Title: Review of the Studies and Progresses of Hydrological Circle and Mechanisms in River Basins
Abstract: This paper reviews our current conceptual understanding about the basic processes and mechanisms of hydrological cycle and various mathematical models used to describe these processes.Components about the hill-slope hydrological processes are also discussed.Hill slopes are a kind of basic units in a river basin.So the progresses,such as rainfall interception,evapotranspiration,infiltration,interflow and overflow in hill-slope hydrological cycle,are reviewed. The affecting factors,mechanisms and mathematical models of various processes in hydrological cycle are described.It is pointed out that the demands to hydrology models are increased in predicting the hydrological effects of land cover changes by human activities together with the natural evolution on river basin scale.The new progresses about hydrological modeling in river basins are summarized.Then the progresses about distributed hydrological modeling are discussed.While developing and applying a distributed hydrological model,three main problems including the complexity of the model,scales and calibration of parameters must be considered.With the more and more serious problems due to the climate change and human activities,the studies on both the mechanisms of hydrological cycle and development of physically based distributed hydrological models which are important in researching hydrological cycle should be highlighted.The new progresses in remote sensing(RS) technology,Geographic Information Systems(GIS) and computer science since recent decades will make a vast amount of spatially distributed data processing and distributed hydrological modeling possible.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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