HiRISE | A View of Polar Dunes (ESP_080623

NASA/JPL-Caltech/UArizona

A View of Polar Dunes
ESP_080623_2590 Science Theme: Polar Geology

This image was acquired to study interactions between active sand dunes and polar ice. As the dunes migrate (towards the lower right of the full image), they leave behind bright regions where dust has been removed from the polar ice. Bits of very bright seasonal frost are present on the sides of the dunes.

Written by: Alfred McEwen (16 November 2023)

This is a stereo pair with ESP_080175_2590.

Acquisition date
08 October 2023

Local Mars time
14:01

Latitude (centered)
79.032°

Longitude (East)
82.028°

Spacecraft altitude
317.1 km (197.1 miles)

Original image scale range
34.0 cm/pixel (with 1 x 1 binning) so objects ~102 cm across are resolved

Map projected scale
25 cm/pixel

Map projection
Polarstereographic

Emission angle
22.2°

Phase angle
81.2°

Solar incidence angle
62°, with the Sun about 28° above the horizon

Solar longitude
130.1°, Northern Summer

For non-map projected images
North azimuth: 115°
Sub-solar azimuth: 326.0°

JPEG
Black and white
map projected  non-map

IRB color
map projected  non-map

Merged IRB
map projected

Merged RGB
map projected

RGB color
non-map projected

JP2
Black and white
map-projected   (538MB)

IRB color
map-projected   (231MB)

JP2 EXTRAS
Black and white
map-projected (233MB)
non-map           (324MB)

IRB color
map projected (85MB)
non-map           (124MB)

Merged IRB
map projected (152MB)

Merged RGB
map-projected (147MB)

RGB color
non map           (118MB)

ANAGLYPHS
Map-projected, reduced-resolution
Full resolution JP2 download
Anaglyph details page

ADDITIONAL INFORMATION
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products
HiView

NB
IRB: infrared-red-blue
RGB: red-green-blue
About color products (PDF)

Black & white is 5 km across; enhanced color about 1 km
For scale, use JPEG/JP2 black & white map-projected images

USAGE POLICY
All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL-Caltech/UArizona

POSTSCRIPT
NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA’s Science Mission Directorate, Washington. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.