Articles | Volume 14, issue 9
Geosci. Model Dev., 14, 5669–5693, 2021

Special issue: Modelling inland waters in a changing climate (GMD/ESD/TC...

Geosci. Model Dev., 14, 5669–5693, 2021

Model description paper 14 Sep 2021

Model description paper | 14 Sep 2021

Development of a coupled simulation framework representing the lake and river continuum of mass and energy (TCHOIR v1.0)

Daisuke Tokuda et al.

Model code and software

TCHOIR: Tightly Coupled framework for Hydrology of Open water Interactions in River–lake network (1.1) Daisuke Tokuda, Hyungjun Kim, Dai Yamazaki, and Taikan Oki

Short summary
We developed TCHOIR, a hydrologic simulation framework, to solve fluvial- and thermodynamics of the river–lake continuum. This provides an algorithm for upscaling high-resolution topography as well, which enables the representation of those interactions at the global scale. Validation against in situ and satellite observations shows that the coupled mode outperforms river- or lake-only modes. TCHOIR will contribute to elucidating the role of surface hydrology in Earth’s energy and water cycle.