60
,
,
If
"
,
- ---- -- ----- -- -~--, ,
. , , . .
\
.
a - . . --\~ -- ------ ------\
-5.0
, ,
-2.5
0.0
2.5
, ,
5.0
7.5 10.0 12.5 15.0 17 .5
Sea surface temperature
March
20.0
. . ~ ........
\
\
\
\
\
,
\
22.5
\
\
\
\
OBSERVATIONS
25.0 27 .5 30.0