What does Vic mean?

Vic(Variable inflation Capacity) model is a large-scale distributed hydrological model developed by researchers from the University of Washington, the University of California, Berkeley and Princeton University based on the ideas of Wood and others. It can also be called "Variable Infiltration Capacity Model".

VIC model can simulate the energy balance and water balance in the water cycle at the same time, which makes up for the deficiency of traditional hydrological model in describing the energy process. In practical application, VIC model can only calculate the water balance, output the runoff and evaporation on each grid, and then couple the confluence model to transform the runoff on the grid into the flow process at the outlet section of the basin.

Extended data:

Hydrological phenomena and laws are very complex, and the model of studying the changing laws of hydrological processes and the physical properties of some elements by using physical scenes is called hydrological physical model. Hydrological experiment is the core link of hydrological physical model, and it is a scientific experiment to explore and study hydrological phenomena and processes and analyze their causes.

Hydrological phenomena are restricted by many natural factors and influenced by human activities. It is difficult for general hydrological observation and analysis to clearly reveal their physical processes and relationships. It is necessary to carry out systematic and controlled observation and experiment in the field or laboratory with special procedures, devices and equipment.

The main purpose of hydrological experiment research is to reveal the physical mechanism of hydrological phenomena under natural conditions and under the influence of human activities, as well as the relationship between various hydrological elements; Problems that need to be recognized and solved in the existing hydrological theory and application research; Test existing laws and theories.

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