Welcome to the colloquium : Results and perspectives of oceanographic researches in Africa dedicated to the Tropical Atlantic and the Gulf of Guinea

Transcription

1 Welcome to the colloquium : Results and perspectives of oceanographic researches in Africa dedicated to the Tropical Atlantic and the Gulf of Guinea October 25-29, 2010 Conference Center «Chant d Oiseau», Cotonou, BENIN Thanks to the sponsors: FSP-RIPIECSA (PROPAO) IRD ( Department of Information & Communication, DIC) TOTAL ( convention with UPS, UAC & IRD for the Master 2) LEGOS & his director Yves dupenhoat ( special funding) Also, thanks to IRD-Cotonou administration for his precious help (Laurence Quilichini, Chancel Konate )

2 A few words about the 2010 rainy season case in West Africa: In Benin: About 60 deads, due to flood or house collapses; destroyed houses, More than sinistred people, More than out of houses, 40% of rice/horn production destroyed Cholera. (idem in Nigeria, Ghana, Togo!...). Extreme case? climatic change? Gulfe of Guinea sea water warming? La Niña? Coastal cities flooded as rain water goes to sea With sea level rise => more flooded cities!

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4 T(z) Equatorial section from PIRATA ATLAS buoys (oct.2010) Positive T anomalies over The whole upper layers, + in the west at 100m depth

5 Long term trend of SST increase? => How about Sea Level?

6 Long term trend of SLA increase?

7 Climate changes <=> sea level rise and coastal erosion Cotonou, December 2009 & August 2010 (Photos: C.Duos & B.Bourlès, IRD) About 30m/year in some locations along the northern coasts of the GG Sea level rise Source: GIEC, 2007

8 Potential impacts of 1m sea level rise along the GG northern coast: Present level Ghana Togo Benin Nigeria Present level + 1 meter Most of the population + economy (ports) + agriculture (salt in the groundwater naps).

9 So what??? Importance of such climate/ocean studies & programs Importance of coastal observations & regional collaborations Importance of data sharing & common meetings Importance of capacity building Importance of communication!!! (for deciders & governments eg: coastal environment, management & cities, water resources, coastal agriculture )

10 IMPORTANT meeting / colloquium: Meeting as the last one of PROPAO Colloquium as new programs have to be drawn (relative to different priority topics for the Atlantic Africa; eg coastal environment, resources, climate) Colloquium as place of presentations, discussions, exchanges and sharings + Meeting number «0» for the new (supported by IRD) JEAI program

11 A few general information: All sessions will be held at this place Coffee breaks and lunches taken in charge by the colloquium If any problem for hotels etc please let us informed If absent for some lunches/coffee breaks, please let us informed Trips reimbursements, per diem and administrative processes at IRD (for those concerned) from tomorrow morning (one driver will be there) Gala diner on Thursday (Infosec, from 19h).

12 Programme : Day 1 : Monday October 25, h : Group picture & press. => NOW Then just a few changes + -12h30 : lunch break. -14h00 : -Presentation of the presently running or planed research programs related to oceanography -a) Running programms : (Chairman : Yves dupenhoat) -Bernard Bourlès (IRD, CRHOB, Bénin): PIRATA, AMMA/EGEE, TACE - Christophe Messager (LPO, France): LMI ICEMASA, PIRATA SEE - Roger Djiman (CRHOB, Benin): PROPAO - Jacques Abé and/or Roger Djiman (CRHOB, Benin): GCLME & FAO programmes - Angora Aman (LAPA-MF, Côte d Ivoire): ODINAFRICA - Jean Folack (CERECOMA, Cameroun) : IOC/UNESCO - Isabelle Niang (UCAD, Senegal): ACCP -16h30 : coffee break. - 17h00 : presentations continuation b) Planned programmes and other collaborations : (Chairman : Yves dupenhoat) - Saïdou Sall (UCAD, Senegal): LMI ECLAIRS - Yves Kouadio (LAPA-MF, Côte d Ivoire) : JEAI ALOC-GG - Regina Folorunsho & Gboyega Adjao (NIOMR, Nigeria): Nigeria/USA, report of the «Workshop on Marine Hazards in the Gulf of Guinea» - Kwasi Appeaning Addo (DOF, Ghana) : Ghana/USA relationships, works on coastal erosion - Magloir-Désiré Mounganga (CNDIO, Gabon), Gabon/USA relationships - Arona Diedhiou (IRD, France): AMMA-Africa, AMMA2, LMI SPLASH

