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Tsunami buoys are anchored buoys that can detect sudden changes in undersea water pressure, and are a component of tsunami warning systems in the Pacific Tsunami Warning Center and Indian Oceans. Wave buoys measure the movement of the water surface as a wave train.
The marine optical buoy (MOBY) measures light at and very near the sea surface in a specific location over a long period of time, ...
Weather Buoy / Data Buoy / Oceanographic Buoy operated by the Marine Data Service. The first known proposal for surface weather observations at sea occurred in connection with aviation in August 1927, when Grover Loening stated that "weather stations along the ocean coupled with the development of the seaplane to have an equally long range, would result in regular ocean flights within ten years."
A typical deep-sea NDBC discus buoy in the Gulf of Mexico. NDBC employs engineers, meteorologists, oceanographers, computer scientists, and other professionals.. NDBC provides hourly observations from a network of about 90 buoys and 60 Coastal Marine Automated Network (C-MAN) stations to help meet these needs.
Graphical and textual descriptions of navigational light sequences and colours are displayed on nautical charts and in Light Lists with the chart symbol for a lighthouse, lightvessel, buoy or sea mark with a light on it. Different lights use different colours, frequencies and light patterns, so mariners can identify which light they are seeing. [1]
They are also known as fairway buoys and clear water buoys. They are recognisable by their red-and-white vertical stripes and commonly bear a top sign in shape of a red ball. They either flash Morse code "A" (di-dah), or one long flash, occulting (more light than dark) or isophase (equal light and dark) every 10 seconds (L Fl 10s).
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