Forecasting vegetative stress via remote sensing techniques
1987
Johannsen, C.J. | Ranson, K.J. (Purdue Univ., West Lafayette, IN (USA) | Lab. for Applications of Remote Sensing)
The ability to detect plant stress from space-borne platforms has become more promising because of increasing knowledge about stress (chlorophyll and temperature changes) and the development of better instruments. The recent Landsat satellites with thematic mappers (TM) and the Spot satellite with improved resolution promise better detection of stress, although these instruments still require a cloud-free day for acquiring data. Future satellite instruments, such as those proposed in the Earth Observation System (EOS), which will be placed on the Space Station in about 1994, offer further possibilities for detecti0857ng stress. Models that use climatological as well as remote sensing data are encouraging for predicting areas of stress. It should not be necessary to wait until plants are strongly affected before knowing about drought condit
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