Floodplain model (CaMa-Flood), which explicitly parameterizes the sub-grid-scale topography of a floodplain, thus describing floodplain inundation dynamics. It has been widely used in a broad filed of research, such as impact assessment of climate change, disaster prevention, and land-atmosphere interaction.

Further, Tokuda et al. (2019 and 2021) developed the Heat Exchange and AdvecTion with fLood and Ice NumeriKs (HEAT-LINK), and Tightly Coupled framework for Hydrology of Open water Interactions in River–lake network (T-CHOIR) on top of CaMa-Flood, a physically-based river water temperature scheme that enables to explicitly represent fluvial- and thermo-dynamics through global river networks and lakes simultaneously and to simulates seasonal freeze-thaw cycles as well.

This seminar, focusing on the role of riverine dynamics for energy and water exchanges, will introduce history of terrestrial hydrological modeling with details of CaMa-Flood, HEAT-LINK and T-CHOIR model development, and a few selected applications of the models.

Refs)

T. Oki and Y. C. Sud (1998) Design of Total Runoff Integrating Pathways (TRIP) - A global river channel network. Earth Interactions, 2.

T. Oki, T. Nishimura, and P. Dirmeyer, Assessment of annual runoff from land surface models using Total Runoff Integrating Pathways (TRIP), J. Meteor. Soc. Japan, 77, 235-255, Mar. 1999.

Tokuda, D., H. Kim, D. Yamazaki, and T. Oki (2019) Development of a global river water temperature model considering fluvial dynamics and seasonal freeze-thaw cycle, Water Resources Research, doi:10.1029/2018WR023083

Tokuda, D., H. Kim, D. Yamazaki, and T. Oki (2021) Development of a coupled simulation framework representing the lake and river continuum of mass and energy (TCHOIR v1.0), Geophys. Model Dev., 14, 9, 5669–5693, doi.org/10.5194/gmd-14-5669-2021

Yamazaki, D., S. Kanae, H. Kim, and T. Oki (2011), A physically based description of floodplain inundation dynamics in a global river routing model, Water Resources Research, 47, W04501, doi:10.1029/2010WR009726