Spring in Inca City III
NASA/JPL/University of Arizona
Spring in Inca City III
ESP_037877_0985  Science Theme: 

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In Inca City another week has passed, and there are a few more fans on the ridge. We are studying the sequence of spring activity with the help of citizen scientists at the Planetfour website, sponsored by Zooniverse.

Citizens of planet Earth log on and identify and measure fans and blotches in the South polar region of Mars imaged by HiRISE. With their help we can study the polar weather by looking at how the fan directions change through the spring.

We see how the number of fans and blotches depends on the thickness of the ice layer and how high the sun is in the sky. If you would like to be a part of this endeavor join us at www.planetfour.org.

Written by: Candy Hansen   (13 November 2014)

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Acquisition date
25 August 2014

Local Mars time:
17:11

Latitude (centered)
-81.378°

Longitude (East)
295.743°

Range to target site
248.2 km (155.1 miles)

Original image scale range
49.7 cm/pixel (with 2 x 2 binning) so objects ~149 cm across are resolved

Map projected scale
50 cm/pixel

Map projection
Polarstereographic

Emission angle:
6.0°

Phase angle:
81.3°

Solar incidence angle
86°, with the Sun about 4° above the horizon

Solar longitude
184.7°, Northern Autumn

North azimuth:
111°

Sub-solar azimuth:
33.0°
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   (281MB)

IRB color
map-projected   (175MB)

JP2 EXTRAS
Black and white
map-projected  (119MB)
non-map           (186MB)

IRB color
map projected  (48MB)
non-map           (162MB)

Merged IRB
map projected  (270MB)

Merged RGB
map-projected  (260MB)

RGB color
non map           (170MB)
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
For information about NASA and agency programs on the Web, visit: http://www.nasa.gov. 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. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona. The image data were processed using the U.S. Geological Survey’s ISIS3 software.