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TERRA satellite. Orbits T=100 minutes Inclination Repeat time/track separation Off nadir allowed? Swath width Ascending/Descending, day/night Stereo.

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Presentation on theme: "TERRA satellite. Orbits T=100 minutes Inclination Repeat time/track separation Off nadir allowed? Swath width Ascending/Descending, day/night Stereo."— Presentation transcript:

1 TERRA satellite

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3 Orbits T=100 minutes Inclination Repeat time/track separation Off nadir allowed? Swath width Ascending/Descending, day/night Stereo possible?

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6 Satellite Resolution Spatial Spectral Radiometric Temporal

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8 Windows and absorption bands—who absorbs where

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12 Whether noise is a nuisance or a signal may depend on whom you ask. Physics Today, May 2003

13 S/N ratio Pixel size Part of spectrum Bandwidth Active/Passive

14 Energy at Satellite Reflected Emitted

15 Revisit Times ASTER: 4 to 16 days (only on Terra) MODIS: 2 days (Terra and Aqua)

16 MODIS

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20 ASTER, CERES, MISR, MODIS,MOPITT

21 Figure 1: The demise of Landsat 7. Partial image of Railroad Valley, NV (Path 40, Row 33) showing pre-anomaly (top), post-anomaly without interpolation (middle), and post-anomaly with interpolation (bottom).

22 SLAR—side looking airborne radar Same principals as side scan sonar

23 Contrast 0-255 gray scale possible ~30 we can differentiate Use them most effectively

24 IR “Best” How show?

25 Color--Grayscale Normally amount of energy returned Exceptions –Thermal of clouds (weather satellites) –Side scan sonar imagery (history & technology)


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