Hi, I was just wondering how an eroding dune and a non-eroding dune would differ, in terms of diagrams. For example, is there any site that would compare two cross-sectional shapes of the dunes? I couldn't find any on google.
go to different websites to check them
Since this is not my area of expertise, I searched Google under the key words "dunes eroding diagram" to get these possible sources:
http://www.seafriends.org.nz/oceano/beach.htm
http://en.wikipedia.org/wiki/Sand_dune
http://books.nap.edu/openbook.php?record_id=11764&page=78
(Broken Link Removed)
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.
I hope this helps. Thanks for asking.
To compare the cross-sectional shapes of an eroding dune and a non-eroding (stable) dune, you can follow these steps:
1. Start by searching for images or diagrams of both eroding and non-eroding dunes separately. Use keywords like "eroding dune diagram" and "non-eroding dune diagram."
2. Look for reputable sources such as scientific articles, academic textbooks, or educational websites. These sources are more likely to provide accurate and detailed information, including diagrams.
3. If you are unable to find a direct side-by-side comparison of both dune types, you can try to use your existing knowledge of dunes to analyze and compare the diagrams individually.
Here's a brief explanation of the differences between an eroding dune and a non-eroding dune:
Eroding Dune: An eroding dune, also known as a "blowout dune," typically occurs when the natural processes that stabilize a dune system are disrupted. These disruptions can be caused by factors such as strong winds, changes in vegetation cover, or human activities. As a result, eroding dunes often have a distinct U or V-shaped cross-section. The steep leeward slope (slip face) of the eroding dune is constantly shifting and caving due to wind erosion, leading to a more distinct concave shape compared to stable dunes.
Non-Eroding Dune: A non-eroding or stable dune maintains its shape and position over a longer period due to the presence of vegetation and appropriate wind conditions. Stable dunes typically have a more gentle leeward slope with a convex shape. The vegetation cover helps to bind the sand together, preventing excessive erosion and maintaining stability.
Remember, diagrams and illustrations can be helpful visual aids to understanding these concepts, so strive to find reputable sources or consider consulting textbooks on geomorphology or related subjects which may have the diagrams you are seeking.