Title :
The fusion of THAICHOTE, X and C-band Synthetic Aperture Radar imagery for estimating grain yield
Author :
Kruasilp, Jiratiwan ; Prakobya, Amornchai ; Chitpaiboon, Chonticha ; Bingfang Wu ; Jihua Meng
Author_Institution :
Inst. of Remote Sensing & Digital Earth, Beijing, China
Abstract :
The monitoring of crop production is an important component of the assessment of the economic impact on agriculture in global markets. This paper investigates the suitability of COSMOS-kyMed X-band and Radarsat-2 C-band data fused with THAICHOTE optical imagery to estimate above-ground biomass of rice over the whole growing period, and eventually yield, in irrigated areas of Central Thailand. Ground-based plots were measured in parallel with Synthetic Aperture Radar (SAR) derived variables such as plant density, height, water level, Leaf Area Index (LAI) and biomass. Biophysical characteristics of rice and COSMO-SkyMed as well as Radarsat-2 backscattering coefficients are analyzed. The resultant fusion technique is compared to national agricultural statistical data. Results show that X-band HH backscatters and Optical Vegetation Indices are a promising method to estimate rice yield.
Keywords :
geophysical image processing; image fusion; radar imaging; remote sensing by radar; synthetic aperture radar; vegetation; C-band SAR image fusion; COSMO-SkyMed X-band data; COSMO-SkyMed backscattering coefficient; Central Thailand; Radarsat-2 C-band data; Radarsat-2 backscattering coefficient; THAICHOTE SAR image fusion; THAICHOTE optical imagery; X-band HH backscatters; X-band SAR image fusion; agriculture; crop production monitoring; economic impact assessment; global markets; grain yield; ground-based plots; leaf area index; optical vegetation indices; plant density; plant height; rice above-ground biomass; synthetic aperture radar; water level; whole growing period; Adaptive optics; Agriculture; Biomass; Biomedical optical imaging; Optical imaging; Optical sensors; Synthetic aperture radar; COSMO-SkyMed; THAICHOTE; X-band; biomass;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4799-1114-1
DOI :
10.1109/IGARSS.2013.6723810
