Headquarters Global Research Division Africa Asia

Headquarters	Highlight Management Team
Full Name Designation Email Address Adams Vasudeva Aloysius Coordinator - Travel & Visa a.aloysius@cgiar.org Ajantha Ihalawela Senior Software Engineer a.ihalawela@cgiar.org Ajantha Perera Driver A.T.Perera@cgiar.org Ajith Perera Driver A.N. Perera@cgiar.org Ajith Wijayaratne Distribution Officer a.wijayaratne@cgiar.org Amena Mohammed Communications Coordinator a.mohammed@cgiar.org Amol Khisty Director Finance a.khisty@cgiar.org Anthony Joseph Junior Clerk a.joseph@cgiar.org Anusha de Silva Human Resources Administrator a.desilva@cgiar.org Arshad Razali Iyne Help Desk Coordinator r.iyne@cgiar.org Chanchala Kariyawasam Senior Secretary c.kariyawasam@cgiar.org Chandima Gunadasa Electronic Library Resource Specialist c.gunadasa@cgiar.org Colin Chartres Director General C.Chartres@cgiar.org Coretta De La Zilwa Senior Secretary c.delazilwa@cgiar.org Crishan Dunuwila Junior Accounts Assistant c.dunuwila@cgiar.org David Van Eyck Training, Career Development & Capacity Building Officer d.vaneyck@cgiar.org Dawn Rodriguez Communications Coordinator/Writer d.rodriguez@cgiar.org Dhanushi Samaranayake Junior Secretary d.samaranayake@cgiar.org Dilini Wijeweera Head, Communication & Knowledge Sharing d.wijeweera@cgiar.org Dominique Perera Web Master d.perera@cgiar.org Fahima Mubarak Finance and Operations Development Manager f.mubarak@cgiar.org Gamini Halvitige Financial Controller g.halvitige@cgiar.org Hannah Jaenicke Director, International Centre for Underutilized Crops h.jaenicke@cgiar.org Harshana Rambukwella Production Editor/Entry-level Science Writer h.rambukwella@cgiar.org Hasanika Piyasena Quality Management Systems Coordinator h.piyasena@cgiar.org Hemantha Samarakoon Junior Clerk h.samarakoon@cgiar.org Iresha Dharmawardhana Administrative Assistant i.dharmawardena@cgiar.org Jonathan Woolley Program Coordinator - Challenge Program on Water and Food j.woolley@cgiar.org K. Punchibanda Junior Clerk k.punchibanda@cgiar.org Kahthan Deane Senior Network & Systems Engineer K.Deane@cgiar.org Kamani Rajanayake Human Resources Operations Manager k.rajanayake@cgiar.org Kapila Pathiraja Assistant Manager, Building Engineering Services & Transport k.pathiraja@cgiar.org Kapila Rohana Kumara Driver K.Kumara@cgiar.org Kaushalya Moragaspitiya Information Resources Specialist k.moragaspitiya@cgiar.org Kokila Muttiah Officer, Project Accounting k.muttiah@cgiar.org Kushan Perera Officer - Financial Systems k.perera@cgiar.org Laksha de Alwis Officer - Project Accounting DeAlwis@cgiar.org Lal Abeykoon Junior Clerk l.abeykoon@cgiar.org Lalith Dassanaike Project Manager - Research l.dassenaike@cgiar.org Mahen Chandrasoma Senior Production Editor m.chandrasoma@cgiar.org Mahendra Palliyaguruge Web Developer M.Palliyaguruge@cgiar.org Mahilal Jayawardena Stores Officer m.jayawardena@cgiar.org Manik de Alwis Information Management Assistant m.dealwis@cgiar.org Manjula Rowel Officer - General Accounting m.rowel@cgiar.org Manoj Jayasuriya Web Designer M.Jayasuriya@cgiar.org Manzoor Qadir Marginal Water Management Specialist - ICARDAf m.qadir@cgiar.org Marc Andreini Hydrologist m.andreini@cgiar.org Marcia Macomber Capacity Building Officer m.macomber@cgiar.org Marene Abeysekera Finance Administrator m.abeyesekere@cgiar.org Meredith Giordano Director - Research Impact m.giordano@cgiar.org