Dynamic Planet B/C

[mnstrviola]

I think I've already asked/mentioned this but I still don't really understand topographical maps. Like... I understand contour lines decently but like how do you identify things on one? Like seeing a random map and identifying what river it is or something. Idk, I could just use a little help/practice with them.

Aren't rivers just a blue line?
The key to understanding topographic maps is practice. Which is why I too fail at reading them.
Does anyone know where we could practice reading them? I checked around USGS for a bit but there weren't a lot of satisfactory maps.

[tornado guy]

Buy the national test from last year.

[rfscoach]

Buy the national test from last year.

It doesn't come with pictures of the maps and the book they were taken from is hard to find.

[EastStroudsburg13]

I think I've already asked/mentioned this but I still don't really understand topographical maps. Like... I understand contour lines decently but like how do you identify things on one? Like seeing a random map and identifying what river it is or something. Idk, I could just use a little help/practice with them.

Rivers are labeled on the maps. You can also tell a river by the V-shaped contour lines pointing upstream. And depending on the contour interval, every 100 feet or 200 feet will be labeled, so you can use the labeled contours to find what elevations all of the contour lines correspond with.

I sometimes find it hard to teach someone to read a map because I'm so interested in them, and I've looked at maps since I was like 4. So yeah, just keep practicing, because chances are the answer is on there somewhere.

[fanjiatian]

Does anyone know of good glaciology textbooks?

[Fossil Freak 25]

Will we have to know how to graph sinuosity vs gradient? I took a textbook quiz, and they asked me to do that :/

[mnstrviola]

Will we have to know how to graph sinuosity vs gradient? I took a textbook quiz, and they asked me to do that :/

Haha, it sounds harder than it is. Because rivers are more sinuous when there is a lower gradient, it would look like a diagonal line going from top-left to bottom-right. I think it would be a little curved.

[aznluvsricemhm]

Why are rivers more sinuous at a lower gradient rather than a steep gradient?

[mnstrviola]

Think about it. Water, flowing down a really steep mountain... it's going so fast it doesn't have time to curve and stuff, rather it takes a more direct route. Now, say for a flat surface and water flowing very slowly, it is easier to make bends. Once even a small bend is made weathering and deposition make it a bigger bend and etc.

[aznluvsricemhm]

thanks
Just making sure....also, does anyone know where I can find a list of acidic lake types? Thanks