Hydrometeorological-Hazarsmnjkhjfds.pptx

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1. Hydrometeorological Hazards

2. Hydrometeorological hazards They are brought by extreme meteorological and climate phenomena that include tropical cyclones, thunderstorms, tornado ( ipo-ipo ) drought, and floods.

3. Tropical cyclones Western North Pacific around the Philippines, Japan, and China the storms are known as typhoons . North Atlantic Ocean and the Eastern North Pacific they are referred to as hurricane.

4. Here are the top five destructive typhoons to ever hit the country: Typhoon Haiphong ( 1881) Typhoon Haiyan (Yolanda) ( 2013) Tropical storm Thelma ( Uring ) (1991 ) Typhoon Bopha (Pablo) ( 2012) Typhoon Angela (1867).

5. Monsoons seasonal wind and rains pattern, and the word “monsoon” believed to be originated from the Arabic word mawsim (season), via Portuguese and the Dutch monsun .

6. Two known monsoons in the Philippines that occur every year: Summer Southwest ( Habagat ) and Winter Northeast Monsoon ( Amihan ).

7. 1. Amihan : brings cloudless skies and nippy mornings during the dry season (October to late March) 2. Habagat : brings heavy rains and some deadly typhoons (June to September)

8. Floods Flood is as an abnormal progressive rise in the water level of a stream that may result in the overflowing by the water of the normal confines of the stream . A flood can vary in size, speed of water, and duration.

9. Tornado ( Ipo-ipo ) A tornado is a narrow, violently rotating column of air that extends from a thunderstorm to the ground. The main cause of tornadoes are thunderstorms though tornadoes are not common in the Philippines, still it can occur at any time of the year.

10. Northern Luzon, Southeastern Luzon and Eastern Visayas are the areas highly at risk to the occurrence of tropical depressions, tropical storms, typhoons and super typhoons. Did you know? Typhoon Haiphong in 1881 , ranks as number one deadliest typhoon that crossed the Philippines. Haiyan (Yolanda) in 2013 is known as deadliest typhoon in modern year.

11. Pampanga, Nueva Ecija , Tarlac , and Bulacan provinces make Region III as the most exposed region in the country to tropical cyclones.

12. COMPLETE ME Directions. Read the following statements. Complete them by filling in the blanks with the correct term or phrases.

13. 1. Seasonal wind and rain pattern phenomena are referred as ___________. 2. In average, ____ typhoons visited Philippines every year. 3. In the Philippines, tropical cyclones are popularly known as ____________. 4. In 1881 the deadliest typhoon ever hit in the Philippines is __________. 5. The most flood-prone province in the Philippines is ______________.

14. Effects of Marine and Coastal Processes

15. Coastal processes are activities or events happening in the marine environment . include waves, tides, sea level change, crustal movement and storm surge .

16. Waves are caused by the movement of the air masses in the coastal environment. Tides refer to the gravitational pull between the Earth and the moon. Sea level change is a result of the rise of ocean water which can be attributed to the melting of glaciers or iceberg in the polar regions.

17. Storm surge refers to the rising of seawater due to changes in pressure and wind associated with a storm . Crustal movement is caused by the motion of the oceanic and continental crust of the Earth.

18. Effects of Marine and Coastal Processes Coastal hazards are physical phenomena that expose the marine environment to risk of property damage, loss of life and ecological degradation.

19. Coastal Erosion It is the loss or displacement of land along the coastline due to the action of waves, currents, tides, wind-driven water or other impacts of storms.

20. Saltwater Intrusion It is a major concern commonly found in coastal aquifers around the world. An aquifer is an underground layer of permeable rock, gravel, sand or silt. Groundwater from an aquifer is usually extracted by a water well. Once an aquifer becomes contaminated it becomes unusable anywhere from 2 weeks to 10,000 years.

21. Submersion It refers to the movement of coastal sediments from the visible portion of a beach to the submerged nearshore region of the coast.

22. Directions: As a Senior High School student, how can you help the local government to mitigate the harmful effects of coastal and marine processes such as coastal erosion, submersion and saltwater intrusion assuming that your community is prone to these coastal hazards. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________