科研之友
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摘要
To explore the simulation performance including latent heat flux，heat flux and other land-atmospheric interaction parameters of the boundary layer parameterization schemes，the land surface parameterization schemes，and the reanalysis data in the study area of the Lake Ngoring and the Lake Nam Co，11 WRF experiments were carried out from 21 to 30 June 2013，then compared the simulation results with the observation data. The results showed that the WRF model with different parameterization schemes is potential in simulation the average daily variation characteristics of sensible heat flux，the latent heat flux，and 2 m temperature，however，the WRF model overestimate the maximum value of them. In the Lake Ngoring area，the experiment Case8 （RUC+FNL+YSU）showed the best simulation for latent heat flux on grassland，which RMSE was 27. 16 W·m-2. The experiment Case10（CLM+YSU+ NCEP-2）showed the best simulation for sensible heat flux and 2 m temperature on grassland，which RMSE were 29. 01 W·m-2，1. 41 ℃，respectively. The experiment Case5（CLM+ FNL+BL）showed the best simulation for 2 m temperature above lake. Overall，the Case10 performed best in simulation the heat flux on grassland and 2 m temperature，which generalized RMSE was 1. 70. In the Lake Nam Co area，the experiment Case6（SLAB+FNL+YSU）showed the best simulation for latent heat flux on grassland，which RMSE was 16. 11 W·m-2. The experiment Case8 showed the best simulation for sensible heat flux，which RMSE was 42. 93 W·m-2. The experiment Case7（NOAH+FNL+YSU）showed the best simulation for 2 m temperature above grassland，which RMSE was 0. 69 ℃ . Overall，the Case 1（CLM+YSU+FNL）performed best in simulation the heat flux and 2 m temperature on grassland，which generalized RMSE was 1. 0.
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