Response of IAP/LASG GOALS model to the coupling of air-sea fresh water exchange

The process of air-sea fresh water exchange is included successfully in the Global-Ocean-Atmosphere-Land-System model developed at the State Key Labor atory of Atmospheric Sciences and Geophysical Fluid Dynamics (LASG). The re sults of the coupled integration show that the climate drift has been contr olled successfully. Analyses on the responses of ocean circulation to the c hanges of surface fresh water or salinity forcing show that the ocean spin- up stage under flux condition for salinity is the key to the implementation of air-sea fresh water flux coupling. This study also demonstrates that th e Modified-Monthly-Flux-Anomaly coupling scheme (MMFA) brought forward by Y u and Zhang (1998) is suitable not only for daily air-sea heat flux couplin g but also for daily fresh water flux coupling.