Astronaut photograph ISS069-E-442 was gotten on April 1, 2023, with a Nikon D5 digital cam utilizing a focal length of 50 millimeters. It is supplied by the ISS Crew Earth Observations Facility and the Earth Science and Remote Sensing Unit, Johnson Space. The image was taken by a member of the Expedition 69 crew. The image has been cropped and enhanced to improve contrast, and lens artifacts have actually been gotten rid of. The International Space Station Program supports the laboratory as part of the ISS National Lab to help astronauts take photos of Earth that will be of the best value to scientists and the general public, and to make those images easily readily available on the Internet. Caption by Minna Adel Rubio, GeoControl Systems, JETS Contract at NASA-JSC.
An astronaut aboard the International Space Station recorded this photograph of a short 30-kilometer-long (20-mile-long) sector of Lake Nasser– one of the worlds largest synthetic lakes. The color distinction in between the west and east banks is triggered by tan sand from sources to the west covering the underlying rock on that bank. In contrast, the eastern bank is defined by exposed rock surface areas with little to no sand coverage.
The stark color contrasts on the east and west banks of the Egyptian Lake Nasser are because of the differing amounts of sand protection, with more sand leading to lighter colors and less sand exposing darker soil.
Differences in the amount of sand cover describe the starkly contrasting colors of the Egyptian lakes west and east banks.
An astronaut aboard the International Space Station recorded this photo of a brief 30-kilometer-long (20-mile-long) sector of Lake Nasser– one of the worlds largest synthetic lakes. The nearly 500-kilometer-long (300-mile-long) tank formed after the Aswan High Dam was developed across the Nile River in Aswan, Egypt. The northern two-thirds of the lake in Egypt is called after the nations previous president, Gamal Abdel Nasser, who is mostly accountable for initiating the dams building. The Sudanese portion is likewise referred to as Lake Nubia.
One significant feature in this image is the landscape dichotomy on either side of the lake. The geology in this location is defined by medium to coarse-grained sandstone. The color distinction between the west and east banks is caused by tan sand from sources to the west covering the underlying rock on that bank. On the other hand, the eastern bank is characterized by exposed rock surfaces with little to no sand protection. Since wind transport is insufficient to transfer sand throughout the Nile Valley, this is.
By NASA Earth Observatory
July 17, 2023