PREFACE-test

Southern Atlantic Marine Science Cooperation Workshop 2015

• PREFACE: Towards the Galway Vision of collaboration in the Eastern Tropical Atlantic. Ostrowski et al.

To view more (non-PREFACE) presentations from the Southern Atlantic Marine Science Cooperation Workshop, 15 April 2015, Brussels, Belgium, please click HERE.

Tropical Atlantic Variability Conference 2015

Oral presentations
Welcome and Introduction

• Introduction to PREFACE (N. Keenlyside, UiB)
• Introduction to PIRATA (B. Bourlès, IRD)
• Socioeconomic Benefits of LME Valuation in context of Climate Change. (R. Sumaila, UBC)

Session 1 : Key oceanic processes in the equatorial Atlantic and the Gulf of Guinea

• Mixing in the tropical Atlantic: the contribution of tides, intra-seasonal winds and equatorial dynamics. Julien Jouanno and Xavier Capet (jouanno@legos.obs-mip.fr)
• Why is there a front north of the Atlantic Cold Tongue? Hervé Giordani, Guy Caniaux and A. Voldoire (herve.giordani@meteo.fr)

Session 1 : Key processes in the Benguela and Mauritanian/Senegalese Upwelling

• The relation of SST-bias and water mass distribution seen in a regional numerical ocean model of the Benguela system. Martin Schmidt, Tim Junker, Volker Mohrholz, Lydia Siegfried, Anja Van der Plas (martin.schmidt@io-warnemuende.de)
• Sensitivity of sea surface temperature to wind stress in the Benguela upwelling system. M. Krebs, A. Biastoch, J. Durgadoo, M. Latif , C. Böning (mkrebs@geomar.de)
• Warm and cold events in the southeast Atlantic Ocean. Rodrigue Anicet Imbol Kougue, Mathieu Rouault, Julien Jouanno (rodrigueanicet@gmail.com)

Session 2 : Climate variability, modelling and prediction: processes and variability

• Conceptual model for meridional mode and its connection with equatorial mode in tropical Atlantic. Mesmin Awo, Benoit Koubodana, Gaël Alory, Ezinvi Baloitcha (mesawo2000@gmail.com)
• On the role of internal atmospheric processes in equatorial Atlantic variability. Ingo Richter (richter@jamstec.go.jp)

Session 2 : Model validation and bias

• Impact of sea surface temperature bias on equatorial Atlantic interannual variability in partially coupled model experiments. M. Latif, H. Ding, R. J. Greatbatch, and W. Park (mlatif@geomar.de)
• Using the Transpose-AMIP framework to disentangle atmospheric biases in the equatorial Atlantic. Claudia Frauen, Romain Roehrig, and Aurore Voldoire (claudia.frauen@meteo.fr)

Session 2 : Predictability and prediction

• Atlantic opportunities for ENSO prediction Marta Martín-Rey, Belén Rodríguez-Fonseca and Irene Polo (mmartindelrey@fis.ucm.es)
• Summary of IC3 (Barcelona, Spain) contribution to the PREFACE project. Chloé Prodhomme, Eleftheria Exarchou, Danila Volpi, Virginie Guemas, Francisco Doblas-Reyes (chloe.prodhomme@ic3.cat)
• Decadal prediction of Sahel rainfall using dynamics-based indices. Elsa Mohino, Noelia Otero, Marco Gaetani (emohino@fis.ucm.es)
• Oceanic Indices to Forecast the Seasonal Rainfall over the Northern Northeast of Brazil G. A. Hounsou-Gbo, J. Servain, M. Araújo, E.S. Martins, B. Bourlès, G. Caniaux (jacques.servain@gmail.com)
• Future Sahelian rainfall projections and selection of a sub-ensemble of CMIP5 models for impact studies. Paul-Arthur Monerie, Emilia Sanchez-Gomez, Julien Boé (pmonerie@cerfacs.fr)

Session 3: Marine ecosystems, fisheries and climate change

• Food-web structure of mesopelagic communities in high and low oxygen environments in the eastern tropical north Atlantic as identified by stable isotope analysis. Czudaj S., Hoving H.J.T., Piatkowski U. & Fock H. (stephanie.czudaj@ti.bund.de)
• The evolution of the Angolan sardinella stock in relation to the climatic events in the eastern tropical Atlantic 1985-2014. Barradas A., Miguel A. A., Djamila, P. M., Sangolay, B.B, Rouault M., Ostrowski, M. (bbsangs12@hotmail.com)
• Spatio-temporal variability and trends in primary productivity in the Canary upwelling system, 1998-2014. Hervé DEMARCQ, Eric MACHU, Aissa BENAZZOUZ (herve.demarcq@ird.fr)
• Northward migration of small pelagic fish off West Africa: The barrier of the Sahara Bank in the context of climate change. Timothée Brochier, Eric Machu, Laure Pecquerie, Modou Thiaw, Baye Cheikh Mbaye, Cheikh-Baye Braham, Omar Ettahiri, Najib Charouki, Pierre-Amaël Auger, Patrice Brehmer (timothee.brochier@gmail.com)
• Fishing and climate change in Saloum: Between drought and advancing sea. Adama Mbaye, Aliou Ba, Patrice Brehmer (ambayeskr@yahoo.fr)

