Accession Number:

ADA551797

Title:

Passive Acoustic Methods for Tracking Marine Mammals Using Widely-Spaced Bottom-Mounted Hydrophones

Descriptive Note:

Final rept. Aug 2008-Jul 2011

Corporate Author:

HAWAII UNIV HONOLULU DEPT OF OCEAN AND RESOURCES ENGINEERING

Personal Author(s):

• Nosal, Eva-Marie

Report Date:

2011-10-26

Pagination or Media Count:

8.0

Abstract:

This project developed and implemented methods to deal with two specific challenges associated with tracking marine mammals using widely-spaced bottom-mounted hydrophone arrays 1 Multiple animals whose calls cannot be easily separated or associated, and 2 Insufficient receiver coverage, in which case standard time-of-arrival TOA tracking methods fail. Clicks and long duration calls whistles or baleen whale calls were both considered. Methods were developed in collaboration with the Marine Mammal Monitoring on Navy Ranges M3R program using data from the Atlantic Undersea Test and Evaluation Center AUTEC and the Pacific Missile Range Facility PMRF. Beaked whales, minke whales, humpback whales, and sperm whales were the main species of interest.

Descriptors:

• *PASSIVE SYSTEMS
• *TRACKING
• *WHALES
• ACOUSTIC ARRAYS
• ACOUSTIC DETECTION
• AQUATIC ANIMALS
• DETECTORS
• HYDROPHONES
• MATCHED FILTERS
• OCEAN BOTTOM
• UNDERWATER

Subject Categories:

• Biological Oceanography
• Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE