Landsat 



Multlspectral Thermatic Panchromatic S.P.O.T. 



Scanner (MSS) Mopper (TM) Band on High Resolution 



LandooU 1,2,3,4,5 Landeols 4,5,6 Landsat 6 Visible (HRV) 



NOAA 

 Advanced Very High 

 Resolution Radiometer (AVHRR) 

 NOAA 6,8,10 NOAA 7,9,11 



Siue": 





TF^ 



f- — 1.1km—] 



Greenj Band 2 

 Band 3 



Band 1 





Band 2 





^J 



Band 3 





1.65 

 1.75 



Areas of Coverage 



Landsot Image Area 



10.0 

 10.5 

 11.5 

 11.0 

 12.0 

 12.5 



Band 6 

 Thermal Infrared 



Figure 15. Spectral resolution and approximate spatial resolution of sensors on LANDSAT, 

 SPOT, and NOAA satellites (from Earth Observation Satellite Company literature 

 and Huh and Leibowitz (1986)) 



Several generations of satellites have flown in the NOAA series. The most 

 recent ones contain the Advanced Very High Resolution Radiometer 

 (AVHRR). This provides increased aerial coverage but at much coarser reso- 

 lution than the Landsat or SPOT satellites. Figure 14 is an example of an 

 AVHRR Channel 4 image of the northeast Gulf of Mexico. More information 

 on the wide variety of satellites can be found in textbooks on remote sensing 

 (i.e. Colwell 1983; Lillesand and Kiefer 1987; Richards 1986; Sabins 1987; 

 Siegal and Gillespie 1980; Stewart 1985). 



Aircraft-mounted scanners, including thermal sensors and radar and micro- 

 wave systems may also have applications in coastal studies. LIDAR (light 



26 



Chapter 2 Secondary Sources of Coastal Information 



