PPT《Remote SensingWhat can we do with it?》

Remote SensingWhat can we do with it? The early years Yellowstone Fires 1988, Recorded 7/2001 How it works Incoming solar energy Reflecting surfacesScatter, absorb,and reflect light Electromagnetic Energyand surface reflectance Spectral Reflectance Progression of common satellitesMSS spatial scale 20m, TM 30m Satellite Sensors SatelliteSpatial Resolution Spectral ResolutionQuickBird1-4meters.

45-.90?mIkonos1&21-4meters.45-.90?mSPOTHR-XS10-20meters.51-1.75?mLANDSAT TM 7(1)15m.45-.515?m(2,3,4,5,7) 30m.525C2.35?m(6)60m2.09-2.35?mAVRIS20m224 bands Sun Synchronous Orbital Flight Row and Path TM

30 meter multi-spectral imagery Keweenaw Peninsula, bands 2,

3 and

4 provide a color composite Summer AVHRR Composite Spatial Scale 1km New Technologies AVRIS Spectra AVRIS Hyperspectral Cube Airborne Visible/Infrared Imaging Spectrometer

224 spectral channels

400 C

2500 nm spectral resolution,

20 meter ground resolution. Brine Shrimp pond LidarLight Detection and Ranging Visible portion of spectrumExcellent opportunities for vertical dimensions not for horizontal Data from Lefsky et al