. TEMPERAL SPECTRAL MEASUREMENTS OF RICE CROP 
WITH THE GSFC MARK-II THREE BAND HAND-HELD RADIOMETER 
by 
A.J. CHEN - H.T. WANG and C.C. LIN 
Department of Atmospheric Physics 
National Central University 
Chung-Li, Taiwan 
REPUBLIC OF CHINA 
ABSTRACT 
In the past, we had utilized Landsat MSS data for 
agricultural resource assessment in Taiwan. Our case 
study indicated that the over-all accuracy was about 887, 
for estimating the acreage of the paddy field. We, like 
many other workers, have come to realize that ground- 
based in-situr remote sensing studies were needed to 
better understand the physics between the natural materials 
and their reflectances as a function of wavelength. The 
radiometer to be employed is the one being developed by 
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