DRRR_Hydrometeorology Quiz

• Hydrometeorology


  Branch of meteorology and hydrology studying transfer of water and energy
• 2. Flood 

  • High-water stage where water overflows its banks onto dry land
  • Inland Flooding technical name for ordinary flooding occurring in inland areas
  • Flash floods caused by heavy rain or sudden release of water over a short period of time; less than 6 hours
  • River flooding water levels in rivers overflow onto surrounding banks and neighbouring land
  • Coastal flooding inundation of land areas along the cost by seawater
  • Urban flooding lack of drainage
• 3. Storm surge

  • Daluyong ng bagyo
  • Irregular sea-level rise during typhoon
  • Powerful winds force ocean water over coastal areas
  • Strength of tropical cyclone
  • Height of surge
  • Community located in low-lying areas
• 4. Thunderstorm

  • Powerful, short-lived weather disturbance associated with lightning, thunder, dense clouds, heavy rain, roaring winds
  • Layers of dry, moist air rise up to cooler regions in a rapid updraft
• 1. Cumulus stage

  • Sun heats the Earth during the day and warms the air

  1. Mature Stage

  • Cumulus cloud become large, water becomes large and heavy, raindrops begin to fall when rising air can no longer hold up

  1. Dissipating stage

  • Downdrafts in the cloud begins to dominate over the updraft
  • Warm moist air can no longer rise and cloud droplets can not form
• 5. El Niño 

  • The Little Boy or Christ Child
  • Appearance of usually warm water in the Pacific Ocean; around December
  • large -scale ocean-atmosphere climate interaction linked to warming in sea surface

  6. La Niña

  • The Little Girl or El Viejo; cold event
  • Below-average sea surface temperature across east-central Equatorial Pacific
  • Cooling of ocean surface
• Typhoon - northwest pacific
• cyclone - southwest pacific; indian ocean
• hurricane - eastern pacific; atlantic ocean
• tropical cyclone - scientific term for typhoon, hurricane, and cyclone
• clockwise - southern hemisphere
• counter clockwise - northern hemisphere
• Philippine Area of Responsibility (PAR) - area being monitored by PAGASA
• cumulonimbus cloud - produce rainfall and lightning
• red - take action; catastrophic
• yellow - alert; possible
• green - no alert; no action required
• Coriolis Effects 

  • Cause water and air to curve as they travel across the Earth’s surface
  • South to east
  • North to west
• 1. Eye

  • Roughly circular; centre of typhoon ranging from below 10 km to 200 km
  • 30 to 60 km in diameter 
  • Above 74 mph; Calmest part of the storm

  1. Eye wall

  • Circular ring of thick clouds
  • Area of highest surface winds and heavy rain
  • Ring of tall thunderstorms producing heavy rains and winds

  1. Spiral rain bands

  • Curved bonds of clouds and thunderstorms trailing away from the eye wall spirally
  • Produce heavy bursts of rain, wind, and tornadoes