The last 30-year thermohaline variability in the ... - Medclivar

Tel Aviv, ISRAEL
Trends in the western Mediterranean:
Warming and salting of the TDW
(a) Pot. Temperature and Salinity
from moorings in Tyhrrenian
Sea (>3000 dbar) dbar
(b) Profiles of Pot. Temperature and
Salinity in Tyhrrenian Sea from
the MEDATLAS DATA BASE :
(1) 1987, (2) 1990, (3-6) (3 6) 1996, (7- (7
8) 2000
(c, d) Time evolution of the TDW
characteristics (squares and
circles). Trends reported in the
literature for WMDW in the
Algero-Provencial
Algero Provencial are
represented by solid lines
(Rohling and
Bryden, 1992) and dashed lines
(Bethoux and Gentili, Gentili,
1999).
(From Fuda and Millot, 2002)
MedCLIVAR workshop
19-20 19 20 September 2011
Potential temperature (°C)
Pressure (dBar)
Potential temperature (°C)
13.00
12.99
12.98
12.97
12.96
12.95
12.94
12.93
12.92
12.91
12.90
12.89
1500
2000
2500
3000
3500
13.00
12.95
12.90
12.85
12.80
12.75
12.70
12.65
1900
2
1997 1998 1999 2000 2001 2002
Year
1
c)
a)
b)
1920
3-4-5
6
1940
1960
7-8
12.80 12.90 13.00
Pot. temp. (°C)
1980
2000
1900
1-2
d)
1920
6
3-4-5
1940
7-8
38.45 38.55
Salinity (p.s.u.)
1960
1980
2000
38.51
38.50
38.49
38.48
38.47
38.46
38.45
38.50
38.45
38.40
Salinity (p.s.u.)
Salinity (p.s.u.)