Frequently Asked Questions

So you have a question? This is the place to start. You can read all the frequently asked questions, or you can make finding your question easier by using the search fields below. If you don't see your question listed, please feel free to email Rose Hayward at rhayward@usgs.gov.

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Seperate key words with commas. This search is case insensitive.
Optional logic is per keyword set, ie: question key word A or/and question key word B.
And logic is used between fields, ie: question key word TYPE and response key word DUNE
Question Key Words: Or   And
Response Key Words: Or   And
 
Why are dunes significant?
Dunes provide a history of global climate change on any planet. They are shaped by seasonal and continuous winds. Changes in wind patterns don't immediately erase any shaping from past patterns; trends can be observered.