8.2 Wind

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  • 8.2 Wind

    1. 1. 8.2 Wind Pages 191-197
    2. 2. Goal 1 Learn wind erosion terms
    3. 3. Goal 1: Be familiar with wind erosion terms <ul><li>Suspension </li></ul><ul><li>Saltation </li></ul>
    4. 6. Goal 1: Be familiar with wind erosion terms <ul><li>Deflation </li></ul><ul><li>Abrasion </li></ul>
    5. 8. Goal 1: Be familiar with wind erosion terms <ul><li>Ventifact </li></ul>
    6. 10. Goal 2 Identify 3 conditions that contribute to wind erosion
    7. 11. <ul><li>Dry conditions </li></ul>
    8. 12. <ul><li>Little vegetation </li></ul>
    9. 13. <ul><li>Sea shores and Lake shores </li></ul>
    10. 14. Goal 3 Recognize types of dunes; areas where they form and their migration direction
    11. 15. <ul><li>Barchan </li></ul><ul><ul><li>Crescent shape </li></ul></ul><ul><ul><li>Arms point Wind direction </li></ul></ul><ul><ul><li>Flat area </li></ul></ul><ul><ul><li>Little vegetation </li></ul></ul>
    12. 17. <ul><li>Parabolic Dunes </li></ul><ul><ul><li>Crescent shape </li></ul></ul><ul><ul><li>Arms anchored </li></ul></ul><ul><ul><li>Nose points direction </li></ul></ul><ul><ul><li>Some vegetation </li></ul></ul><ul><ul><li>Coasts </li></ul></ul>
    13. 18. <ul><li>Transverse Dunes </li></ul><ul><ul><li>Lined up </li></ul></ul><ul><ul><li>Perpendicular wind </li></ul></ul><ul><ul><li>High winds </li></ul></ul><ul><ul><li>Lots-o-sand </li></ul></ul><ul><ul><li>Barchans joined together </li></ul></ul>
    14. 19. <ul><li>Longitudinal Dunes </li></ul><ul><ul><li>Lined-up </li></ul></ul><ul><ul><li>Wind direction parallel </li></ul></ul><ul><ul><li>High, variable wind </li></ul></ul><ul><ul><li>Limited sand </li></ul></ul>
    15. 20. <ul><li>Star dunes </li></ul><ul><ul><li>Collection of Barchans </li></ul></ul>
    16. 21. Picture Credits <ul><li>http://www.co.mendocino.ca.us/aqmd/images/Saltation.jpg </li></ul><ul><li>http://www.uwsp.edu/geo/projects/geoweb/participants/dutch/202SLIDE/WINDSLID.HTM </li></ul><ul><li>http://gpc.edu/~pgore/Earth&Space/GPS/erosion.html </li></ul><ul><li>http://www.earthscienceworld.org/images/search/results.html?Keyword=Ventifact </li></ul><ul><li>http://www.indiana.edu/~g103/G103/Week8/sphinx.jpg </li></ul><ul><li>http://www.exploratorium.edu/origins/antarctica/fieldnotes/images/fventifact400.jpeg </li></ul><ul><li>http://icemanphil.blogspot.com/2005/01/my-holiday-outing.html </li></ul><ul><li>http://math.ucr.edu/home/baez/barchan.jpg </li></ul><ul><li>http://www.personal.rdg.ac.uk/~sgswitke/linears.jpg </li></ul>

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