weather hazards

• name the 3 cells in the global atmospheric model


  the Hadley cell, ferrel cell, polar cell
• where is the Hadley cell 


  the equator
• where is the ferrel cell


  30-60 degrees n/s of the equator
• where is the polar cell


  60-90 degrees n/s of the equator
• what happens to air at a high pressure belt


  it sinks
• what happens to air in a low pressure belt 


  it rises
• why is it humid and rainy at the equator

  the pressure is low so the air rises causing clouds= rain. it is hot because the sun shines directly onto the equator.
• why is it dry at the subtropics

  it it at an area of high pressure so air sinks meaning there are no clouds to cause precipitation making it dry and hot.
• why is it cloudy and wet at the sub polar latitudes

  its at a low pressure belt so air rises causing clouds which causes rain.
• what is a tropical storm

  a very large, spinning storm that forms in the tropics
• 3 causes of a tropical storm

  temp of water being 27degrees, air pressure-high and low colliding, wind shear- has to be in a swirling motion.
• 5 steps of the formation of a tropical storm


  1, warm air rises 2, storm clouds form 3, system starts spinning due to the Coriolis effect 4, additions of the warm air causes an increase in energy 5, a storm eye is developed (an area of low pressure causing it to be calm and cloud free) the eyeball is surrounding this which is where the storm is most powerful . 6, when the storm reaches a coast the mixture of low pressure and high winds causes a storm surge - lots of water being pushed onto land but when the storm reaches land it loses energy and eventually collapses.
• what's the weather like at the eye of the storm

  calm and cloudless

  
• has the intensity of tropical storms increased or decreased due to climate change

  increased
• 3 primary effects of tropical storms

  1, crops destroyed 2, strong winds destroying buildings and infrastructure 3, heavy rain causing flooding
• 3 secondary effects of a tropical storm


  food shortages, homelessness, landslides
• 3 immediate responses to a tropical storm


  setting up shelters, aid such as food and water to keep people alive, clearing roads to allow rescue services to enter
• 3 long term responses to a tropical storm


  housing reconstruction, investments into management such as warning systems, using money to build up the economy such as food production
• 4 ways of managing tropical storms

  monitoring, predicting, protecting, planning
• examples of monitoring

  monitoring cloud formations and movements through satellite technology
• how to predict a tropical storm

  using computer modelling to predict when and where a tropical storm will hit
• how to protect from a tropical storm

  sea walls , houses built on stilts, buildings made from concrete
• how to plan for a tropical storm

  escape routes, raising awareness and creating a emergency aid bag
• why is uk weather becoming more extreme

  more energy in the atmosphere which makes it warmer
• types of water hazards the uk experiences

  prolonged rainfall, thunderstorms, extreme cold and heavy snow, strong winds, drought and extreme heat