Title :
Winter wheat yields assessment using data assimiation method combined modes-lai and swap model
Author :
Hao, Jiang ; Wenbo, Xu ; Jianxi, Huang ; Xiaoliang, Sun ; Weiqi, Zhou
Author_Institution :
Inst. of Geo-Spatial Inf. Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this paper, we focus on winter wheat yield assessment in Hebei province in china. The method take two procedures: first, we extract phenological transition dates from MODIS-LAI. Then, using SCE_UA algorithm, we assimilated the phenology information into crop growth model SWAP. The results shown that an improved accuracy of crop yield can be achieved compared to the method with no assimilation algorithm.
Keywords :
crops; data assimilation; geophysical techniques; radiometry; China; Hebei province; MODIS-LAI; SCE_UA algorithm; SWAP model; crop growth model; data assimilation method; phenological transition dates; winter wheat yields assessment; Adaptation model; Agriculture; Atmospheric modeling; Biological system modeling; Data models; MODIS; Remote sensing; MODIS LAI; SWAP model; assimilation; phenology information; yield;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-9565-8
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2010.5650012
