Title :
A study on GPP inversion of different ecosystems by remote sensing and impact factors comparison
Author :
Li, Li ; Liangfu, Chen ; Yanhua, Gao ; Qinhuo, Liu
Author_Institution :
State Key Lab. of Remote Sensing Sci., Chinese Acad. of Sci., Beijing, China
Abstract :
Light use efficiency model is one of the method to retrieval regional scale Gross Prime Productivity (GPP). Absorbed Photosynthetic Active Radiation (APAR) and Light use efficiency are the main parameters of this kind of model. At the same time, light use efficiency is affected by air temperature and precipitation. In this article, one of the Light use efficiency model is used to retrieval daily GPP of the Chinese five typical ecosystem experimental station in 2003. The inversion results are compared with MOIDS NPP product and station measurement data. Based on the different air temperature and precipitation condition of the different station, it also analyses the sensitivity of parameters.
Keywords :
atmospheric precipitation; atmospheric temperature; ecology; remote sensing by radar; AD 2003; Absorbed Photosynthetic Active Radiation; China; GPP inversion; Gross Prime Productivity; Light use efficiency model; MOIDS NPP product; air temperature; ecosystem experimental station; impact factors; precipitation condition; remote sensing; station measurement data; Biological system modeling; Ecosystems; Equations; Information management; Laboratories; Production; Productivity; Remote sensing; Temperature sensors; Vegetation; FPAR; GPP; Light use efficiency;
Conference_Titel :
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-3394-0
Electronic_ISBN :
978-1-4244-3395-7
DOI :
10.1109/IGARSS.2009.5417318
