File:Meanderingridgeswide ESP 079382 1735 01.jpg

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Description	English: These ridges were once streams that became inverted over time. NASA has this to say about the image: Multiple processes, which may have occurred billions of years apart, are reflected in this HiRISE image of Aeolis Planum. Cutting across the scene are curvilinear ridges. These likely represent ancient, meandering river channels that flowed across the surface and buried themselves over time. The channels have subsequently been exposed to the surface by the wind, forming the cross-cutting ridges. Approximately north-south across the image are a series of linear ridges called “yardangs,” which are streamlined landforms that also form due to wind-driven erosion. The orientation of the yardangs reflects the prevailing wind direction when they formed. Both sets of ridges emerged from the preferential removal of softer bedrock by the wind. Written by: Joel Davis (13 December 2023)
Date	Multiple processes, which may have occurred billions of years apart, are reflected in this HiRISE image of Aeolis Planum. Cutting across the scene are curvilinear ridges. These likely represent ancient, meandering river channels that flowed across the surface and buried themselves over time. The channels have subsequently been exposed to the surface by the wind, forming the cross-cutting ridges. Approximately north-south across the image are a series of linear ridges called “yardangs,” which are streamlined landforms that also form due to wind-driven erosion. The orientation of the yardangs reflects the prevailing wind direction when they formed. Both sets of ridges emerged from the preferential removal of softer bedrock by the wind. Written by: Joel Davis (13 December 2023)
Source	https://www.uahirise.org/ESP_079382_1735
Author	Jim Secosky selected pictures from NASA files. This image was named HiRISE picture of the day for December 13, 2023. The credit should read NASA/JPL-Caltech/UArizona.

File:Meanderingridgeswide ESP 079382 1735 01.jpg

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public domain

media type

image/jpeg

checksum

f71851cc3aa501c9d395efe88dc737c23bb62e81

data size

3,357,680 byte

height

6,230 pixel

width

2,048 pixel

coordinates of the point of view

6°15'39.600"S, 151°15'25.200"E

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