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### Re: Dynamic Planet B/C

Posted: January 1st, 2011, 7:40 am
Okay, I see where you are coming from, but if I may ask, is there a possibility that this website is more geared to the general public rather than people looking for more depth, possibly a depth that is reached by this event, and they are just simplifying it by implying the differences are irrelevant.

I am sure people do this, as I have seen many websites do it, I just wonder if that could be the case here.

Also, my source is not as good as I would hope, as it only says they are different, rather than showing why, so that is one of its pitfalls.

### Re: Dynamic Planet B/C

Posted: January 1st, 2011, 7:42 am
possibly... Now I'm all confused again D= haha

### Re: Dynamic Planet B/C

Posted: January 1st, 2011, 10:38 am
okay juuuust kidding I did some more research today and yes you're right, they're different. And I don't remember what you said the reason was but here it is:
Confined aquifers are just any aquifer that is trapped in between two layers of aquitards. However, an artesian aquifer has enough pressure that the water rises higher than usual in a well, forming a potentiometric surface, while in a normal confined aquifer the water level in a well tapped into it only rises to the top of the aquifer.
Thanks HannahD413!

### Re: Dynamic Planet B/C

Posted: January 1st, 2011, 11:21 am
That is what I thought, it had to do with pressure.

Thank you for clarifying and confirming.

### Re: Dynamic Planet B/C

Posted: January 1st, 2011, 8:39 pm
http://www.tulane.edu/~sanelson/images/artesian.gif
I think this shows it a bit more clearly, it is just that is is under the water table, however this picture shows it as a non-artesian aquifer. If this is something else, can someone clarify the potentiometric surface.

**EDIT: In this case, the water table and potentiometic surface are the same, although potentiometric surface would be more appropriate, because it is only in unconfined aquifers that they are truly synonyms.**[/quote]

I thought potentiometric surfaces only applied to confined aquifers. Once again I'm confused

Also what should we know about "stream gauging and monitoring"?

### Re: Dynamic Planet B/C

Posted: January 2nd, 2011, 6:59 am
Yes, well, sort of. In the case of unconfined aquifers, the potentiometic surface is the water table, in the picture, however, it is labeled incorrectly, it should be label potentiometic surface.

### Re: Dynamic Planet B/C

Posted: January 2nd, 2011, 10:50 pm
analyze and interpret features such as, valley shapes, erosinal landscapes, and depositional features...
thanks

### Re: Dynamic Planet B/C

Posted: January 5th, 2011, 1:43 pm
Where can I find a website that tells you how to interperate a topographic map

### Re: Dynamic Planet B/C

Posted: January 5th, 2011, 3:44 pm
http://egsc.usgs.gov/isb/pubs/booklets/symbols/

Scroll down a bit and you'll get to a key for symbols and shading and stuff that can help you with interpretation.

### Re: Dynamic Planet B/C

Posted: January 6th, 2011, 12:08 pm
Could anyone tell me any good websites to get diagrams or info