Natalia Abeynayake Donor Relations Coordinator n.abeynayake@cgiar.org Navaratne Rajage Ranjithsinghe Junior Clerk r.sri@cgiar.org Nazreen Silva Conference and Travel Officer nazreen.silva@cgiar.org Nihal Silva Officer Travel and Visa n.silva@cgiar.org Nimal Attanayake Layout and Graphics Specialist n.attanayake@cgiar.org Nirudha Perera Regional IT Support Manager South Asia n.perera@cgiar.org Paisley Rezel Electrician P.Rezel@cgiar.org Pamela George Program Manager - Challenge Program on Water and Food p.george@cgiar.org P.W. Pathirana Electrician P.Pathirana@cgiar.org Pavithra Amunugama Workflow Coordinator p.amunugama@cgiar.org Prasannalakshmi Sambandamurthy Head of Library - IWMI/WF p.sambandamurthy@cgiar.org Priyantha Chandrasena Driver Chandrasena@cgiar.org Ranjith Samarakoon Accountant r.samarakoon@cgiar.org Ranjith Wickremasinghe ICT Support Officer r.wickramasinghe@cgiar.org Ravindra Dissanayake Transport Assistant r.dissanayake@cgiar.org Riazzi Ziard IT Manager r.ziard@cgiar.org S. Krishnarajah Junior Clerk S.Krishnarajah@cgiar.org Saminathan Arockiam Plumber A.Saminathen@cgiar.org Samyuktha Varma Communications Coordinator/Researcher samyuktha.varma@cgiar.org Sandaruwan Wickrama Web Services Officer swickrama@iwmihq.cgiar.org Sanjeevani Fernando Manager - Project Accounting s.perera@cgiar.org Sanjeewa Amarasekara Help Desk Coordinator s.amarasekara@cgiar.org Sanjiv de Silva Research/Program Officer s.s.desilva@cgiar.org Sarath Edirimanne Production Assistant/Clerk s.edirimanne@cgiar.org Shabeena Zafrullah Manager Budgets & MIS s.zafrullah@cgiar.org Shahnaz Baksh Secretary s.baksh@cgiar.org Shalini Kumaresan Board Coordinator/Administrative Officer s.kumaresan@cgiar.org Shantha Kumara Driver S.Keddagodage@cgiar.org Shantha Marasinghe PC Support Technician s.marasinghe@cgiar.org Shanthi Weerasekera Manager, Human Resources s.weerasekera@cgiar.org Sharmani Gunawardena Administrative Officer s.gunewardena@cgiar.org Sharni Jayawardena Communications Coordinator s.jayawardena@cgiar.org Sharon Perera Executive Assistant to the Program Coordinator sharon.p@cgiar.org Shermila Jayawardana Web Applications and Software Developer s.jayawardana@cgiar.org Shyamine Faleel Layout and Graphics Specialist s.faleel@cgiar.org Subashinie Abeyratne Information Management Specialist s.abeyratne@cgiar.org Sujatha Dassanayake Receptionist/Junior Secretary s.dassanayake@cgiar.org Sumith Fernando Layout and Graphics Specialist s.fernando@cgiar.org Sunari Silva Senior Software Engineer ssilva@cgiar.org Sunil Jayatillake Carpenter/Fitter A.Jayethilaka@cgiar.org Sunil Seneviratne Manager, Office Support Systems Office s.seneviratne@cgiar.org Sushilla Rajamanie Administrative Officer s.rajamanie@cgiar.org Thushari Dissanayake Human Resources Administrator t.dissanayake@cgiar.org Thusitha Jayatilleke Administrative Officer t.jayatilleke@cgiar.org Upali Karunanayake Senior Purchasing Assistant u.karunanayake@cgiar.org Upali W.D General Labourer W.Upali@cgiar.org Upeka Kariyawasam Head, Program Office u.kariyawasam@cgiar.org Viranga Kularatne Receptionist/Junior Secretary v.kularatne@cgiar.org Woranga Atukorale Senior Software Engineer w.weerakoon@cgiar.org Yamuna Udumalagala Information Management Assistant Y.Udumalagala@cgiar.org Yvonne Weerasinghe Senior Secretary y.weerasinghe@cgiar.org
Global Research Division	TOP^
