HiRISE | Spring on Southern Sand Dunes (ESP_079809

NASA/JPL-Caltech/UArizona

Spring on Southern Sand Dunes
ESP_079809_1325 Science Theme:

When we took this image, spring was slowly returning to the Southern Hemisphere. These sand dunes, within Kaiser Crater, are partially covered with carbon dioxide ice. Numerous channels going down the face of the dune are caused by blocks of ice sliding down the slope.

The alcoves of the channels on the right have blocks of ice waiting to be released by the warming sun. In the channels bright spots mark what we think are blocks already sliding down.

Written by: Candy Hansen (20 October 2023)

Acquisition date
06 August 2023

Local Mars time
15:41

Latitude (centered)
-47.222°

Longitude (East)
19.477°

Spacecraft altitude
252.2 km (156.7 miles)

Original image scale range
50.7 cm/pixel (with 2 x 2 binning) so objects ~152 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
6.4°

Phase angle
92.0°

Solar incidence angle
88°, with the Sun about 2° above the horizon

Solar longitude
100.7°, Northern Summer

For non-map projected images
North azimuth: 96°
Sub-solar azimuth: 47.8°

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   (142MB)

IRB color
map-projected   (55MB)

JP2 EXTRAS
Black and white
map-projected (62MB)
non-map           (131MB)

IRB color
map projected (14MB)
non-map           (46MB)

Merged IRB
map projected (126MB)

Merged RGB
map-projected (121MB)

RGB color
non map           (42MB)

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.