Term
Red wavelength & Benefits |
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Definition
650 nm (Band 3 on TM) Vegetation discrimination Soil and geological boundaries More contrast than G & B due to less effect from atmosh, attenutation |
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Green Wavelength & Benefits |
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Definition
510 nm (Band 2 on TM) Reacts to Green relectance of Healthy vegetation |
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Blue Wavelength & Benefits |
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Definition
475 nm (Band 1 on TM) Penetration of waterbodies Analysis of land-use, soil, and vegetation Atmoshperic Scattering < 450 nm |
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Term
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Definition
Cost: Free 36 bands Red/NIR bands 250m res Other bands 500 m res 1-2 day temporal Only Available after 2000 10 km Swath |
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Definition
Cost: $500 or cheaper R, G, B, NIR, 2x MidIR, Thermal IR 30 m Res, 120m for Thermal 15 m for Pan 16 day temporal |
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NIR wavelength & Benefits |
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Definition
760-900 nm (band 4 on TM) Responsive to Biomass, crop ID, and emphasizes soil/crop and land/water contrasts |
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Mid-IR wavelength & Benefits |
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Definition
1550-1750 nm (band 5 on TM) Resonsive to amt of water in plants Discriminates cloud, snow, ice 2080-2350 nm Discriminates geologic formations (ie, hydrothermal) |
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Thermal IR wavelength and Benefits |
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Definition
10.4-12.5 microns (band 6 on TM) measures amt of radiant energy emitted from surfaces Useful for geothermal, thermal inertia, vegetation classification, veg. stress, & soil moisture |
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Term
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Definition
Cost: $50-80 Bands 1-4 15 m Bands 5-10 30m Bands 11-15 90 m Available after 2000 60 km Swath |
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Definition
MODIS - FREE ASTER - $50-80 AVHRR - FREE Landsat - $500 w/ discounts |
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Expesnive Satelittes ($3k-5k) |
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Definition
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Definition
Bands: Green, Red, 2x NIR Temporal: 16-18 days Spatial: 79 m |
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Definition
Since Sept 1999 .82 m Pan 3.2 m Multi Rgb, NIR 11km x 11km Swath Temporal: 3-5 day off nadir; 144 day nadir |
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Term
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Definition
Swath: 16.5 km x 16.5 km Bands: Pan, R, G, B, NIR Res: 2.44 MS, 61cm Pan Temproal 1-3.5 days |
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