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What are the requirements for a river delta to form?
How can a river delta not be at the mouth? (Mississippi example)What are some of the reasons for a river to split?How do I simulate the path of a river?Almost tidally locked to moon and the tides it would createWith medieval technology and governance, what advantages would a long tunnel have over river travel?Would a “city on a bridge” be friendlier to the environment than a more typical city on land?Is it possible for a river to flow in a spiral pattern?How common is it for a river to enter a valley from a flatter plain?Salty or fresh or brackish waters?Rivers without rain
$begingroup$
I know that when some rivers (such as the Nile) flow out to sea, they break up into several smaller channels. But I was wondering about the necessary features of the land and water for it to occur.
geography rivers
edited 58 mins ago
Cyn
12.8k12760
asked 3 hours ago
user64727user64727
111
New contributor
user64727 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
I know that when some rivers (such as the Nile) flow out to sea, they break up into several smaller channels. But I was wondering about the necessary features of the land and water for it to occur.
geography rivers
edited 58 mins ago
Cyn
12.8k12760
asked 3 hours ago
user64727user64727
111
New contributor
user64727 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
1
$begingroup$
It depends. is there a specific time frame you want it to form within?
$endgroup$
– Greenie E.
3 hours ago
add a comment |
$begingroup$
I know that when some rivers (such as the Nile) flow out to sea, they break up into several smaller channels. But I was wondering about the necessary features of the land and water for it to occur.
geography rivers
edited 58 mins ago
Cyn
12.8k12760
asked 3 hours ago
user64727user64727
111
New contributor
user64727 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
I know that when some rivers (such as the Nile) flow out to sea, they break up into several smaller channels. But I was wondering about the necessary features of the land and water for it to occur.
geography rivers
geography rivers
edited 58 mins ago
Cyn
12.8k12760
asked 3 hours ago
user64727user64727
111
New contributor
user64727 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 58 mins ago
Cyn
12.8k12760
asked 3 hours ago
user64727user64727
111
New contributor
user64727 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 58 mins ago
Cyn
12.8k12760
edited 58 mins ago
Cyn
12.8k12760
edited 58 mins ago
Cyn
12.8k12760
12.8k12760
asked 3 hours ago
user64727user64727
111
New contributor
user64727 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 hours ago
user64727user64727
111
asked 3 hours ago
user64727user64727
111
111
New contributor
user64727 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
user64727 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
user64727 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
$begingroup$
It depends. is there a specific time frame you want it to form within?
$endgroup$
– Greenie E.
3 hours ago
add a comment |
1
$begingroup$
It depends. is there a specific time frame you want it to form within?
$endgroup$
– Greenie E.
3 hours ago
1
1
$begingroup$
It depends. is there a specific time frame you want it to form within?
$endgroup$
– Greenie E.
3 hours ago
$begingroup$
It depends. is there a specific time frame you want it to form within?
$endgroup$
– Greenie E.
3 hours ago
add a comment |
2 Answers
2
active
oldest
votes
$begingroup$
The reason why some rivers form a delta (Nile, Ganges, Mississippi, etc.) and some other form an estuary (Thames, Amazon, San Francisco Bay, etc.) is in the balance between sedimentary deposit from the river flow and sediment removal from the sea waters.
When this balance is positive (the river deposits faster than the sea can remove) a delta is formed, while when the sea removes faster than the river can deposit an estuary is formed.
On the sea side this is influenced mostly by tides and currents, while on the river side this is influenced by all the factor regulating the amount of transported sediments.
I.e. Nile has a delta, but since Aswan dam has been built, the amount of sediments transported to the sea has greatly decreased: in return this has resulted in the delta starting to be eroded by the Mediterranean sea.
answered 2 hours ago
L.Dutch♦L.Dutch
93.9k29218451
$endgroup$
$begingroup$
Interesting. I live on an estuary (we just call it a river), so I've heard the term. But this is a nice clear explanation. I think you have a typo though. "the sea removes faster than the sea can deposit..." Do you mean "sea...river"?
$endgroup$
– Cyn
56 mins ago
$begingroup$
@Cyn you got me. fixed
$endgroup$
– L.Dutch♦
53 mins ago
add a comment |
$begingroup$
If you mean geographical requirements, then all you need is,
- A body of water (preferably salty)
- Some land (the soily or sandy type) that is lower or just above sea level (optional)
- A river (the fresh kind)
If you put these together, and the river is depositing sediment from its bed faster than the ocean/sea can take it away, then boom, you got yourself one heckuva river delta. Now, if your factors do not overlap correctly, then you may end up with an estuary instead. that, you do not want.
answered 1 hour ago
Greenie E.Greenie E.
