Coast Survey's navigation response teams (NRTs) play a key role in the nation's maritime emergency readiness, scanning the seafloor with sonar systems to locate underwater hazards to navigation. In between deployments for maritime emergencies, NRTs collect hydrographic data for updating nautical charts. The following are projects slated for 2016 in response to requests from mariners around the country:
Once the navigation response teams process and submit the data acquired during the surveys, the information is further processed in Coast Survey's Atlantic and Pacific hydrographic branches, and then submitted to NOAA cartographers for application to the charts. The turnaround time for updating the chart depends on the update calendars for each regional cartographic branch. If the NRTs find any dangers to navigation, the information will be relayed to mariners through the Local Notice to Mariners postings and will be applied to NOAA's electronic navigational charts (NOAA ENC®), online products, and print-on-demand paper charts. Critical updates will be applied to charts more quickly than normal depth adjustments.
Coast Survey strategically places six navigation response teams (NRT1-NRT6) around the country. While 80 percent of their time is spent acquiring data for chart updates, they must also maintain a state of readiness for rapid mobilization for response after emergencies.