Rice crop parameter retrieval using multi-temporal, multi-incidence angle Radarsat SAR data

被引：94
作者：
Chakraborty, M
Manjunath, KR
Panigrahy, S [1 ]
Kundu, N
Parihar, JS
机构：
[1] ISRO, Ctr Space Applicat, Ahmadabad 380015, Gujarat, India
[2] IWM&ED, Kolkata, India
来源：
ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING | 2005年 / 59卷 / 05期
关键词：
rice crop; RADARSAT SAR; standard beam; incidence angle; crop age; crop height; correlation analysis;
D O I：
10.1016/j.isprsjprs.2005.05.001
中图分类号：
P9 [自然地理学];
学科分类号：
0705 ; 070501 ;
摘要：
Temporal RADARSAT Standard beam SAR data of different incidence angle were analysed to study the temporal backscatter of rice crop for a predominant rice-growing region in West Bengal, India. Correlation studies of backscatter with crop growth parameters were carried out. Second order polynomial was the best fit obtained for crop age and crop height. Shallow angle data (>40 degrees) was found better correlated to crop height than steep angle (23 degrees) data. Inversion algorithm was used to generate spatial maps of crop height and age. The results validated over a village showed an over all 90% accuracy. (C) 2005 International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS). Published by Elsevier B.V. All rights reserved.
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收藏
页码：310 / 322
页数：13
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