Pierre OZER 1 , Yvon-Carmen HOUNTONDJI 2 , Florence DE LONGUEVILLE 3

Slides:

Advertisements

Similar presentations

AIACC Asia Regional Workshop Session C2: Water Resources, Watersheds, Coasts (Bangkok, ) Vulnerability and Adaptive Capacity in the Archipelagoes.

Advertisements

Climate Change: Science and Modeling John Paul Gonzales Project GUTS Teacher PD 6 January 2011.

What should happen to the Holderness coastline? Learning Objective: To practice decision making skills required for the SDME in June 2014.

The perfect storm…  Feeding growing population  Diminished ecosystem goods and services  A warmer & more urban world  Energy scarcity  Limitations.

Future Impacts to Land Subject to Coastal Storm Flowage Julia Knisel Coastal Shoreline & Floodplain Manager.

Climate Change D McRae 14 October 09. Climate forum Our climate is always changing and is influenced by both natural variability and human induced changes.

Coastal Risk Assessment studies: The problem of the scales through 3 examples Borja G. Reguero /

=h&om=0&z=11&ll= , &spn= , Sargent Beach,

Risks and effects of Sea Level Rise on Coastal Peoples and Ecosystems in the Gulf of Mexico Region by Chris Beal Jessica DeBiasio Peter Spartos Sarah Wilkins.

Protecting our Health from Climate Change: a Training Course for Public Health Professionals Chapter 2: Weather, Climate, Climate Variability, and Climate.

The vulnerability to climate change of Cotonou (Benin):

1 Sustainable Management of Scarce Resources in the Coastal Zone Wp 09: Regional case study: TUNISIA SMARTSMART.

TECHNOLOGY FOR ADAPTATION TO CLIMATE CHANGE IN COASTAL ZONES Richard J.T. Klein 1,2 1. Potsdam Institute for Climate Impact Research, Germany 2. Stockholm.

Coastal Erosion in West Africa. The Issues n Rapid erosion of around 8 m per year n Affects a 2000 km stretch of coastline from Ivory Coast to Nigeria.

Eurosion and Conscience projects - brief overview Tom Bucx (Deltares) 9 June 2011 EEA Expert meeting Methods and tools for assessing.

Coastal Zones and Processes

Monitoring of topographic change on the coastal area Jinah Eom 1,2, Jong-Kuk Choi 1, Joo-Hyung Ryu 1, Joong-Sun Won 2 1 Korea Ocean Satellite Center, Korea.

Climate 2010 Gary Strand High Performance Network Planning Workshop.

A PRESENTATION ON SEA-LEVEL RISE AND COASTAL SUBMERGENCE ALONG THE SOUTH –EAST COAST OF NIGERIA BY SAVIOUR P. UDO-AKUAIBIT INSTITUTE OF NATURAL RESOURCES,

Global warming and sea level rise: Public discourse vs. the science of climate change Dr Harun Rashid Emeritus Professor Department of Geography and Earth.

Assessing the Benefits of Levees: An Economic Assessment of U.S. Counties with Levees Ezra Boyd Geography Graduate Student Louisiana State University Research.

"Geography." Infoplease. Infoplease, n.d. Web. 15 Mar

FLANDERS HYDRAULICS RESEARCH FLEMISH ADMINISTRATION - DEPARTEMENT OF MOBILITY AND PUBLIC WORKS Sea level rise and its danger for the Belgian coast ir.

Temporal and spatial patterns of basin scale sediment dynamics and yield.

Presentation Title Capacity Building Programme on the Economics of Adaptation Supporting National/Sub-National Adaptation Planning and Action Sea Level.

International Conference on Climate Change Impact of Sea Level Rise on storm surge in Hong Kong and the Pearl River Delta by WONG, Agnes K.M. LAU, Alexis.

Sediment dynamics and increasing anthropogenic pressure: ways forward? Discussion workshop Flanders Hydraulics. Antwerp, Belgium 1.

Spatial Planning for Future New Jersey Coastal Hazards Coastal Sustainability Symposium Urban Coast Institute 9/10/08.

Mark N. Mauriello NJAFM Past Chair. COASTAL STORM HAZARD VULNERABILITY FACTORS SEA LEVEL RISE EXPANDING FLOOD HAZARD AREAS INCREASING FLOOD HEIGHTS NEGATIVE.

Examining Coastal Change in Levy County Sean Reiss and Kevin Szatmary University of Florida, Department of Urban and Regional Planning.

1 Vladimir Smakhtin, Luna Bharati, Nilantha Gamage August, 2007 PLANNING WATER TRANSFERS IN KRISHA RIVER BASIN: TECHNICAL FEASIBILITY AND ENVIRONMENTAL.

The Contribution of Alaska's Glaciers to Global Sea Level Rise

Climate Change: Evidence. Climate Change is not a new thing The worlds climate has been changing over the last 18,000 years, sometimes getting hotter.

Weather and Climate. Introduction Before the end of June 2011, the National Oceanic and Atmospheric Administration (NOAA) officially declared the year.

