Wave - assignment

SUPPLEMENTAL ACTIVITIES

Supplemental Activities

Activity 1

The allied naval planners were concerned that wave intensity and swell height on the beaches would pose a potential problem for the planned amphibious assault of North Africa . Walter Munk was a research assistant with the Scripps Institute in 1941 . Munk and Harlad Sverdrup developed a method for predicting waves , surf , and swell (Scripps 2001 This prediction model was used to determine the best two days for the allied amphibious invasion of North Africa (Scripps 1999 . They later trained military meteorologists in the procedure

. The techniques were used to predict conditions for the landings in North Africa , the Pacific , and later Normandy (Scripps 1999

Activity 2

LESSON TITLE : DISCOVERING THE FORMATION , BEHAVIOR , AND

DESTRUCTIVE POTENTIAL OF IMMENSE WAVES

PURPOSE : To introduce students to the formation , behavior , and destructive

power of three types of immense waves

OBJECTIVES : 1 ) To introduce the student to the tsunami , storm surge and

seiche waves

2 ) To help develop cognative reasoning

3 ) To link oral and written work with illustrations .PRE-INSTRUCTIONAL TECHNIQUES

1 ) Set up the computer and projector and make sure they are

operating

2 ) Load the power point presentation containing the illustrations INSTRUCTIONAL PROCEDURES

I . Introduction

A . Define the three types of waves

1 . Tsunami . A very large ocean wave that is caused by an

underwater earthquake or volcanic eruption

2 . Storm Surge . an abnormal rise in the level of the sea along a

coast caused by the onshore winds of a severe cyclone

3 . Seiche . an occasional and sudden oscillation of the water of a lake , bay , estuary , etc , producing fluctuations in the water level

and caused by wind , earthquakes , changes in barometric

pressure , etc

II . Tsunamis

A . Tsunamis can have heights of up to 30 m (98 ft ) and reach speeds of 950 km (589 mi ) per hour . They are characterized by

long wavelengths of up to 200 km (124 mi ) and long periods usually

between 10 and 60 minutes (Dictionary .Com Tsunami . They rise up as they approach the sea coast

B . Formation . Tsunamis are series of large waves that are formed when

an underwater disturbance occurs . This disturbance might be an

earthquake , volcano , or undersea land slide . The waves travel out in a

circle originating from the point of the disturbance

C . Behavior . Because of the very long wave lengths of tsunamis , they do

not come on shore like breaking waves Tsunami waves are more like

long lasting floods (Display Power point Slide 1 . The top wave is a

storm surge , and the bottom wave is a tsunami (Graphic : University

of Washington D . Destructive Power . Tsunamis are the most destructive of the three

types of immense waves . The energy release from the 2004 tsunami

approached the energy of 23 ,000 atomic bombs . Added to this energy

is the large amounts of debris that tsunamis carry up with them (Display Power Point slide 2 , Tsunami damage , Hilo Hawaii 1946 (Photo : Pacific Tsunami Museum Archive ) Discuss the amount of

debris visible III . Storm Surges

A...