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Proceedings Paper

Validation of MOD15-LAI and MOD13 using insitu rice data
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Paper Abstract

Before MODIS products will be applied in rice monitoring, it need to be validated. A site-intensive MODIS product validation on rice planting region in southern China was performed. Validation approach involved scaling up independent fine-grained datasets, including ground and high spatial resolution imagery (Thematic Mapper), to the coarser MODIS spatial resolutions. Results showed that The difference between situ rice LAI and MOD15-LAI in different rice growth sage is different. The differences are bigger in booting stage, heading stage and milking stage, but smaller in tiller stage and maturing stage. The 16-day composited MODIS reflectance and VIs matched well with ground measurement reflectance and VIs. Otherwise, results indicate that the MODIS algorithm will underestimate LAI value by about 5-10 % in total from 1-km resolution data over the Situ rice LAI at Southern China, the mean and standard deviation deviated from MOD15-LAI are smaller than that of situ rice LAI.

Paper Details

Date Published: 11 January 2007
PDF: 9 pages
Proc. SPIE 6411, Agriculture and Hydrology Applications of Remote Sensing, 64111F (11 January 2007); doi: 10.1117/12.693314
Show Author Affiliations
Xiuju Wu, Zhejiang Gongshang Univ. (China)
Qian Cheng, Zhejiang Gongshang Univ. (China)
Zhihua Mao, Second Institute of Oceanography, State Oceanic Administration (China)

Published in SPIE Proceedings Vol. 6411:
Agriculture and Hydrology Applications of Remote Sensing
Robert J. Kuligowski; Jai S. Parihar; Genya Saito, Editor(s)

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