Recent Changes

Tuesday, July 27

  1. page Alessa.m edited ... Spread: This is characterized by the movement of lateral displacement of large volumes of dist…
    ...
    Spread: This is characterized by the movement of lateral displacement of large volumes of distributed material over very gentle or flat land. This type of landslide is caused by liquefaction (when saturated loose sediment such as sand, are transformed into a liquid state). This process is triggered by rapid ground motion most commonly during earthquakes.
    {http://images.anaheim-landslide.com/landslide/images/ls-fig07.gif}
    ...
    landslides​ have occurredmostlyoccurred mostly around the
    {http://www.ga.gov.au/image_cache/GA9882.jpg}
    The green dots are were the landslides have happened.
    ...
    http://en.wikipedia.org/wiki/1997_Thredbo_landslide
    http://www.ema.gov.au/www/ema/schools.nsf/Page/Get_The_FactsLandslides
    http://www.smh.com.au/news/National/Thredbo-disaster-at-last-the-facts/2004/12/02/1101923273802.html
    http://www.epicski.com/forum/thread/57470/in-memoriam-thredbo-landslide-30-july-1997
    http://en.wikipedia.org/wiki/1997_Thredbo_landslide
    (view changes)
    2:31 pm

Monday, July 26

  1. page bec.williams edited ... What are the four stages of a tropical cyclone? Formative- as they form over the oceans Imma…
    ...
    What are the four stages of a tropical cyclone?
    Formative- as they form over the oceans
    Immature- the clouds collect and move with the winds that start rotating clockwise around a low pressure area.
    Mature-
    Dacaying-
    There are 4 stages of a tropical cyclone:
    Formative – as they form over the oceans
    Immature-
    the clouds
    ...
    then get stronger.
    Mature: The
    stronger
    Mature- the
    cyclone reaches
    ...
    destructive power
    Decaying: The
    {http://c1.wikicdn.com/i/c.gif} Underline
    Dacaying- the
    power of
    ...
    decrease because it sits either moved
    ...
    travelling over land. Theyland, The pattern or
    ...
    goes and the winds are less strong.
    Map

    Map
    of Australia
    ...
    the years 2002000 to 2006.
    {http://www.bom.gov.au/tmp/aus200020060.gif}
    KEY:
    ...
    It cost the community roughly $500 000 to fix any damages.
    Environmental effects:
    {http://www.vk6ksj.net/photography/tcGlenda260306/wynRadar/WY-256kRadar_1530_260306-anim.gif}
    {http://www.vk6ksj.net/photography/tcGlenda260306/BoM/irAnim0800_270306.gif}
    Management stratergies:
    Before a cyclone hits you will usually recieve an early warning, letting you know when a cyclone is roughly going to hit. This will give the town enough time to evacuate the area which will help minimise the death toll. If the area you live in is prone to cycclones, before the cyclone season you can prepare an emergency kit. It should contain: a portable radio,
    a torch,
    spare batteries,
    first aid kit,
    non-perishable food,
    sturdy gloves,
    waterproof bags,
    candles,
    matches,
    essential medications
    copies of important documents (eg insurance details, birth certificates, prescription refills) in sealable plastic bags.
    Also, you can develop a evacuation plan and an emergency phone number list.
    To prepare your house for a cyclone you can:
    contact the council to see if your house has been built to cyclone standards
    make sure your house insurance will cover any damage
    check the condition of your roof
    windows must be fitted with shutters or metal screens
    Trim any overhanging branches above or around your house
    clear the gutters of leaves. ect
    {http://www.emergency.qld.gov.au/emq/css/images/image05.jpg}
    {http://www.vk6ksj.net/photography/tcGlenda260306/wynRadar/WY-256kRadar_1530_260306-anim.gif} {http://www.vk6ksj.net/photography/tcGlenda260306/BoM/irAnim0800_270306.gif}

