Catastrophic Waves

1.  Presented By : Rajesh V. Chudasama
Reg. No : 3111017003, 3rd Sem , B.F.Sc
 Submitted To : Dr. Ritesh V. Borichangar
Nodal Officer & Asso. Prof, COF, NAU
Subject :-
Fishery Oceanography (AEM-203)
Catastrophic Waves

2. Catastrophic waves

3. • Something that is catastrophic involves or causes a sudden
terrible disaster.
• A tidal wave caused by the earthquake hit the coast causing
catastrophic damage.
• These waves are generated less frequently, but they have
more damaging effect.
• The physics of a tsunami. Tsunamis can
have wavelengths ranging from 10 to 500 km
and wave periods of up to an hour.

4. • Tsunamis are giant waves caused by earthquakes or volcanic
eruptions under the sea.
• In the open ocean, such waves are barely noticeable even though
they may be travelling at 700 km/h, but on reaching shallow water
they build up to heights of more than 30 m and can cause severe
damage in coastal areas.
1. Tsunamis 3. Storm surgees
2. Landslide surges
Catastrophic waves
1. Tsunamis :-

5. 2. Landslide surges :-
• Rise or pulling up of water
against shore produced by land
slide.

6. • Storm surge is caused primarily by the strong winds hurricane or tropical
storm. The low pressure of the storm has minimal contribution.
• Australia on March 5, 1899, is generally credited with the world record
for storm surge.
• The cyclone's storm surge is variously listed at 13 - 14.6 meters. The
Category 5 cyclone was a monster-with sustained winds in excess of 175
mph and a central pressure between 880 and 914 mb.
• Mahina killed at least 307 people.
3. Storm surges :-

7. • https://www.collinsdictionary.com/dictionary/e
nglish/catastrophic
• https://www.weather.gov/media/owlie/surge_i
ntro.pdf
• https://oceanservice.noaa.gov/facts/tsunami.ht
ml
References :