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Tacloban Before and After Haiyan

Credits
USGS / EROS; Link: http://earthobservatory.nasa.gov/

The taifun Haiyan hit the phillipines with wind speed up to 315 km/h, accompanied by a spring flood, on the 8th of November 2013. A water wall, 7.5 m in height, threatened the city of Tacloban which is located less than 5 m above sea level. The satellite image taken by ASTER shows vegetation in red, sealed surfaces in white to silver, soil in brown and water in black. The white spots are clouds.

Ouachita Mountains

Credits
NASA/GSFC (Jesse Allen, Robert Simmon); Link: http://earthobservatory.nasa.gov

The Ouachita Mountains in west central USA are more than 300 million years old. Today, they are weather-beaten and noticeably  eroded. The remains that you can see in this image were once a part of a much more extensive mountain range that is believed to have spanned from Texas to Southeast Canada. The image combined information from the wavelength ranges of infrared, red and green. The complex shape of the mountains is characterised by a pattern of longish, folded formations. Between the mountain slopes, you can see water, vegetation, cities and streets.

 

Egmont National Park

Credits
NASA/GSFC; Link: http://earthobservatory.nasa.gov

The volcano Mount Taranaki in Egmont National Park on the west coast of New Zealand’s North Island is currently dormant. Mount Taranaki is located in an area with heavy precipitation and a mild maritime climate. In this image, the peak of the almost perfectly symmetrical stratovulcano is covered with snow. Due to the radial limitation of the nature reserve surrounding the volcanic crater, the land-cover pattern is striking. The extensive rain forest in the surroundings of the volcano contrasts with the neighbouring farmland.

 

Centre-Pivot Irrigation in Kansas

Credits
USGS; Link: http://earthexplorer.usgs.gov/

Approximately 80 per cent of the global water consumption can be ascribed to irrigation farming. In this false-colour image from above Kansas, red stands for healthy vegetation while farmland sticks out due to its conventional and circular irrigation. The so-called centre-pivot irrigation is common in dry areas with a large land-use management. Its characteristic shape is clearly visible from space.

 

Location: Kansas, USA
Picture taken on September 26, 2010
Sensor: Terra ASTER
Band combination: Vis/NIR

High Speed Test Track in Italy

Credits
NASA/GSFC; Link: http://earthobservatory.nasa.gov

In this satellite image, you can see the circular shape of the high speed test track Pista di Nardò, located next to the town of Nardò in South Italy. Due to its banked lanes, vehicles can pick up speeds of up to 500 km/h on a 12,6 km lane. Since the track was built in 1970, car companies and racing drivers have been using it for test runs. If you are driving at a speed of about 320 km/h, you feel like you are driving in a straight lane.

 

Location: Nardò, Italy
Picture taken on August 17, 2007
Sensor: Terra ASTER
Band combination: R/G/B

The Great Wall of China

Credits
NASA/GSFC; Link: http://visibleearth.nasa.gov

This satellite image shows an area in the north of the Chinese province Shanxi. The blanket of snow reflects the low sun and highlights a part of the Great Wall of China which crosses the picture as a diagonal line. Also called the “Great Wall”, this famous landmark is more than 2000 years old and was built during a period of 1000 years. It is 7240 km long and stretches from Korea to the Gobi Desert. The Great Wall of China was erected in order to protect China against attacks from the north.

 

Floods in Australia

Credits
NASA/GSFC (Jesse Allen); Link: http://earthobservatory.nasa.gov

Heavy rainfall in Queensland, Australia, caused the flooding of Fitzroy River in January 2011. Large parts of the city of Rockhampton were flooded as well. This false-colour image highlights the contrast between the brown water of the river, which is rich in sediment, and its surroundings. The light-reflecting surfaces of the buildings and of the clouds framing this scene are pearly-white. When the floods started to retreat at the end of January 2011, it left a mixture of mud, water and destroyed infrastructure behind.

 

Mount Vesuvius

Credits
NASA/GSFC/METI/Japan Space Systems; U.S./Japan ASTER Science Team; Link: http://asterweb.jpl.nasa.gov

This image shows Mount Vesuvius, the only active volcano on the European mainland. Mount Vesuvius erupted in AD 79 and buried its surrounding areas under a blanket of ashes that was approximately 30m thick. The excavation finds from the city of Pompeii constitute a snapshot of Roman life 2000 years ago: Perfectly intact wooden items, groceries and traces of hundreds of victims of the catastrophe. Mount Vesuvius has never rested and is constantly monitored for potential signs of a new eruption.

Lignite Surface Mines in Germany

Credits
NASA/GSFC; Link: http://visibleearth.nasa.gov

This image shows an area in North Rhine-Westphalia spanning 30x36 km. The numerous rectangular areas depict agricultural plains. Bright shades of green signal plant growth, dark shades of green stand for forests and shades of grey indicate bare ground. Settlements are characterised by the accumulation of blue and grey pixels connected by thin lines (streets). The three large areas standing out due to their bright white and dark blue colour are the three big lignite surface mines in Garzweiler, Hambach and Inden.