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Sensitivity analysis of evaportion duct model |
Wang Benhong,Pan Changming,Bo Wenbo,Sun Fang |
Navel Institute of Hydrographic Surveying and Charting,Tianjin 300061 |
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Abstract Researching the sensitivity of the characteristic parameter of evaporation duct to hydro meteorological element in boundary layer has important reference value for evaluating the accuracy index of observational equipment about evaporation duct at present and feasibility study about forecasting the characteristic parameter of evaporation duct by air-sea coupling numerical prediction model.The method of determining the evaporation duct height for Paulus-Jeske mode (P-J mode) and Babin mode is introduced.The effect to different input parameters for the model sensitivity is diagnosed and analyzed.The results indicate that Babin model is in the most sensitive model when the change happens in the scope of disturbance from temperature and P-J model is in most sensitive one when the change happens in the scope of disturbance from relative humidity in stable conditions.Babin model is in the most sensitive model when the change happens in the scope of disturbance from sea surface temperature and P-J model is the most sensitive one when the change happens in the scope of disturbance from relative humidity in unstable conditions.Babin model is more sensitive than P-J model by the disturbance of hydro meteorological elements.
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Received: 09 September 2013
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