profiles) of the adjacent shorelines were made by CERC during the short-term 

 experiments and at other times, and were considered the third component of 

 the data collection effort. 



KEY 



T - TIDE GAGE 



p • PRESSURE SENSOR 



UV - 2D VELOCmr 



DWG - DIRECTIONAL WAVE GAGE 



SONAR - EROSION/ACCRETION 



OBfi - OPTICAL GACKSCAI 



SENSOR 

 ADCP - ACOUSTIC 



CURRENT 



(3D VELOCI 



AND 



t - TEMPERATU1 



SONAR 



SOBS 



3UV 



P. t 



(miG^ 



Figure 3. Location of instruments deployed at the mouth of the Colorado 

 River (from White 1994) 



Other important data were obtained from SWG. These data primarily 

 included numerous bathymetric surveys of the impoundment basin and 

 dredging records from the impoundment basin and mouth of the river. 



Data collection 



Long-term deployments 



Continuous, long-term measurements of waves and water levels were 

 conducted at the project site from 1990 to 1994 using two types of 

 self-recording sensor packages, deployed in 10-m water depths approximately 

 3.2 km offshore of the northeast jetty. The first wave gage type was a 

 combination of a strain gage pressure sensor (P) and a co-located 

 electromagnetic current meter (ECM) to measure the two components of 

 horizontal water velocity (u,v), known as a Puv gage. The Puvs were 

 contained on a bottom-mounted, trawler-resistant steel pod. 



Chapter 3 MCCP Monitoring Plan and Implementation 



11 