PIRATA Open Session:

• Overview on PIRATA and relevant scientific hightlights (B.Bourlès, M.Araujo, R.Lumpkin)
• Mixed layer Dynamics and diurnal cycle in the equatorial Atlantic Ocean (M. McPhaden & J. Wenegrat)
• PIRATA : some operational oceanography highlights (F.Hernandez)

Poster presentations
Session 1

• Evaluation of forced oceanic models in the Gulf of Guinea J. Yandjimain, G. Alory, F. Adjibode (yandjimain@yahoo.fr)
• Intraseasonal variability in the tropical Atlantic and southeastern upwelling region as seen in observations and reduced gravity simulations. Robert kopte, Peter Brandt, Richard J. Greatbatch, Martin Claus, (rkopte@geomar.de)

Session 2

• Variations of the Tropical Atlantic and Pacific SSS minimum zones and their relations to the ITCZ and SPCZ rain bands (1979-2009). M. Tchilibou, T. Delcroix, G. Alory, S. Arnault, G. Reverdin (gael.alory@legos.obs-mip.fr)
• On the relationship between surface wind convergence and SST in the Tropical Atlantic Moussa Diakhate, Alban Lazar, Gaelle de Coetlogon, Amadou T. Gaye, (moussa1.diakhate@ucad.edu.sn)
• Estimating Wind Power Input to near-inertial currents in the North Atlantic with a regional coupled model Tina Dippe, Xiaoming Zhai, Richard Greatbath, Willi Rath, (tdippe@geomar.de)
• Decadal Changes in the Atlantic Equatorial Mode and Tropical Impacts Teresa Losada, Belén Rodríguez-Fonseca, (tldoval@fis.ucm.es)
• Impact of the Madden Julian Oscillation on summer rainfall over West Africa in AMIP simulations. Niang Coumba, Elsa Mohino, Amadou T. Gaye , (emohino@fis.ucm.es)
• S4CAST: SST-based Statistical Sesonal ForeCAST . Description and Applications within PREFACE. Roberto Suarez Moreno, Belen Rodríguez-Fonseca (brfonsec@fis.ucm.es)
• Tropical Atlantic influence on the Pacific under different ocean background states. Belen Rodríguez-Fonseca, Elsa Mohino, Teresa Losada, Juergen Bader, (brfonsec@fis.ucm.es)
• Recent climatic trends in the tropical Atlantic: Further analyses from the Servain’s data base. Jacques Servain, Antonio Geraldo Ferreira, Demetrius Gomes, Guy Caniaux and Leandro Valente Jacinto, (jacques.servain@gmail.com)
• Investigating the impact of observed wind stress forcing on the SST bias in the tropical Atlantic – sensitivity experiments with ECEarth3.1. Anna-Lena Deppenmeier, Rein Haarsma, Wilco Hazeleger (anna-lena.deppenmeier@wur.nl)
• A first look at wind stress sensitivity experiments with CNRM-CM5 within the framework of PREFACE WP6 coordinated experiments. Claudia Frauen and Aurore Voldoire (claudia.frauen@meteo.fr)
• Enhanced Vertical Atmosphere Resolution improves Climate Model Simulation of Tropical Atlantic SST and Interannual Variability. Jan Harlaß, Mojib Latif and Wonsun Park (jharlass@geomar.de)
• Initial performance of the Norwegian Climate Prediction model in the Atlantic. Noel Keenlyside, Mao-Lin Shen, Francois Counillon, Ingo Bethke, Shunya Koseki, Teferi Demissie, Thomas Toniazzo (noel.keenlyside@gfi.uib.no)
• Biases in the UCLA-MIT global model. Antonio Castaño-Tierno, Elsa Mohino, Teresa Losada, Belén Rodríguez-Fonseca, (tldoval@fis.ucm.es)

