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Q: Why is it important to determine the location of shoaling areas in an unfamiliar body of water?
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Why are tsunamis always shallow water waves?

Probably the worst case scenario is an ocean-travelling tsunami that hits quickly shoaling water (goes from very deep to very shallow) in a funnel-shaped bay. This happened in the Alaska tsunami (can't recall the town name!), where the wave didn't have time to dissipate energy over a gently sloping bottom, and so the full force of the wave hit the bay. As the mouth of the bay was wider than the beach in this case, the energy was even more concentrated. In this record case, it appears the waters climbed at least 1,000ft up the walls of the canyon (with indications it may have gone much higher). However, considering all the world's coastlines, this worst case is rare. And in areas that have long areas of gentle shoaling up from abyssal deeps, you'll find that tsunamis won't do any damage at all, unless the causal event occurs directly close offshore .


What is the nervous system of a Cephalopod?

Cephalopods are widely regarded as the most intelligent of the invertebrates, and have well developed senses and large brains (larger than those of gastropods). The nervous system of cephalopods is the most complex of the invertebrates and cephalopods is the most complex of the invertebrates and their brain-to-body-mass ratio falls between that of warm- and cold-blooded vertebrates.The brain is protected in a cartilaginous cranium. The giant nerve fibers of the cephalopod mantle have been widely used as experimental material in neurophysiology for many years; their large diameter (due to lack of myelination) makes them relatively easy to study. Cephalopods are social creatures; when isolated from their own kind, they will take to shoaling with fish. Some cephalopods are able to fly through air for distances up to 50 m. While the organisms are not particularly aerodynamic, they achieve these rather impressive ranges by use of jet-propulsion; water continues to be expelled from the funnel while the organism is in flight.


What is the temperature of a tsunami?

It can any temperature that would would commonly encounter in water on Earth. Tsunamis are not dependent on water temperature and in most cases, the circumstance surrounding them would not affect temperature.


Is a tsunami the most dangerous kind of weather?

A tsunami is the most DANGEROUS wave in the entire USA. It's 300 feet tall and 150 miles wide! While floods are almost as dangerous as tsunamis. Floods suck up everything in their way like tornadoes.A slight correction...The "height" of a tsunami varies based on many variables, as does the "width". Basically, it's the amount of force that creates the wave, compounded by the wave eventually hitting the bottom of the sea and pumping up. The size, shape and contour of the beach plays a huge part in determining the height of the wave when it crests. In mid ocean, even near the source, the wave may only reach a height of 1ft, or may not be detectable at all. As to "width", it helps to envision this process by tossing a pebble in the middle of a pond. As the pressure wave propagates, it also dissipates in power, as more and more area becomes involved. The tsunami also dumps energy as it rubs on the bottom, so if your waveform is, say, 100ft, a long trip over water of especially 80ft (approx) or less removes energy from the wave as heat, derivative of friction.A 300ft tall tsunami is very rare indeed, and depends entirely on land contour. A funnel-shaped bay that comes up quickly (or shelves) out of deep water is the most likely scenario for increased wave height. On the other hand, gradually shoaling water (think the US Carolinas as an example) come up gradually from the abyssal depths -- the added friction of crossing this area towards shore make the Carolinas nearly tsunami-proof.Floods on the other hand, occur very very often. The cause can be localized rainfall, or runoff from mountainous regions, or it can be caused by local or distant heavy weather, creating a storm surge. Historically, floods have caused far greater loss of life and assets.


What in the main feature of a tsunamis?

A Tsunami is a large wave. The name actually means 'Harbour wave' in Japanese. The wave can travel large distances, at high speed and only build up into a tall wave, when it hits shallow water. Can be caused by underwater earthquakes or land slippage.

Related questions

When operating on an unfamiliar body of water why is it important to determine the location of shoaling areas?

Because it does and u will get stuck


Before operating on an unfamiliar body of water why is it important to determine the location of shoaling areas?

They are often difficult to spot even with local charts


What is a shoaling wave?

no such thing in Pokemon


Do rainbow trout shoal?

I've fished Rainbow Trout all my life in Utah and I have never seen nor experienced Rainbow shoaling. In fact, I have never witnessed any of the other trout species shoaling.


What White Flippered Penguins eat?

They feed on small shoaling fish or squid, and less often on crustaceans.


What is shoaling in nemo?

Fish Schooling: the two best examples of this in this movie are the "school bus" with Mr. Ray and the Moonfish that make pictures.


What has the author Raed Hana written?

Raed Hana has written: 'A lab investigation of a wave flume and the shoaling of waves on a model beach'


What a school fish looks like when it is pregnant.?

I am not aware of any "schooling" or "shoaling" fish that is not an egg layer. This would imply that these species of fish do not get pregnant.


Your neon tetra keeps hiding what does this mean?

Neon Tetras are shoaling fish and it will be absolutely terrified if it is alone. They should always be kept in groups of no less than 4 fish.


What has the author Tamsen M Smith written?

Tamsen M. Smith has written: 'Corpus Christi Inner Harbor shoaling investigation' -- subject(s): Sedimentation and deposition, Harbors


What is shoaling?

A shoal, sandbar (or just bar in context), or sandbank is a somewhat linear landform within or extending into a body of water, typically composed of sand, silt or small pebbles.


What has the author William G Grosskopf written?

William G. Grosskopf has written: 'Calculation of wave attenuation due to friction and shoaling' -- subject(s): Water waves, Banks (Oceanography) 'Energy losses of waves in shallow water' -- subject(s): Water waves, Wave functions