Robert Spiers 



Langley Research Center 



Nationa) Aeronautics and Space Administration 



Hampton, Virginia 



Our earth resources activities are identified with remote sensor 



problems of research organizations: 



1. Working directly with the U. S. Fisheries, we are developing 

 a spectrophotometer to measure the reflectivity of fish schools and 

 ocean water. Output: reflectivity vs. wavelength. An electronic 

 signal processing technique is used to filter radiance noise from ocean 

 measurements . 



2. Working with Virginia Institute of Marine Sciences, we will 

 launch a balloon carrying four cameras with color filters to photograph 

 Chesapeake Bay and the Atlantic. These photographs will be analyzed 

 using ship measurements of ground truth. 



3. Working with Old Dominion College, we will measure changes 

 in off-shore bottom contours with time. 



h. We are employing PhD's from various disciplines to perform a 

 preliminary design of ERS systems. 



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