0° 1° E 2° E Kouffo Sakété Adjohoun ! ! Lokossa Allada ! ! Athiémè Tagbligbo ! Dangbo ! Bopa ! ! Akpro-MissérétéAvrankou ! ! Mono Adjara ! Barrage BENIN Sè Nangbeto ! Tori-Bossito Ouèdème-Péda ! ! !Porto-Novo Abomey-Calavi Ganvié Lac Ahémé ! Akodéha ! Kpomasse ! Aguégué ! Lac Nokoué ! Tohouè Vo Ativé Zooti Comé Djérèbé! Kevé Tsevie ! ! Atitogon Kétonou ! ! ! ! ! Agatogbo! ! ! TOGO Akoumapé Agbanto Ekpé Kpodji-Agué Vo Afouinmé ! ! ! ! ! Kraké Ouidah !Sèmè-Kpodji! Hahatoé Vo Koutimé ! ! Gbéhoué ! ! Avlékété Haho Aklakou ! Vogan Anfoin ! ! ! Djégbadji ! Zio Ganavé Djondji Sevagan ! ! COTONOU ! Wogba Avlo ! ! Noépé ! ! Glidji Djablé Akoda ! Agoué Grand-Popo Aképé ! ! Dzodze ! ! Togoville ! ! ! Lebe ! ! Aného ! ! Agbodrafo Gbodjomé Kpong ! Aflao Volta Denu Barrage ! LOME EAM - GEOME, EOS.D2C - Environment and Development Network - www.eco-evaluation.org Akossombo Akatsi ! ! Adiome ! Sogakope Tsiame ! ! Anyako Dabala ! 7° N ! 7° N Atiavi Keta Lagoon ! GHANA Kasseh ! Keta ! Songaw Lagoon Big-Ada ! Oyibi ! Anloga Lolonya ! ! Palm Point ! Ada-Foah Strogboe ! ! Dzita ! ! Old Ningo Lekpoguno New Ningo ! ! ! Prampram ! Grove Point Tema Bontrase ! Asafo ! ACCRA Oduponkpehé ! ! Swedru Accra Point Afranse ! ! Bortianor Nyanyano Buduburam ! ! Feté ! Fete Point Awutu Senya ! Beraku Point Winneba ! Winneba Point Apam ! Apam Point Mumford ! REGIONAL SHORELINE MONITORING STUDY AND Babli Point DRAWING UP A MANAGEMENT SCHEME FOR ! !Akra Tantum THE WEST AFRICAN COASTAL AREA TYPOLOGY OF SEA FRONTS 1 - MUD OR SANDY COAST REGULARLY West African COVERED BY THE TIDE Economicand Monetary Union 1A- Apparent coastline of mangroves materialised by continuous barrier of trees Country borders CARTOGRAPHY OF GEODYNAMIC ANALYSIS SEDIMENTOLOGY - LITHOLOGY 1B- Apparent coastline with discontinuous border o ROAD NETWORK f mangroves and/or coastal mudflats SANDY FORMATIONS Major road 1C- Apparent coastline typified by thin fringe of S- Dune rims and recent terraces 6° N mangroves adjacent to locally rocky and/or Minor road 6° N solid hill topography Tertiary road CONTINENTAL SHELF AND LOCATION OF MAP Sd - Smoothed dune formations Dykes (North of Dakar) Railway 2 - SANDY OR SILT COAST LOCATED IN Sct - Anciejnt sandy terraces 1:500 000 SCALE NATURALLY HIGHLY UNSTABLE SITES URBAN AREAS (South of Dakar) 0 5 km 2A- Sandy or silt coast associated with mangroves Dense urban fabric Sh -Hydromorphic terraces 20 km 50 km and not covered by the tide Loose urban fabric Sc -"Dior" type sands Mauritanie 2B- Coastline of islets, sandbanks and insular splits N Very loose urban fabric NW NE Ghana2/2 2/2 INTRUSIVE, METAMORPHIC Ghana 2C- Estuary and coastal river littoral zones Togo 1/1 Open space ROCKS W E Togo 1/1 1/1 Non discriminated P - Weathered granirte and BeninBénin 1/1 3 - SANDY COAST WITH STRAIGHT LONGITUDINAL urban areas metamorphic rock, with seams SW SE ORIENTATION OF Sénégal of harder rock in places PROFILE Hub intersection SEDIMENTARY DEPOSITS S Sheet 9/9 3A- Sandy coast with straight longitudinal profile, absence Pr - Solid rocks : Coastal drift Niger of back-lagoons, depressions or channels parallel to the HYDROGRAPHY quartzite, gabbro,basalt. shore less than 2km from the shoreline River mouths Mali Graduated water system Guinée Burkina Faso Tidal flows Bissau 3B- Sandy coast with straight longitudinal profile, presence WEATHERED SEDIMENT of back-lagoons, depressions or channels parallel to the Water body lagoon FORMATIONS WITH INCLUSIONS shore (500m to 2km from the shoreline) Guinée OF HARDPAN AND RESISTANT ROCK Benin Dam reservoir 3C- Sandy coast with straight longitudinal profile, presence INDICATIVE BATHYMETRY of back-lagoons, depressions or channels parallel to the K - Clay, sandy, pebbly materials 0 to 5 meters shore (less than 500m from the shoreline) WETLANDS AND MARSHES from lipmestone and marno- limestone to ferruginous Sierra Leone Alluvial plains cuirasses 5 to 10 meters 4 - SANDY AND ROCKY COAST IN STEPS Nigeria Tb -Sans to clay materials from (Headlands and coves) Hydromorphic alluvial plains the "terre de barres" formation 10 to 20 meters Libéria Côte d'Ivoire Ghana Togo 4A- Wide coves with a low radius of curvature Undifferentiated wetlands Shoals Gr - Sandy materials from more 4B- Frequent rocky headlands Sand-mud banks Salt marshes (sebkhras) or lessweathered sandstone # Margins of salt marshes (sebkhras) Reefs -shoals 5 - ROCKY COAST Ct - Loose or partially consolidated pre-quaternary sediment formations Isolated shoals of under 20m situated seaward Bathymetry Mangroves of the main 20m isobath are not schown. 0 m 250 m This cartography is a working document provided for illustrative purposes only and is not intended to be used as a substitute for official topographic or hydrographic documents. Maritime country borders are not shown, as the boundary delimitation has no legal standing. 0° 1° E 2° E.