Using the NAVOCEANO wide swath sidescan sonar Seamap-C to locate and differentiate man-made objects from natural features on the seafloor

Author

Joseph, Devorah ; White, Randy ; Bethge, Thomas ; Palshook, Jeffrey ; Ingram, Carey ; Rumish, Bruce

Author_Institution

Naval Oceanogr. Office, Stennis Space Center, MS, USA

fYear

2000

fDate

2000

Firstpage

37

Lastpage

40

Abstract

The Naval Oceanographic Office (NAVOCEANO) and Nauticos Corporation conducted a Seamap-C survey that delineated small regions of high reflectivity material in an abyssal plain northwest of Midway Atoll. The survey in the Midway area was based on a Nauticos Corporation RENAV^TM analysis of the possible location of the Japanese carrier, Kaga, sunk during the Battle of Midway in June, 1942. Seamap-C imaged three potential targets for further investigation with the higher frequency EG&G 960 system. A subsequent operation in the Midway area was conducted some months later using NAVOCEANO´s Towed Oceanographic Survey System with higher resolution sidescan sonar (50/500 kHz), video cameras, and digital still photography. The optical survey identified a debris field, composed of twisted wreckage and the associated debris from one of the Japanese aircraft carriers sunk during the Battle of Midway

Keywords

buried object detection; sonar target recognition; Battle of Midway; Kaga Japanese carrier; Midway Atoll; NAVOCEANO; Nauticos Corporation; Naval Oceanographic Office; deep water target detection; object detection; sidescan sonar Seamap-C; video cameras; wreckage; Aircraft; Frequency; Geology; Instruments; Materials testing; Optical scattering; Reflectivity; Sea floor; Sonar; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Underwater Technology, 2000. UT 00. Proceedings of the 2000 International Symposium on

Conference_Location

Tokyo

Print_ISBN

0-7803-6378-7

Type

conf

DOI

10.1109/UT.2000.852512

Filename

852512