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6 Cards in this Set
- Front
- Back
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SPOT 1,2,3 |
2 VHR sensors: VHR contains three spectral bands/multispectral (Green, Red, Near-IR) at a 20 m spatial resolution and a panchromatic band at a 10 m spatial resolution. |
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Payload: types of sensors (5) for SPOT 1-3, 4 and 5 |
SPOT 1-3: VHR SPOT 4: HRVIR & VEGETATION SPOT 5: HRG (high ver of HRVIR), HRS |
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Comparison with TM Improvements of SPOT over TM (4) |
1. Higher spatial resolution 2. Higher geometric fidelity 3. Capability of recording data at off-nadir position 4. ability to obtain 3D viewing |
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Advantages of TM imagery (2) |
high spectral res broader ground coverage |
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analysis: how? which elements are more important |
similar to aerial photographs tone/colour, texture and pattern more revealing than size (smaller than on photos, hard to tell for indiv objects), shadow, shape, location |
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background info more or less important role in interpreting satellite iamgery
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MORE important.. especially small-scale ones |
