1. CO2 EXCHANGE BETWEEN WESTERN MEDITERRANEAN
WORKPACKAGE 13.-
Regional assessment for the West-Mediterranean
CO2 EXCHANGE BETWEEN WESTERN MEDITERRANEAN
AND ATLANTIC OCEAN
STRAIT OF GIBRALTAR
Emma Huertas

2. Mediterranean Water (MOW) Atlantic-Mediterranean Interface (AMI)
Surface Atlantic Water
(SAW)
Inflow
Mediterranean Water
(MOW)
Outflow

3. STRAIT OF GIBRALTAR
(MOW)
(SAW)
(AMI)
(NACW)

4. Five campaigns have been performed from month 1 (January 2005) to
month 24 (Dec. 2006) on board the Moroccan RV Al Amir Moulay Abdallah
Three sampling cruises on board the Spanish BIO García del Cid
A meeting on data quality was celebrated in Cádiz on June 06.
CARBOGIB1 ( )
CARBOGIB2 ( )
CARBOGIB3 ( )
CARBOGIB4 ( )
CARBOGIB5 ( )
CARBOGIB6 (NEXT WEEK) G3
CB1
CB5
CB2
CB4
Two sampling sections:
CAMARINAL
GIFT (GIbraltar Fixed Time series)

5. VARIABLES Temperature & Salinity Total alkalinity pH Dissolved Oxygen
DOC-TDN
Inorganic nutrients & Chl a
CNH

6. MEDITERRANEAN WATERS ARE MUCH MORE ALKALINE
CARBOGIB1
CARBOGIB2
CARBOGIB3
r2=0.902
CARBOGIB4
r2=0.957
CARBOGIB5

7. pH DECREASES TOWARDS THE MEDITERRANEAN
CARBOGIB1
CARBOGIB4
CARBOGIB5
NASW
MOW
NACW

8. Chlorophyll (mgl-1)

9. Nitrate (mM)

10. Phosphate (mM)

11. [O2] (mg L-1)
CARBOGIB1
CARBOGIB2
CARBOGIB3
CARBOGIB4
CARBOGIB5

12. STRAIT OF GIBRALTAR CARBOGIB1 CARBOGIB2 CARBOGIB3 CARBOGIB4 CARBOGIB4

13. INFLOW ATLANTIC MEDITERRANEAN OUTFLOW ESPARTEL G1 CAMARINAL G2 G3
0.8 Sv
1 Sv
INTERFACE
ATLANTIC
MEDITERRANEAN
OUTFLOW
1 Sv
0.8 Sv

14. MO: Mediterranean outflow
AI: Atlantic inflow
MO: García-Lafuente in situ measurements
AI: 0,69Sv (Sarmiento et al. 1988)
MO: 0,65 Sv
AI: 0,69Sv (Sarmiento et al. 1988)
MO: García-Lafuente in situ measurements
AI: 0,78Sv (Tsimplis & Bryden 2000)

15. INTERPOLATED VALUES

16. INTERPOLATED INORGANIC CARBON FLUXES IN THE
MEDITERRANEAN OUTFLOW THROUGH THE STRAIT OF GIBRALTAR