, Volume 18, Issue 1, pp 139-154

Validation of IAP94 land surface model over the Huaihe River basin with HUBEX field experiment data

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Off—line experiments have been conducted with IAP94 land surface model on different surface types (cropland, forest and paddy field) in different seasons (spring, summer and autumn) over the Huaihe River basin. The simulated energy fluxes and canopy temperature by IAP94 agree quite well with the observations, simulation results also show that IAP94 can successfully simulate the tendency of total soil water content variation. The comparison results between simulation and observation indicate that strong evaporation at the paddy field in summer should be paid more attention to within the land surface models, and model’s performance leads to the conclusion that IAP94 is capable of reproducing the main physical mechanisms governing the land—surface processes in the East Asian semi-humid monsoon region.

National Key Porgramme for Developing Basic Sciences (G1998040900—parti) and Supported by the National Natural Science Foundation of China (No: 49794030 and 49823002).