slide1 l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
200 PowerPoint Presentation
Download Presentation
200

Loading in 2 Seconds...

play fullscreen
1 / 51

200 - PowerPoint PPT Presentation


  • 104 Views
  • Uploaded on

Rip Current Statistics. Principal Reasons People Die In A Rip Current. Rip Current Formation. Types of Rip Currents. Rip Currents Safety. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 500. 500. 500. 500.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about '200' - mordecai


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Rip Current

Statistics

Principal Reasons

People Die In

A Rip Current

Rip Current

Formation

Types of

Rip Currents

Rip Currents

Safety

100

100

100

100

100

200

200

200

200

200

300

300

300

300

300

400

400

400

400

400

500

500

500

500

500

rip current statistics
Rip Current Statistics

T/F - Around 100 people die in rip currents each year U.S.

rip current statistics4
Rip Current Statistics

T/F -Most victims are in the ocean waters of:

a. Florida

b. California

c. Carolinas

d. All of the above

rip current statistics6
Rip Current Statistics

T/F - Rip currents also kill people in the Great Lakes.

rip currents statistics
Rip Currents Statistics

T/ F The chance of drowning at a beach protected by lifeguards affiliated with USLA is 1 in 18 million.

rip currents
Rip Currents

T/F More people die in rip currents than the deaths from hurricanes, lightning, flooding, and tornadoes.

rip current formation
Rip Current Formation

Deceiving, it looks like a nice calm area:

rip current formation14
Rip Current Formation

What is correct sequence of rip current formation?

  • Wave travels to the beach, waves break on sandbars, water runs off beach through a channel.

B. Waves break on sandbars, wave travels to the beach, water runs off beach through a channel.

C. Water runs off beach through a channel, wave travels to the beach, waves break on sandbars.

D. None of the above.

b waves break on sandbars wave travels to the beach water runs off beach through a channel

B. Waves break on sandbars, wave travels to the beach, water runs off beach through a channel.

rip current formation16
Rip Current Formation

The longer the period between waves:

a. The longer the waves.

b. The faster the waves move.

c. The more momentum the waves carry.

d. A and B

e. A,B, and C

rip current formation18
Rip Current Formation

__________ is proportional to amplitude or height squared

rip current formation20
Rip Current Formation

When do rip currents become dangerous?

a. During high surf conditions as the wave height and wave period increase.

b. During low surf conditions as the wave height and wave period decrease.

c.During high surf conditions as the wave height and wave period decrease.

d. During low surf conditions as the wave height and wave period increase.

types of rip currents
Types of Rip Currents
  • This type of rip current is short in duration (less than 10 minutes)
    • Enhanced by large swells with more wave energy and volume.
    • Unpredictable temporary conditions and variable locations.
types of rip currents24
Types of Rip Currents
  • This type of rip current develops along jetties, piers, and groins.
types of rip currents26
Types of Rip Currents
  • This type of rip current is dependent upon shape of coast, bays, points, reefs or sand bars.
types of rip currents28
Types of Rip Currents
  • This type of rip current occurs with long shore (parallel to beach) current
  • Occurs with long shore (parallel to beach)current
  • Pushes rip away from original location and weakens it.
types of rip currents30
Types of Rip Currents

A long shore current may push swimmer into:

  • Flash rip current
  • Permanent rip current
  • Fixed rip current
  • All of the above
rip currents safety
Rip Currents Safety

T/F Rip currents do not pull people under the water—they pull people away from the shore.

rip currents safety34
Rip Currents Safety

T/F Undertow and riptides are the same as rip currents.

rip currents safety36
Rip Currents Safety

T/F Rip currents only occur on beaches near the ocean.

rip currents safety38
Rip Currents Safety

T/F Rip Currents can be very narrow or more than 50 yards wide.

rip currents safety40
Rip Currents Safety

T/F Rip currents do not affect strong swimmers/Olympic swimmers.

principal reasons people die in a rip current44
Principal reasons people die in a rip current

T/F Unaware of hazardous conditions

principal reasons people die in a rip current50
Principal reasons people die in a rip current

T/F Panic and swim directly toward shore against the rip current, become exhausted and drown