Accession Number:

ADA399201

Title:

Low Cost Modular Telemetry for Coastal Time-Series Data

Descriptive Note:

Final rept. Jul 1999-30 Jun 2001

Corporate Author:

WOODS HOLE OCEANOGRAPHIC INSTITUTION MA DEPT OF APPLIED OCEAN PHYSICS AND ENGINEERING

Personal Author(s):

• Frye, Daniel E.
• Geyer, W. R.
• Butman, Bradford

Report Date:

2002-02-11

Pagination or Media Count:

7.0

Abstract:

The purpose of this project was to develop and demonstrate a low cost, easy to operate system for collecting and disseminating coastal ocean data. The system that was developed uses acoustic modems to transfer data from instruments on the seafloor to small surface buoys or existing navigation buoys that are equipped with acoustic receivers and RF links. Data received by the buoys acoustic receiver are forwarded via the RF link to a station on shore. The shore station transfers the received data via landline to WHOl where it is automatically placed on a project website that is accessible to all. Key elements in this system include 1 low cost acoustic transmitters that are deployed with each instrument, 2 small, easy to deploy surface buoys that carry the acoustic receivers and RF links, 3 a network architecture that allows a single surface buoy to receive data from a number of subsurface instruments, and 4 a back channel to the surface buoys from the laboratory at WHOl so that the acoustic receivers can be modified without requiring a visit to the site.

Descriptors:

• *OCEANOGRAPHIC DATA
• *TELEMETER SYSTEMS
• COASTAL REGIONS
• LOW COSTS
• TIME SERIES ANALYSIS
• RADIO LINKS
• ACOUSTIC EQUIPMENT
• MODEMS
• OCEAN BOTTOM
• TELEMETERING TRANSMITTERS
• NETWORK ARCHITECTURE

Subject Categories:

• Physical and Dynamic Oceanography
• Telemetry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE