Abstract:

〗Lake and its drainage catchment are viewed as a community existed in nature, which constitutes essential component of the regional and global water cycles. Integrated simulation of hydrological and hydrodynamic processes is very important for lake catchment water resource planning and management. The review of integrated simulation provides useful information for understanding the model development and model mechanism. It also provides critical insights into the international modeling approaches. Conventional simulation approach mainly combines the catchment hydrological model and lake water balance model, which was used to calculate the catchment hydrological processes and lake water budgets. However, the lake water balance method only can give the general description and this method may not reflect the lake system with significant water gradients and complex hydrodynamic behaviors in space. The integrated model based on the catchment hydrological models and lake hydrodynamic models overcomes the difficulties in complete simulation for the largescale area. In this paper, we described the advances in integrated hydrological and hydrodynamic simulation for lakecatchment systems in various scales, thus summarized the advantages and deficiencies of the external coupling technique, internal coupling technique and full coupling technique using in the integrated models. In theory, the internal and full coupling techniques are the most reliable methodologies for the integrated simulations, but they usually have many numerical problems. The external coupling technique is the most effective and easiest approach to link different model components, but it is not adequate to represent the feedbacks between models. Overall, the coupling techniques are useful to improve our understanding of integrated hydrological and hydrodynamic models around many counties