696
Herterich et al.
Modem Atlantic Meridional Overturning (Sv)
5~~~~~~~~~~~~~~~~~~~-.c
1000
1500
2000~~~~~~~~~~~~~~~~:-:
:[2500 j
,6 3000
0.
~ 3500
4000
4500
5000
5500
6000
·30 ·20 ·10 0 10 20 30 40 50 60 70 80 90
O~~~~~~~~~~l
500
~
1000
1500
2000
:[ 2500 ~~~~~~~~~~~~
,5 3000 J
0.
~ 3500
4000
4500
5000
5500
6000
·30 ·20 ·10 0 10 20 30 40 50 60 70 80 90
Lalitude
Fig. 5. (left) Meridional overturning stream
function (in units of Sv or 10· m' S- I ) corresponding to the modem and LGM flow fields
obtained by the LSG ocean model.
Fig. 6. (lower) Northward transport of heat (in
units ofPW or 10" W) as a function oflatitude in the global, Atlantic and Pacific +
Indian Oceans, from simulations by the LSG
ocean model. The glacial case (solid curves)
is compared to the modern case (dashed
curves). South of32° N (Cape of Good Hope)
the global heat transport cannot be broken
down among the individual basins.
LSG heat transport
~
e:.
t
0
c. (/)
c
g
ro Ql
.r::
'E t 3:
.r::
t
0
Z
1.5 .---~-,---,---,--~-,--~-..,--~-,--~----,
0.5
,
\
\
- 0.5
"
-1.5
-90
-60
-30
.....-... Global, glacial
IS - - -£> Global, modern
-----. Atlantic, glacial
Go - - '" Atlantic, modern
----- Pacific + Indian, glacial
G - - -£J Pacific + Indian, modern
o
Latitude (degrees)
30
60
90