Parabolic Dunes - Alkimos
The Quindalup dune system of the northern beaches was formed by ancient sand deposits 40,000 years ago. Most dunes in the area align parallel to the coastline, but the Alkimos Beach dunes have been pushed inland by the wind. This has created a parabolic dune system. The 'arms' and 'crest' of a typical parabolic dune are made stable by vegetation, while the sand in the centre is blown backwards. Parabolic dunes increase in size over time; at Alkimos, the dune is two kilometres wide and extends over three kilometres inland, making it the area's dominant landform. It can be seen extending to the ridge at Providence Park.
Please email me the answers to the following questions:-
1. What is the name of the Dune system type in the area?
2. Approximately how high is the dune you are currently standing on (Height from the road to summit)?
3. The winds here that created the dunes are quite strong and persistent. While at the location take note of the direction the winds are from and how strong and let me know what your answers?
4. Based on the results of the Q3, what bearing do you think the dunes are travelling?
Optional
Feel free to take a picture of yourself and include with your log. Just make sure it doesn't give away any answers to the above questions.
Please note : You are welcome to log this Earthcache after sending your answers to me. If no answers are received, your log will be deleted. Please be mindful of your logs to ensure there are no spoiler images/answers for the questions above, spoilers will also be removed.