Anda et al., (2006) had indicated the possible use of remote sensing to identify terrestrial growth of short ragweed: Ambrosia artemisifolia a notorious weed responsible for health hazards. They indicated that remote sensing technology is probably the most efficient tool for locating and detecting ragweed population. The data may be useful for the implemenatation policies aiming at controlling the spread of the obnoxious ragweed.
This endeavour of detecting short ragweed from space was possible due to the joint efforts of Ragweed Research Association and 'Centre National de la Recherche Scientifique' (CNRS). The spectral signature of short ragweed was identified for the first time in the world in 2003. This experiment has clearly demonstrated that areas of 100 sq m are detectable from space.
Of course the researchers were aware of the limitations of the remote sensing method in technical constraints which are necessary to understand before undertaking future programmes of space agencies.
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