PPT-Dynamics of sand dunes

stabilization Or What can nonlinear dynamics tell us about ecology Shai Kinast The Negev Physics Fete March 15 2013 Sand dunes A patternforming system Morocco Namibia Kasuy wadi. Wind erosion & Deposition. What is wind?. Wind the horizontal flow of air.. It . is caused by. . horizontal differences in pressure which result from the unequal heating of Earth’s surface. http://www.classzone.com/books/earth_science/terc/content/visualizations/es1903/es1903page01.cfm?chapter_no=visualization. Dune Formation. How are they formed?. Working in small groups, try to work out how the sand dunes shown in the picture developed?. TV Clip: BBC Learning Zone. Sand dune formation and movement - the Dune of . Managing for multiple values. Produce timber and other forest products. Provide outdoor recreation. Protect watersheds. q . Perpetuate rare and distinctive species of native flora and fauna. . Minnesota State Forest Management Principles:. Cristina González-Maddux. Institute for Tribal Environmental Professionals. Regional dust storms. Dust storms in Northern AZ. (NASA Earth Observatory, April 11, 2009). Consequences for human health and landscapes . Achievement . Standard . 91426 . A. Phipps: px@macleans.school.nz. How to study for Natural.... Read through your mini . Muriwai. book – it has . soo. much info on . Muriwai. !!. Study as per the revision guide which outlines the assessment areas. Ideas for how to go over the content:. . Tree (Timber) Management in the . . Sand Dunes State Forest . What we’ll cover:. . Why cut trees?. Forest (Timber) Management . . in the Sand Dunes. . Recent and upcoming forest management. Nation Witnesses Changing . Landscape --Growing . Sand Dunes. A U.S. Geological Survey researcher says she's worried about the Navajo because drought, combined with increasing temperatures, are making it harder for them to live in the harsh conditions. of. Egyptian Sand Dunes . Nabil S . Embabi. Professor of Desert Geomorphology. Department of Geography. Faculty of Arts, . Ain. Shams University. Cairo, Egypt. E-mail: nabilsayedembabi@gmail.com . Four regions…. Where are the dunes?. Region One – 73 miles. 55 miles north of Columbia River (WA) to Tillamook Head.. Region Two – 125 miles. Tillamook Head to Heceta Head.. Region Three – 54 miles. Heceta Head to Coos Bay. (ODNRA – focus of this talk). www.des.nh.gov/coastal . Building Back theSand DunesSanddunesarenaturallyoccurringdynamiccoastalfeatures which are formed by the accumulation ofwind blown sand. When sand dunes are damaged fromstormsorhumanactivitytheyrepaire exas General Land OfficeGgorgg P. Buuh, Commissioner VERNON Science: . Sand Dune Profile . Module. Sand Dune Profile Survey. . This involves mapping the height profile of sand dune features.. The aim of this activity is to create a height profile of key areas of interest in the sand dune system. . Downhill creep is diffusive:. Resitance. to sliding depends on pore pressure:. Angle of repose is . independent. of gravity. Effective friction coefficient of long-. runout. landslides . is very low .