Full Name Designation Email Address Aditi Mukherji Researcher - Social Scientist a.mukherji@cgiar.org Alexandra Clemett Researcher-Livelihoods/Water Quality/Waste Water a.clemett@cgiar.org Arosha Ranasinghe Secretary a.ranasinghe@cgiar.org Ashra Fernando Senior Secretary a.fernando@cgiar.org Chandana Gangodagamage Remote Sensing Specialist c.gangodagamage@cgiar.org Charlotte de Fraiture Theme Leader for Basin Water Management c.fraiture@cgiar.org Charmini Kodituwakku Research Officer, Forestry & Environmental Specialist - Integrated Basin Water Management Systems Challenge Program on Water and Food c.kodituwakku@cgiar.org David J Molden Deputy Director General - Research/Acting Theme Leader, Water Management and Environment d.molden@cgiar.org Deborah Bossio Director - Research Programs/Theme Leader and Principal Soil Scientist Land, Water and Livelihood d.bossio@cgiar.org Deeptha Wijerathna Agricultural Economist d.wijeratne@cgiar.org Dheeravath Venkateswarlu Research Officer - RS/GIS Expert d.venkateswarlu@cgiar.org Francis Gichuki CP Theme Leader - Integrated Basin Water Management Systems f.gichuki@cgiar.org Francois Molle Water Management Specialist f.molle@cgiar.org Himani Elangasinghe Senior Secretary h.elangasinghe@cgiar.org Ilyas Masih Research Officer i.masih@cgiar.org Jagath Vithanage Remote Sensing/GIS Specialist j.vithanage@cgiar.org Janitha Godamuduna Senior Secretary j.godamuduna@cgiar.org Julie van der Bliek Director, Business Development j.vanderbliek@cgiar.org Kiribandage Jinapala Institutions Specialist k.jinapala@cgiar.org Lakmali Wijesinghe Metadata Assistant l.wijesinghe@cgiar.org Lal Muthuwatta Hydrologist/ Mathematical Modeler l.mutuwatte@cgiar.org Lisa Maria Rebelo Post-Doctoral Fellow, Wetlands Remote Sensing l.rebelo@cgiar.org Luna Bharati Researcher - Hydrology and Water Resources L.bharati@cgiar.org Mala Ranawake Administrative Officer m.ranawake@cgiar.org Mark Giordano Head, Institutions and Policies mark.giordano@cgiar.org Markandu Anputhas Biometrician m.anputhas@cgiar.org MD. Aminul Islam Research Officer - Remote Sensing/GIS Specialist a.islam@cgiar.org Mir Abdul Matin Project Manager - Integrated Data and Information Systems m.matin@cgiar.org Mobin-ud-Din Ahmad Senior Researcher - Hydrology and Remote Sensing a.mobin@cgiar.org Murali Gumma Research Officer - RS/GIS Expert M.Gumma@cgiar.org Neelanga Weragala Water Resources Engineer n.weragala@cgiar.org Nidhi Nagabhatla Post-Doctoral Fellow - Landscape Ecology n.nagabhatla@cgiar.org Nihal Dayasena Field Data Collector n.dayasena@cgiar.org Nilantha Gamage Remote Sensing/GIS Specialist n.gamage@cgiar.org Nilupuli Pethiyagoda Secretary n.pethiyagoda@cgiar.org Nishadi Eriyagama Water Resources Engineer n.eriyagama@cgiar.org Nishath Yapa Data Warehouse Database Administrator n.yapa@cgiar.org Noel Aloysius Water Resources Engineer n.aloysius@cgiar.org Olivier Briët Research Associate o.briet@cgiar.org Parakrama Weligamage Agricultural Economist p.weligamage@cgiar.org Prasad Thenkabail Principal Researcher, Head, Remote Sensing/GIS & Natural Resources Management p.thenkabail@cgiar.org Priyanka Dissanayake Environmental Scientist p.dissanayake@cgiar.org Priyantha Jayakody Agricultural Engineer p.jayakody@cgiar.org Ranjith Alankara Digitizing Operator a.ranjith@cgiar.org Ranjith Ariyaratne Benchmark Basin Coordinator r.ariyaratne@cgiar.org Rathinasamy Maria Saleth Senior Institutional