Session 3

• Multifrequency acoustics measurements during the PIRATA FR25 cruise in the Eastern Tropical Atlantic Ocean. Habasque, J., Bourlès, B., Machu, E., Brehmer, P., (patrice.brehmer@ird.fr)

Tropical Atlantic Variability Conference 2016

Oral presentations
Session 1: Oceanic and atmospheric processes affecting physical-biogeochemical interaction and climate

• Interannual tropical Atlantic variability modes: classification and Sea Surface Salinity signature (Awo et al)
• Potential impact of Atlantic climate modes on the ventilation of the oxygen minimum zone in the eastern tropical north Atlantic (Burmeister & Lübbecke)
• Influence of greenhouse gas concentration and Arctic sea-ice change on the West African Monsoon (Monerie et al)
• Changes in the ecosystem structure of the algae Sargassum in the tropical Atlantic Ocean (Djakouré et al)
• The Angola Current at 11°S: observations and response to tropical Atlantic variability (Brandt et al)
• Current variability and wave propagation along the south-west African coast as revealed by mooring observations (Junker et al)
• TKE dissipation and turbulent mixing in the Northern Benguela (Mohrholz et al)
• Role of Interannual Kelvin wave propagations in the equatorial Atlantic on the Angola Benguela current system (Imbol Koungue et al)
• Observations of Air-Sea interactions in the Gulf of Guinea during the OLACTA-DACCIWA 2016 field campaign (Meynadier et al)
• The upper layer circulation in the Gulf of Guinea revisited from in situ data and a high resolution numerical model (Herbert et al)

Session 3: Towards realising socio-economic benefits of climate prediction in the Tropical Atlantic for marine ecosystems, fisheries, and continental climate

• Changes in the trans-equatorial distribution of Sherborn’s basslet, Howella sherborni, and Atlantic pelagic basslet, Howella atlantica, in the northern tropical Atlantic (Fock et al)
• First insights on the impact of hydrology and currents on the horizontal and vertical distributions of fish and macrozooplankton in the Eastern tropical Atlantic Ocean (Habasque et al)
• Tropical Atlantic Variability and fluctuations of small pelagic fish off Angola: The role of the main upwelling season (Ostrowski & Barradas)
• Vertical habitat use and diving behaviour of yellowfin tuna, Thunnus albacares, in CABO VERDE (Silva et al)
• Population traits in Small pelagic fish model: emergence from interactions between turbulent environment and individual behaviours in Upwelling Systems (Brochier et al)
• Climate change projections over West Africa: What would be the role of Ocean SST (Sylla et al, WASCAL)
• Predictability of malaria parameters in Sahel under the S4CAST Model (Diouf et al)
• Decadal prediction of Sahel rainfall: where does the skill (or lack thereof) come from? (Mohino et al)
• Climate change after the COP 21: economic aspects (Anna Creti)

Session 2: Mechanisms and simulation of tropical Atlantic climate variability

• Origin of upwelled water in the Benguela system: source region, upwelling depth and propagation pathways (Siegfried & Schmidt)
• Pathways of the upwelled water in the Benguela Current (Krebs et al)
• Alleviating Tropical Atlantic Sector Biases in the Kiel Climate Model by Enhancing Horizontal and Vertical Atmosphere Model Resolution: Climatology and Interannual Variability (Latif et al)
• Symmetry of the Atlantic Niño mode (Lübbecke & McPhaden)
• Observational evidence of Atlantic Niño decadal variability (Nnamchi et al)
• On the inter-annual tropical Atlantic variability modes under negative AMO phases (Martin-Rey et al)
• SST bias development in the Tropical Atlantic in PREFACE coordinated experiments (Voldoire et al)
• A mechanism for the changing impact of the tropical Atlantic on the Pacific. Influence of bias (Rodríguez-Fonseca et al)
• Disentangling atmospheric biases in the tropical Atlantic in the CNRM climate model (Roehrig et al)
• The complexity of climate model drifts (Zanchettin et al)
• Role of equatorial forcing in SST bias development in the South-Eastern Tropical Atlantic in a high resolution version of CNRM-CM CGCM (Goubanova et al)
• On the possible sources of southeastern Atlantic warm bias (Cabos et al)
• The influence of ocean-SST-cloud feedback on the tropical Atlantic SST bias
• On the influence of GCM biases on seasonal prediction skill in the tropical Atlantic (Richter et al)
• Impact of Sea Surface Temperature Biases on Tropical Cyclone Simulations (Hsu et al)
• Impact of dynamical regionalization on precipitation biases and teleconnections over West Africa (Gómara et al)
• Importance of marine boundary layer clouds for the mean climate and interannual variability over the Atlantic Ocean (Mechoso et al)