I 



- >*& 



JIM*r 



• mm  . . 1». _ 



Figure 2.12. Tijuana Estuary on January 1, 1985 (from Aerial Fotobank). Compare locations of 

 main river channel (R) and agricultural activities (A) with Figure 2.8. Traces of horse-raising 

 activities (H) are visible near the Border Field State Park overlook (O). Estuarine habitat types, 

 drawn from this photo, are mapped in Figure 1.3. 



Another major flood period occurred in 

 1983, when streamflows were above average 

 in February and of record volume from March 

 through December. Rainfall was 2.4x average 

 in February, 3.8x average in March, and 2.3x 

 average in April 1983 (at Tijuana, Baja 



California, Mexico). Inflows to Rodriguez 

 Reservoir were over 10x average during 

 1983. Heavy streamflows in winter and 

 spring were the immediate effect of rainfall; 

 the high summer flows were due to discharges 

 from Rodriguez Reservoir. Flows in 1983 



21 



