| 要旨トップ | 目次 | 日本生態学会第65回全国大会 (2018年3月、札幌) 講演要旨
ESJ65 Abstract


一般講演(ポスター発表) P3-075  (Poster presentation)

Data assimilation experiments with MODIS LAI observation and the dynamic global vegetation model SEIB-DGVM at a deciduous broad-leaved forest in Japan

*Hazuki Arakida(RIKEN AICS), Sachiho A Adachi(RIKEN AICS), Shunji Kotsuki(RIKEN AICS), Shigenori Otsuka(RIKEN AICS), Hisashi Sato(JAMSTEC), Takemasa Miyoshi(RIKEN AICS)

※The title and the authors are changed. Please refer to the errata.
        
In the previous study, Arakida et al. developed a data assimilation system based on a particle filter approach with a dynamical global vegetation model known as the SEIB-DGVM (Spatially Explicit Individual-Based Dynamic Global Vegetation Model), and assimilated the satellite-based MODIS LAI (Leaf Area Index) observations successfully. We extend the previous study to a large domain in Siberia and estimate the state variables including carbon flux, water flux, heat flux, vegetation structure, and parameters related to the phenology of the deciduous needle leaved tree and grass. At the 64th annual meeting in 2017, we presented the results of LAI and carbon flux estimates. This year, we further present the results of the estimates of the model parameters and additional state variables such as above-ground biomass, tree LAI, and evapotranspiration. We also compare the estimates of above-ground biomass, tree LAI, and carbon flux with other previous studies. The results show that the DA system generally performs well at multiple locations, although systematic differences are found from other studies.


日本生態学会