Comparison of sugar beet crop cover estimates from radar and optical data

被引：7
|
作者：
Vyas, SP [1 ]
Steven, MD
Jaggard, KW
Xu, H
机构：
[1] Univ Nottingham, Sch Geog, Nottingham NG7 2RD, England
[2] IACR Brooms Barn, Bury St Edmunds IP28 6NP, Suffolk, England
来源：
INTERNATIONAL JOURNAL OF REMOTE SENSING | 2003年 / 24卷 / 05期
关键词：
D O I：
10.1080/01431160210164262
中图分类号：
TP7 [遥感技术];
学科分类号：
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要：
This paper reports I comparison of the capabilities of radar and optical satellite sensor data to estimate crop canopy cover, which is a key component of productivity estimates for sugar beet crops. A version of the ater-cloud model that had previously been calibrated for this crop. was inverted to calculate Leaf Area Index (LAI) and crop cover (f) from ERS Synthetic Aperture Radar (SAR) data. SPOT data were used to calculate the Optimized Soil Adjusted Vegetation Index (OSAVI), from which crop canopy cover was estimated using a relationship determined previously by canopy modelling. Direct comparison of crop cover estimates from the two data sources indicates that their interrelationship is consistent between dates and seasons.
引用
收藏
页码：1071 / 1082
页数：12
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