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Portland. Correct lighting, x2 vertical exaggeration
These scenes show Portland, Oregon and the countryside around it as seen by the Landsat Thematic Mapper (TM) instrument. Portland sits on the Willamette River south of its confluence with the Columbia River. The city sits very close to several mountains in the Cascade Range, including Mt. Hood, Mt. Adams, and Mt. St. Helens. The terrain of the area is also shown exaggerated by a factor of two to emphasis terrain features such as the mountains and the Columbia Gorge just north of Mt. Hood and south of Mt. Adams.

The shortwave infrared (TM band 5), infrared (TM band 4), and visible green (TM band 2) channels are displayed in the images as red, green, and blue respectively. In this combination, barren and/or recently cultivated land appears red to pink, vegetation appears green, water is dark blue, and artificial structures of concrete and asphalt appear dark gray or black. The natural color images combine TM bands 3, 2, and 1 and map them to red, green, and blue, respectively.


A flyby of the Portland region, using Landsat data from May 6, 1992, draped over elevation data. Vertical heights are exaggerated by a factor of 2.    A flyby of the Portland region, using Landsat data from May 6, 1992, draped over elevation data. Vertical heights are exaggerated by a factor of 2.
Duration: 1.2 minutes
Available formats:
  352x240 (29.97 fps) MPEG-1   10 MB
  320x242     JPEG         13 KB
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Mt. Adams (TM 542) (May 6, 1992)    Mt. Adams (TM 542) (May 6, 1992)

Available formats:
  2560 x 1920     TIFF 11 MB
  320 x 240         JPEG     17 KB
  160 x 80           PNG       26 KB


Mt. Adams (Natural Color) (May 6, 1992)    Mt. Adams (Natural Color) (May 6, 1992)

Available formats:
  2560 x 1920     TIFF 8 MB
  320 x 240         JPEG     16 KB


Mt. Hood (TM 542) (May 6, 1992)    Mt. Hood (TM 542) (May 6, 1992)

Available formats:
  2560 x 1920     TIFF 11 MB
  320 x 240         JPEG     17 KB


Mt. Hood (Natural Color) (May 6, 1992)    Mt. Hood (Natural Color) (May 6, 1992)

Available formats:
  2560 x 1920     TIFF 8 MB
  320 x 240         JPEG     15 KB


Portland, OR (TM 542) (May 6, 1992)    Portland, OR (TM 542) (May 6, 1992)

Available formats:
  2560 x 1920     TIFF 12 MB
  320 x 240         JPEG     20 KB


Portland, OR (Natural Color) (May 6, 1992)    Portland, OR (Natural Color) (May 6, 1992)

Available formats:
  2560 x 1920     TIFF 10 MB
  320 x 240         JPEG     20 KB
  80 x 40             PNG         7 KB
  160 x 80           PNG       28 KB


Portland, OR (Natural Color) (May 6, 1992)    Portland, OR (Natural Color) (May 6, 1992)

Available formats:
  2560 x 1920     TIFF 4 MB
  320 x 240         JPEG     13 KB


Portland, OR (Natural Color) (May 6, 1992)    Portland, OR (Natural Color) (May 6, 1992)

Available formats:
  2560 x 1920     TIFF 4 MB
  320 x 240         JPEG     10 KB


Portland, OR (Natural Color) (May 6, 1992)    Portland, OR (Natural Color) (May 6, 1992)

Available formats:
  2560 x 1920     TIFF 4 MB
  320 x 240         JPEG     11 KB

Animation Number:1350
Completed:1999-04-09
Animator:Jesse Allen (Raytheon) (Lead)
Scientist:Darrel Williams (NASA/GSFC)
Platforms/Sensors/Data Sets:Landsat-5/TM (1992/05/06)
 DTED Level 1 (3 arc second)
Series:USCities
Video:SVS1999-1003 *
Keywords:
DLESE >> Human geography
SVS >> Mt. Hood
DLESE >> Physical geography
SVS >> Portland
More Information on this topic available at:
stories/Landsat_USCities/index.html
 
 
Please give credit for this item to:
NASA/Goddard Space Flight Center
Scientific Visualization Studio


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