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Geography- The Seine River?
- Thread starter Jess
- Start date
It rises on the Langres plateau, 18 mi (30 km) northwest of Dijon, and flows through Paris before emptying into the English Channel at Le Havre after a course of 485 mi (780 km). Its tributaries include the Marne and Oise rivers. It drains an area of about 30,400 sq mi (78,700 sq km) in northern France; its network carries most of France’s inland waterway traffic.
The average depth of the Seine today at Paris is about eight metres. Until locks were installed to artificially raise the level in the 1800s, however, the river was much shallower within the city most of the time, and consisted only of a small channel of continuous flow bordered by sandy banks (depicted in many illustrations of the period). Today depth is tightly controlled and the entire width of the river between the built-up banks on either side is normally filled with water. The average flow of the river is very low, only a few cubic metres per second, but much higher flows are possible during periods of heavy runoff. Special reservoirs upstream help to maintain a constant level for the river through the city, but during periods of extreme runoff significant increases in river level may or may not occur.
The average depth of the Seine today at Paris is about eight metres. Until locks were installed to artificially raise the level in the 1800s, however, the river was much shallower within the city most of the time, and consisted only of a small channel of continuous flow bordered by sandy banks (depicted in many illustrations of the period). Today depth is tightly controlled and the entire width of the river between the built-up banks on either side is normally filled with water. The average flow of the river is very low, only a few cubic metres per second, but much higher flows are possible during periods of heavy runoff. Special reservoirs upstream help to maintain a constant level for the river through the city, but during periods of extreme runoff significant increases in river level may or may not occur.
Pankaj Debbarma
New member
Hi Jess.
Here are few information that may be helpful for you.
Origin : Burgundy
Mouth : The English Channel (Bay of the Seine at Le Havre)
Basin countries : France
Length : 776 km (482 mi)
Source elevation : 471 m (1,550 ft)
Avg. discharge : 500 m3/s (18,000 cu ft/s)
Basin area : 78,650 km2 (30,370 sq mi)
And the environmental issue of the Seine River is Water quality.
Periodically the sewerage systems of Paris experience a failure known as sanitary sewer overflow, often in periods of high rainfall. Under these conditions untreated sewage has been discharged into the Seine. The resulting oxygen deficit is principally caused by allochthonous bacteria larger than one micron in size. The specific activity of these sewage bacteria is typically three to four times greater than that of the autochthonous (background) bacterial population. The pH level of the Seine at Pont Neuf has been measured to be 8.46.
In 2009, it was announced that Atlantic salmon had returned to the Seine
Regards.
Here are few information that may be helpful for you.
Origin : Burgundy
Mouth : The English Channel (Bay of the Seine at Le Havre)
Basin countries : France
Length : 776 km (482 mi)
Source elevation : 471 m (1,550 ft)
Avg. discharge : 500 m3/s (18,000 cu ft/s)
Basin area : 78,650 km2 (30,370 sq mi)
And the environmental issue of the Seine River is Water quality.
Periodically the sewerage systems of Paris experience a failure known as sanitary sewer overflow, often in periods of high rainfall. Under these conditions untreated sewage has been discharged into the Seine. The resulting oxygen deficit is principally caused by allochthonous bacteria larger than one micron in size. The specific activity of these sewage bacteria is typically three to four times greater than that of the autochthonous (background) bacterial population. The pH level of the Seine at Pont Neuf has been measured to be 8.46.
In 2009, it was announced that Atlantic salmon had returned to the Seine
Regards.
Pankaj Debbarma
New member
Hi Jess.
Here are few information that may be helpful for you.
Origin : Burgundy
Mouth : The English Channel (Bay of the Seine at Le Havre)
Basin countries : France
Length : 776 km (482 mi)
Source elevation : 471 m (1,550 ft)
Avg. discharge : 500 m3/s (18,000 cu ft/s)
Basin area : 78,650 km2 (30,370 sq mi)
And the environmental issue of the Seine River is Water quality.
Periodically the sewerage systems of Paris experience a failure known as sanitary sewer overflow, often in periods of high rainfall. Under these conditions untreated sewage has been discharged into the Seine. The resulting oxygen deficit is principally caused by allochthonous bacteria larger than one micron in size. The specific activity of these sewage bacteria is typically three to four times greater than that of the autochthonous (background) bacterial population. The pH level of the Seine at Pont Neuf has been measured to be 8.46.
In 2009, it was announced that Atlantic salmon had returned to the Seine
Regards.
Here are few information that may be helpful for you.
Origin : Burgundy
Mouth : The English Channel (Bay of the Seine at Le Havre)
Basin countries : France
Length : 776 km (482 mi)
Source elevation : 471 m (1,550 ft)
Avg. discharge : 500 m3/s (18,000 cu ft/s)
Basin area : 78,650 km2 (30,370 sq mi)
And the environmental issue of the Seine River is Water quality.
Periodically the sewerage systems of Paris experience a failure known as sanitary sewer overflow, often in periods of high rainfall. Under these conditions untreated sewage has been discharged into the Seine. The resulting oxygen deficit is principally caused by allochthonous bacteria larger than one micron in size. The specific activity of these sewage bacteria is typically three to four times greater than that of the autochthonous (background) bacterial population. The pH level of the Seine at Pont Neuf has been measured to be 8.46.
In 2009, it was announced that Atlantic salmon had returned to the Seine
Regards.