File:ISS-062-E136862 (Copper Creek) lrg.jpg

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English: Red-tinted sands and dark green braided streams provide a colorful contrast within Australia’s Channel Country. As the International Space Station (ISS) was passing over southwest Queensland, an astronaut took this photo of the Cooper Creek floodplain.

The Barcoo and Thomson rivers flow southwest and converge north of the town of Windorah to form Cooper Creek, a major river system that flows toward Lake Yamma Yamma and Lake Eyre (both outside this frame). The broad, gently sloping floodplain—more than 50 kilometers (30 miles) wide in some areas—allows for the development of a complex network of shallow channels carved by seasonal floods. The region provides significant habitat for water birds and has been classified by the Australian government as an Important Bird Area.

Ancient linear dunes, trending in an east-west direction, rise above the floodplain. Their Mars-like red color comes from traces of iron that coat larger quartz grains. Known as paleodunes, these features point to a drier past climate during their formation and migration. As the climate in this region has become slightly wetter (but still arid), vegetation density has increased, reducing the impact of wind and water on the dunes and halting most of their migration. There is some reshaping of sediment at the top of the dunes due to winds.

The combination of stable, ancient dunes and water channels displaying both braided and cross-connecting patterns make this region a planetary analogue for Mars. Studying the physical features of an arid land, whether from orbit or ground level, can prepare humans for exploration of worlds beyond our own.
Deutsch: Rotgefärbte Sande und dunkelgrüne weitverflochtene Wasserläufe bilden einen farbigen Kontrast in Australiens Channel Country. Als die Internationale Raumstation (ISS) über das südwestliche Queensland flog, machte ein Astronaut diese Aunahme der Flutebene des Cooper Creek.

Barcoo und Thomson River fließen in südwestlicher Richtung und verbinden sich nördlich der Stadt Windorah zum Cooper Creek, einem großen Flußsystem, das sich in den Lake Yamma Yamma und Lake Eyre ergießt (beide liegen außerhalb des Bildes). Die breite, sanft geneigte Flutebene ist teilweise über 50 km breit und erlaubt so die Bilung eines komplexen Netzwerks von flachen Wasserläufen, die durch die saisonalen Hochwasser ausgespült werden. Die Region bildet ein bedeutendes Habitat für Wasservögel und wurde von der australischen Regierung als Important Bird Area ausgewiesen.

Uralte lineare Dünen erheben sich oberhalb der Flutebene. Sie streichen in Ostwestrichtung. Ihre marsähnliche Färbung resultiert aus den Spuren von Eisen, die größere Quartzkörner umhüllen. Diese sogenannten Paleodünen deuten auf ein trockeneres Klima in der Vergangenheit zum Zeitpunkt ihrer Entstehung und Wanderung hin. Als das Klima in dieser Region gerinügig feuchcter (aber immer noch arid) wurde, nahm die Vegetation zu und verringerte die Wirkung von Wind und Wasser auf die Dünen und stoppte deren Wanderung weitgehend. An der Spitzen der Dünen gibt es durch denn Wind aber immer noch Veränderungen der Ablagerungen.

Die Kombination stabiler, uralter Dünen und Wasserläufen mit sowohl verflochtenen als auch kreuzendem Muster machen die Region ein Analogum für den Mars. Mit der Erforschung der phyischen Merkmale eines trockenen Gebietes, sowohl vom Orbit als auch vom Boden aus, kann sich die Menschheit auf die Erkundung anderer Planeten vorbereiten.
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Source https://earthobservatory.nasa.gov/images/147046/cooper-creek-australia
Author Astronaut photograph ISS062-E-136862 was acquired on April 5, 2020, with a Nikon D5 digital camera using a 116 millimeter lens and is provided by the ISS Crew Earth Observations Facility and the Earth Science and Remote Sensing Unit, Johnson Space Center. The image was taken by a member of the Expedition 62 crew. The image has been cropped and enhanced to improve contrast, and lens artifacts have been removed. Caption by Andrew Britton, Jacobs, JETS Contract at NASA-JSC.
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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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current21:37, 3 September 2020Thumbnail for version as of 21:37, 3 September 20205,011 × 3,341 (5.26 MB)Matthiasb (talk | contribs){{Information |description ={{en|1=Red-tinted sands and dark green braided streams provide a colorful contrast within Australia’s [https://www.environment.nsw.gov.au/bioregions/ChannelCountry-Landform.htm Channel Country]. As the International Space Station (ISS) was passing over southwest Queensland, an astronaut took this photo of the Cooper Creek floodplain. The Barcoo and Thomson rivers flow southwest and converge north of the town of Windorah to form [http://www.bom.gov.au/qld/flood/b...

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