Image: Lake MacKay, Australia captured by Copernicus Sentinel-2B

April 21, 2017, European Space Agency
Credit: contains modified Copernicus Sentinel data (2017), processed by ESA , CC BY-SA 3.0 IGO

Brown hills speckle the eastern part of Australia's Lake MacKay in this satellite image.

Located on the border of the states of Western Australia and Northern Territory, the lake only sees water after seasonal rainfall – if at all. It is classified as an ephemeral lake, meaning it exists only after precipitation. This is not the same as a seasonal lake, which sees water for longer periods.

About half of Australia's rivers drain inland and often end in ephemeral salt lakes.

The greens and blues in this image show desert vegetation or algae, soil moisture and minerals – mainly salt. On some of the brown 'islands' and on the shore in the lower right, we can see the east–west sand ridges forming lines in the landscape.

The lies at the edge of the Great Sandy Desert, which covers nearly 285 000 sq km. Roads are scarce in the area, and often frequented by four-wheel drive adventurers. Roads include the Canning Stock Route about 300 km to the west of the image, or Tanami Track connecting Australia's Stuart Highway to the Great Northern Highway around 300 km to the east.

This image, also featured on the Earth from Space video programme, was captured by the Copernicus Sentinel-2B satellite on 15 March.

Although it is still being calibrated following the 7 March launch, the satellite's main instrument is already delivering images, demonstrating its capability to map Earth's land, coast and inland bodies. Once fully operational, the data will be made available to users for a variety of applications, free of charge.

Explore further: Image: Australian desert captured by Copernicus Sentinel 2A

Related Stories

Image: Alakol Lake

September 23, 2016

Large chunks of broken ice float in east-central Kazakhstan's Alakol Lake in this Copernicus Sentinel-2 image from 5 April 2016.

Recommended for you

Geoengineering polar glaciers to slow sea-level rise

March 19, 2018

Targeted geoengineering to preserve continental ice sheets deserves serious research and investment, argues an international team of researchers in a Comment published March 14 in the journal Nature. Without intervention, ...

Palm trees are spreading northward. How far will they go?

March 19, 2018

What does it take for palm trees, the unofficial trademark of tropical landscapes, to expand into northern parts of the world that have long been too cold for palm trees to survive? A new study, led by Lamont-Doherty Earth ...


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.