Coasts Coastal classification based on tectonic activity

A. SATHY NAIDU Institute of Marine Science University of Alaska Fairbanks CLIMATE CHANGE EFFECTS ON THE ALASKAN COASTAL ENVIRONMENT AND COMPARABLE ASPECTS.

Louisiana Coastal Elevations Slides from Prof. Roy Dokka.

Beaches and Coastal Environments of Washington Southern WA Coast – sandy beaches, spits, lagoons, sediment supply from Columbia River, northward longshore.

Climate Trends Along the St. John River Water, Lands & Communities: Adapting to Climate Change along the St. John River November 30, 2015 Jeff Hoyt NB.

Rande Kamolz Tyler Huntley GEOG 4401/5401 Soils Geography Fall 2007 – Univ of Colorado, Boulder.

Coastal development and climate change in SA

Schematic framework of anthropogenic climate change drivers, impacts and responses to climate change, and their linkages (IPCC, 2007).

CLIMATE CHANGE, SEA-LEVEL RISE and CALIFORNIA’S COAST Gary Griggs Director Institute of Marine Sciences University of California Santa Cruz.

Climate Change 101: A New Jersey Perspective Anthony J. Broccoli Co-Director, Rutgers Climate Institute Department of Environmental Sciences Rutgers University.

ESA Climate Change Initiative Sea-level-CCI project A.Cazenave (Science Leader), G.Larnicol /Y.Faugere(Project Leader), M.Ablain (EO) MARCDAT-III meeting.

Sea Level Rise Signs of Change. Reasons for Rise  As ocean water warms, it expands and takes up more space, forcing sea level to rise.

Aerial view of the Copper River Delta, Alaska

Making Sense of Climate Change, Part 2:

Introduction to Climate Change Adaptation

Introduction to Climate Change Adaptation

Paper by K. L. Laidre, R. J. Jameson, D. P

“With the contribution of the Life Programme of the European Union”

Ibrahim Amidu MESc Candidate, 2016

Coastal Depositional Landforms

EROSION OF THE COASTS National High School “D’Annunzio- Romani”

RESULTS AND DISCUSSION

New Jersey’s Changing Climate

Coastal Impacts Due to Sea-Level Rise

Climate Change in Nigeria

APPROACHES, METHODS AND TOOLS FOR CLIMATE CHANGE IMPACT, VULNERABILITY

Misconceptions about Flood Coverage

Hans von Storch, Institute of Coastal Research

GALVESTON ISLAND GEOHAZARDS MAP

Coastal Environments Introduction

Instrumental Surface Temperature Record

Future Inundation Frequency of Coastal Critical Facilities

Fig. 3 Coastal accretion rates.

California Science Project

Presentation transcript:

Pierre OZER 1 , Yvon-Carmen HOUNTONDJI 2 , Florence DE LONGUEVILLE 3 Recent evolution of the coastline in the Gulf of Guinea. Example of Togo and Benin (2000-2015) Pierre OZER 1 , Yvon-Carmen HOUNTONDJI 2 , Florence DE LONGUEVILLE 3 1 Département des Sciences et Gestion de l’Environnement / Hugo Observatory, Université de Liège, Belgium, pozer@ulg.ac.be 2 Département Aménagement et Gestion des Ressources Naturelles, Université de Parakou, Benin 3 Département de Géographie, Université de Namur, Belgium Introduction The land-sea interface is an extremely fragile environment. On a global scale, coastlines are threatened by a multitude of factors sometimes natural and mostly anthropogenic. Thus, in addition to the disruptions to coastal areas by port facilities, dams, sediment sampling on the beach or urban sprawl, there are the consequences of climate change, including rising sea levels. Objective Assessing recent trends (between 2000 and 2015) of the coastline in Togo and Benin where more localized studies show that sandy beaches are experiencing major changes (accretion or erosion) in recent decades. Where? Method Coastal dynamics is analyzed using very high spatial resolution images available in open access on Google Earth; the coast is studied by section of 1 km on a coastline of 170 km (pk1 to pk170) by calculating the average change in meter per year since 2000. BENIN TOGO Cotonou NIGERIA Lomé GHANA 50 km Results Population dynamics v Lomé Cotonou TOGO TOGO BENIN BENIN GHANA NIGERIA TOGO 2002 2002 2002 2015 2014 2014 Relative stability (change <1m / year) of the coastline following the construction of coastal protection works (pk 45). Beach accretion (+260 m between 2002 and 2015) upstream of the harbor of Lomé. Beach erosion (-120 m between 2002 and 2014) 12 km downstream of the harbor of Cotonou. Conclusion Analysis of coastal Togo and Benin shows that only 34% of the coastlines (often protected) are stable and that accretion is recorded only upstream of harbor infrastructures (14%). Elsewhere, coastlines undergo erosive processes (52%) exceeding annual average retreats of 10 m / year. In such conditions, villages have disappeared during the past decade and a large number of people have been displaced.