This document discusses different types of wind erosion and dune formation. It defines several terms related to wind erosion processes like suspension, saltation, deflation and abrasion. It also identifies three key conditions for wind erosion: dry conditions, little vegetation, and shorelines. The document describes different dune types including barchan, parabolic, transverse, and longitudinal dunes. It provides details on their crescent shapes, migration directions, locations of formation, and influencing wind patterns.

1. 8.2 Wind Pages 191-197

2. Goal 1 Learn wind erosion terms

3. Goal 1: Be familiar with wind erosion terms Suspension Saltation

6. Goal 1: Be familiar with wind erosion terms Deflation Abrasion

8. Goal 1: Be familiar with wind erosion terms Ventifact

10. Goal 2 Identify 3 conditions that contribute to wind erosion

11. Dry conditions

12. Little vegetation

13. Sea shores and Lake shores

14. Goal 3 Recognize types of dunes; areas where they form and their migration direction

15. Barchan Crescent shape Arms point Wind direction Flat area Little vegetation

17. Parabolic Dunes Crescent shape Arms anchored Nose points direction Some vegetation Coasts

18. Transverse Dunes Lined up Perpendicular wind High winds Lots-o-sand Barchans joined together

19. Longitudinal Dunes Lined-up Wind direction parallel High, variable wind Limited sand

20. Star dunes Collection of Barchans

21. Picture Credits http://www.co.mendocino.ca.us/aqmd/images/Saltation.jpg http://www.uwsp.edu/geo/projects/geoweb/participants/dutch/202SLIDE/WINDSLID.HTM http://gpc.edu/~pgore/Earth&Space/GPS/erosion.html http://www.earthscienceworld.org/images/search/results.html?Keyword=Ventifact http://www.indiana.edu/~g103/G103/Week8/sphinx.jpg http://www.exploratorium.edu/origins/antarctica/fieldnotes/images/fventifact400.jpeg http://icemanphil.blogspot.com/2005/01/my-holiday-outing.html http://math.ucr.edu/home/baez/barchan.jpg http://www.personal.rdg.ac.uk/~sgswitke/linears.jpg