| 摘要 |
<p>First and second airborne surveys are conducted at opposite times in the diurnal thermal cycle over a predetermined ground area to acquire hyper-spectral image data forming continuous bands in the visible, solar reflected infra-red and thermal infra-red wavebands. Co-registered signals are obtained, for each pixel, representative of expected minimum and maximum radiant temperatures and the albedo. A signal representative of the apparent thermal inertia of the surveyed ground materials is obtained from the survey data signals, permitting exploration for natural resources, for environmental assessment, for identifying ground targets and for other purposes. <IMAGE></p> |
