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Collection:
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NASA Planetary Photo Journal Collection
Collection
NASA Planetary Photo Journal Collection
Collection
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Title:
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Derived Topographic Model from Mars Global Surveyor Instruments
Title
Derived Topographic Model from Mars Global Surveyor Instruments
Title
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Original Caption Released with Image:
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A 50-cm contour map of part of Mars' south polar ice cap. The region shown is roughly a kilometer on a side. The shaded relief model is shown with a tenfold vertical exaggeration.
This high resolution Mars Global Surveyor (MGS) topographic model of the surface of Mars is created by combining Mars Orbiter Laser Altimeter (MOLA)gridded topographic data base with information from Mars Orbiter Camera(MOC) Narrow Angle (NA) high resolution images. The top image is a shaded relief model derived from the MGS MOLA gridded topography for a small part of the cap near 87°S 348°W; the area covered is about 3x3 km and the MOLA resolution about 230 meters/pixel. The bottom image is an enhanced shaded relief model of the same area derived by adding high-resolution topographic information from a MOC NA image data to the MOLA topography model. This yields a 3-D model that has a horizontal resolution of 2.75 meters; both models are shown with a 10x vertical exaggeration. Using shape-from-shading or photoclinometry techniques, MOCNA image m0906496 was used to derive high resolution (meter-scale)topogra phy. The photometric properties of the surface, including albedo variations, and scattering of the atmosphere were carefully modeled by constraining the low-frequencies of the MOC NA photoclinometry model to match the high-quality MOLA data.
Original_Caption_Rel eased_with_Image
A 50-cm contour map of part of Mars' south polar ice cap. The region shown is roughly a kilometer on a side. The shaded relief model is shown with a tenfold vertical exaggeration.
This high resolution Mars Global Surveyor (MGS) topographic model of the surface of Mars is created by combining Mars Orbiter Laser Altimeter (MOLA)gridded topographic data base with information from Mars Orbiter Camera(MOC) Narrow Angle (NA) high resolution images. The top image is a shaded relief model derived from the MGS MOLA gridded topography for a small part of the cap near 87°S 348°W; the area covered is about 3x3 km and the MOLA resolution about 230 meters/pixel. The bottom image is an enhanced shaded relief model of the same area derived by adding high-resolution topographic information from a MOC NA image data to the MOLA topography model. This yields a 3-D model that has a horizontal resolution of 2.75 meters; both models are shown with a 10x vertical exaggeration. Using shape-from-shading or photoclinometry techniques, MOCNA image m0906496 was used to derive high resolution (meter-scale)topogra phy. The photometric properties of the surface, including albedo variations, and scattering of the atmosphere were carefully modeled by constraining the low-frequencies of the MOC NA photoclinometry model to match the high-quality MOLA data.
Original Caption Released with Image
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Image Credit:
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NASA/JPL/USGS/MSSS
Image_Credit
NASA/JPL/USGS/MSSS
Image Credit
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Produced By:
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U.S. Geological Survey
Produced_By
U.S. Geological Survey
Produced By
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Mission:
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Mars Global Surveyor (MGS)
Mission
Mars Global Surveyor (MGS)
Mission
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Spacecraft:
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Mars Global Surveyor Orbiter
Spacecraft
Mars Global Surveyor Orbiter
Spacecraft
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Target Name:
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Mars
Target_Name
Mars
Target Name
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Is a satellite of:
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Sol (our sun)
Is_a_satellite_of
Sol (our sun)
Is a satellite of
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Instrument:
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Mars Orbiter Camera
Instrument
Mars Orbiter Camera
Instrument
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Instrument:
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MOLA
Instrument
MOLA
Instrument
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Product Size:
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879 samples x 585 lines
Product_Size
879 samples x 585 lines
Product Size
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facet_what:
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Sun
facet_what
Sun
facet_what
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facet_what:
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Polar
facet_what
Polar
facet_what
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facet_what:
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Mars
facet_what
Mars
facet_what
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facet_what:
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Altimeter
facet_what
Altimeter
facet_what
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facet_what:
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Surveyor
facet_what
Surveyor
facet_what
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facet_what:
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CONTOUR
facet_what
CONTOUR
facet_what
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facet_what:
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Mars Global Surveyor (MGS)
facet_what
Mars Global Surveyor (MGS)
facet_what
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facet_what:
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Mars Global Surveyor Orbiter (MGS)
facet_what
Mars Global Surveyor Orbiter (MGS)
facet_what
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facet_what:
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Mars Orbiter Camera (MOC)
facet_what
Mars Orbiter Camera (MOC)
facet_what
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facet_what:
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Mars Orbiter Laser Altimeter (MOLA)
facet_what
Mars Orbiter Laser Altimeter (MOLA)
facet_what
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facet_where:
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Mars
facet_where
Mars
facet_where
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facet_where:
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Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
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facet_where:
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Goddard Space Flight Center (GSFC)
facet_where
Goddard Space Flight Center (GSFC)
facet_where
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Image #:
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PIA03874
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UID:
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SPD-PHOTJ-PIA03874
UID
SPD-PHOTJ-PIA03874
UID
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orignial url:
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orignial_url
orignial url
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