JpGU-AGU Joint Meeting 2017

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[EJ] Oral

A (Atmospheric and Hydrospheric Sciences) » A-CG Complex & General

[A-CG47] [EJ] Material Circulations in Land Ecosystems

Thu. May 25, 2017 1:45 PM - 3:15 PM 303 (International Conference Hall 3F)

convener:Tomomichi Kato(Research Faculty of Agriculture, Hokkaido University), Takashi Hirano(Research Faculty of Agriculture, Hokkaido University), Hisashi Sato(Department of Environmental Geochemical Cycle Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC)), Ryuichi Hirata(National Institute for Environmental Studies), Chairperson:Hisashi Sato(Department of Environmental Geochemical Cycle Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

2:30 PM - 2:45 PM

[ACG47-14] Extending data assimilation with MODIS LAI observations and the dynamic global vegetation model SEIB-DGVM to multiple locations in Siberia

*Hazuki Arakida1, Shunji Kotsuki1, Shigenori Otsuka1, Yohei Sawada1, Takemasa Miyoshi1 (1.RIKEN Advanced Institute for Computational Science)

Keywords:Data Assimilation, Dynamic Global Vegetation Model, phenology

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. In this study, we extend the previous study to different locations 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. The results showed that the DA system performed well at multiple locations.