File:ISS-30 Lake Eyre - South Australia.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file ‎(2,848 × 4,288 pixels, file size: 1.19 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary[edit]

Description
English: Lake Eyre floods in South Australia are featured in this image photographed by an Expedition 30 crew member on the International Space Station.
  • Heavy rain in early March 2011 produced the comparatively unusual event of water entering Lake Eyre. The southernmost and deepest lobes, Belt Bay and Lake Eyre South, were filled first. In this northeast-looking view from the space station, water can be seen in the southern basins of Lake Eyre, especially in Belt Bay where it appears green, and in Madigan Gulf where it appears in shades of pink and red. Despite some cloud, water is also apparent in narrow Jackboot Bay and at the estuary where Cooper Creek, one of the most important inflow rivers, fills a small, dark green lake.
  • The varying water colors result from the effects of water depth and resident organisms. The green coloration of Belt Bay is likely related to its depth, which was reported in early December 2011 to be just less than one meter. The red color of Madigan Bay on the other hand, appears to be related to salt-loving bacteria. At half the depth of Belt Bay (0.4 meters), evaporation had apparently raised salt concentrations high enough to allow salt-loving bacteria to flourish when this image was taken.
  • In Australian lake waters with salinities from about 30 percent upwards the majority of microbes are haloarchaea. The density of microbes that live in Australia's salt lakes can reach 10⁷ – 10⁸ cells/milliliters–so dense in fact, that the pink-red carotenoid pigments in the cell membranes appear to color the water. By August 2011 more than half the lake floor was covered by shallow water, with local creeks continuing to deliver water to the lake.
  • Lake Eyre is an internal drainage basin, which means that all the water accumulates in the lake since it has no outlet to the sea. Any water that reaches the lake evaporates in the course of subsequent months. Water levels were reported to be falling everywhere in late 2011, when this image was acquired. The bright white salt of the floor of Lake Eyre South shows that this lake is entirely dry.
Date
Source http://spaceflight.nasa.gov/gallery/images/station/crew-30/html/iss030e009271.html
Author NASA
This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ISS030-E-009271.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.
Other languages:

العربية ∙ беларуская (тарашкевіца) ∙ български ∙ català ∙ čeština ∙ dansk ∙ Deutsch ∙ English ∙ español ∙ فارسی ∙ français ∙ galego ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ македонски ∙ മലയാളം ∙ Nederlands ∙ polski ∙ português ∙ русский ∙ sicilianu ∙ slovenščina ∙ Türkçe ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/−

Licensing[edit]

Public domain
This file is in the public domain in the United States because it was created by the Image Science & Analysis Laboratory, of the NASA Johnson Space Center. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA media use guidelines or Conditions of Use of Astronaut Photographs). Photo source: ISS030-E-009271.

العربيَّة | Deutsch | English | español | français | italiano | kurdî | македонски | മലയാളം | português | sicilianu | +/−

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current02:06, 4 February 2012Thumbnail for version as of 02:06, 4 February 20122,848 × 4,288 (1.19 MB)Ras67 (talk | contribs){{Information |Description ={{en|1=Lake Eyre floods in South Australia are featured in this image photographed by an Expedition 30 crew member on the International Space Station. Heavy rain in early March 2011 produced the comparatively unusual event o

You cannot overwrite this file.

The following page uses this file:

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:ISS-30_Lake_Eyre_-_South_Australia.jpg&oldid=718868178"