3119
$endgroup$
add a comment |
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2 Answers
2
active
oldest
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2 Answers
2
active
oldest
votes
active
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active
oldest
votes
$begingroup$
The reason why some rivers form a delta (Nile, Ganges, Mississippi, etc.) and some other form an estuary (Thames, Amazon, San Francisco Bay, etc.) is in the balance between sedimentary deposit from the river flow and sediment removal from the sea waters.
When this balance is positive (the river deposits faster than the sea can remove) a delta is formed, while when the sea removes faster than the river can deposit an estuary is formed.
On the sea side this is influenced mostly by tides and currents, while on the river side this is influenced by all the factor regulating the amount of transported sediments.
I.e. Nile has a delta, but since Aswan dam has been built, the amount of sediments transported to the sea has greatly decreased: in return this has resulted in the delta starting to be eroded by the Mediterranean sea.
answered 2 hours ago
L.Dutch♦L.Dutch
93.9k29218451
$endgroup$
$begingroup$
Interesting. I live on an estuary (we just call it a river), so I've heard the term. But this is a nice clear explanation. I think you have a typo though. "the sea removes faster than the sea can deposit..." Do you mean "sea...river"?
$endgroup$
– Cyn
56 mins ago
$begingroup$
@Cyn you got me. fixed
$endgroup$
– L.Dutch♦
53 mins ago
add a comment |
$begingroup$
The reason why some rivers form a delta (Nile, Ganges, Mississippi, etc.) and some other form an estuary (Thames, Amazon, San Francisco Bay, etc.) is in the balance between sedimentary deposit from the river flow and sediment removal from the sea waters.
When this balance is positive (the river deposits faster than the sea can remove) a delta is formed, while when the sea removes faster than the river can deposit an estuary is formed.
On the sea side this is influenced mostly by tides and currents, while on the river side this is influenced by all the factor regulating the amount of transported sediments.
I.e. Nile has a delta, but since Aswan dam has been built, the amount of sediments transported to the sea has greatly decreased: in return this has resulted in the delta starting to be eroded by the Mediterranean sea.
answered 2 hours ago
L.Dutch♦L.Dutch
93.9k29218451
$endgroup$
$begingroup$
Interesting. I live on an estuary (we just call it a river), so I've heard the term. But this is a nice clear explanation. I think you have a typo though. "the sea removes faster than the sea can deposit..." Do you mean "sea...river"?
$endgroup$
– Cyn
56 mins ago
$begingroup$
@Cyn you got me. fixed
$endgroup$
– L.Dutch♦
53 mins ago
add a comment |
$begingroup$
The reason why some rivers form a delta (Nile, Ganges, Mississippi, etc.) and some other form an estuary (Thames, Amazon, San Francisco Bay, etc.) is in the balance between sedimentary deposit from the river flow and sediment removal from the sea waters.
When this balance is positive (the river deposits faster than the sea can remove) a delta is formed, while when the sea removes faster than the river can deposit an estuary is formed.
On the sea side this is influenced mostly by tides and currents, while on the river side this is influenced by all the factor regulating the amount of transported sediments.
I.e. Nile has a delta, but since Aswan dam has been built, the amount of sediments transported to the sea has greatly decreased: in return this has resulted in the delta starting to be eroded by the Mediterranean sea.
answered 2 hours ago
L.Dutch♦L.Dutch
93.9k29218451
$endgroup$
The reason why some rivers form a delta (Nile, Ganges, Mississippi, etc.) and some other form an estuary (Thames, Amazon, San Francisco Bay, etc.) is in the balance between sedimentary deposit from the river flow and sediment removal from the sea waters.
When this balance is positive (the river deposits faster than the sea can remove) a delta is formed, while when the sea removes faster than the river can deposit an estuary is formed.
On the sea side this is influenced mostly by tides and currents, while on the river side this is influenced by all the factor regulating the amount of transported sediments.
