文献类型：会议论文

英文题名：Capability of multi-temporal Radarsat-2 data in monitoring canola crop and its plant height

作者：Yang, Hao[1,2] Chen, Erxue[1] Li, Zengyuan[1] Yang, Guijun[2] Xu, Xingang[2] Yuan, Lin[2] Feng, Qi[1] Zhao, Lei[1]

第一作者：Yang, Hao

通信作者：Yang, H[1]|[a0005392d041eabde44eb]杨浩;

机构：[1]Chinese Acad Forestry, Inst Forest Resource Informat Tech, Beijing 100091, Peoples R China;[2]Beijing Acad Agr & Forestry Sci, Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China

会议论文集：3rd International Conference on Agro-Geoinformatics (Agro-Geoinformatics)

会议日期：AUG 11-14, 2014

会议地点：Beijing, PEOPLES R CHINA

语种：英文

外文关键词：synthetic aperture radar; crop growth monitoring; height estimation; polarimetric feature

年份：2014

摘要：The potential capability of C-Band fully polarimetric synthetic aperture radar data for monitoring canola height was investigated in this study. Polarimetric parameters of canola fields were extracted with polarimetric decompositions method from multi-temporal Radarsat-2 images. Temporal behavior of polarimetric features with different varieties and sowing dates was presented from its sowing to its harvest. It was found that the evolution curve of Entropy and Alpha-angle parameters is highly consistent with the evolution trend of canola height over time. A second order polynomial model was applied to inverse the canola height over a farmland area of China, during the 2013 growing season. Even if the proposed method is simple, the result was encouraging with a high level of agreement (R-2=0.96, RMSE=13.1cm, RE=14.3%). Therefore, it revealed a strong capability of polarimetric synthetic aperture radar data in characterizing canola plant height, especially in vegetative growth stage.