat. Rafaela

Climate Change Climate Change Why haven't we done more? Sam Crawley Victoria University of

SEA-LEVEL RISE & FLOOD RISK MONITORING Mark A. Merrifield , Director Center for Climate Change

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