More Emmentaler
More Emmentaler
ESP_021725_0930  Science Theme: Climate Change
HiRISE has taken a number of images of this type of terrain in the South polar region. It is called jokingly, "Swiss Cheese" because the structure looks a little like Emmentaler cheese — a cheese from near the Emme Valley (Emmental) in the Swiss canton of Berne.

This image shows clearly the multiple steps one frequently sees in the walls of the Swiss cheese formation. This is probably an indication of episodic sublimation of carbon dioxide and water ice in the substrate.

Written by: Nicolas Thomas  (13 April 2011)
Acquisition date
16 March 2011

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
246.0 km (152.9 miles)

Original image scale range
49.2 cm/pixel (with 2 x 2 binning) so objects ~148 cm across are resolved

Map projected scale
50 cm/pixel

Map projection

Emission angle

Phase angle

Solar incidence angle
66°, with the Sun about 24° above the horizon

Solar longitude
255.4°, Northern Autumn

For non-map projected images
North azimuth:  147°
Sub-solar azimuth:  42.7°
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

Black and white
map-projected   (88MB)

IRB color
map-projected   (51MB)

Black and white
map-projected  (41MB)
non-map           (44MB)

IRB color
map projected  (16MB)
non-map           (58MB)

Merged IRB
map projected  (77MB)

Merged RGB
map-projected  (68MB)

RGB color
non map           (47MB)
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products

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

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/University of Arizona

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.