hydrometeorological hazards

    Cards (11)

    • Hydrometeorological Hazards
      • is a process or phenomenon of atmospheric, hydrological or bring catastrophic effect to oceanographic nature that may the physical assets and economic aspect.
    • Typhoon
      • also called a low-pressure area
      • some also call it a storm or wily- wily or hurricane
      • a wide and violent tropical cyclone
      • it rotates in the counterclockwise direction, with warm air rising above Western Pacific Ocean warm water.
    • PAG-ASA
      • Philippine Atmospheric Geophysical and Astronomical Services Administration (PAGASA)
    • Flood
      • is characterized as superflouos water that swaps normally dry land and properties
    • Flashflood
      • is often caused by heavy rainfall in a short time span, typically less than 6 hours.
    • La Niña
      • represents periods of under-average sea surface temperatures across the Equatorial Pacific in the east-central.
      • The Little Girl in Spanish. La Niña, El Viejo, anti-El Niño, or simply "a cold event"
    • Storm Surge
      • is an abnormal rise in sea level during tropical cyclones or “daluyong bagyo".
      • powerful winds force the ocean water over the coastal low-lying areas, which can lead to flooding.
    • Thunderstorm
      • is local storm created by cumulonimbus clouds
      • a powerful, short-lived weather disturbance
      • associated with lightning, thunder, dense clouds, heavy rain or hail, and fast, roaring winds.
    • 3 stages of Thunderstorm Formation:
      CUMULUS STAGE
      • where heats the sun the Earth's surface during the day and warms the air around it.
      •MATURE STAGE
      • A cumulus cloud becomes very large, where the water therein becomes large and heavy,
      • raindrops begin to fall through the cloud when the rising air can no longer hold them up.
      DISSIPATING STAGE
      • After 30 minutes downdrafts in the cloud begins to dominate over the updraft.
      • warm moist air can no longer rise, cloud droplets can no longer form.
    • El Niño
      • refers to the large-scale ocean-atmosphere climate interaction linked to a regular warming of sea surface temperatures around the Equatorial Pacific region and east-center.
      • The Little Boy, or Christ Child in Spanish.
    • Basic Weather Tools
      1. Pilot Ballon/ Thedolite - Used to determine wind speed and direction at different atmospheric levels.
      2. Radiosonde - used In measuring sound, temperature, and relative humidity.
      3. Rawindsonde - an electronic tool used aloft to determine wind speed, strain, temperature, and humidity.
      4. Wind Finding Radar - it determines the speed and direction of winds aloft.
      5. Wind Surveillance Radar - detects an tracks typhoons and cloud masses 400 kilometers or less away.
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