13 Day 2 : Tuesday October 26, 2010 (morning) - 8h30 : Presentation of capacity building & formation/research (doctoral schools, technical and financial supports on specific projects) linked to oceanography in Atlantic/Africa. (Chairman : Nicholas Hall) - Norbert Hounkonnou, Nick Hall & Bernard Bourlès (UAC/UPS/IRD): regional M2 of physical oceanography and applications in Cotonou, Bénin, - Christophe Messager (UCT/ACCESS/South Africa) : MSc sciences of earth climatic system, - Saïdou Sall & Bamol Ali Sow (UCAD/ Senegal) : Masters METOC, MOGMA et Ziguinchor, - Pr Nwaokoro (UNILAG/Nigeria) : MSc&PhD of biological oceanography, marine pollution, coastal environment, - A.K.Armah (DOF/Ghana), MSc&PhD of biological & chemical oceanography and marine geosciences, - Angora Aman (LAPA-MF, Côte d Ivoire) : formation programmes related to oceanography at the Cocody University, - Jean Folack (CERECOMA, Cameroon) : formation programmes in Cameroon, -Magloir-Désiré Mounganga (CNDIO, Gabon), formation programmes in Gabon -10h30 : coffee break. - 11h : Presentation of numerical tools and products, useable for regional studies : (Chairman : Nicholas Hall) - Yves DuPenhoat (IRD, France): Mercator and its applications in the tropical Atlantic ; - Vamara Koné (CRO, Côte d Ivoire): application of the ROMS model to Gulf of Guinea, - Bamol Ali Sow (Univ.Ziguinchor, Senegal): application of the ROMS model to the Senegal-Mauritania upwelling, - Adama Diawara (LAPA-MF, Côte d Ivoire): Regional Atmospheric Model (MAR) - Sylvain Ouillon (IRD, France) : examples of coastal and sedimental model applications. -Nathacha Djath (CIPMA, Bénin): high resolution numerical model of the Salomon Sea (NEMO); PhD proposal - 12h30 : lunch break.

14 Day 2 : Tuesday October 26, 2010 (afternoon) - 14h30 : - Presentation of scientific results and studies a) equatorial and coastal upwellings : (Chairman : Bernard Bourlès) - Bamol Ali Sow & Saïdou Sall (Senegal): the Senegal-Mauritania upwelling, - Christophe Messager (LPO, France): Study of the air-sea exchanges over the Benguela upwelling, - Elisée Toualy (LAPA-MF, Côte d Ivoire): Contribution to the study of the Gulf of Guinea coastal upwelling. - Cyrille Akuetevi (CIPMA, Bénin): description of the currents off the northern coasts of the Gulf of Guinea from in situ observations of the EGEE & PIRATA cruises, - Yves dupenhoat (IRD, France): Analysis of the mixed layer heat balance in the Gulf of Guinea - 16h00 : coffee break. - 16h30 : Presentation of scientific results and studies (continuation) b) open sea ocean and climate : (Chairman : Bernard Bourlès) - Angora Aman (LAPA-MF, Côte d Ivoire): climatological Analysis of the relationships between the sea surface temperature and coastal precipitations in the Gulf of Guinea, - Yves Kouadio (LAPA-MF, Côte d Ivoire): SST and wind observed trends SST in the tropical Atlantic ; - Yves dupenhoat (IRD, France) : Seasonal heat balance in the equatorial Atlantic Ocean

15 Day 3 : Wednesday October 27, 2010 : (morning) (longest day with the maximum of presentations => 15mn max each) - 8h30 : Presentation of scientific results and studies (continuation); c) coastal erosion and ecosystems : (Chairwoman : Isabelle Niang) - Sylvain Ouillon (IRD/Legos, France) : Coastal Sedimentation, introduction on the coastal sediment transports ; - Isabelle Niang (UCAD, Senegal): study of the coastal erosion in Sénégal ; - Larry Awosika (NIOMR, Nigeria) : coastal erosion along the Gulf of Guinea northern coasts ; - Wahab Laryea/A.K.Armah (DOF, Ghana): coastal erosion in Ghana ; - Yao Kouadio Salomon (CRO, Côte d Ivoire) : analysis and observations of the coastal erosion in Côte d Ivoire -Lucien Maloueki (UROCB, Congo): marine pollution, hydro-climate on the continental plateau of Congo and observation of the coastal erosion in the Loange bay (Congo) -10h00 : coffee break.. -10h30 : Presentation of scientific results and studies (continuation); (Chairwoman : Isabelle Niang) - Vivino Mouyalou (CNDIO, Gabon) : The coastal erosion problem in Gabon : status and prospectives -Rod Shell (NIOMR, Nigeria): Coastal erosion study in Nigeria - Kwasi Appeaning Addo (DOF, Ghana): Critical assessment of coastal processes and hazards along Ghana s coastline. -Raphael Onguene (UIT, Cameroun): modelization of estuary hydrodynamics in Central Africa and application to Cameroon estuary; - Jean Folack (CERECOMA, Cameroun): coastal erosion problem in Cameroon: attenuation management and control strategy - Georges Degbé (CRHOB, Bénin): proposal for a study of the coastal erosion in Bénin - 12h30 (or 13h?): lunch break.

