chemical oceanography unit – members
DESCRIPTION
Chemical Oceanography Unit – Members. Alberto Vieira Borges, FNRS Research associate Biogeochemistry of aquatic systems Bruno Delille, BSP Researcher Carbon cycle in the Southern Ocean and climatic feedbacks Willy Champenois, PhD student Carbon cycle in the Posidonia oceanica meadows - PowerPoint PPT PresentationTRANSCRIPT
Chemical Oceanography Unit – Members
Alberto Vieira Borges, FNRS Research associateBiogeochemistry of aquatic systems
Bruno Delille, BSP ResearcherCarbon cycle in the Southern Ocean and climatic feedbacks
Willy Champenois, PhD studentCarbon cycle in the Posidonia oceanica meadows
Nicolas-Xavier Geilfus, PhD studentSea ice CO2 dynamics
Yefanlan José Mathieu Koné, PhD studentCarbon cycle in tropical coastal ecosystems
Kim Suykens, PhD studentCarbon cycle in the Gulf of Biscay and climatic feedbacks
Marc-Vincent Commarieu, technicianLaboratory analysis and field work
Chemical Oceanography Unit – Study SitesThe Chemical Oceanography Unit carries out research on the greenhouse gas carbon dioxide (CO2) in several environments :
- Estuaries, lagoons and mangroves- Posidonia seagrass meadows- Southern Ocean- Arctic and Antarctic sea-ice- African lakes
To better constrain the absorption of CO2 by aquatic systems.
Chemical Oceanography Unit – Methods
“Classical” oceanographic cruises
Automated system on board the Belgica
Automated system on a fixed station in the Scheldt
Adapted for “extreme” and minimal conditions
Mesocosm experiments
O2 and CO2 mooring in Corsica (Calvi)
• Two experimental approaches :- « Manned » field work- Autonomous systems (Belgica, Scheldt and Corsica)
• Scaling of data from Remote Sensing images • Collaboration with several modelling groups
Chemical Oceanography Unit – Scheldt
EU IP CARBOOCEAN (http://www.carboocean.org/) & FNRS FRFCMonitoring of pCO2 in the Upper Scheldt (Antwerpen – Ste Anna station)
Determine the long-term changes of pCO2 related to nutrient and organic carbon input regulation policies and initiatives
Chemical Oceanography Unit – Belgian Coastal Zone
EU IP CARBOOCEAN (http://www.carboocean.org/)Monitoring of pCO2 in the Belgian Coastal Zone (automated system on the Belgica since September 2000)
Determine inter-annual variability of pCO2 dynamics
Chemical Oceanography Unit – Belgian Coastal Zone
Belspo BELCOLOUR-2 (http://www.mumm.ac.be/BELCOLOUR/EN/)Derivation of pCO2 fields in the Belgian Coastal Zone from remote sensing imagery (Chla, SST) and modelling (SSS)
Chemical Oceanography Unit – Gulf of Biscay
Belspo PEACE (http://www.co2.ulg.ac.be/peace/)Carbon cycling in coccolithophorid blooms in the frame of ocean acidification
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15 °W 13 °W 11 °W 9 °W 7 °W 5 °W
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2006/06/01
2006/06/05
a b
b c
2006/06/01
2006/06/05
a
15 °W 13 °W 11 °W 9 °W 7 °W 5 °W
48 °N
50 °N
52 °N
123
456
78
200m1000m2000m4000m
Celtic Sea
Channel
Goban Spur
Meriadzek Terr.La Chapelle Bank
Ir
UK
FArmorican
Shelf
Chemical Oceanography Unit – Calvi mooring
MIS FNRS (http://www.co2.ulg.ac.be/posidonia.htm)Monitoring of O2 and pCO2 in Posidonia meadow (Calvi) since 2006Determine long term changes of productivity (Gross Primary production (GPP) and Community Respiration (CR))
Chemical Oceanography Unit – Mediterranean Sea
EU IP SESAME (http://www.sesame-ip.eu/)Evaluation of air-sea CO2 fluxes in the Mediterranean and Black Seas in the frame of EU IP SESAME
Underway measurements
CilicianBasin
LevantinBasin
EasternAegean Sea
Straits &Marmara Sea
CentralBlack Sea
Bilim
CTD casts
CilicianBasin
LevantinBasin
Straits &Marmara Sea
CentralBlack Sea
Bilim
NEBlack Sea
AkvanavtUrania (CNR-ISMAR)
AdriaticSea
Strait ofGibraltar& Gulf ofCadiz
AlboranSea
Regina MarisUrania (UNIV-PERP)
W esternMed.
RV Aegaio (2008)
CentralAegean Sea
Ionian Sea
CentralAegean Sea
Ionian SeaRV Aegaio
SWBlack Sea
Chemical Oceanography Unit – Southern Ocean
Assement of air-sea CO2 fluxes in the Southern Ocean (scaled from RS images)
Assement of the penetration of anthropogenic CO2 in the Southern Ocean
Belspo BELCANTO-III (http://www.co2.ulg.ac.be/belcanto/index.htm)
Chemical Oceanography Unit – Sea-ice Dynamics
Belspo BELCANTO-III (http://www.co2.ulg.ac.be/belcanto/index.htm) Sea-ice biogeochemistry in Arctic and Antarctic sea-ice (atmospheric fluxes of climatologicaly active gazes (CO2, DMS)).
Antarctic sea ice in spring and summer acts as a sink for atmospheric CO2 of about 0.025 PgC yr-1
Chemical Oceanography Unit – Lake Kivu
FNRS FRFC CAKI (http://www.co2.ulg.ac.be/kivu.htm)
Carbon cycling in a meromictic « killer » lake
Surface waters are net autotrophic but a source of CO2 due to geothermal (magmatic) inputs
POC flux = 10.3 (closing term) 59.6
6.9
44.62.2epilimnion
hypolimnion
atmosphere
rivers Ruzizi
DIC fluxesin mmol m-2 d-1
POC flux = 10.3 (closing term) 59.6
6.9
44.62.2epilimnion
hypolimnion
atmosphere
rivers Ruzizi
DIC fluxesin mmol m-2 d-1
Chemical Oceanography Unit – Modelling
Modelling of Carbon and CO2 cycles in collaboration with several groups :
- Bay of Calvi (M. Grégoire)- Ligurian Sea - Dyfamed (M. Grégoire)- Black Sea (M. Grégoire & J.-M. Beckers)- Southern Bight of the North Sea Past 50 yea rs (N. Gypens & C. Lancelot)- Southern Bight of the North Sea present 3-D (N. Gypens & G. Lacroix)- Scheldt (N. Gypens & C. Lancelot ; E. Dellhez & E. Deleersnijder)- Southern Ocean & Antarctic sea-ice (C. Lancelot & H. Goosse)