Gulf of California — Roden 41 
Fig. 1 6 . Distribution of wind temperature and salinity at the sea surface in February and March, 1939. 
and oxygen-poor water entering the Gulf from 
the south. The tongue along Baja California 
has possibly its origin in the northern part of 
the Gulf, because it is of nearly the same 
temperature, salinity and oxygen as the water 
of the northern area. The inflowing water 
mass shows the same characteritsics as the 
equatorial Pacific water (Fig. 9) and represents 
a compensation flow to replace the water lost 
by evaporation and wind drift out of the Gulf. 
CONCLUSIONS 
The Gulf of California remains oceano- 
graphically unknown to a great extent. The 
results that have been presented here are based 
on meager data and conclusions drawn from 
such data may have to be modified when more 
accurate and more complete data are available. 
Conditions in the Gulf are dependent upon 
the conditions in the atmosphere and any 
changes that take place in the atmosphere 
will also be reflected in the Gulf. The sub- 
marine topography and the orientation of the 
shoreline also influence the circulation and 
hence the distribution of properties. 
The bulk of the water found in the Gulf 
shows properties very similar to the Pacific 
Equatorial water mass. This water mass upon 
entering the Gulf is modified at the surface 
by extensive evaporation which increases its 
