Seasonal Flows on Warm Slopes
NASA/JPL/University of Arizona
Seasonal Flows on Warm Slopes
ESP_049032_1670  Science Theme: Mass Wasting Processes


HICLIP

1080p (MP4)
720p (MP4)
Listen to the text

WALLPAPER

800  1024
1152  1280
1440  1600
1920  2048
2560  2880
2736  4500
4K  8K

HIFLYER

PDF, 11 x 17 in

HISLIDES

PowerPoint
Keynote
PDF
Recurring Slope Lineae (called “RSL”) are seasonally-repeating dark flows that are active at the warmest times of the year. Some of these grow from the top of the steep slope downwards as expected for liquid or granular flows.

Others show different darkening patterns, which suggests different processes. Although HiRISE has acquired many images to monitor RSL sites, it still is not certain how these features form.

Written by: Alfred McEwen (audio: Tre Gibbs)  (9 March 2017)
twitter  •  facebook  •  google+  •  tumblr
 
Acquisition date
11 January 2017

Local Mars time:
14:13

Latitude (centered)
-13.081°

Longitude (East)
294.409°

Range to target site
258.3 km (161.4 miles)

Original image scale range
from 25.8 cm/pixel (with 1 x 1 binning) to 51.7 cm/pixel (with 2 x 2 binning)

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle:
4.2°

Phase angle:
37.0°

Solar incidence angle
33°, with the Sun about 57° above the horizon

Solar longitude
297.0°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  344.3°
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   (526MB)

IRB color
map-projected   (387MB)

JP2 EXTRAS
Black and white
map-projected  (237MB)
non-map           (205MB)

IRB color
map projected  (118MB)
non-map           (336MB)

Merged IRB
map projected  (153MB)

Merged RGB
map-projected  (145MB)

RGB color
non map           (321MB)
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/University of Arizona

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.