Samoa - North East Upolu Bathymetry Chart No: 5, 1 to 50 000

This record holds the bathymetry chart of the North Eastern foreshore areas of Upolu, Samoa.
The chart is the result of the multibeam bathymetry survey that was undertaken by the Applied Geoscience and Technology Division (SOPAC) of SPC around the North Eastern island of Upolu Samoa in the EU-SOPAC Samoa Survey. High-resolution bathymetric mapping survey was carried out ,resulting in the acquisition of over 2754 line-km of MBES data for the whole of the Samoa Survey. The entire survey achieved 100% coverage of the seafloor from approximately 50 m depth in the nearshore area to an average offshore distance of 10 km, reaching water depths of some 1500 m. The result of survey in this area is presented as Chart 5 of the Samoa High resolution bathymetric survey.This work was initiated by the SOPAC/EU Reducing Vulnerability of Pacific ACP States Project (Task no.: NR 1.1.1). Bathymetry chart can be downloaded from this record under the Distribution Infor section with appropriate permission from the Secretariat.The objective of the survey was to investigate the seabed and provide information about water depths around the islands using a multibeam echosounder (MBES). These new bathymetric maps provide a descriptive picture of the ocean bottom terrain, vividly revealing the size, shape and distribution of underwater features. They serve as the basic tool for scientific, engineering, marine geophysical and environmental studies, as well as for marine and coastal resource management.DESCRIPTION of MORPHOLOGICAL FEATURES on the BATHYMETRIC CHART:The shelf and shelf break continues as described above. The escarpment described from Charts 3 and 4 above is less pronounced in the area shown in Chart 5. Numerous small channels are seen originating from the base of theterrace.