I.e. Nile has a delta, but since Aswan dam has been built, the amount of sediments transported to the sea has greatly decreased: in return this has resulted in the delta starting to be eroded by the Mediterranean sea.
answered 2 hours ago
L.Dutch♦L.Dutch
93.9k29218451
edited 53 mins ago
answered 2 hours ago
L.Dutch♦L.Dutch
93.9k29218451
answered 2 hours ago
L.Dutch♦L.Dutch
93.9k29218451
answered 2 hours ago
L.Dutch♦L.Dutch
93.9k29218451
93.9k29218451
$begingroup$
Interesting. I live on an estuary (we just call it a river), so I've heard the term. But this is a nice clear explanation. I think you have a typo though. "the sea removes faster than the sea can deposit..." Do you mean "sea...river"?
$endgroup$
– Cyn
56 mins ago
$begingroup$
@Cyn you got me. fixed
$endgroup$
– L.Dutch♦
53 mins ago
add a comment |
$begingroup$
Interesting. I live on an estuary (we just call it a river), so I've heard the term. But this is a nice clear explanation. I think you have a typo though. "the sea removes faster than the sea can deposit..." Do you mean "sea...river"?
$endgroup$
– Cyn
56 mins ago
$begingroup$
@Cyn you got me. fixed
$endgroup$
– L.Dutch♦
53 mins ago
$begingroup$
Interesting. I live on an estuary (we just call it a river), so I've heard the term. But this is a nice clear explanation. I think you have a typo though. "the sea removes faster than the sea can deposit..." Do you mean "sea...river"?
$endgroup$
– Cyn
56 mins ago
$begingroup$
Interesting. I live on an estuary (we just call it a river), so I've heard the term. But this is a nice clear explanation. I think you have a typo though. "the sea removes faster than the sea can deposit..." Do you mean "sea...river"?
$endgroup$
– Cyn
56 mins ago
$begingroup$
@Cyn you got me. fixed
$endgroup$
– L.Dutch♦
53 mins ago
$begingroup$
@Cyn you got me. fixed
$endgroup$
– L.Dutch♦
53 mins ago
add a comment |
$begingroup$
If you mean geographical requirements, then all you need is,
- A body of water (preferably salty)
- Some land (the soily or sandy type) that is lower or just above sea level (optional)
- A river (the fresh kind)
If you put these together, and the river is depositing sediment from its bed faster than the ocean/sea can take it away, then boom, you got yourself one heckuva river delta. Now, if your factors do not overlap correctly, then you may end up with an estuary instead. that, you do not want.
answered 1 hour ago
Greenie E.Greenie E.
3119
$endgroup$
add a comment |
$begingroup$
If you mean geographical requirements, then all you need is,
- A body of water (preferably salty)
- Some land (the soily or sandy type) that is lower or just above sea level (optional)
- A river (the fresh kind)
If you put these together, and the river is depositing sediment from its bed faster than the ocean/sea can take it away, then boom, you got yourself one heckuva river delta. Now, if your factors do not overlap correctly, then you may end up with an estuary instead. that, you do not want.
answered 1 hour ago
Greenie E.Greenie E.
3119
$endgroup$
add a comment |
$begingroup$
If you mean geographical requirements, then all you need is,
- A body of water (preferably salty)
- Some land (the soily or sandy type) that is lower or just above sea level (optional)
- A river (the fresh kind)
If you put these together, and the river is depositing sediment from its bed faster than the ocean/sea can take it away, then boom, you got yourself one heckuva river delta. Now, if your factors do not overlap correctly, then you may end up with an estuary instead. that, you do not want.
answered 1 hour ago
Greenie E.Greenie E.
3119
$endgroup$
If you mean geographical requirements, then all you need is,
- A body of water (preferably salty)
- Some land (the soily or sandy type) that is lower or just above sea level (optional)
- A river (the fresh kind)
If you put these together, and the river is depositing sediment from its bed faster than the ocean/sea can take it away, then boom, you got yourself one heckuva river delta. Now, if your factors do not overlap correctly, then you may end up with an estuary instead. that, you do not want.
answered 1 hour ago
Greenie E.Greenie E.
3119
answered 1 hour ago
Greenie E.Greenie E.
3119
answered 1 hour ago
Greenie E.Greenie E.
3119
answered 1 hour ago
Greenie E.Greenie E.
3119
3119
add a comment |
add a comment |
user64727 is a new contributor. Be nice, and check out our Code of Conduct.
user64727 is a new contributor. Be nice, and check out our Code of Conduct.
user64727 is a new contributor. Be nice, and check out our Code of Conduct.
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$begingroup$
It depends. is there a specific time frame you want it to form within?
$endgroup$
– Greenie E.
3 hours ago