    (view changes)
    2:33 pm
  2. page Paige edited ... Other landslide prone areas commonly include slopes made up of low strength, sensitive, collap…
    ...
    Other landslide prone areas commonly include slopes made up of low strength, sensitive, collapsible, weathered or loose material.
    A few landslide prone areas in Australia include:
    ...
    Dividing Range (NSW)
    Strezelecki and Otway Ranges (Southern VIC)
    Mt Lofty Ranges (near Adeleide)
    ...
    Since 1842 there have been approximately 84 known landslide events, collectively responsible for the deaths of at least 107 people and injury to at least 141 people.
    {111.png} {http://tfmc.blogs.com/the_flying_monkey_circus/One_20Red_20PaperClip.jpg} Management stategies:
    ...
    {http://www.geologyeducation.com/blackboard/lan/landsld.gif} Landslide Progressionresponsibility for disaster preparedness and response and are fully responsible for managing any natural disasters within their area of jurisdiction.
    The
    ProgressionresponsibilitycThe arrangements within
    Your role:
    • Request information and assistance from your Local Government Authority prior to land purchase or construction. This information could include past landslide activity and any known landslide risk assessments.
    ...
    • Do not undercut steep banks, develop near the top or base of steepslopes, or place pressure or load on steep slopes.
    • Do not stand or seek cover below or near coastal cliffs or overhangsand be aware of potential dangers they represent. Take notice of signs giving warning of loose rocks and debris.
    ...
    area and becom efamiliarbecome familiar with tell-tale
    • Contact local Emergency Services, police or local council.
    • Inform affected neighbours.
    (view changes)
    5:11 am
  3. page Paige edited ... What causes landslid {http://www.ga.gov.au/image_cache/GA9885.jpg} landslide prone ledgees? I…
    ...
    What causes landslid {http://www.ga.gov.au/image_cache/GA9885.jpg} landslide prone ledgees?
    In general, the factors which influence whether a landslide will occur typically include slope angle, climate, weathering, water content, vegetation, overloading, geology and slope stability.
    {http://tfmc.blogs.com/the_flying_monkey_circus/One_20Red_20PaperClip.jpg} The
    The
    basic types
    Fall
    The rapid rate of movement with the descent of material. Falls are commonly triggered by earthquakes or erosion processes.
    (view changes)
    3:57 am
  4. page Paige edited ... What causes landslid {http://www.ga.gov.au/image_cache/GA9885.jpg} landslide prone ledgees? I…
    ...
    What causes landslid {http://www.ga.gov.au/image_cache/GA9885.jpg} landslide prone ledgees?
    In general, the factors which influence whether a landslide will occur typically include slope angle, climate, weathering, water content, vegetation, overloading, geology and slope stability.
    How these factors interrelate is important in understanding what causes landslides along with an understanding of the impact humans have on these factors by altering natural processes.
    {http://tfmc.blogs.com/the_flying_monkey_circus/One_20Red_20PaperClip.jpg} The basic types of landslide movement are:
    Fall
    (view changes)
    3:57 am
  5. page home edited College 9 Geography {Picture11.png} A natural hazard is a threat of a naturally occurring…

    College 9 Geography
    {Picture11.png}
    A natural hazard is a threat of a naturally occurring event that will have a negative effect on people or the environment.
    {http://www.schnews.co.uk/images/568-aussie-large.jpg}
    (view changes)
    2:20 am
  6. page home edited College 9 Geography {Picture11.png} ​ A natural hazard is a threat of a naturally occurr…

    College 9 Geography
    {Picture11.png}

    A natural hazard is a threat of a naturally occurring event that will have a negative effect on people or the environment.
    {http://www.schnews.co.uk/images/568-aussie-large.jpg}
    (view changes)
    2:11 am
  7. page home edited ... College 9 Geography {Picture11.png} ​ A natural hazard is a threat of a naturally occur…
    ...
    College 9 Geography
    {Picture11.png}

    A natural hazard is a threat of a naturally occurring event that will have a negative effect on people or the environment.
    {http://www.schnews.co.uk/images/568-aussie-large.jpg}
    (view changes)
    2:10 am

More