Salt lakes of assorted sizes occur throughout southwestern Australia, and one of the larger ones is Lake Dundas. Located about 130 kilometers (80 miles) inland from the coastal city of Esperance, Lake Dundas occupies a region of low rainfall and abundant sunshine. This salt-encrusted lake presents a complex face to satellite sensors, with plentiful islands poking above the water line.
The Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite captured this natural-color image on November 30, 2011. Note that the image has been rotated so that north is to the right.
Southwest of the lake (image upper left) are agricultural fields, identifiable by their neat, straight borders. The contour of the lake, in contrast, is wildly uneven, with long stretches of dry land poking into the lake from the east and west. Dry, arid climates are the norm in many parts of Australia, and sparse rainfall leaves this lake shallow and salty, especially in the summertime.
NASA Earth Observatory image created by Jesse Allen and Robert Simmon, using EO-1 ALI data provided courtesy of the NASA EO-1 team. Caption by Michon Scott
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