There are features from the anchorage spots that are still plotted as well as pilots want verification or disapproval with the characteristics. The US Coastline Guard would also like baseline data for upcoming preparing in the area. Salinity alongside the coast varies with powerful gradients. There is fresh water inflow https://hydrographicsurvey29506.mybjjblog.com/a-secret-weapon-for-hydrographic-survey-45409718