Economist r.saleth@cgiar.org Ruchira Somaratne Data Warehouse Database Administrator r.somaratne@cgiar.org Sadir Mohideen Senior Software Developer m.sadir@cgiar.org Samanmali Jayatillaka Secretary c.jayathilake@cgiar.org Sara Marjanizadeh Research Fellow S.Marjanizadeh@cgiar.org Sarath Gunasinghe Digitizing Operator s.gunasinghe@cgiar.org Sepali Goonaratne Administrative Officer s.goonaratne@cgiar.org Sitara Atapattu Coastal Zone Ecologist, Comprehensive Assessment of Water Management in Agriculture s.atapattu@cgiar.org Sonali Senaratna Sellamuttu Researcher - Livelihood Systems s.senaratnasellamuttu@cgiar.org Sophie Nguyen Khoa Man Researcher, Water and Fisheries s.nguyen-khoa@cgiar.org Sujeewa Priyankarage Chemist s.piyankarage@cgiar.org Thushari Perera Research Officer t.perera@cgiar.org Vinay Nangia Consultant v.nangia@cgiar.org Vladimir Smakhtin Head, Global Change & Environment v.smakhtin@cgiar.org Wasantha Kulawardhana Remote Sensing/GIS Specialist & Web Developer w.kulawardhana@cgiar.org Xueliang Cai Post-Doctoral Fellow- Remote Sensing X.Cai@cgiar.org
Africa	TOP^
IWMI East Africa & Nile Basin Full Name Designation Email Address Aster Denekew GIS, IT & Database Expert a.denekew@cgiar.org Daba Dandena Driver   Eline Boelee Health & Irrigation Specialist e.boelee@cgiar.org Fitsum Hagos Social Science/Economist F.Hagos@cgiar.org Gayathree Jayasinghe Biometrician g.jayasinghe@cgiar.org Katrien Descheemaeker Post-Doctoral Fellow - Integrated Water Resources Management (IWRM) k.descheemaeker@cgiar.org Kim Geheb Senior Social Scientist in the CPWF k.geheb@cgiar.org Makonnen Loulseged Water Resources Specialist m.loulseged@cgiar.org Matthew McCartney Hydrologist m.mccartney@cgiar.org Nadia Manning Researcher/Outreach Coordinator nmanning@iwmihq.exch.cgiar.org Nigist Wagaye Senior Programme Assistant n.wagaye@cgiar.org Seleshi Awulachew Head, East Africa and Nile Basin s.bekele@cgiar.org Tilahun Amede Wondifraw Researcher (Joint Appointment with IWMI & ILRI) T.Amede@CGIAR.org Tsgereda Lemma Administrative Assistant TsLemma@ILRIETH.EXCH.CGIAR.ORG Yasir Mohamed Senior Researcher y.mohamed@cgiar.org       IWMI Southern Africa Full Name Designation Email Address Barbara Van Koppen Rural Sociologist Poverty, Gender and Water b.vankoppen@cgiar.org Christian Cheron Rural Engineering Water and Forestry c.cheron@cgiar.org Dudu Mazibuko Finance Administrator d.mazibuko@cgiar.org Everisto Mapedza Researcher - Social and Institutional Scientist e.mapedza@cgiar.org Femi Olubode-Awosola Post Doctoral Fellow - Agri Economics (SAKSS-SA) f.olubode@cgiar.org Harold Magagula Driver h.magagula@cgiar.org Hilmy Sally Head, Southern Africa h.sally@cgiar.org Hosiah Ngwenya Driver / Messenger b.ngwenya@cgiar.org Jayashree Pachpute Post-Doctoral Fellow - Land & Water Productivity jpachpute@cgiar.org Mutsa Masiyandima Hydrologist m.masiyandima@cgiar.org Pius Chilonda Sub-Regional Coordinator - ReSAKSS-SA p.chilonda@cgiar.org Yogesh Bhatt Knowledge Management and Outreach Coordinator y.bhatt@cgiar.org Yonas Bahta Post Doctoral Fellow in Agricultural Economics Y.Bahta@cgiar.org       IWMI West Africa Full Name Designation Email Address Akissa Bahri Director, Africa a.bahri@cgiar.org Alfred Ghartey Driver   Benjamin Heywood Driver benjamin.dadzie@gmail.com Benjamin Lamptey Researcher b.lamptey@cgiar.org Bernard Keraita Irrigation and Water Engineer b.keraita@cgiar.org Boubacar Barry Glowa-Project Coordinator b.barry@cgiar.org Daniel Ofori Accounts Officer d.ofori@cgiar.org Daniel Twumasi Driver daniel.twumasi@gmail.com David Ochard Driver (Glowa Volta) david.orchard@gmail.com Delali Afi Awadzi Research Assistant d.awadzi@cgiar.org Ebenezer Aboah Cleaner/Gardener ebenezer.aboah@gmail.com Edmund Akoto-Danso Research Assistant e.akoto@cgiar.org Edward Boateng Cleaner/Electrician edward.boateng@gmail.com Eli Sopkoli Driver (Glowa Volta) eli.sopkoli@gmail.com Eric Korankye IT/ Office Manager e.korankye@cgiar.org Eric Owusu Finance Officer e.owusu@cgiar.org Ernest Abraham Knowledge Management Officer e.abraham@cgiar.org George Mortey Administrative Officer g.mortey@cgiar.org Godsway Cudjoe Research Officer - Ghana Strategy Support Program (IFPRI) gcudjoe@iwmihq.exch.cgiar.org Hideto Fujii Principal Researcher hfujii@iwmihq.exch.org John Amonoo Executive Assistant to Africa Regional Director j.amonoo@cgiar.org Kipo Jimah Research Officer   Kwame Boateng Research Assistant E.Boateng@cgiar.org Lesley Hope Research Assistant L.Hope@cgiar.org Linda Beccles Administrative Assistant l.beccles@cgiar.org Liqa Raschid-Sally Head, IWMI West-Africa l.raschid@cgiar.org Lydia Amoah Admin. Assistant (Challenge Program) l.amoah@cgiar.org Martin Ofori Driver martin.ofori@gmail.com Noah Adamtey PhD Fellow   Olufunke Cofie Soil Scientist o.cofie@cgiar.org Pay Drechsel Theme Leader, Agriculture Water and Cities p.drechsel@cgiar.org Philip Amoah Environmental Scientist p.amoah@cgiar.org Regassa Namara Economist r.namara@cgiar.org Richard Kumassah Knowledge and Monitoring Officer   Salisu Adams Driver (Glowa Volta) salisu.adams@gmail.com Theophilus Otchere Larbi Capacity Building and Training Officer - under RUAF II project t.larbi@cgiar.org Yussif Samiru Driver yussif.abdullahi@gmail.com Emelia Boampong Administrative Officer e.boampong@cgiar.org
Asia	TOP^
IWMI Central Asia     Full Name Designation Email Address Akmal Karimov Researcher a.karimov@cgiar.org Alexander Platonov Researcher (GIS/RS Specialist) a.platonov@cgiar.org Asad Qureshi Water Resources Management Specialist a.sarwar@cgiar.org Diloram Sabirova Secretary d.sabirova@cgiar.org Herath Manthrithilake Head, IWMI Central Asia h.manthri@cgiar.org Ikbal Yusupova Project Assistant i.yusupova@cgiar.org Ilhom Babaev Finance and Administration Officer i.babaev@cgiar.org Ilshat Tukhvatullin Driver/Office Assistant i.babaev@cgiar.org Ilya Pak Driver/Office Assistant i.babaev@cgiar.org Jusipbek Kazbekov Researcher j.kazbekov@cgiar.org Kahramon Jumaboev Research Officer k.jumaboev@cgiar.org Murat Yakubov Research Officer m.yakubov@cgiar.org Nargiza Nizamedin khodjayeva Research Officer n.nizamedin@cgiar.org Olga Petrova Cleaner/Office Assistant i.babaev@cgiar.org Oyture Anarbekov Research Officer o.anarbekov@cgiar.org Tumur Gunchinmaa Post-Doctoral Fellow - Economics/Social Sciences t.gunchinmaa@cgiar.org Yuliya Efremova Consultant (Assistant to GIS\RS specialist) y.efremova@cgiar.org       IWMI India (Hyderabad)     Full Name Designation Email Address Aparna Satish Administrative Associate v.aparna@cgiar.org Aruna Jyothi Associate - Data Entry j.arunajyothi@cgiar.org Dinesh Kumar Researcher and ITP Leader d.kumar@cgiar.org G.K Ambili Scientific Officer Ambili.gk@cgiar.org Judith Christiana Administrative Associate j.christiana@cgiar.org K B Suleman