16 Day 3 : Wednesday October 27, 2010 : (afternoon) -14h30 : Defences of the M2 research training periods (linked to topics of the previous and present days) - Aubains Hounsou Gbo : SST/wind relationships in the Equatorial Atlantic from satellite measurements, - Jaurès Diffo Tchinda: oceanic influence on coastal precipitation in boreal spring and summer at intraseasonal scales, - Lumea Abra Adossi: research of a predictability index for upwellings from satellite measurements at the basin scale, -Binessi Komlan Akakpo : analysis of the Equatorial UnderCurrent at 10 W from the measurements of the currentmeter mooring; -16h30 : coffee break. - 17h00 : Continuation of M2 defences : - Napoleon Addison: Investigation of the upwelling mechanism in the Gulf of Guinea - Sandrine Djakouré: treatment and analysis of SST measurements, sea level, wind and altimetry at Sassandra, Côte d Ivoire.

17 Day 4 : Thursday October 28, 2010 (morning) -8h30 : Presentation of scientific results and studies (continuation); d) biology/biogeochemistry and resources : (Chairwoman : Regina Folorunsho) - Lucien Maloueki (UROCB, Gabon): Status of the pelagic resources: behaviour and migration - Rod Shell (NIOMR, Nigeria): Environmental degradation, a threat for health and national food security - Nubi Olubunmi Ayoola (NIOMR, Nigeria) : Pollution Assessment of Marine Resources from the Gulf of Guinea - Jean Folack (CERECOMA, Cameroon): Problems of coastal pollution in Cameroon -Nubi Olubunmi Ayoola (NIOMR, Nigeria) : analysis of nutrients as measured in the Gulf of Guinea during the EGEE cruise (PhD proposal), - 10h00 : coffee break. - 10h30 : Presentation of coastal observation programs, status of observation networks and analysis of acquired measurements. (Chairman : Angora Aman) - Wahab Laryea / Ayaa K.Armah (DOF, Ghana): Comparative Analysis of 2 years SST data, from three Sensors - Onset, Satellite, Manual (Mercury in glass thermometer) - Regina Folorunsho (NIOMR, Nigeria): Status of PROPAO Onset thermometers in Lagos - Angora Aman (LAPA-MF, Côte d Ivoire): Status of Propao in Côte d Ivoire - Yann Robiou DuPont, Rémy Chuchla & Zacharie Sohou (CRHOB, Bénin): Presentation of the treatment and analysis processes of ONSET SST measurements acquired in the framework of PROPAO - Zacharie Sohou & Rémy Chuchla (CRHOB, Bénin): The regional PROPAO data bank ; coastal and open sea measurements for the Gulf of Guinea; -Saïdou Sall (UCAD, Sénégal): recent data acquired off Senegal - 12h30 (or 13h) : lunch break.

18 Day 4 : Thursday October 28, 2010 (afternoon -14h00 : Defences of the M2 research training periods (linked to topics of the present day) - Victor Okpeitcha : Analysis of fish catches statistics off Benin and potential relationships between the variabilities of catches and meteo-oceanic conditions, - Christian Sadem: analysis of the surface salinity minimum in the northern tropical Atlantic and potential relationships with African monsoon, - Rasheed Olayinka Jimoh: Internal waves & solitons offshore Nigeria- Mark Titokan Imhansoloeva: Hydrodynamic fluxes of the Commodore channel in the Lagos lagoon - Felix Messan Djossou: analysis of the measured wind in the South Atlantic anda long the Gulf of Guinea coasts - 16h30 : coffee break. - 17h00 : Discussions (restricted committee : Members of the MROPA pedagogic committee and invited people) about MROPA, teaching perspectives and PhD thesis potentialities. - 19h30: «Gala» diner at INFOSEC

19 Day 5 : Friday October 29, h30 : Discussion (in plenary session) about observations and their maintenance and development perspectives (possible extensions, other kinds of measurements.) (Chairmen : Angora Aman & Bernard Bourlès) -10h00 : coffee break - 10h30 : Discussion (in plenary session) about researches status and perspectives, definition of prioritary studies and potentialities of collaborations. (Chairmen : Yves Kouadio & Jean Folack) -12h30 : lunch break. -14h30 : Public presentation (exclusivity) of the EGEE 3 / AMMA movie (to be confirmed) -15h30 : Colloquium closure ceremony. - 17h : Restricted committee meeting of programmes PIs (PROPAO, ALOC-GG, ) and invited potential partners (LMI, PPR, other countries etc ): PROPAO evaluation and perspectives, scientific priorities, network extensions to other programs and laboratories/countries, and financial aspects (UEMOA, FAO, other call offers ). Draft/editing of a document / colloquium report.