The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part Bl. Beijing 2008 
954 
And we show four scenes of generated LAI map in fig 
8,,which are 57,145,177 and 209 day of yeae, respectively. 
X w( T¡ > r i ~ x b ( r ¡ ))] ( 2 ) 
= + — ; 
Yj w ( r .' r j) 
y=i 
3. CONCLUSION AND DISCUSSION 
Because of the low spatial resolution, although MODIS LAI 
can give us time serial data, can’t meet our study need. In this 
paper, based on the BJ-1 LAI estimation, fusing on time series 
MODIS LAI products, and the BJ-1 LAI is used to adjust this 
curve of time-series LAI, we generate the high spatial and 
temporal resolution LAI product of Beijing-1 images. And this 
method is very useful for us to get high spatial and temporal 
resolution LAI product by fusing the data with low spatial 
resolution, but high temporal resolution and the data high 
spatial resolution, but low temporal resolution, and taking its 
advantages, respectively. So we can get the right data for our 
study. Through this study, we can get the LAI products of 
Beijing-1 images, which is with the high spatial resolution and 
high time resolution (32m, 4-day product). This product will 
provide more information of vegetation for BJ-1 microsatellite 
data applications. But this method has still in the course of 
testing, and next we would apply it to the larger area. 
177 day 209day 
Fig. 8 The generation of time serial Beijing-1 LAI images. 
57 day 
145day 
ACKNOWLEDGEMENTS 
We thanks for BLMIT supporting us free Beijing-1 images. 
This research was supported in part by the National Natural 
Science Foundation of China(No.40701116,40571107), the 
open fund about Beijing-1 image., and the Special Funds for 
Major State Basic Research Project (2007CB714407), National 
863 Program (2002AA130010) 
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