NASA: It is happening now - Está sucediendo ahora - 28-5-10 - Flooding in Southern China - Inundaciones en el sur de China - Kata Tjuta (The Olgas). Northern Territory. Australia
Posted by Ricardo Marcenaro | Posted in NASA: It is happening now - Está sucediendo ahora - 28-5-10 - Flooding in Southern China - Inundaciones en el sur de China - Kata Tjuta (The Olgas). Northern Territory. Australia | Posted on 13:30
Nearly a month of heavy rain flooded provinces throughout southern China, causing landslides, bursting dikes, forcing the evacuation of some 685,000 residents, and causing more than 100 deaths, according to news reports. Fujian Province, a coastal area along the Taiwan Strait, was one of the hardest-hit areas.
The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured these images of part of Fujian Province on May 25, 2010 (top), and May 2, 2010 (bottom). The images use a combination of infrared and visible light to increase the contrast between water and land. Water and water-saturated areas vary in color from navy to electric blue. Vegetation is green. Clouds are turquoise. Urbanized areas appear pinkish-tan.
At multiple points along the coast, water levels are higher in late May than in early May, especially in the vicinity of Quanzhou.
References
- Associated Press. (2010, May 25). Floods kill 115 in southern China. Accessed May 27, 2010.
- China.org.cn. (2010, May 24). Warning of floods in Pearl River Delta region. Accessed May 27, 2010.
NASA image courtesy MODIS Rapid Response Team at NASA GSFC. Caption by Michon Scott.
- Instrument: Terra - MODIS
Located in the Northern Territory of Australia, Uluru-Kata Tjuta National Park hosts some of the world’s most spectacular examples of inselbergs, or isolated mountains. The most famous of these inselbergs is Uluru (also known as Ayers Rock). An equally massive inselberg located approximately 30 kilometers (20 miles) to the northwest is known as Kata Tjuta. Like Uluru, this is a sacred site to the native Anangu or Aboriginal people. An English-born explorer named the highest peak Mount Olga, with the entire grouping of rocks informally known as “the Olgas.” Mount Olga has a peak elevation of 1,069 meters (3,507 feet) above sea level, making it 206 meters (676 feet) higher than Uluru.
In this astronaut photograph, afternoon sunlight highlights the rounded summits of Kata Tjuta against the surrounding sandy plains. Sand dunes are visible at image lower left, while in other areas (image bottom and image right) sediments washed from the rocks have been anchored by a variety of grasses and bushes adapted to the arid climate. Green vegetation in the ephemeral stream channels that drain Kata Tjuta (image top center) provides colorful contrast with the red rocks and surrounding soils. Large gaps in the rocks (highlighted by shadows) are thought to be fractures that have been enlarged due to erosion.
Kata Tjuta is comprised of gently dipping Mount Currie Conglomerate, a sedimentary rock that includes rounded fragments of other rock types (here, primarily granite with less abundant basalt and rhyolite in a coarse sandy matrix). Geologists interpret the Mount Currie Conglomerate as a remnant of a large fan of material rapidly eroded from mountains uplifted approximately 550 million years ago. Subsequent burial under younger sediments consolidated the eroded materials to form the conglomerate exposed at the surface today.
Astronaut photograph ISS023-E-29806 was acquired on April 30, 2010, with a Nikon D3 digital camera fitted with an 800 mm lens, and is provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Center. The image was taken by the Expedition 23 crew. The image in this article has been cropped and enhanced to improve contrast. Lens artifacts have been removed. The International Space Station Program supports the laboratory as part of the ISS National Lab to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC Gateway to Astronaut Photography of Earth. Caption by William L. Stefanov, NASA-JSC.
- Instrument: ISS - Digital Camera
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Mis blogs son una casa abierta a todas las culturas, religiones y países. Se un seguidor si quieres, con esta acción usted está construyendo una nueva cultura de la tolerancia, la mente y el corazón abiertos para la paz, el amor y el respeto humano.
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