Spectroscopy and Spectral Analysis, Volume. 33, Issue 4, 1057(2013)
Measurement and Analysis of Reflected Information from Crops Canopy Suffering from Wind Disaster Influence
The corn in the grain filling stage fell over in the central region of Jilin province by the Typhoon Bolaven influence. In order to determine the impact of falling over corn canopy on the reflected information, the hyperspectral reflectance was detected at different viewing zenith angles, at the same time, the polarized reflection was also measured. The results from the analysis by combining the reflection and polarization from corn canopy showed that the reflection of falling over corn is low in visible, while increases in the near infrared wavelength. The reflection from falling over corn canopy was more anisotropic than stand-up corn canopy. The reflected light was highly polarized, the polarization of corn canopy provided the probability for distinguishing between falling over corn and stand-up corn. This research provides a basis for estimating the disaster area and lost units.
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BAO Yu-long, ZHANG Ji-quan, LIU Xiao-jing, WANG Yong-fang, MA Dong-lai, SUN Zhong-qiu. Measurement and Analysis of Reflected Information from Crops Canopy Suffering from Wind Disaster Influence[J]. Spectroscopy and Spectral Analysis, 2013, 33(4): 1057
Received: Sep. 12, 2012
Accepted: --
Published Online: Apr. 8, 2013
The Author Email: Yu-long BAO (baoyl751@nenu.edu.cn)