Devon Island #2849

#2849 Devon Island by JVPD
Devon Island is situated in an isolated part of Canada's Nunavut Territory, and is usually considered to be the largest uninhabited island in the world. However, each summer since 1999, researchers from NASA's Haughton-Mars Project and the Mars Society reside at this "polar desert" location to study the geologic and environmental characteristics of a site which is considered to be an excellent "Mars analog": a terrestrial location wherein specific conditions approximate environmental features reported on Mars. Base camps established amidst the rocks and rubble surrounding the Haughton impact crater enable researchers to conduct surveys designed to test the habitat, equipment and technology that may be deployed during a human mission to Mars. One of the many objectives of the project scientists is to understand the ice formations around the Haughton area, in the hopes that this might ultimately assist with the recognition of areas where ice can be found at shallow depth on Mars. These images of Devon Island from NASA's Multi-angle Imaging SpectroRadiometer (MISR) instrument provide contrasting views of the spectral and angular reflectance "signatures" of different surfaces within the region. The top panel is a natural color view created with data from the red, green and blue-bands of MISR's nadir (vertical-viewing) camera. The bottom panel is a false-color multiangular composite of the same area, utilizing red band data from MISR's 60-degree backward, nadir, and 60-degree forward-viewing cameras, displayed as red, green and blue, respectively. In this representation, colors highlight textural properties of elements within the scene, with blue tones indicating smooth surfaces (which preferentially forward scatter sunlight) and red hues indicating rougher surfaces (which preferentially backscatter). The angular reflectance "signature" of low clouds causes them to appear purple, and this visualization provides a unique way of distinguishing clouds from snow and ice.

Photo Credit: NASA/GSFC/LaRC/JPL, MISR Team [0003-0701-0121-3802] by 0003

Similar Images:

#3573 Great Wall of China From Space by JVPD
#19245 Photo of the Artificial Palm Island, Palm Jumeirah, on the Persian Gulf in Dubai by JVPD
#3253 Lost Hills by JVPD
#25455 Stock Photo of a Vetical Cropped Image of the State of Florida as Seen From Space by JVPD
#2898 Pulau Kimaam, West Papua by JVPD
#26949 Stock Photography of a Map of the Contiguous United States of America and the Great Lakes by JVPD
#35500 Geography Stock Photo Of The Strait Of Magellan, Chile As Seen From Space by JVPD
#2882 Bosporus Strait and Istanbul, Turkey by JVPD
#2685 Picture of World Globes - Three Views of Earth by JVPD
#3323 Liquefaction Effects, Bhuj Earthquake by JVPD
#3298 Mexicali, Calexico by JVPD
#3619 Cape Cod From Space by JVPD
#3239 Republic of Fiji by JVPD
#3343 Cape Cod From Space by JVPD
#3626 Boston From Space by JVPD
More Geography Photos


canada, devon island, geography, haughton impact crater, island, islands, jones sound, jpl, mars analog, nasa, nunavut territory, parry channel, polar desert, wellington channel