PPT-Weathering The Storm: Bringing Clarity To The Unknowns Of Severe Thunderstorm Modeling

Prepared by Impact Forecasting March 2015 Aon Benfield The worlds leading reinsurance intermediary Experts in utilizing catastrophe models annually analyzing 70 of the Homeowners market. May 2010. 2. ARSC Clarity Project. Background. ASB approved its clarity project in August 2007. Goals:. Address concerns over length and complexity of standards. Make standards easier to read, understand and implement. Chapter 3: Introduction. 8 main terms to learn. Weathering. Erosion. Denudation. Mechanical weathering. Chemical weathering. Transport. Deposition. Agents of weathering. Weathering. The breaking down of rocks that lie exposed to the weather.. Weathering. The breakdown do the materials of Earth’s crust into smaller pieces.. Physical Weathering. Process by which rocks are broken down into smaller pieces by external conditions.. Types of Physical weathering. A Scientastic presentation. Storm Chaser’s Cli. p. http://. www.discovery.com/tv-shows/storm-chasers/videos/what-is-the-dominator.htm. . Discussion Question – . Severe Thunderstorms. C. apable . Physical Weathering. Weathering. is the breakdown of rock or soil. . Physical . weathering occurs when natural forces, such as wind, running water, and moving ice, physically break up rock and soil into smaller particles. . The . surface. features of the Earth change as a result of observable physical and chemical processes . Weathering and Erosion. This is a monument . called Cleopatra’s . Needle. It was carved in Egypt around 1450B.C. The sides are carved with hieroglyphs, the writing of ancient Egypt. It stood in the dry, hot Egyptian desert for over 3000 years. During that time, the hieroglyphs remained distinct.. 10.4. Erosion. Water, in either gas, liquid, or solid form can change the surface of the earth, it can even carve . rock. !. Erosion is the . transportation. of broken down rock fragments (sediment) by water, glaciers, gravity, and wind. It can happen slowly or . formation of landforms. weathering and erosion. The process of weathering and erosion are the main forces behind landscape types. . However, they are not the only reason for a plain, plateau, or a mountain region to form. . THUNDERSTORMS. (Chapter 14). ORDINARY (“AIR MASS”) THUNDERSTORM LIFE CYCLE. SEVERE THUNDERSTORM. 1 inch diameter hail, or. 50 knot surface winds, or. tornadoes. SEVERE THUNDERSTORM. SEVERE THUNDERSTORM. Erosion. The carrying weathered rock from one location to another . Mechanical Weathering. Rock is physically broken down. Smaller pieces have same composition. Chemical Weathering. Rock is chemically broken down. A violent disturbance in the atmosphere.. What is a storm? . . Involves sudden changes in air pressure. Cause rapid air movement. Conditions that bring one . kind of storm in one . area often cause other kinds of storms in the same area. Weathering. is the break-up of rock due to exposure to the atmosphere.. Weathering. involves two processes that often work together to decompose or break down rocks.. Chemical and Mechanical. Weathering!. THUNDERSTORM ASTHMA: THINGS TO KNOW. Thunderstorm asthma can happen in the springtime between September and January.. During some thunderstorms in south eastern Australia, grass pollen is swept into the storm and explode into tiny pieces and gets deep into the lungs, causing asthma. F or some of our canine friends, a thunderstorm can be a highly traumatic event. Dogs with thunderstorm phobia can engage in a variety of behaviors including:  Hiding under beds or furniture, or in