## Dynamic Planet B/C

Crazy Puny Man
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### Re: Dynamic Planet B/C

Wikipedia.
+1

rtunnel97
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### Re: Dynamic Planet B/C

Wikipedia.
+1
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PacificGoldenPlover
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### Re: Dynamic Planet B/C

For those who know glens flow law: What unit do you measure shear strain in?
A little bit late, but I believe it is Pascals.
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PacificGoldenPlover
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### Re: Dynamic Planet B/C - Glacier Mass Balance

I'm looking for practice problems on glacial mass balance and chart interpretation-- never figured out how to do that last year but now I need to learn. For example, if given a table of data titled simply "Glacial Mass Balance" and it gives years, glaciers' names, no units for anything, and a list of positive and negative numbers.... Blah. Are the numbers +/- from each previous year?? As in, if 1995 is -0.07 and 1996 is -0.01, is the total cumulative loss in mass balance -0.08, or -0.01? I originally assumed that it was a cummulative figure given for each years' new losses, so the number given was -0.01 down from the original, but now I'm thinking that doesn't make sense...I'm also assuming here that (-) refers to a loss in glacial mass balance (so ablation>accumulation) but I also want to be sure about that, just in case.

If anybody could help me out in this department, I'd appreciate it, thanks.
Also very late, but my take on it:
The two numbers you cited are NET balance: The glacier lost .07 (insert units here) in 1995 and lost .01 in 1996. That means, between 1995 and 1996, there was a cumulative loss of .08.
Just a wild stab in the dark here, but your table probably contained two rows to the left: one for accumulation, and one for ablation. The net balance number should be obtained by subtracting the ablation from the accumulation number.
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Ahren07
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### Re: Dynamic Planet B/C

Can anyone give me some good study links? Im having trouble understanding this event and am short of some information. I have 15 days until my first competition and really need some good links. Thanks.
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PacificGoldenPlover
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### Re: Dynamic Planet B/C

Are you familiar with http://nsidc.org/ yet?
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DynamicPlanet14
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### Re: Dynamic Planet B/C

What resources did you guys use to learn how to read USGS maps? I am struggling with the representative activities. Thanks!

zyzzyva980
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### Re: Dynamic Planet B/C

From a couple of years in Road Scholar, the best way to learn how to read maps is to read maps.

As unhelpful as that sounds, it works- just take some time to pore over a few maps and understand what every single funny marking means. The USGS website has lots of helpful aids as well.
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EastStroudsburg13
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### Re: Dynamic Planet B/C

It might be fun to try reading a map of the area that you live in. That way you might be able to recognize certain landmarks on the graph, which will help you remember them in the future. Personally, I like reading maps regardless, but I'm a little insane, so I recognize that it might not be as easy for someone else.
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### Re: Dynamic Planet B/C

Does anyone have any ways to study pictures of glaciers? The picture ID sections sometimes trip me up.