Seminario Acción Especial CLIVAR-España. Water masses and thermohaline variability in the Atlantic Ocean: consequences for C ANT accumulation. Instituto Nacional de Meteorología , Madrid 14-15, Febrero, 2005. Fiz F. Pérez, Aida F. Ríos, Marta Álvarez, Instituto de Investigaciones Marinas
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Water masses and thermohaline variability in the Atlantic Ocean: consequences for CANT accumulation.
Instituto Nacional de Meteorología, Madrid
14-15, Febrero, 2005
Fiz F. Pérez, Aida F. Ríos, Marta Álvarez,
Instituto de Investigaciones Marinas
Decadal changes of -S relationship of the Eastern North Atlantic Central Water (ENAW) by Pérez, F.F., A.F. Ríos, B.A. King, R.T. Pollard.Deep-Sea Research, 1995.
Carbon dioxide along WOCE line A14: Water masses characterization and anthropogenic entry by Ríos, A. F.et al.
Journal Geophysical Research, Vol. 108 2003.
Physical and biogeochemical transport structure in the North Atlantic subpolar gyre by Álvarez M., F.F. Pérez, H. Bryden, A.F. Ríos.
Journal of Geophysical Research109 2004
The unaccounted role of Mediterranean water in the draw-down of anthropogenic carbon by
Álvarez M. Fiz F. Pérez, D. R. Shoosmith and H. L. Bryden.
Journal of Geophysical Research in revision
Pérez et al. ,2000.
Ríos et al., 2003
Anthropogenic CO2 and CFC-age along the AAIW maximum
Ríos et al., 2003
at 1000 m
Alvarez et al. JGR
The MW is formed from 2.3 Sv of ENACW and 0.3 Sv of AAIW.
Part of this transformation (0.7 Sv) occurs inside the Mediterranean Sea
2.7 Sv MW
0.7 Sv ENACW
0.3 Sv LSW
-0.3 Sv AA
155 kmol.s-1 of Anthropogenic CO2
The MW formation drives a Cant draw-down and a salinity increase of MW because the ENACW entrained when MW is formed is saturated of Cant and its salinity is also increasing in 0.1 per decade.
This mechanism could be a negative feedback in future climate scenarios.
Relevance of the Subpolar North Atlantic:
- area of deep water formation,
- large capacity to store and transport heat and CO2.
WOCE A25 or 4x section
- August-September 1997
- UK WOCE section from Vigo to Cape Farewell,
Water Masses along 4x: Mass (Sv) and CANT Trps (kmol/s)
Alvarez et al. 2004