Cyclones Story Board 1. Identify how the disaster occurs (use technical scientific language) Tropical cyclones start as a low pressure system and they form over warm tropical waters with sea temperatures above 26.5°c. The warm, moist air begins to spiral and becomes a strong, circling, wind storm. In the centre of a cyclone, there is a calm area called the 'eye'. In the eye, the sky is clear and there is only a light wind blowing. To be classed as a cyclone they need to have wind speeds greater than 63km/hour and gusts at the centre/eye in excess of 90km/hour and lasting longer than 6 hours. Cyclones can change direction suddenly, which makes it very difficult for meteorologists to forecast what will happen. Tropical cyclones bring heavy rain, strong winds and cause high waves, storm surges and flash flooding. How cyclones form eye Formation of a cyclone 2. Describe the scales that are use by scientists to measure the disaster. Cyclones are categorised on their intensity of wind it produces. A category 1 cyclone is the weakest with the lowest wind speed and category 5 is the strongest with the strongest wind speed. Categories of cyclones 3. Analyse and explain their effects on living and non living things. Living things Cyclones destroy property therefore people lose their homes or have damage to repair. Cyclones destroys crops which in turn customers pay more for goods or can’t get them at all. Cyclones ruins roads therefore roads can be cut and people sometimes can’t get goods. Cyclones bring down power lines therefore people don’t have refrigeration for their food or power for lights or appliances. Cyclones can cause death and therefore loved ones die. Cyclones can injure humans and animals. Non living things Demolished house Storm Surge Boats everywhere from cyclone Yasi Cyclone destroy houses. Cyclones destroy property. Cyclones ruins roads Cyclones demolishes businesses Cyclones Cause erosion of beaches therefore beaches are closed. Cyclones cause loss of power. Fallen power lines 4. State how scientists make early detections of the disaster and how they communicate to the public. Forecasters and scientists monitor the weather with radar images and computer modelling programs which can detect low pressure systems which may form into cyclones, they inform people by TV, radio, internet and newspapers. Newspaper article for cyclone Tracy Battery operated radio Bibliography http://images.watoday.com.au/2011/01/27/2154019/article-cyclone-420x0.jpg http://i.telegraph.co.uk/multimedia/archive/00799/baked-beans_799777c.jpg http://i.walmartimages.com/i/p/00/02/72/42/73/0002724273359_500X500.jpg http://www.bom.gov.au/ http://www.bom.gov.au/cyclone/images/tc-graph-1969-2012.png http://www.caminodesantiago.me/wp-content/uploads/water-bottle.jpg http://www.gmat.unsw.edu.au/currentstudents/ug/projects/Darmawan/Cyclone_files/cyclone.jpg http://www.totalsecureme.com/wp-content/uploads/2013/10/First-Aid-Box.jpg http://www.worldatlas.com/twitter/darwin/headline.jpg https://encryptedtbn0.gstatic.com/images?q=tbn:ANd9GcR9kOKM1wCqJL_ogCAJ_8PHWOKwe833PAhBTl9rgzRgLxMa_jhNg https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcSKceswlOMJNi22jpTO1JYWkTY3P54aYEhRg3ABpQHM0zh2VkgcDCwRwpy https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcSxS0O5DdvS09dG45yJMIHhZIN4dry8GDUl_JTCm-1-8sQUy5C2kkCRJ9U https://sites.google.com/site/disasterportal/stroms_cyclones/cycloneformation/cy2.jpg?attredirects=0 https://www.dfat.gov.au/aib/images/australia-topographic-map-960.jpg The New Jacaranda Atlas by The Jacaranda Press 5. Based on your research make predictions of where and when are natural disaster may likely occur. Darwin Weipa Derby Bundaberg I predict that in our next cyclone season which run from 1st November 2014 to 30th April 2015 that there will be 5 cyclones based in the categories 1-2. I think that the cyclones will hit Darwin in the Northern Territory and the top half of WA around Derby and another around Port Hedland and in Queensland around Weipa and Bundaberg. Port Hedland My predicted areas for cyclones in Australia 6. Provide scientific evidence for your predictions. There is scientific evidence that cyclones occurs in warm tropical waters and my towns/cities are all in the Northern parts of Australia that have warm tropical water temperatures. Cyclones occur on the coast and all my towns/cities are on the coast. I also have predicted that that these cyclone will occur in November to April next year which is scientifically proven to be cyclone season because the water temperatures are much warmer at that time of year because of it being Summer and Autumn. I have predicted that my 5 cyclones for next year will only be categories 1-2 because I believe that there is a cyclone pattern and a serious cyclone hasn’t happened for a few years and won’t happen next season either. 1 have predicted 2 cyclones for WA because from Cyclones that have crossed the coast from 1970-2002 severe non severe Cyclone Trends 1970-2004 72/146 cyclones that crossed that coast in Australia occurred between Broome and Exmouth making this area of coast line more prone to cyclones 7. Explain and illustrate the safety procedures that need to be followed in the event one encounters a disaster. Cut /trim down all trees near house Clear gutters Secure loose items Check on neighbours Collect water in case of loss of water or contamination Spare food/tin food First aid kit in case of injury Charge mobile phone Portable radio and spare batteries Have a torch and spare batteries in case of black out Open doors and windows on opposite side of the house from which cyclone is coming Don’t go outside Get into smallest room/get inside and stay inside Stay away from all glass windows and doors Stay away from fallen power lines First aid kit Spare water Tin food/spare food Brock Roselt Year 6 Natural Disasters 19th March 2014