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<INPUT TYPE="HIDDEN" NAME="title" VALUE="Color Image of Death Valley, California from SIR-C">
<INPUT NAME="PIA01349" TYPE="IMAGE" SRC="/catalog/PIA01349.jpg"> 
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<TD ALIGN="RIGHT">Image Title:</TD> <TD ALIGN="LEFT"><STRONG>Color Image of Death Valley, California from SIR-C</STRONG></TD></TR>
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<TD ALIGN="RIGHT">Catalog #:</TD> <TD ALIGN="LEFT"><STRONG>PIA01349</STRONG></TD></TR>
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<TD ALIGN="RIGHT">Target Name:</TD> <TD ALIGN="LEFT"><STRONG> <A HREF="http://sse.jpl.nasa.gov/features/planets/earth/earth.html"> Earth </A></STRONG></TD></TR>
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<TD ALIGN="RIGHT">Is a satellite of:</TD> <TD ALIGN="LEFT"><STRONG>Sol (our Sun)</STRONG></TD></TR>
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<TD ALIGN="RIGHT">Mission:</TD> <TD ALIGN="LEFT"><STRONG> Spaceborne Imaging Radar C X Band Synthetic Aperture Radar</STRONG></TD></TR>
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<TD ALIGN="RIGHT">Spacecraft/Mission:</TD> <TD ALIGN="LEFT"><STRONG> Space Shuttle</STRONG></TD></TR>
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<TD ALIGN="RIGHT">Instrument:</TD> <TD ALIGN="LEFT"><STRONG> <A HREF="http://southport.jpl.nasa.gov"> L-Band Imaging Radar </A></STRONG></TD></TR>
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<TD ALIGN="RIGHT">Product Size:</TD> <TD ALIGN="LEFT"><STRONG>1200 samples x 2501 lines</STRONG></TD></TR>
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<TD ALIGN="RIGHT">Produced By:</TD> <TD ALIGN="LEFT"><STRONG> <A HREF="http://www.jpl.nasa.gov"> JPL </A></STRONG></TD></TR>
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<TD ALIGN="RIGHT">Primary Data Set:</TD> <TD ALIGN="LEFT"><STRONG> Sirc_page</STRONG></TD></TR>
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<TD ALIGN="RIGHT">Full-Res TIFF:</TD> <TD ALIGN="LEFT"><STRONG><A HREF="/tiff/PIA01349.tif">PIA01349.tif (9 Mbytes)</A></STRONG></TD></TR>
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<DL>
<DT> <B>Original Caption Released with Image: </B>
<DD> This radar image shows the area of Death Valley, California and the different surface types
in the area. Radar is sensitive to surface roughness with rough areas showing up brighter
than smooth areas, which appear dark. This is seen in the contrast between the bright
mountains that surround the dark, smooth basins and valleys of Death Valley. The image
shows Furnace Creek alluvial fan (green crescent feature) at the far right, and the sand
dunes near Stove Pipe Wells at the center. Alluvial fans are gravel deposits that wash down
from the mountains over time. Several other alluvial fans (semicircular features) can be
seen along the moutain fronts in this image. The dark wrench-shaped feature between
Furnace Creek fan and the dunes is a smooth flood-plain which encloses Cottonball Basin.
Elevations in the valley range from 70 meters (230 feet) below sea level, the lowest in the
United States, to more than 3,300 meters (10,800 feet) above sea level. Scientists are using
these radar data to help answer a number of different questions about Earth's geology
including how alluvial fans form and change through time in response to climatic changes
and earthquakes. The image is centered at 36.629 degrees north latitude, 117.069 degrees
west longitude. Colors in the image represent different radar channels as follows: red =
L-band horizontally polarized transmitted, horizontally polarized received (LHH); green =
L-band horizontally transmitted, vertically received (LHV) and blue = CHV. 
<P>
SIR-C/X-SAR is part of NASA's Mission to Planet Earth. The radars illuminate Earth
with microwaves allowing detailed observations at any time, regardless of weather or
sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm),
C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the
international scientific community to better understand the global environment and how it
is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will
give scientists clearer insights into those environmental changes which are caused by
nature and those changes which are induced by human activity. SIR-C was developed by
NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia
Spazio companies for the German space agency, Deutsche Agentur fuer
Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale
Italiana (ASI).<BR></DL>
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