40 
“Uy a sn. aie 
UL bo Sohesiacme en es® BOT No os 
J Z : Cow ate 
Yj a 
SALT 
REJECTION 
4sS>o0 
Vapro 
OT=0 
WY Vi V1 
Fig. 2. Schematic representation of a possible mechanism for deep convection, with sea ice for- 
mation the primary causal factor. Salt rejection during ice formation induces convection by 
increasing the surface water density. 
Ya 
MOISTURE ie: 
LOSS 
RADIATIVE 
EVAPORATION 
4 
aaa Ss ; 
4S>0 
Varro 
ST<0 
Fig. 3. Schematic representation of a possible mechanism for deep convection, with the pre- 
sence of sea ice a contributing factor. Radiative cooling as air passes over sea ice intensifies 
the air/sea contrast beyond the ice edge. 
