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Floods Across the Western Sahel
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Published September 21, 2009
These false-color images show the Inner Niger Delta in Mali on August 24, 2009,and September 18, 2009. The September 18 image shows wetlands soaked by rains.
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Oil Slick in the Timor Sea
What was probably a sheen of oil calmed the waters of the Timor Sea and darkened the mirror-like reflection of the sun when the Moderate Resolution Imaging Spectroradiometer on NASA’s Terra satellite captured this image on September 17, 2009.
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Dust storm off West Africa
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Lago Erepecu and Rio Trombetas, Brazil
In this astronaut photo, the mirror-like reflection of sunlight off water makes the Trombetas River and Lake Erepecu in the Brazilian Amazon stand out from the deep green forest.
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Changes on Ol Doinyo Lengai
Published September 20, 2009
In September 2007, a series of explosive eruptions altered the summit of the volcano, the only one that erupts natrocarbonatite lava.
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North Pole Sea Ice Minimum 2009
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Published September 19, 2009
On September 12, 2009, sea ice reached its annual minimum extent, covering 5.10 million square kilometers (2.97 million square miles) of the Arctic Ocean. This image shows the 2009 ice extent compared to the 1979-2000 average.
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Station Fire Burn Scar
Published September 18, 2009
Captured September 16, 2009, this false-color image shows the brown-red burn scar left by the Station Fire north of the city of Los Angeles.
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Fires in Mozambique
Red outlines in this true-color image from September 17, 2009, show hotspots where fires burn. Smoke is especially conspicuous over the Indian Ocean.
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Super Typhoon Choi-Wan
Though Typhoon Choi-wan maintains its tightly wound symmetric shape in this photo-like image from September 18, 2009, the striking clear eye of previous days is gone.
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Typhoon Choi-wan (15W) south of Japan, Pacific Ocean
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Precision Farming in Minnesota
Lush green fields dominate this Landsat image of northwest Minnesota from September 10, 2009, though some crops have already been harvested leaving squares of tan and brown.
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Published September 17, 2009
Super Typhoon Choi-wan is formidable in these images, with tightly spiraling bands of clouds and a distinct eye. A vertical cross section of the storm reveals towering clouds and a clear eye surrounded by dense clouds.
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