DRRR_Hydrometeorological Hazards

• Atmospheric hydrological or oceanographic nature

  Hydrometeorological Hazard
• Changes in sea level air pressure patterns in the Southern Pacific Ocean between Tahiti and Darwin, Australia


  Southern Oscillation
• Amount of heat needed to raise its temperature for a certain amount (it is predictable)

  Specific Heat of Water
• Result from changes in air pressure

  Wind
• Winds go to LPA to HPA

  [False] Wind will always go from HPA to LPA
• Factors in developing storm/rain

  1. Wind
  2. Heat (from the Sun)
  3. Water/Moisture
• If air does not push towards west, rain will not occur and will concentrate on the ocean

  El Niño
• Falls under technological Hazard except in the instance of forests

  Fire Hazard
• Components of the Fire Triangle

  1. Oxygen
  2. Heat
  3. Fuel
• Fire converts oxygen into --- due to smothering which removes O2

  Carbon Dioxide
• Wind travels from ---- to ---- due to the planet's rotation

  East to West
• What happens when there is no significant difference in air pressure between two locations?


  No significant wind pushing thus no rains will develop and they will instead concentrate in the ocean [ENSO]
• Where do the rains go during ENSO?


  Pacific Ocean [Specifically Eastern and Central Pacific Oceans]
• Ordinary combustibles


  Class A
• Flammable Liquids/Fluids


  Class B
• Electrical Equipment


  Class C
• Combustible Metals


  Class D
• Cooking Media


  Class K
• Green Triangle


  Class A
• Red Box


  Class B
• Blue Circle


  Class C
• Yellow Star


  Class D
• Black Hexagon


  Class K
• Which among the classifications of fire do we need another type of extinguisher


  Class D [Dry Powder Extinguisher is needed]
• Gasoline, Oil, Paints, Tar, LPG fall under


  Class B [red box]
• Wiring, Fuse boxes, circuit breakers, appliances fall under ?


  Class C [blue circle]
• Wood, Paper, Rubber, Fabrics, plastics fall under ?

  Class A [Red triangle]
• Magnesium, lithium, sodium fall under ?


  Class D [yellow star]
• Vegetable Oils, Animal Oils, Fats, Lipids


  Class K [Black hexagon]
• What type of extinguisher is used for Class K ?

  Wet Chemicals
• What type of extinguisher is used for Class D?


  Dry Powder
• Factors of Natural HM Phenomena

  1.Weather

  2.Climate

  3.Homeostasis

  4. Interaction of the Earth Subsystems
• What makes HM Hazards?

  1. Classification 
  2. Exposure 
  3. Vulnerabilities 
  4. Perspectives
  5. Climate change effects
• What lowers disaster risk related to HM phenomena?


  1. Mitigation
  2. Early warning systems
  3. Systems and Models for disaster scientific study
• What phenomena proves why the Earth is round?

  Uneven heating?
• Warm air ----

  Cold air ----

  Rises

  Sinks
• [T or F] Sun's heat is reflected upward by the Earth's surface?

  True
• [T or F] When an LPA forms, winds form

  True
• What regions are more cold and dry, bringing with it a colder season with less rains

  Polar Regions
• Highest at Sea Level and decreases with Altitude

  Pressure