Our users have increasingly been inquiring about ROPOS’ ability to perform multibeam surveys during their expeditions. The Korea Ocean Research and Development Institute (KORDI), one of CSSF’s newest clients, also had this specific request for the first leg of their January/February 2012 expedition in the South Pacific. Using ROPOS, KORDI needed to survey three distinct study areas covering a total of approximately 5km2 in as much detail as possible.
In response to their need, CSSF designed and built a multibeam skid, seen in Figure 1, which attaches directly to ROPOS’ through-frame lift system. The multibeam skid was designed with the chief objective to bring all required navigation sensors in a clear frame of reference in order to: (1) reduce any initial offset errors between sensors to a minimum, and (2) to keep the offsets consistent should the skid need to be removed to complete other operational goals.
The skid uses the Reson Seabat 7125 ROV2 with both the 200 and 400 kHz projectors. In addition, it also houses the following required sensors and equipment: