第一部門：物理数学力学問題 （A）

[S01A-02] Period for filed measurements to identify soil moisture parameters with Merging Particle Filter

*Kazuhiro ODA¹, Keigo KOIZUMI², Shin-ichi ITO³, Hiroshi TSUTSUMI⁴ (1. Osaka Sangyo University, 2. Osaka University, 3. Kagoshima University, 4. West Nippon Expressway Company Limited)

Keywords:Data Assimilationi, Infiltration, Field Measurements, Volumetric water content, Numerical analysis, Slope

In this paper, the numerical simulation was carried out to discuss the field measurements to identify soil moisture parameters. In the case where the field measurements will perform every ten minutes, soil moisture parameters can be identified appropriately using the field measurements for around one day. Moreover, the field measurements without rainfalls is available to identify them.