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Northern Plains in Color

Tuesday 30 August 2011

Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington


Instrument: Mercury Dual Imaging System – Wide Angle Camera.

The top image shows an example of MESSENGER’s color base map imaging campaign, which will collect global images acquired through eight filters between wavelengths of 430 and 1000 nm at an average resolution of 1.2 km/pixel. The northern plains are seen here to be distinctive in color and thus composition from the surrounding terrain. The mosaicked images are shown with the 1000, 750, and 430 nm images in red, green, and blue, respectively. The scene is centered at 73° N, 300° E.

In the bottom image, the same scene is shown after the application of a statistical method that highlights differences among the eight color filters, making variations in color and composition easier to discern.

Université Paris-Sud 11 Faculté des Sciences GEOPS CNRS
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