Officer (Information/Knowledge) K.Suleman@cgiar.org Kairav Trivedi Scientific Officer k.trivedi@cgiar.org Kaushal Garg Scientific Officer-Hydrology k.garg@cgiar.org Kiran Jella Scientific Officer (GIS & Remote Sensing) J.Kiran@cgiar.org Madar Samad Agric. Economist/Head, India and Nepal Offices m.samad@cgiar.org Mohammed Qadir Driver-cum-General Assistant tomaquadeer@yahoo.co.in Navanitha Raghupathi Administrative Officer r.navanita@cgiar.org Priyanie Amerasinghe Sr. Researcher - Bio-Medical Science p.amerasinghe@cgiar.org Saba Ishaq Scientific Officer (Urban & Peri-urban Agriculture) s.ishaq@cgiar.org Sacchidananda Mukherjee Senior Scientific Officer s.mukherjee@cgiar.org Sekhar Rao Office Assistant   Sreedhar Nallan Senior Officer Data Management nallan_sreedhar@yahoo.com Sylvain Massuel Post-Doctoral Fellow - Hydrology massuel@free.fr T.P. Gangadhara Rao Senior Scientific Officer p.gangadhararao@cgiar.org Vidya Ramesh Senior Scientific Officer r.vidya@cgiar.org       IWMI India (IWMI/TATA Program) Full Name Designation Email Address P. Reghu Executive Assistant p.reghu@cgiar.org Tushaar Shah Senior Advisor to the DG t.shah@cgiar.org       IWMI India (New Delhi) Full Name Designation Email Address Amit Khare Consultant /Groundwater Governance in Asia a.khare@cgiar.org Bharat R. Sharma Senior Agril Water Management Specialist/ Head, IWMI-New Delhi b.sharma@cgiar.org Meena Negi Administrative Associate m.bisht@cgiar.org Nitin Bassi Scientific Officer n.bassi@cgiar.org Sanjay Bisht Driver cum General Assistant   Upali Amarasinghe Senior Statistician u.amarasinghe@cgiar.org       IWMI Iran Full Name Designation Email Address Mohammad Babayee Cleaner   Neda Taremi Secretary N.Taremi@cgiar.org Poolad Karimi Research Officer p.karimi@cgiar.org Reza Taramashloo Driver/Office Assistance         IWMI Nepal Full Name Designation Email Address Dhruba Raj Pant Head, IWMI-Nepal d.pant@cgiar.org Neelima Lama Administrative Associate N.Lama@cgiar.org Pratima Shrestha Consultant iwminepal@nep.wlink.com.np       IWMI Pakistan     Full Name Designation Email Address Abdul Khan Head, IWMI Pakistan a.khan@cgiar.org Asghar Hussain Spatial Data Analyst a.hussain@cgiar.org Moghis Ahmed Accountant a.moghis@cgiar.org Riaz Wicky Driver/Office Assistant   Sarfraz Munir Junior Researcher (WM) s.munir@cgiar.org Tabrez Ahmad Secretary/Personnel Assistant t.ahmad@cgiar.org Waqas Ahmad Junior Research Officer W.AHMAD@CGIAR.ORG       IWMI South East Asia Full Name Designation Email Address Alain Pierret Root Systems Scientist apierret@gmail.com Andrew Noble Head, SE-Asia a.noble@cgiar.org Arlene Inocencio Economist a.inocencio@cgiar.org Christian Valentin Head, IWMI-Laos c.valentin@cgiar.org Chu Thai Hoanh Senior Water Resources Engineer c.t.hoanh@cgiar.org Didier Orange Hydrologist and Geochemist d.orange@cgiar.org Emmanuel Bourdon Soil Scientist bourdon@irdlaos.org Florine Pei Pei Lim Office Manager f.lim@cgiar.org Giang Tran Thi Huong Secretary huonggiang_tran@hotmail.com Guillaume Lestrelin Human Geographer guillaume.lestrelin@durham.ac.uk Jean-Pierre Thiebaux Hydrologist thiebauxird@laopdr.com Olivier Ribolzi Hydrogeochemist o.ribolzi@cgiar.org Pascal Jouquet Soil Ecologist pascal.jouquet@bondy.ird.fr Peter McCornick Director, Asia p.mccornick@cgiar.org Thierry des Tureaux Hydrologist tureaux@hotmail.com Yann Le Troquer Geophysician yann.le_troquer@irdlaos.org