Current meter mooring

Current meter mooring. This is a fixed mooring that can accommodate many instruments, including current meters, temperature and salinity recorders, and chlorophyll measurement devices (fluorometers). These are arranged at predetermined depths, and a sub-surface buoy and elastic tether keep the wire taut. The surface buoy transmits data to land via satellites; radar reflectors and lights help to prevent collisions from ships.

Diagram of satellite communications

These buoys store information from the attached instruments and also let ships know there are instruments in the water. Data from the buoy are transmitted via satellite to a ground station where the information is stored in computers. Scientists can log into the computer, also by satellite on land or from the ship, and download the information. The satellite passes over the buoy twice per day. Many of these buoys are kept in place for about a year, which allows for remote monitoring of the bank.

From here, continue with:
  • Return to Cruise Overview
  • Cruise Preparations: Planning a research cruise.
  • Satellite-tracked Drifters: Following water (and plankton) movements.
  • MOCNESS: Multi-level underwater net sampling system for collecting plankton.
  • Plankton Research: How plankton are stored and studied on board.
  • Conductivity, Temperature, Depth Testing: Obtaining water samples to determine conductivity, temperature, and depth.
  • Links to more research-related sites, as well as detailed, live data from buoys in the Gulf of Maine.

  • On Location Home Page