Slope Monitoring in Aram Chaos
Slope Monitoring in Aram Chaos
ESP_039655_1835  Science Theme: Mass Wasting Processes
A previous image, ESP_025954_1835 showed some striking dark downslope flows. Since this is a dark, low-dust setting, these are probably not slope streaks (which form in bright dusty areas).

This image can provide us with another look, particularly in order to detect any changes. Recurring slope lineae (RSL) are another type of dark streak seen on Martian slopes and are thought to form from flow of liquid water. Do these streaks behave like RSL? Additional images such as this one allow us to test whether these streaks grow seasonally and recur annually.

Written by: HiRISE Science Team (narration: Tre Gibbs)  (22 April 2015)
Acquisition date
11 January 2015

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
273.0 km (169.7 miles)

Original image scale range
27.4 cm/pixel (with 1 x 1 binning) so objects ~82 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
51°, with the Sun about 39° above the horizon

Solar longitude
270.1°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  329.6°
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   (521MB)

IRB color
map-projected   (292MB)

Black and white
map-projected  (245MB)
non-map           (275MB)

IRB color
map projected  (87MB)
non-map           (258MB)

Merged IRB
map projected  (104MB)

Merged RGB
map-projected  (116MB)

RGB color
non map           (217MB)
HiClip mini HD

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.