Monitoring leaf area of sugar beet using ERS-1 SAR data

被引：33

作者：

Xu, H ^{[1
]}

Steven, MD ^{[1
]}

Jaggard, KW ^{[1
]}

机构：

[1] IACR, BURY ST EDMUNDS IP28 6NP, SUFFOLK, ENGLAND

来源：

INTERNATIONAL JOURNAL OF REMOTE SENSING | 1996年 / 17卷 / 17期

关键词：

D O I：

10.1080/01431169608949158

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

This paper presents the results of field testing a radar model which relates leaf area index to radar backscatter for ERS-1 C-band VV polarization SAR data. Ground truth measurements of leaf area index and soil moisture content were made in selected sugar beet fields, with simultaneous acquisition of ERS-1 SAR image data. Radar backscatter coefficients were derived from the calibrated ERS-1 SAR data. The Leeuwen and Clevers expression of the water cloud model was fitted to determine the in situ relationship between radar backscatter and leaf area index. The model can be inverted analytically to calculate leaf area index from radar backscatter. The results show considerable potential for the operational application of ERS-1 SAR data in crop monitoring.

引用

页码：3401 / 3410

页数：10

共 12 条

[1] ESTIMATING ABSORBED PHOTOSYNTHETIC RADIATION AND LEAF-AREA INDEX FROM SPECTRAL REFLECTANCE IN WHEAT [J].