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Posts tagged Marshes

Oil Coats Louisiana’s Shorelines and Reaches into Marshes, USA – May 25th, 2010

25.6N 92.4W

May 25th, 2010 Category: Environmental Disasters, Image of the day

Gulf of Mexico, USA - May 21st, 2010

Gulf of Mexico, USA - May 21st, 2010

Crews try to clean an island covered in oil on the south part of East Bay May 23rd, 2010. (© REUTERS/Daniel Beltra/Greenpeace)

Crews try to clean an island covered in oil

Over one month after the initial explosion and sinking of the Deepwater Horizon oil rig, crude oil continues to flow into the Gulf of Mexico, and oil slicks have slowly reached as far as 12 miles into Louisiana’s marshes. According to Louisiana Governor Bobby Jindal, more than 65 miles of Louisiana’s shoreline has now been oiled.

BP said it will be at least Wednesday before they will try using heavy mud and cement to plug the leak, a maneuver called a “top kill” that represents their best hope of stopping the oil after several failed attempts.

Based on low estimates, at least 6 million gallons of crude have spewed into the Gulf so far – though some scientists have said they believe the spill already surpasses the 11 million-gallon 1989 Exxon Valdez oil spill off Alaska as the worst in U.S. history.

Marsh Regions Around Tanana River, Alaska, USA

64.8N 147.6W

September 29th, 2009 Category: Rivers

USA - September 6th, 2009

USA - September 6th, 2009

The Tanana River is a tributary of the Yukon River in the state of Alaska, USA. It flows in a northwesterly direction from near the border with the Yukon Territory, and laterally along the northern slope of the Alaska Range.

In the area of central Alaska visible in this orthorectified image, the river emerges into a lowland marsh region known as the Tanana Valley (left) and passes to the south of the city of Fairbanks (right). In the marsh regions it is joined by several large tributaries, including the Nenana (bottom edge) and the Kantishna.

Ebro Delta and Barcelona, Spain

40.5N 0.6E

August 22nd, 2009 Category: Rivers

Spain - July 28th, 2009

Spain - July 28th, 2009

The provinces of Tarragona and Barcelona, in eastern Spain, in the southern part of the autonomous community of Catalonia, enjoy a long stretch of coastline bordering the Mediterranean Sea. The city of Barcelona can be seen on the shoreline in the upper right quadrant.

The coast is mostly free of sediments, probably due to a lack of rain during the dry, hot summer months typical of this region. However, some sediments can be seen flowing in a northeast direction from the mouth of the Ebro River in the Ebro Delta.

The delta is one of the largest wetland areas in the western Mediterranean region, at 320 km² and growing. Currently, the delta is used intensively for agriculture, including rice, fruit, and vegetables. It also contains many beaches, marshes, and salt pans.

Mouth of Senegal River by Saint Louis

16.0N 16.4W

August 21st, 2009 Category: Rivers

Senegal - July 2nd, 2009

Senegal - July 2nd, 2009

The Senegal River is a 1790 km long river in West Africa that forms the border between Senegal (below) and Mauritania (above). It is formed by the confluence of the Semefé (Bakoy) and Bafing Rivers at Bafoulabé.

From Bafoulabé the river flows west and then north through the spectacular Talari Gorges near Galougo and over the Gouina Falls, then flows more gently past Kayes and through semi-arid land along the northern border of Senegal to the Atlantic.

Approaching its mouth, the Senegal passes through Biffeche and the island on which the city of Saint Louis is located, then turns south. Around Saint Louis, there are marshes – flood basins that form during the rainy season when the river overflows into the countryside, creating ponds and stretches of mangroves that attract birds like flamingos and pelicans.

By the coast and Saint Louis, the Senegal River is separated from the Atlantic Ocean by a thin strip of sand called the Langue de Barbarie. The entire strip stretches 600km from Nouadhibou in Mauritania to Saint-Louis, of which a 25km section separates the Senegal River from the Atlantic Ocean. Its vegetation mainly consists of Filao trees, propagated to prevent soil erosion in sandy and salty soils.

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