- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
re: comparison of the Amazon, Nile and Mississippi
Posted on 7/6/21 at 12:07 pm to Y.A. Tittle
Posted on 7/6/21 at 12:07 pm to Y.A. Tittle
quote:Fun fact: the Appalachians are so old that the Scottish Highlands are part of the same mountain range.
Determining the "age" of a river is a bit of an inexact science, but there are several that are purported to be older than the Nile, including two in the Appalachians (the French Broad and the New), which may be about 10 times as old as the Nile (30 million vs 300+ million years old).
2
Posted on 7/6/21 at 12:08 pm to Korkstand
quote:
, including two in the Appalachians (the French Broad
Great little river to kayak on.
Posted on 7/6/21 at 12:10 pm to Volvagia
quote:
At its narrowest it’s over a half mile wide, and is over 50 miles wide for most of the run.
That's insane.
Posted on 7/6/21 at 12:10 pm to real turf fan
I like how they stop the Mississippi flow at Morganza... THEY KNOW 
Posted on 7/6/21 at 12:11 pm to Centinel
Is that what they call it in France?
Posted on 7/6/21 at 12:11 pm to LSUtigerME
quote:
didn’t look up any stats, but is the Amazon much larger than the other two?
Yes. From the numbers posted above, about 10x the volume goes through the Amazon compared to the other two.
quote:
If the river is wider and deeper, then the speed of flow could be significantly less than the comparison depicted.
The volume of the Amazon is much larger, the actual dimensions of the River may be larger, but is it 10x larger? I don’t know and I don’t think so.
Posted on 7/6/21 at 12:12 pm to Korkstand
quote:
Depends on the season but it's 50+ miles wide in some spots and probably twice as deep as the mississippi on average.
50 miles wide? I didn’t think we were counting flood plain as an active part of the river. I mean, that’s over twice as wide as Lake Ponchatrain
Posted on 7/6/21 at 12:13 pm to Volvagia
quote:
At its narrowest it’s over a half mile wide, and is over 50 miles wide for most of the run.
That’s nuts to me.
Posted on 7/6/21 at 12:13 pm to real turf fan
Need to test the Amazon for weed
Posted on 7/6/21 at 12:15 pm to Oilfieldbiology
quote:
50 miles wide? I didn’t think we were counting flood plain as an active part of the river. I mean, that’s over twice as wide as Lake Ponchatrain
Ya, ponchartrain is just a river heading out through the rigolets.
Posted on 7/6/21 at 12:15 pm to Korkstand
it wasn't a very good one
Posted on 7/6/21 at 12:16 pm to Korkstand
quote:
It is estimated that approximately one-fifth of all the water that runs on the Earth's surface is carried by the Amazon River, according to the Encyclopedia Britannica. In fact, it has greater volume and total discharge than the next six largest rivers combined.
During the dry season (June to November) the width of the Amazon River averages between 2 to 6 miles (3.2 to 9.6 km) depending on the area, and in the wet season (December through April) the width can reach up to 30 miles. At the height of wet season, the current can travel more than 4 mph (6.4 km/h).
Live science link
I had no idea the damn thing was 2-4 miles wide in the dry season, and while 30 miles is much less than 50 miles, that is still an absolutely insane size of a river. Holy hell I knew the Amazon was big, but I didn’t realize it was THAT big
This post was edited on 7/6/21 at 12:17 pm
Posted on 7/6/21 at 12:17 pm to Oilfieldbiology
quote:I don't know how they count it, but just measuring on the satellite view it's got a nice looking channel about 5 miles wide for a good portion of its length. And if it's twice as deep as the mississippi there's your 10x flow at similar water speed.
50 miles wide? I didn’t think we were counting flood plain as an active part of the river. I mean, that’s over twice as wide as Lake Ponchatrain
Posted on 7/6/21 at 12:19 pm to LEASTBAY
quote:
Do the Turds slow down the flow?
If the comparison was amounts of human feces in a major world river the winner would be the Ganges.
Posted on 7/6/21 at 12:20 pm to Korkstand
I remember watching a show (maybe river monsters) where they were fishing in the Congo, and apparently that is the deepest river in the world at 722’. It’s so deep that some fishermen with drag nets catch fish that die of the bends due to the rapid decompression experienced when hauling the net up
Live science link again
Live science link again
Posted on 7/6/21 at 12:21 pm to Tortious
What makes it so unique is that it’s basically a constantly flowing marshland.
Posted on 7/6/21 at 12:23 pm to real turf fan
Factoid I remember from a YouTube video: When South America and Africa were joined as part of the super-continent Godwana, a much longer Amazon River flowed east to west across the Sahara and Brazil and emptied into the ocean on South America’s west coast. The Andes did not yet exist.
Posted on 7/6/21 at 12:26 pm to Oilfieldbiology
quote:
The volume of the Amazon is much larger, the actual dimensions of the River may be larger, but is it 10x larger? I don’t know and I don’t think so.
It's much larger than 10x. MUCH.
The Amazon has more flow than the 2nd-8th largest combined. None of which are the Mississippi (14th most flow) or the Nile (which is way down at 95th place).
It's massive.
Posted on 7/6/21 at 12:27 pm to Kentucker
quote:
Factoid I remember from a YouTube video: When South America and Africa were joined as part of the super-continent Godwana, a much longer Amazon River flowed east to west across the Sahara and Brazil and emptied into the ocean on South America’s west coast. The Andes did not yet exist.
I mean this with all sincerity:
Posted on 7/6/21 at 12:28 pm to LSUBoo
OP says MS is 16,200 m^3/s while the Amazon is ~175,000 m^3/s. That’s about 10x
Page 2 of 4
Popular
Back to top
Follow TigerDroppings for LSU Football News