Sightings for AN/AQS-20 Sonar Test Event - April-May 2013

Original provider: HDR Environmental, Operations and Construction, Inc. Dataset credits: The U.S. Navy Marine Species Monitoring Program Abstract: Aerial surveys for marine-species monitoring occurred during 27 April through 02 May 2013 for an AN/AQS-20 (Q-20) sonar system test event. These surveys were conducted off the west coast of Florida in the Naval Surface Warfare Center Panama City Division (NSWC PCD) Study Area in the Gulf of Mexico. The Q-20 is a high-frequency active sonar (HFAS) system used in mine detection and countermeasures. Purpose: U.S. Navy protected marine species monitoring during Q-20 sonar testing