Correction published on 24 January 2017,
Remote Sens. 2017, 9(2), 94
Dynamic Mapping of Rice Growth Parameters Using HJ-1 CCD Time Series Data
Institute of Remote Sensing and Information Application, Zhejiang University, Hangzhou 310058, China
Jiangsu Meteorological Bureau, Nanjing 210008, China
Department of Agro-meteorology and Geo-informatics, Magbosi Land, Water and Environment Research Center (MLWERC), Sierra Leone Agricultural Research Institute (SLARI), Freetown PMB 1313, Sierra Leone
Author to whom correspondence should be addressed.
Academic Editors: Guijun Yang, Zhenhong Li, Yoshio Inoue and Prasad S. Thenkabail
Received: 25 June 2016 / Revised: 31 October 2016 / Accepted: 3 November 2016 / Published: 9 November 2016
The high temporal resolution (4-day) charge-coupled device (CCD) cameras onboard small environment and disaster monitoring and forecasting satellites (HJ-1A/B) with 30 m spatial resolution and large swath (700 km) have substantially increased the availability of regional clear sky optical remote sensing data. For the application of dynamic mapping of rice growth parameters, leaf area index (LAI) and aboveground biomass (AGB) were considered as plant growth indicators. The HJ-1 CCD-derived vegetation indices (VIs) showed robust relationships with rice growth parameters. Cumulative VIs showed strong performance for the estimation of total dry AGB. The cross-validation coefficient of determination (
) was increased by using two machine learning methods, i.e., a back propagation neural network (BPNN) and a support vector machine (SVM) compared with traditional regression equations of LAI retrieval. The LAI inversion accuracy was further improved by dividing the rice growth period into before and after heading stages. This study demonstrated that continuous rice growth monitoring over time and space at field level can be implemented effectively with HJ-1 CCD 10-day composite data using a combination of proper VIs and regression models.
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MDPI and ACS Style
Wang, J.; Huang, J.; Gao, P.; Wei, C.; Mansaray, L.R. Dynamic Mapping of Rice Growth Parameters Using HJ-1 CCD Time Series Data. Remote Sens. 2016, 8, 931.
Wang J, Huang J, Gao P, Wei C, Mansaray LR. Dynamic Mapping of Rice Growth Parameters Using HJ-1 CCD Time Series Data. Remote Sensing. 2016; 8(11):931.
Wang, Jing; Huang, Jingfeng; Gao, Ping; Wei, Chuanwen; Mansaray, Lamin R. 2016. "Dynamic Mapping of Rice Growth Parameters Using HJ-1 CCD Time Series Data." Remote Sens. 8, no. 11: 931.
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