|NASA Photo ID||ISS064-E-8944|
|Time taken||20:57:39 GMT|
3530 x 2353 pixels 720 x 480 pixels 4928 x 2768 pixels 640 x 359 pixels
|Nikon D4 Electronic Still Camera|
|4928E: 4928 x 3280 pixel CMOS sensor, 36.0mm x 23.9mm, total pixels: 16.6 million, Nikon FX format|
|Additional Information||Image acquired by ISS External High Definition Camera|
|3530 pixels||2353 pixels||No||Yes||NASA's Earth Observatory web site||Download Image|
|720 pixels||480 pixels||Yes||Yes||NASA's Earth Observatory web site||Download Image|
|4928 pixels||2768 pixels||No||No||Download Image|
|640 pixels||359 pixels||No||No||Download Image|
This photo of the Sonoran Desert in Southern California was taken with a camera mounted on the outside of the International Space Station. Blocky patches of farmland are concentrated on both ends of the Salton Sea, and a short section of U.S Interstate 10—which stretches over 2,400 miles (3,800 kilometers) from California to Florida—passes through the flat areas between the mountains. An array of solar panels stands north of the interstate.
The nearby Orocopia and Chocolate Mountains are comprised of a mix of sedimentary, igneous, and metamorphic rocks along the San Andreas Fault, allowing a variety of geologic features to be studied within a short distance. The mountains were among the locations that Apollo crews visited to train for their trips to the Moon. These "outdoor classrooms" allowed the astronauts to learn the skills necessary to make scientific observations in barren and challenging landscapes. Such field work is still a part of astronaut training.
The Salton Sea, California's largest lake, started growing in 1905 after an irrigation canal broke and allowed the Colorado River to fill the basin. This lake has no natural outlet, so water must evaporate to leave the system; this makes it saltier than the ocean. Water continues to flow into the Salton Sea from agricultural runoff, but that runoff has decreased over time and does not balance out the water lost to evaporation. Because of this, the lake is expected to become saltier with time.