Morphological Characteristics of the Bonny and Cross River (Calabar) Estuaries in Nigeria: Implications for Navigation and Environmental Hazards - The Land/Ocean Interactions in the Coastal Zone of West and Central Africa - page 90

Table 1 Summary of some ADCP records in Bonny and Cross River estuaries (Source Field survey)
River estuary

Total discharge fluxes (m 3 /s) Date of survey Max surface current vel. (m/s) Max depth along transect (m)

Bonny-peterside 18/12/11 1.81 17.2 16,840.23

Bonny-peterside 19/11/10 2.589 18.64 11,523.63

Calabar estuary 23/12/11 0.216 16.4 12,936.11

Calabar estuary 22/11/10 1.87 15.6 12,481.56

Fig. 5 ADCP current data
showing bathymetric
configuration and velocity along
a profile line in the Bonny estuary
(Source Field survey)

Near Surface Current Velocity (m/s) BONNY River. Bin: 1.9 - 2.5m

4

2

0

-2

-4

0 500 1000 1500 2000 2500 3000m

Mid Depth. Bin: 5.0 - 8.0m

4

2

0

-2

-4

0 500 1000 1500 2000 2500 3000m

Near Bottom. Bin: 9.0 - 14m

2

0

-2

-4

-6

0 500 1000 1500 2000 2500 3000m