DRRM review

• Hydrometeorological hazard are dangers associated with the natural processes or phenomena involved in the transfer of water and energy between the land surface and the lower atmosphere
• Typhoons or Bagyo are intense circulating winds with heavy rains over tropical waters and land.
• Typhoons are actually tropical cyclones whose winds have reached 118 km per hour, which is why it is described as intense.
• Tropical depression : up to 61 kph
• Tropical storm: 62 to 88 kpg
• Severe Tropical Storm : 89 to 117 kph
• Typhoon: 118-220 kph
• Super Typhoon: more than 220 kph
• A thunderstorm also known as electrical storm, is a storm characterized by heavy rain with the presence of thunder and lightning.
• Thunderstorm happens because of the uneven distribution of heat in the air and on land.
• If the rising warm air becomes rapid with the presence of moisture, thunderstorms take place. Thus, heat and moisture are key factors in the formation of thunderstorm
• Thunderstorm usually happen in summer because of the atmosphere's high humidity and high temperature.
• Lightning comes from the separation of charged particles in the cloud
• Flood is the presence of excessive water on a supposedly dry land.
• Flood can be caused by continuous rainfall or poor drainage,
• Flash flood is a rapid flow of water on saturated soil or dry soil or any foundation that has poor absorption capabilities.
• Flash Flood are usually caused by extensive rainfall but can also be induced by man-made structures such as water overflows from a dam
• Tornado and Whirlwind is a rapidly rotating column of air that is in contact with the air and land
• El Nino is usually associated with the warming of the central and tropical waters of Pacific Ocean
• La Nina would have the exact opposite, which is the cooling of the same areas in a different seasons
• El Nino refers to the phenomenon to the large-scale warming of the ocean and atmosphere across the central and east central Equatorial Pacific
• In like warmer, warming takes place in the philippines in December.
• La Nina begins in the eastern part of the Pacific Ocean
• La Nina, The sea surface temperatures during this periods become lower by 3-5 celsius
• La Nina in effect, the Philippines is affected by excessive rainfall and cold temperatures
• Doppler Radar is used to measure important weather parameters
• Automatic Rain Gauge is usually installed in telecommunication cell sites to observe and locate areas with excessive amount of rainfall.
• The Philippine Atmospheric Geophysical Astronomical Services Administration (PAGASA)
• Fire is the process of rapid oxidation of any material resulting in burning.
• Fire Triangle refers to a model that shows the three essential components that when present together can start a fire and sustain it,
• Fire needs a fuel source or combustible material in order to burn such as paper, wood, gasoline, kerosene, propane and etc.
• Heat is needed to start and continue the combustion process.
• Oxygen constitutes about 21% of the air arounds us. It reacts with flammable vapors given off by fuels, and the reaction releases heat.