Abstract
In order to simulate global river discharge, global river routing network models (GRRNMs) have rapidly developed over the past decade. One practical problem of current GRRNM, is that they do not deal with reservoir operation. In this paper, simple reservoir operation model (ROM) for Total Runoff Integrating Pathways (TRIP), which is one of the GRRNMs, is introduced. The model has simple structure and its global parameters such as reservoir information, distribution of irrigated area or climatic rainfall are derived from published global data sets, aims its global application. ROM is applied to Bhumibol and Sirikit dam in the Chao Phraya river in Thailand as a case study. The calculated release and storage of them compared well with the observation, for 17 years simulation. Consequently the discharge at the lower reach calculated by TRIP-with ROM is dramatically improved compared with original TRIP calculation. It supports the usefulness of our model and possibility of global application.
