answersLogoWhite

0

First off, it's important to be clear about the fact that tsunamis themselves can not generally be mitigated or reduced in intensity. Ocean Data Aquisition System (ODAS) buoys comprise part of a tsunami early warning system. The earlier the tsunamis are detected, the earlier that the population and infrastructure on threatened Coastlines can be warned, hopefully lessening damage and loss of life. Tsunamis are formed as the result of seismic events which transfer energy to the surrounding sea. Thus, the earliest means of detecting them is through seismic (i.e. earthquake) measurement. A particular seismic event is a good predictor of an associated tsunami, depending on its intensity and the location of its epicenter. ODAS buoys supplement this by measuring characteristics of the sea waves which are generated. An ODAS buoy can measure the wave height (3d position at any given time), and also the period between consecutive waves. This provides a good indication of both the destructive potential of a particular wave train, and its propagation time (i.e. how long the waves will take to reach land). This information is invaluable if it can provide advance notice to a threatened area. Other ODAS capabilities may include acoustic measurement (direct observation of seismic activity), sea salinity, temperature, wind direction and velocity, current speed and direction, etc., for weather monitoring and prediction. At sea, a seismic event which generates a tsunami may not even be noticeable from a seaborne observer, since the resultant wavelength is generally very long. Imagine floating in a small boat while a 20 meter high wave passes beneath you - if the wavelength is short, such a wave would obviously be devastating. If, however, a wave this high took a full minute to pass beneath you, your change in elevation would occur so slowly that it may not even be noticed. Long wavelength, high energy waves like this are typical of tsunamis. Thus, the ODAS buoys provide a means of detecting and describing them well out at sea - hopefully in sufficient time to prepare for their landfall.

User Avatar

Wiki User

18y ago

What else can I help you with?

Related Questions

What instrument is used to detect tsunami?

A tsunami detection buoy is one of the primary instruments used to detect tsunamis. These buoys are equipped with sensors that can detect changes in water pressure caused by a tsunami wave passing overhead. The data collected by these buoys is then transmitted to monitoring stations to provide early warnings.


What is a homophone for boy?

Buoy is a homophone for boy. A buoy is a floating object used to mark a location in a body of water.


What is an anchor buoy?

An anchor buoy is a small buoy attached to an anchor by a light line and used to indicate the position of an anchor.


When was tsunami warning system first used?

The first tsunami warning system was established in the Pacific Ocean in 1948, following the destructive tsunami that occurred in the region in 1946. The system was put in place to help detect and warn about potential tsunamis to minimize their impact on coastal communities.


A floating marker used as a warning or a guide for ships?

The word is buoy.


What is used to fight against tsunami?

You can't fight against tsunami's. You can only flee. That's why countries with risk of tsunami's have invested in a tsunami-warning system. But a well-built house always helps in comperison with cheap, slum-like buildings.


What is a Yellow buoy used for?

Achoragae area


What is does a number 4 buoy mean?

A number 4 buoy typically indicates a lateral marker used in maritime navigation, signifying the left side of a channel when entering from the sea. It is part of the IALA (International Association of Lighthouse Authorities) buoyage system, specifically following the "IALA A" system, which is used in most parts of the world. The buoy is usually colored red or has a red band and may also feature a specific shape, such as a can or cylinder, to help mariners identify it easily.


What is bifurcation buoy?

a horizontally marked red and black buoy used to mark the division of sea lanes when moving inward from the sea.


What stripes is used todesignates a mooring buoy?

blue stripe


You see a white buoy with a blue band What type of buoy is this?

This is a mooring buoy or mooring ball. They are used in either a public or private capacity to moor your vessel to. In a way it acts as an anchor for your vessel. Instead of dropping an anchor though, you simply pull up to the buoy and slip on a line (rope) and make fast. It also the ONLY acceptable buoy you may do this to.


What exactly is a radon mitigation?

Radon mitigation is any process used to reduce radon concentrations in the breathing zones of occupied buildings. So in other words, anything you do to reduce the Radon levels in an occupied building is considered Radon Mitigation