A new trawl-resistant bottom mount to support hydrographic current measurement requirements

Author

Cumbee, S.C.

Author_Institution

Naval Oceanogr. Office, Stennis Space Center, MS

Volume

4

fYear

2001

fDate

2001

Firstpage

2459

Abstract

The Naval Oceanographic Office (NAVO-CEANO) has utilized trawl-resistant bottom mounts (TRBMs) of various configurations since 1992. Deployment weight of some initial packages was 2,850 pounds confined within a 13.5-feet length, truncated pyramid design. Since 1998, cone-shaped units of 375 pounds and 7 feet in diameter have been more frequently utilized. Design of the earlier TRBMs was based on optimal trawl resistance and the available doppler current profiler technology. Acquiring current measurements to support hydrography with those packages was limited due to specialized deployment equipment and space required on the hydrographic vessels. The solution was to design a miniaturized TRBM, utilizing the RD Instruments Workhorse Monitor Acoustic Doppler Current Profiler (WHM-ADCP) and a separate battery pack lying sideways. Initially, the miniaturized TRBM will be used to acquire current measurements to meet International Hydrographic Organization (IHO) Class A standards aboard the hydrographic ships USNS JOHN MCDONNELL (T-AGS 51) and USNS LITTLEHALES (T-AGS 52)

Keywords

oceanographic equipment; ADCP; NAVOCEANO; Naval Oceanographic Office; acoustic Doppler current profiler; bottom mount; current; current meter; dynamics; equipment; hydrographic requirements; instrument; ocean; trawl resistant design; truncated pyramid; Batteries; Current measurement; Extraterrestrial measurements; Instruments; Marine vehicles; Measurement standards; Monitoring; Packaging machines; Space technology; Standards organizations;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS, 2001. MTS/IEEE Conference and Exhibition

Conference_Location

Honolulu, HI

Print_ISBN

0-933957-28-9

Type

conf

DOI

10.1109/OCEANS.2001.968385

Filename

968385