Savage Earth: Predicting Tsunamis
Waves
` 1) Oceanic waves mean the forward movements of the ocean’s water caused by oscillation of water particles by frictional drag of wind over the Earth’s surface. It can be caused by the movement of Earth’s crust aka an earthquake. Like every wave, oceanic waves have highest and lowest points. The peak of thewave is called crest while the lowest point is called trough. The wavelength is the horizontal distance between two troughs or crests.
2)The Largest and most dangerous of oceanic waves is called tsunami or tidal waves. It’s wave could reach up to thousands of feet tall. 3)Tsunami is word originated from japan, and it’s equivalent in English is called “seismic sea waves.” There are many factors causing Tsunami. Most tsunamis that has …show more content…
"BBC - Humber - Features - Your Quake Stories." BBC - Homepage. Web. 04 May 2011. . 6. "Savage Earth: Predicting Tsunamis." PBS: Public Broadcasting Service. Web. 04 May 2011. .
7) Satellite usage to predict Tsunamis are also becoming more popular these last few decades. Satellites are the more complex method used currently. The satellite will capture the movement of an ongoing tsunami and send it back to the government. Some countries like Japan and States has started to use sensors that stays on the seafloor and detect the slight touch of a tsunami passing overhead. These bottom-pressure sensors are connected by a cable stretching out from its coastlines. When the sensors sensed a tsunami going on, the buoy anchored nearest will relay a warning message to the shore via the satellite.
b)
8) Using satellite to predict tsunamis is very accurate since it detects an ongoing tsunami and not predicts which sometimes is highly inaccurate. Depending on the locations of the sensor and the shores, it could provide hours of time for the citizens to evacuate to a safe place. The disadvantages are satellites and sensors are high tech products which are expensive to make and maintained. So it’s not available to some poor or undeveloped …show more content…
Sea floor sensors will send signals to a buoy, which will transmit to a satellite, and the satellite will transmit it back to the warning center.
10) Economical Factor: Tsunami causes the country’s economics to decrease. This is because a Tsunami will destroy anything on its path and the government has to re-build it which costs a lot. The government also has to aid the evacuated citizens and provide them with their basic needs such as food, clothes and shelter. The neighboring countries will usually give donations and offer help to the victim country which certainly is very useful. But it is a fact that the country suffers great loss from a tsunami.
Social Factor: People that evacuated suffer the most mentally. They had just experience one of the most deadly disaster. People lose everything in that disaster. Their homes, business and probably some of their families and friends. They have to start all over again in a new place which is hard to accept by some people and can lead to mental problems like craziness. The aftershock of those victims may last years. They may get trauma and can’t move on with their
` 1) Oceanic waves mean the forward movements of the ocean’s water caused by oscillation of water particles by frictional drag of wind over the Earth’s surface. It can be caused by the movement of Earth’s crust aka an earthquake. Like every wave, oceanic waves have highest and lowest points. The peak of thewave is called crest while the lowest point is called trough. The wavelength is the horizontal distance between two troughs or crests.
2)The Largest and most dangerous of oceanic waves is called tsunami or tidal waves. It’s wave could reach up to thousands of feet tall. 3)Tsunami is word originated from japan, and it’s equivalent in English is called “seismic sea waves.” There are many factors causing Tsunami. Most tsunamis that has …show more content…
"BBC - Humber - Features - Your Quake Stories." BBC - Homepage. Web. 04 May 2011. . 6. "Savage Earth: Predicting Tsunamis." PBS: Public Broadcasting Service. Web. 04 May 2011. .
7) Satellite usage to predict Tsunamis are also becoming more popular these last few decades. Satellites are the more complex method used currently. The satellite will capture the movement of an ongoing tsunami and send it back to the government. Some countries like Japan and States has started to use sensors that stays on the seafloor and detect the slight touch of a tsunami passing overhead. These bottom-pressure sensors are connected by a cable stretching out from its coastlines. When the sensors sensed a tsunami going on, the buoy anchored nearest will relay a warning message to the shore via the satellite.
b)
8) Using satellite to predict tsunamis is very accurate since it detects an ongoing tsunami and not predicts which sometimes is highly inaccurate. Depending on the locations of the sensor and the shores, it could provide hours of time for the citizens to evacuate to a safe place. The disadvantages are satellites and sensors are high tech products which are expensive to make and maintained. So it’s not available to some poor or undeveloped …show more content…
Sea floor sensors will send signals to a buoy, which will transmit to a satellite, and the satellite will transmit it back to the warning center.
10) Economical Factor: Tsunami causes the country’s economics to decrease. This is because a Tsunami will destroy anything on its path and the government has to re-build it which costs a lot. The government also has to aid the evacuated citizens and provide them with their basic needs such as food, clothes and shelter. The neighboring countries will usually give donations and offer help to the victim country which certainly is very useful. But it is a fact that the country suffers great loss from a tsunami.
Social Factor: People that evacuated suffer the most mentally. They had just experience one of the most deadly disaster. People lose everything in that disaster. Their homes, business and probably some of their families and friends. They have to start all over again in a new place which is hard to accept by some people and can lead to mental problems like craziness. The aftershock of those victims may last years. They may get trauma and can’t move on with their