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Climate Change and Low-Lying Coastal Mississippi River Delta, USA – February 17th, 2013

29.9N 90W

February 17th, 2013 Category: Climate Change, Image of the day, Rivers, Sediments

USA – January 25th, 2013

Here, sediments can be seen spilling forth from the Mississippi River in Louisiana, USA. The low lying, coastal Mississippi River Delta region is particularly vulnerable to the climate change threats of sea level rise, increased flood risk and more intense hurricanes. The area is additionally plagued by human-induced environmental degradation that has occurred over the past 200-300 years. The region has lost 1,900 square miles of land since the 1930s and is losing the wetland areas that are crucial to the region’s ecosystem function, economy and character.

Global climate change has induced an increase in global mean sea level with a 3.1 mm/year average rate of increase since 1991. Climate projections indicate a widespread increase of more intense precipitation events, with an associated increased risk of flooding. Similarly, climate scientists also predict an increase in hurricane wind speed and total volume (click here for more information).

Sunglint Highlights Mississippi River and Delta, USA – June 3rd, 2011

29.9N 90W

June 3rd, 2011 Category: Image of the day, Rivers

USA - May 18th, 2011

Sun glint on the various bodies of water in this image makes it easy to see the contours of the Mississippi River Delta, in Louisiana, USA, on the Gulf of Mexico.

The glint also highlights the path of the Mississippi River on the way to the delta, passing through the city of New Orleans on the southern shores of Lake Pontchartrain.


Mississippi River and Gulf Outlet Canal by New Orleans, USA – March 10th, 2011

30.0N 89.6W

March 10th, 2011 Category: Image of the day, Lakes, Rivers

USA - February 18th, 2011

The city of New Orleans sits along the shores of Lake Pontchartrain (upper left corner) in Louisiana, USA. Another body of water, Lake Borgne, can be seen to the right.

The Mississippi River passes through the city on its way to the Gulf of Mexico. While the river follows a curved path, a significantly straighter canal can be observed to the right, passing near the shores of Lake Borgne.

This is the Mississippi River – Gulf Outlet Canal, a 76 mi (122 km) channel constructed in the mid-20th century that provided a shorter route between the Gulf of Mexico and New Orleans’ inner harbor Industrial Canal via the Intracoastal Waterway.

Lake Maurepas by Mississippi River and Delta, USA – January 14th, 2011

29.9N 90.5W

January 14th, 2011 Category: Image of the day, Lakes, Rivers

USA - December 26th, 2010

The Mississippi River passes by several lakes in southern Louisiana, USA, on its way to its delta in the Gulf of Mexico (the delta can be observed in great detail in the lower part of the full image).

The large lake just right of center is Lake Maurepas, a brackish body of water that connects with Lake Pontchartrain (partially visible at right edge) via Pass Manchac, a narrow channel.

South of the river, the smaller Lac des Allemands (French for “Lake of the Germans”) can be observed. It is a 12000 acre lake that is shallow, reaching a maximum depth of slightly more than 10 feet (3.3 m).

New Orleans by Mississippi River and Lake Pontchartrain, USA – November 20th, 2010

29.9N 90W

November 20th, 2010 Category: Image of the day, Lakes, Rivers, Sediments

USA - November 9th, 2010

The city of New Orleans is visible as a grey area in the Mississippi River Delta, on the east and west banks of the Mississippi River and south of Lake Pontchartrain (greenish in color).

The city is located approximately 105 miles (169 km) upriver from the Gulf of Mexico. By following the river downstream, one can see sediments pouring out of the delta area and into the gulf. The area along the river is characterized by ridges and hollows.