2. Hyperspectral remote sensing ('Image spectroscopy')
multispectral systems contain ~5-10 bands ( nm wide = μm)
e.g. Landsat TM (below)
Hyperspectral consists of channels from μm (5-10nm each)
Bands are contiguous and high spectral resolution

3. Some airborne hyperspectral systems
Sensor     Wavelength (nm)     Band width (nm)     # bands
AVIRIS                 
TRWIS III              
HYDICE               
CASI  (1500)             
OKSI AVS               
ESSI Probe

4. Quantifying structural physical habitat attributes using LIDAR and hyperspectral imagery
<- LiDAR DEM
IR image and 10 class -> ISODATA classification

6. Spectral signatures: Landsat TM v hyperspectral

7. http://www. murraystate

8. CASI (Compact Airborne Spectrographic Imager) - ITRES, Calgary –  
1989 CASI m pixels, 12 bit data (0-4095)
2002 CASI 2, 3     14 bit data ( )
SASI-600  bands x 15nm
MASI μm 64 bands 1m
TASI-600  μm    32 bands
TABI μm 160 bands pixels x 3metre (12 bit data)
MASI-600 flight line,
1m resolution.
Displayed 3 bands:
r: 3571 nm
g: 3952nm
b: 4778nm

9. APPLICATIONS: wetland and coastal vegetation mineral composition
agricultural crops
forest structure
soil types  
Some important absorption feature wavelengths for agriculture:
Absorption Feature     Wavelengths (nm)
Water      , 1180, 1450
Chlorophyll      480, 660
Cellulose     , 2100, 2300
N absorption    764, 1640, 2100
Lignin      , 2300
Carbonates     
Value of Principal Components Transformation in classification

10. Satellite borne hyperspectral systems
Hyperion:  launched on Earth Observing 1 (EO-1), Dec 2000; 50km behind Landsat7;

12. Venice by CHRIS (Compact High Resolution Imaging Spectrometer) on PROBA (2001) CHRIS provides 19 bands in the VNIR range ( nm) at 17 m. Each nominal image forms a square of 13 km x 13 km. CHRIS can be reconfigured to provide 63 spectral bands at a spatial resolution of 34 m and can provide up to 150 channels. Launch:

13. The Niau atoll, in the central South Pacific Ocean, acquired by ESA’s Proba satellite on 6 October 2005 with its Compact High Resolution Imaging Spectrometer (CHRIS).
Niau is one of nearly 80 coral reef atolls that forms the Tuamotu Archipelago in French Polynesia.
Gallery: